uli I L^O^ THE LIBRARY OF THE UNIVERSITY OF NORTH CAROLINA ENDOWED BY THE DIALECTIC AND PHILANTHROPIC SOCIETIES BOTANY LIBRARY ^ N UNIVERSITY OF N.C. AT CHAPEL HILL 00022228242 THE LIBRARY OF THE UNIVERSITY OF NORTH CAROLINA From the library of Henry Roland Totten presented by the Botanical Garden Foundation 1974 Digitized by the Internet Archive in 2012 with funding from University of North Carolina at Chapel Hill http://archive.org/details/plantstheirchildpars PLANTS *whem5 AND THEIR CHILDREN BY MRS. WILLIAM STARR DANA AUTHOR OF " HOW TO KNOW THE WILD FLOWERS ILLUSTRATED BY ALICE JOSEPHINE SMITH IP NEW YORK • : • CINCINNATI • : • CHICAGO AMERICAN BOOK COMPANY Copyright, 1896, by AMERICAN BOOK COMPANY. DANA S PLANTS. W. P. 2 m lima «y PREFACE A CHILD'S reading book, it seems to me, should secure for the child three things, — practice in the art of reading, amusement, and instruction. Whether my little book is fitted to attain this threefold object, others must decide ; but in laying it before the public, let me urge careful attention to a few sugges- tions. i. As the book is arranged so as to begin with the opening of the school year and to follow it to its close, the interest of pupils will be increased by reading the different chapters during the seasons to which they refer. 2. The teacher should exercise judgment as to the omission of any chapter or group of chapters which may seem beyond- the comprehension of the class. With a little care, such an omission may nearly always be made without injury to the usefulness of the rest of the book. 3. Specimens of the objects described, when these can be found in the locality, should always be on exhibition in the schoolroom. Whenever possible, the children themselves should collect and handle these specimens. If for any reason this collection by the children cannot be accomplished, the teacher should not fail to anticipate the readings, and to provide the objects mentioned. By the observance of these simple and practicable suggestions, it is believed that, while the children are being trained in the art of reading, their powers of observation and of reasoning will be devel- 3 oped, and that they will be inspired with a lifelong interest in nature. The child's mind is peculiarly alive to the charm of nature when she is studied in detail, and through her it can be trained to observe accurately and to reason logically. Through the neglect of nature study, the wits of the country child lose just the sharpening they most need, to say nothing of a stim- ulus and delight which can ill be spared by one whose mental life is apt to be monotonous. The wits of the city child may secure in other ways the sharpening so essential to success in life ; yet the training afforded by a logical study of plants, and the pleasure which such a study, rightly directed, is sure to yield, are as invaluable to him as to his country cousin. Experience having proved to my keenest satisfaction that almost invariably children can be interested in stories of plants and their children, to the children of the land I offer this little book, in the earnest hope that its pages may lead at least some few of them tc find in life a new joy and a deeper meaning. The aid derived from many sources in the preparation of " Plants and their Children " is heartily acknowledged ; but more especially I wish to extend my thanks to Messrs. Holt & Co. for their courtesy in allowing the reproduction of several cuts from their valuable and interesting publication, "The Natural History of Plants," translated from the German of Kerner von Marilaun. CONTENTS PART I. — FRUITS > AND SEEDS PAGE In the Orchard .... 9 The Story of the Bee . 16 The Apple's Treasures • 19 What a Plant lives for 21 The World without Plants • 24 How the Apple shields its Young • 27 Some Cousins of the Apple • 3i Uneatable Fruits • 34 More Cousins of the Apple . 36 Still more Cousins • 39 In the Woods .... 4i Why Seeds travel 50 Some Little Tramps . 5 2 Seed Sailboats .... 56 Winged Seeds .... 61 Shooting Seeds 63 The Chestnut and Other Seeds 67 Some Strange Stories 69 PART II. — you: ^G PLANTS How the Baby Plant lives A Schoolroom Garden A Schoolroom Garden {Concluded) 5 75 79 35 Seeds as Food An Impatient Plant Baby A Humpbacked Plant Baby 9i 94 PART III ROOTS AND STEMS Root Hairs .... Roots and Underground Stems Above-ground Roots What Few Children know Plants that cannot stand alone Some Habits of Stems . Stems and Seed Leaves . •• Well done, Little Stem " 99 102 106 112 114 117 119 122 PART IV. — BUDS Buds in Winter . .125 A Happy Surprise 127 Some Astonishing Buds . 129 PART V. — LEAVES How to look at a Leaf .... The most Wonderful Thing in the World How a Plant is built How a Plant's Food is cooked A Steep Climb How a Plant perspires . How a Plant stores its Food . Leaf Green and Sunbeam Plant or Animal ? . How we are helped by Leaf Green and Sunbeam How a Plant breathes . . . 135 138 142 143 147 148 149 151 154 156 158 80TAJSTY LIBRART The Diligent Tree Leaves and Roots Leaf Veins Leaf Shapes . Hairy Leaves . Woolly and " Dusty Prickles and Poison Some Cruel Traps . More Cruel Traps . The Fall of the Leaf Leaves PART VI. — FLOWERS The Building Plan of the Cherry Bl Lilies About Stamens Flower Dust, or Pollen About Pistils . The First Arrival . Pussy Willows Alders and Birches The Great Trees The Unseen Visitor Plant Packages Underground Storehouses Different Building Plans A Celebrated Family Clever Customs Flowers that turn Night into Day Horrid Habits The Story of the Strawberry A Cousin of the Strawberry Another Cousin Pea Blossoms and Peas . The Clover's Trick More Tricks ..... An Old Friend .... The Largest Plant Family in the World Robin's Plantain, Golden-rod, and Aster The Last of the Flowers PAGE 240 243 244 247 248 251 254 PART VII. — LEARNING TO SEE A Bad Habit . A Country Road A Holiday Lesson 257 261 264 PLANTS AND THEIR CHILDREN 3>SKC Part I — Fruits and Seeds ;/XKc THE WORLD WITHOUT PLANTS WE have just learned that the fruit is important because it holds the plant's seeds ; and we know that seeds are important because from them come the new plants for another year. Let us stop here one moment, and try to think what would happen if plants should stop having seeds, if there should be no new plants. We all, and especially those of us who are children, carry about with us a little picture gallery of our very own. In this gallery are pictures of things which our 25 real eyes have never seen, yet which we ourselves see quite as plainly as the objects which our eyes rest upon in the outside world. Some of these pictures are very beautiful. They show us things so wonderful and de- lightful and interesting, that at times we forget all about the real, outside things. Indeed, these pictures often seem to us more real than anything else in the world. And once in a great while we admire them so earnestly that we are able to make them come true ; that is, we turn our backs upon them, and work so hard to bring them about, that at last what was only a picture be- comes a reality. Perhaps some of you children can step into this little gallery of your own, and see a picture of the great world as it would be if there should be no new plants. This picture would show the world some hundreds of years from now ; for, although some plants live only a short time, others (and usually these are trees) live hun- dreds of years. But in the picture even the last tree has died away. Upon the earth there is not one green, growing thing. The sun beats down upon the bare, brown deserts. It seems to scorch and blister the rocky mountain sides. There are no cool shadows where one can lie on a summer afternoon ; no dark, ferny nooks, such as children love, down by the stream. But, after all, that does not matter much, for there are no children to search out such hidden, secret spots. "No children! Why, what has happened to them?" Well, if plants should stop having children (for the little young plants that come up each year are just the 26 children of the big, grown-up plants), all other life — the life of all grown people, and of all children, and of all animals — would also come to an end. Did you ever stop to think of this, — that your very life depended upon these plants and trees ? You know that they are pretty to look at, and pleasant to play about; but I doubt if you ever realized before, that to them you owe your life. Now let us see how this can be. What did you have this morning for breakfast ? Bread and milk ? Well, of what is the bread made ? Flour? Yes, and the flour is made from the seeds of the wheat. If the wheat stopped having seeds, you would stop having bread made from wheat seeds. That is plain enough. Then the milk, — where does that come from? "That comes from the cows, and cows are not plants," you say. True, cows are not plants, but what would happen to the cows if there were no plants ? Do not cows live in the green meadows, where all day long they munch the grass plants? And would there be any green meadows and all-day banquets, in years to come, if the grass did not first flower, and then seed? So then, no grass, no cows, and you would be without milk as well as without bread for breakfast. And so it is with all the rest of our food. We live on either plants or animals. If there were no plants, there would be no animals, for animals cannot live without plants. It is something like the house that Jack built, isn't it? 2/ "We are the children that drink the milk, that comes from the cows, that eat the grass, that grows from the seeds in the meadow." "If there were no seeds, there would be no grass to feed the cows that give us our milk for breakfast." And so it is everywhere. Plants give us a kind of food that we must have, and that only they can give. They could get on well enough without animals. In- deed, for a long time they did so, many hundreds of years ago. But animals cannot live without plants. I think you will now remember why seeds are of such great importance. D>^C HOW THE APPLE SHIELDS ITS YOUNG SOME time ago you noticed that apple seeds were packed away within the apple as neatly as though they were precious jewels in their case. When we see something done up very carefully, sur- rounded with cotton wool, laid in a beau- tiful box, and wrapped about with soft paper, we feel sure that the object of all this care is of value. Even the outside of such a package tells us that something precious lies within. But what precious jewels could be laid away more carefully than these apple seeds? And what jewel case could boast a more beautiful outside than this red-cheeked apple (Fig. ii)? 28 Pass it around. Note its lovely color, its delicate markings, its satin-like skin. For myself, I feel sure that I never have seen a jewel case one half so beautiful. Then cut it open and see how carefully the soft yet firm apple flesh is packed about the little seeds, keeping them safe from harm (Fig. 12). Fig. 12 But perhaps you think that anything so good to eat is not of much use as a protection. It takes you boys and girls about half a minute to swallow such a jewel case as this. But here comes the interesting part of the story. When you learn how well able this apple is to defend from harm its precious seeds, I think you will look upon it with new respect, and will own that it is not only a beautiful jewel case, but a safe one. All seeds need care and wrapping-up till they are ripe ; for if they fall to the ground before they are well grown, they will not be able to start new plants. You know that you can tell whether an apple is ripe by looking at its seeds, for the fruit and its seeds ripen together. \\ nen the apple seeds are dark brown, then the apple is ready to be eaten. But if, in order to find out whether an apple was ripe, you were obliged always to examine its seeds, you might destroy many apples and waste many young seeds be- fore you found what you wished ; so, in order to protect its young, the apple must tell you when it is ready to be eaten in some other way than by its seeds. How does it do this? Why, it puts off its green coat, 2 9 and instead wears one of red or yellow ; and from being hard to the touch, it becomes soft and yielding when you press it with your fingers. If not picked, then it falls upon the ground in order to show you that it is wait- ing for you; and when you bite into it, you find it juicy, and pleasant to the taste. While eating such an apple as this, you can be sure that when you come to the inner part, which holds its seeds, you will find these brown, and ripe, and quite ready to be set free from the case which has held them so carefully all summer. But how does the apple still further protect its young till they are ready to go out into the world ? Well, stop and think what happened one day last summer when you stole into the orchard and ate a quantity of green apples, the little seeds of which were far too white and young to be sent off by themselves. In the first place, as soon as you began to climb the tree, had you chosen to stop and listen, you could almost have heard the green skins of those apples call- ing out to you, "Don't eat us, we're not ripe yet! " And when you felt them with your fingers, they were hard to the touch ; and this hardness said to you, " Don't eat us, we're not ripe yet!" But all the same, you ate them ; and the sour taste which puckered up your mouth said to you, " Stop eat- ing us, we're not ripe yet ! " But you did not pay any attention to their warnings ; and, though they spared no pains, those apples were not able to save their baby seeds from being wasted by your greediness. 30 But there was still one thing they could do to prevent your eating many more green apples, and wasting more half-ripe seeds. They could punish you so severely for having disobeyed their warnings, that you would not be likely very soon to do the same thing again. And this is just what they did. When feeling so ill and unhappy that summer night from all the unripe fruit you had been eating, perhaps you hardly realized that those apples were crying out to you, — " You would not listen to us, and so we are punishing you by making you ill and uncomfortable. When you saw how green we were, we were begging you not to eat us till our young seeds were ripe. When you felt how hard we were, we were trying to make you under- stand that we w T ere not ready for you yet.. And, now that you have eaten us in spite of all that we did to save ourselves and our seeds, we are going to make you just as unhappy as we know how.. Perhaps next time you will pay some heed to our warnings, and will leave us alone till we are ready to let our young ones go out into the world." So after this when I show you an apple, and ask you what you know about it, I fancy you will have quite a story to tell, — a story that begins with one May day in the orchard, when a bee went flower visiting, and ends with the little brown seeds which you let fall upon the ground, when you had finished eating the rosy cheeks and juicy pulp of the apple seed case. And the apple's story is also the story of many other fruits. SOME COUSINS OF THE APPLE THE pear (Fig. 13)/' is a near cousin of the apple. But perhaps you did not know that plants and trees had cousins. As you learn more and more about them, you will begin to feel that in many ways plants are very much like people. Both the pear and the apple belong to the Rose family. They are cousins to all the garden roses, as well as to the lovely wild rose that you meet so often in summer along the roadside. We know some families where the girls and boys look so much alike that we could guess they were brothers and sisters, even if we did not know that they all lived in the one house and had the one family name. If we look carefully at the plants we meet, at their leaves and flowers and fruits, and even at their stems and roots, often we may guess rightly which ones belong to the same family. 31 Fig. 13 32 If we place side by side an apple blossom and a pear blossom, we see that they are very like each other. Both have the green outside cup which above is cut into five little green leaves. Both have five white or pinkish flower leaves. Both have a good many pins with dust boxes, and from two to five of those pins without dust boxes. If we place side by side a pear and an apple, we see in both cases that it is the green cup, grown big and juicy and ripe, which forms the delicious fruit. If we cut these two fruits open lengthwise, we can see just how the pins without dust boxes are set into the green cup ; and we can see that the lower, united part of these pins makes a little box which holds the seeds. In the picture (Fig. 14) the shading shows you where this seedbox ends, and the green cup, or what once was the green cup, begins. This is rather hard to understand, I know ; but your teacher can make it clear to you with a real pear. So it ought to surprise you no longer to learn that the apple and the pear are cousins. Now, I want you to look at the picture at the head of this chapter. This is the wild rose, the flower from which the great Rose family takes its name. This rose is a much larger flower than either the apple or the pear blossom. Its flower leaves are deep pink. These bright flower leaves make gay handker- Fig. 14 33 Fig. 15 chiefs for signaling when the rose plant wishes to attract the attention of the bees. But there are five of them, just as there are in the apple and the pear blossom ; and there are the pins with dust boxes, — so many of them, in the rose, that it would take some time to count them all. And in the center are the pins which have seedboxes below ; for these pins in the rose are quite separate one from another, and each one has its own little seedbox. So, though different in some ways, in others the flower of the rose is very much like those of the apple and the pear. In this picture (Fig. 15) you see its fruit. This is called the "rose hip." When ripe, it turns bright red. In late summer you see the rosebushes covered with these pretty hips. At times this fruit does not look altogether unlike a tiny apple or pear; but if we cut it open lengthwise, we see that its inside arrangements are quite different. The lower parts of the pins without dust boxes do not grow into one piece with the green cup (now the red cup), as in the apple and the pear. Instead, this cup (Fig. 16) is hollow. To its inner sides are fastened the little seed- boxes, as you will see if you look carefully at the picture. This hollow case with its separate seedboxes shows you that the rose plant is not so closely related to the pear and the apple trees as these trees are to each other Fig. 16 DANA S PLANTS. 34 UNEATABLE FRUITS PERHAPS one day you bit into the fruit of the rose, and found it sour and unpleasant to the taste. You may have forgotten that not long ago you learned a new meaning for the word " fruit." Possibly you still fancy that a fruit must be something good to eat. So many people have this idea, that once more I wish to make clear to you that the fruit is the seed-holding part of the plant. Whether this part is good to eat or not, makes no difference as to its being a fruit. The apple is a fruit, you remember, not be- cause it is good to eat, but because it holds the seeds of the apple tree. And for this same reason the pear is a fruit. It is the case in which is laid the seedbox of the pear tree. This case, when ripe, happens to be juicy and delicious ; but it would be quite as much a fruit if it were dry and hard, and without taste. And so the rose hip is a fruit, because it is the case which holds the little seedboxes of the rose flower. What is the fruit of the milkweed ? All country children know the milkweed plant, with its big bright leaves, and bunches of pink or red or 35 Fig. 17 purple flowers (Fig. 17). And you know the puff) pods that later split open, letting out a mass of brown, silky-tailed seeds. There ! I have given the answer to my own question ; for if the plant's fruit is the seed- holding part, then the milk- weed's fruit must be this pod stuffed full of beautiful, fairy- like seeds. Then you know the burdock (Fig. 18) which grows along the country road. But perhaps you do not know that fruit of this is the prickly >urr which hooks itself to your clothes on your way to school. This burr (Fig. 19) is the case which holds the little seeds of the burdock, and so it must ...^ be its fruit. The fruit of the dandelion is the silvery puffball (Fig. 20) or " clock," by blowing at which you try to tell the time of day. If you pull off one of the feathery objects which go to make up the puffball, at its lower end you see a little dandelion seedbox (Fig. 21). And these fall days, along the roadsides and in the Fig. i; Fig. 20 Fig. 21 36 woods, everywhere you see fruits which you will hardly know as such unless you keep in mind the true meaning of the word. Many of these lam sure you would not care to eat. The burr from the burdock would not make a pleasant mouthful. Neither would you like to breakfast on a milkweed pod. And a quantity of dandelion puffballs would hardly add to the enjoyment of your supper. If you should tell your mother you had brought her some fruit, and should show her a basket of burrs and pods, she would think you were only joking, and per- haps a little foolish ; and I dare say she would be greatly surprised to find you were using the word quite rightly. MORE COUSINS OF THE APPLE Fig. 22 THE apple has three cousins, all of whom are very much alike. These cousins are the cherry, the plum, and the peach (Figs. 22, 23, 24). All three be- long to the Rose family. Have you ever noticed the great family likeness between these three fruits ? Look at them in the pictures. To be sure, they are of different sizes, but they are almost alike in shape. 37 Fig. 23 Fig. 24 And if you should cut them open lengthwise, right through the stony center, all three would look much like the next picture, which is taken from a peach (Fig. 25). All these fruits have the soft outer part which you find so pleasant to the taste. Within this, in all of them, is a hard object, which we call the stone or pit ; and inside this stone or pit, in each case, lies the seed. These next pictures show you two views of the flower of the cherry (Figs. 26, 27). Here you see a likeness to other mem- bers of the Rose family, to the blossoms of the apple and the pear. You see that the green cup is cut into five little leaves (in the picture these are turned back and down- ward). You see also the five white flower leaves, and ever so many of the pins with dust boxes. But you find only one of those pins without dust boxes ; and this, as you now seedbox below, is all right. The cherry blossom has but one of these pins, and the flowers of the peach and of the plum have only one. Fig. 27 Fig. 2: know, has a Well, that 38 Figure 28 shows you a cherry blossom cut open. Here you see plainly the single pin with a seedbox. This seedbox with its case is what grows into the cherry. The white flower leaves, and the pins with dust boxes, fall away. In the cherry flower the green cup also disappears, instead of making the best part of the fruit, as it does with the apple and the pear. And the upper part of the seedbox pin withers off ; but the seedbox below grows juicy and ripe and red, at least its outer case does. By the end of June you take out the long ladder and place it against the cherry tree. Seating yourself on one of its upper rungs, you swallow the outside of the shining little ball we call the cherry, letting the stony seedbox inside drop down upon the ground, where all ripe seeds belong. The story of the plum and of the peach is almost the same as the story of the cherry. If you understand how the single seedbox of the cherry blossom turns into the cherry fruit, then you understand how the same thing happens with the single seedboxes of the plum and the peach blossom. You know that in the flowers of the pear and the apple there were several of these pins without dust boxes ; and although these were joined below into a single seedbox, this had separate compartments for the many seeds. But the single seedboxes of the cherry, the plum, and the peach, have but one hollow. Usually in this hollow we find only one seed. So you see that these three fruits make a little group by themselves because of their great likeness to one another. 39 STILL MORE COUSINS HERRI ES and plums we find growing wild in the woods and fields. While in many ways the wild trees are unlike those we grow in our orchards, yet, if you look closely at their flowers and fruits, you will find they answer generally to the Fig. 29 descriptions you have been reading. Early in May, when the orchard is still gray and dreary, suddenly we notice that the upper branches of the cherry tree look as though a light snow had fallen. It seems as if the lovely blossoms had burst forth in an hour. One's heart gives a joyful jump. Summer is really coming. The flowers of May promise the fruit of June. But when we find the blossoms of the wild cherry, it is several weeks later. Some of the little wood flowers have already come and gone. The trees are thick with leaves before we discover the fragrance of its slender, drooping clusters; for, though in other ways these blossoms are almost exactly like those of the cultivated cherry, they are much smaller, and grow differently on the branches. This same difference in size and manner of growing you will find between the wild and the cultivated fruits. You country children know well the little chokecherries (Fig. 29) that are so pretty and so plentiful along the 40 lanes. These hang in bunches that remind you some- what of the clusters of the currant. They are much smaller than the market cherry ; yet if you cut one through, you will see that in make-up it is almost ex- actly like its big sister. Those of you who live near the sea find wild beach plums (Fig. 30) growing thickly along the sand hills. These are hardly larger than good-sized grapes; yet if you cut them open, you see that they are really plums. In our woods and fields we do not find any wild peaches. The peach was brought to us from far-away Persia. Only in the garden and orchard do we meet its beautiful pink blossoms. To see these growing naturally we must go to their Persian home. So, while we remember that the cherry, the plum, and the peach belong to one little group because of their likeness to one another, let us not forget that the peach is one of the foreign members of the Rose family. Fig. 4i IN THE WOODS WHAT do you say this morning to going to the woods rather than to either garden or orchard ? Not that I am ready to take back anything I said at the beginning of this book about the delights of the orchard as a playground. For actual play I know of no better place. An apple tree is as good a horse as it is a house, as good a ship as it is a mountain. Other trees may be taller, finer to look at, more exciting to climb; but they do not know how to fit themselves to the need of the moment as does an apple tree. But for anything besides play, the woods, the real woods, are even better than the orchard. The truth is, in the woods you have such a good time just living, that you hardly need to play; at least you do if you are made in the right way. So now we are off for the woods. We have only to cross a field and climb a fence, and we are in the lane which leads where we wish to go. Through the trees comes a golden light. This is made partly by the sunshine, but mostly by the leaves turned yellow. These yellow leaves mean that summer is over. It is in summer, when we are having our vacation, that the leaves work hardest; for leaves have work to do, as we shall learn later. But now they are taking a rest, and wearing their holiday colors. Twisting in and out over the rails of the fence are clusters of berries which are very beautiful when you look at them closely. Each berry is an orange-colored 42 Fig. 31 case which opens so as to show a scarlet seedbox within (Fig. 31). A little earlier in the year you could not see this bright-colored seedbox. It is only a short time since the outer case opened and displayed its contents. These are the berries of the bittersweet. Last June you would hardly have noticed its little greenish flowers, and would have been surprised to learn that they could change into such gay fruit. Do you see a shrub close by covered with berries? These berries are dark blue. They grow on bright-red stalks. If we wait here long enough, it is likely that we shall see the birds alight upon some uppt twig and make their dinner on tr dogwood berries; for this is one of the Dogwood family, — the red-stalked dog- wood, we call it (Fig. 32). When its ber- ries turn a very dark blue, then the birds know they are ready to be eaten, just as we know the same thing by the rosy cheeks of the apple. You can be pretty sure that any fruit so gayly colored as to make us look at it twice, is trying to persuade some one — some boy or girl, or bird, or perhaps even some bear — to come and eat it. Fig. 32 43 You have not forgotten, I hope, why these fruits are so anxious to be eaten ? You remember that when their seeds become ripe, and ready to make new plants, then they put on bright colors that say for them, "Come and eat us, for our little seeds want to get out of their prison ! " Once upon a time these seeds did not find their cozy seed cases a prison. So once upon a time the baby robins were content to stay safe in their nest. And once upon a time all the playground you needed was a little corner behind your mother's chair. But seeds, like birds and babies, outgrow their surroundings, and need more room. Here is a tall shrub with bright-colored leaves, and clusters of dark red fruit that grow high above our heads (Fig. 33). It looks something like certain mate- rials used in fancywork. This shrub is called the sumac ; and if you pick and pull apart one of its fruit clusters, you find that it is made up of a quantity of seeds that are covered with little red hairs. There is nothing soft and juicy about the fruit of the sumac. Whether it is ever used as food by the birds, I do not know. I wish some child would make it his business to find out about this. Some of you are sure to live near a clump of sumacs. By watching them closely for a few weeks, you ought to discover if any birds feed upon their fruit. If you do make any such discovery, I hope you will write a letter telling me of it ; and then, if another edition of this book is published, I shall be able to tell other chil- 44 dren more about the fruit of the sumac than I can tell you to-day. There are many interesting things about plants yet to be found out ; and you children will find it far pleasanter to make your own discoveries, using your own bright eyes, than to read about the discoveries of other people. Every field, each bit of woods, the road we know so well leading from home to the schoolhouse, and even the city squares and parks, are full of interesting things that as yet we have never seen, even though we may have been over the ground a hundred times before. Now let us leave the lane, and strike into the woods in search of new fruits. This morning we will look especially for those fruits which by their bright colors and pleasant looks seem to be calling out to whomsoever it may concern, "Come and eat us!" Close at hand is one of our prettiest plants. Its leaves look as though they were trying to be in the height of the fall fashion, and to outdo even the trees in brightness of color. These leaves are set in circles about the slim stem. From the top of this grow some pur- ple berries (Fig. 34). This plant is the Indian cucumber root. If one of you boys will dig it up with your knife, you will find that a little like a cucumber. Though I have never made the experiment myself, I am told Fig. 34 its root is shaped 45 that it tastes something like the cucumber. It is possi- ble, that, as its name suggests, it was used as food by the Indians. To hunt up the beginnings of plant names is often amusing. So many of these are Indian, that in our rambles through the woods we are constantly re- minded of the days when the red man was finding his chief support in their plants and animals. In June we find the flower of the Indian cucumber root. This is a little yellowish blossom, one of the Lily family. Small though it is, for one who knows some- thing of botany it is easy to recognize it as a lily. Indeed, the look of the plant suggests the wood and meadow lilies. This is partly because of the way in which the leaves grow about its stem, much as they do in these other lilies. Now look at the beautiful carpet which is spread beneath your feet. Here you will wish to step very lightly ; for otherwise you might crush some of those bright red berries which are set thickly among the little white-veined leaves. These are called " partridge berries," — a name given them because they are eaten by partridges. But the bare winter woods offer few tempting morsels for bird meals ; and it seems likely that the nuthatch and snow- bird, the chickadee and winter wren, hail with delight these bright berries, and share with the partridges the welcome feast. Please look closely at one of the berries in Fig. 35, and tell me whether you see anything unusual. "There are two little holes on top." Yes, that is just what I hoped you would notice. I 4 6 do not know of any other berries in which you could find these two little holes ; and as I do not believe it would be possible for you to guess what made these holes, I will tell you about them. The flowers of the partridge vine always grow in twos. The seedboxes of these two flowers are joined in one. So when the flowers fade away, only the one seedbox is left. When this ripens, it becomes the partridge berry ; and the two little holes show where the two flowers were fastened to the seedbox. Try not to forget this, and early next July be sure to go to the woods and look for the little sister flowers. Perhaps their delicious fragrance will help you in your hunt for their hiding place. Then see for yourselves how the two blossoms have but one seedbox between them (Fig. 35). 47 i lis Fig. 36 Now, we must take care not to wet our feet, for the ground is getting damp. We are coming to that lovely spot where the brook winds beneath the hemlocks after making its leap down the rocks. What is that flaming red spot against the gray rock yonder ? As we draw nearer, we see that a quantity of scarlet berries are closely packed upon a thick stalk (Fig. 36). Do you know the name of the plant which owns this flaming fruit ? If you were in these woods last May, at every turn you met one of those quaint little fellows we call " Jack-in-the-pulpit." Jack himself, you remember, was hidden almost out of sight by his "pulpit." This pulpit was made of a leaf striped green or purple, or both ; and this leaf curled about and above Jack (Fig. 37). After a time the pretty leaf pulpit faded away, and Jack was left standing all alone. The lower part of Jack is covered with tiny flowers. After these had been properly dusted by the little flies (for flies, not bees, visit Jack), just as the apple blossom began to change into the apple, so these tiny flowers began to turn into bright berries. While this was happening, Jack's upper part began to wither away ; and at last all of it that was left was the queer little tail which you see at the top of the bunch of berries. It is said that the Indians boiled these berries, and then thought them very good to eat. Fig. 37 4 8 Fig. 38 If we were lost in the woods, and obliged to live upon the plants about us, I dare say we should eat, and perhaps enjoy eating, many things which now seem quite impossible ; but until this happens I advise you not to ex- periment with strange leaves and roots and ber- ries. Every little while one reads of the death of some child as the re- sult of eating a poisonous plant. The next picture (Fig. 38) shows you the fruit of Solomon's seal. These dark-blue berries hang from beneath the leafy stem, just as the little flowers hung their yellow heads last May. Next come the speckled red berries of the false Solo- mon's seal (Fig. 39), a big cousin of the smaller plant. As you see, this bears its fruit quite differently, all in a cluster at the upper part of the stem. These two plants seem to be great chums, constantly grow- ing side by side. We have been so busy and so happy that the morning has flown, and now we must be finding our . Fig. 39 way home to dinner ; for, unlike the birds, we are not satisfied to dine on berries alone. At almost every step we long to stop and look at some new plant in fruit ; for, now that we have learned 49 Fig. 40 how to look for them, berries of different sorts seem thick on every side. Low at our feet are the red ones of the wintergreen (Fig. 40). On taller plants grow the odd white ones, with blackish spots, of the white baneberry (Fig. 41), or the red ones of the red baneberry. Still higher glisten the dark, glass-like clusters of the spikenard Along the lane are glowing barberries (Fig. 42) and thorns bright with their " haws " (for the fruit of the thorn is called a "haw"). These look something like little apples. Here, too, is the black alder, studded with its red, waxy beads. But we must hurry on, not stopping by the way. And you can be sure that those birds we hear chirrup- ing above us are glad enough to be left to finish their dinner in peace. Fig. 42 DANA S PLANTS. 50 WHY SEEDS TRAVEL AT last I think we all understand that by the red of the apple, the purple of the plum, and the dif- ferent colors worn by the berries we find in the woods, these plants are inviting us, and the birds also, to eat their fruit, and so release from prison their little seeds. But what would happen, do you suppose, if no one should accept this invitation ? What would become of their seeds if these pears and apples and berries were not eaten by boys and girls and birds ? Most of this question you can answer for yourselves. If you leave the apple on the tree, after a time it falls off upon the ground ; and unless picked up, there it lies till it decays. In the orchard every fall you see apples decaying on the ground. In a little while the fleshy part disappears, and the little seeds are thus let out of prison without help. But many plants are not satisfied to leave their seeds so near home. Why is this, do you suppose ? Well, this is quite a long story. All plants of the same kind need just the same sort of food. If too many apple trees grow together, they soon use up all the apple-tree food in the neighborhood. So if a seed is to grow into a strong, hearty, well-fed plant, it ought to begin life in some place not already full of plants in search of just the food that it needs for itself. If a plant or tree makes its fruit so good to eat that some boy or girl or bird is likely to pick it, the chances 5i are that it will be carried at least a short distance before its seeds are dropped upon the ground. Once in a while a plant is rewarded for its pains by having its young carried thousands of miles. Think how far from its home the peach has traveled. As I told you before, it comes to us from Persia. Now, if the Persian peach tree had not made its fruit very juicy and delicious, it is not likely that any one would have taken the trouble to bring its seeds way over here to us. But this peach being what it is, one of the most deli- cious of fruits, the tree was rewarded for its pains by having its children taken where they were petted, and made much of, and had things all their own way ; for no other peach trees were on hand to do their best to crowd them out. Then think of the little partridge berry. The fleshy part of this the birds eat and digest. But the little seeds pass unharmed from the bird's stomach to the earth, sometimes many miles from the woods where they were born. What is true of the peach and of the partridge berry is true of many other fruits. Without the help of man or bird or beast, these little seeds could at last get out of their seed cases; but without such help, often they could not get the start in life they need. So it would seem as if a fruit's bright color and de- licious flavor were saying to us not only, " Come and eat us and set our seeds free," but also, "and carry us far away, so that we may have a fair chance in the world." 52 SOME LITTLE TRAMPS Fig. 43 WHEN I came home from that walk in the woods the other day, it took me some time to rid my clothes of many odd-looking little things, such as you see in the picture above (Fig. 43). This round burr (Fig. 44) was one of the worst of my hangers-on. You know it quite well. It is the fruit of the burdock. Can some child tell me why I call this prickly burr a fruit ? Now let us look carefully at this seed case or f ruit of the burdock. Instead of being smooth to the touch, like some other fruits we know, such as the apple and the pear, it is covered with stiff hooks. By these hooks it fastened itself so firmly to my clothes, that it was diffi- cult to pull it off without making a tear. Why does the burdock put its seeds into such a prickly case ? Please stop reading for a moment and try to answer this question. Cudgel well your brains for the use of such a prickly seed case as that of the burdock plant. 53 Now I am hoping that one of you children will be able to think out some such answer as this : — " Of course, the burdock plant doesn't want its seeds to fall on the piece of ground that has been used up already by other burdocks, any more than the partridge vine wishes to drop its seeds in the same little hollow where other partridge vines have eaten all the good food. As this burdock plant cannot make its seed case so bright and pretty, and good to eat, that the birds will carry it off, it must manage in some other way to send its seeds on their travels. And this is what it does : it covers the seed case with little hooks. When the seeds inside are quite ripe, this case breaks off very easily. So when the children come hunting berries, it hooks itself to their clothes, or else it catches in the hair of their dogs, or takes hold of the wool of grazing sheep, and gets carried quite a way before it is picked or rubbed off. When that happens, it is far enough from its old home to set up for itself." I should indeed be pleased if one of you children could give me some such answer as that. So you see this prickly seed case does just as much for its little charges as the juicy apple and velvety peach do for theirs. And the same thing is true of all those other hooked, or barbed, or prickly little objects that I picked off my clothes the other day, and that cling to you when you take a walk in the fall woods. They are all fruits. They are the ripe seed cases of the different plants. But they are dull-looking, and often quite vexing, 54 instead of being pleasant to the sight and taste and touch. This makes no difference, however, in their having things pretty much their own way. We do not in the least want to carry abroad these little torments, scatter- ing far and wide their seeds, so that another year there will be more burrs and barbs and bristles than ever, to tear our clothes and worry our/dogs; but they force us to do them this service, whether we will or no, and never stop to say " By your leave." At every turn they are waiting for us. Where we climb the fence, and cross the fields, and break through the woods, we can almost fancy that we hear them whispering together, "Here they come! Now is our chance ! " They remind us of those lazy tramps that lie along the railway, getting on the trucks of passing trains, and stealing rides across the country. These ugly hooked fruits have one great advantage over the pretty ones that are good to eat. They do not have to wait our pleasure. But when we are most busy and hurried, without a moment to loiter in the apple orchard or among the berry bushes, then, quite as well as, if not better than, during our leisure moments, they lay hold upon us with their tiny claws, and cling closely till we set to work to get rid of them. When we pick them off and fling them to the ground, we are doing just what they most wish. Fig. 45 I n this picture (Fig. 45) you see the seed case of the tick trefoil. This plant belongs to the Pea family ; and its fruit is really a pod, something like that of the 55 garden pea. But when this pod of the tick trefoil is ripe, it splits into five little pieces. Each piece is a separate seed case. This is covered with hooked hairs, by means of which it fastens itself to our clothing and to the hair of animals, just as the burr of the burdock did. These little seed cases go by the name of "ticks." Here is the fruit of the stick-tight (Fig. 46). You see its two teeth that are so well fitted to weave themselves into either cloth or hair. Fig. 47 shows you a strange and terrible fruit of this same class. It grows on an African plant, and may fasten itself so firmly into the hair of animals, that the attempt to get it out is almost hope- less. Sometimes an unfortu- nate lion will kill himself in his efforts to wrench this tormenting seed case from ' his skin. In his struggles he gets it into his mouth, and so dies. I am glad to say we have nothing so terrifying as this among our hooked fruits. Even if at times you are tempted to lose your patience with such impertinent little tramps as they are, I think you can hardly help admiring the clever way in which they manage to get a free ride. M'/t o SEED SAILBOATS N your way to school these fall days, often you notice certain white, silky things floating lazily through the air. Sometimes you catch one of these little objects, and blow it away again with a message to a friend. Or per- haps you wish upon it. At least, this is what I did as a child. Life in those days was full of these mysterious "wishes." A white horse, a hay cart, the first star, a wandering thistle down, — each promised the possible granting of one's most secret wish. That the thistle down comes from the thistle plant, you know. But not all the silky things that look like fairy sailboats are thistle down, for many plants beside the thistle let loose these tiny air ships. Have you ever wondered where they come from, what they are doing ? Or do they seem to you so lazy, so drifting, so aimless, that you doubt if they are going anywhere in particular, or have really anything to do ? But by this time you have learned that plants have better reasons for their actions than you had dreamed before you began to pay them some attention. You 56 57 have discovered that they dress their flowers in gay colors so that the bees may be tempted to visit them and pow- der them with golden dust. You have learned that they make their fruits juicy and delicious so that boys and girls and birds may be persuaded to carry off their seeds ; and the better you know them, the more certain you feel that they manage their affairs with much common sense, that they are not likely to take time and trouble for nothing. So let us look closely at some of these air ships, and try to guess their errand. I hope that some time ago you were told to get together as many different kinds as you could find, and to bring them /^ vMp(l! m\\rk^- nere tnis morning. In this picture you see some of the air ships of the milkweed (Fig. 49> The lower part of Fig. 48 is a seed- box of the milkweed. To this are fastened the silky threads which make the sail that carries the seed through the air with the least wind, just as the canvas sail carries the boat across the water. Can you think of some other plants that send abroad seed sailboats ? Perhaps some of you remember the beauti- ful pink or purple flowers which grew last summer in tall spikes along the road and up the moun- i Fig. 49 58 tain side. These were borne upon a plant called some- times nreweed and again willow herb (Fig. 50). The first name was given to it because it grows freely in places that have been laid waste by fire. The latter one it owes to its leaves, which look somewhat like those of the willow. By the end of August most of these beautiful blossoms had disappeared, leaving in their place the fruit. This fruit of the nreweed or willow herb is a long pod such as you see in the picture ( Fig. 5 1 ). This pod is packed full of seeds, to each one of which is fastened a silky sail. Finally all these pods split open, letting out their little *^— air ships (Fig. 52), and giving a beautiful, feathery look Fig. 51 A Fig. 50 to the great patches which they are found. Another plant m which fft* a u n c h e s C-1 E&v Yj the cL ^! ) tis. In Fig. 52 air ships is clema- Au- g u s t its pretty white blossoms Fig. 53 Fig. 54 clamber over the stone wall, and twist about the bushes 59 and trees, making the lanes very lovely. In the fall this climber is almost as pretty as in summer, for its fruit clusters (Fig. 53) are made of such long-tailed seeds as you see in Fig. 54. When these open, and float away with the first light wind, you can see how well their little sails are fitted to catch the breeze. In October and Novem- ber nearly every roadside is lined with clusters such as you see in the next pic- ture, except that the picture cannot give their soft, velvety look. These are the fruit clusters of the golden-rod (Fig. 55), made up of quantities of silky-tailed seeds such as you see above (Fig. 56). And this is the fruit cluster of the aster (Fig. 57). Each little puffball is composed of many aster seeds (Fig. 58). The pasture thistle is almost as beautiful in fruit as in flower. It swells up into a great silvery cushion, which finally vanishes in a cloud of floating thistle down. Fig. 56 FlG - 55 Fig. 57 Fig. 58 6o And here is the fruit cluster of the dandelion (Fig. 59), and also a single seed sailboat (Fig. 60). Hundreds of other plants attach these ittle sails to their seeds. You can hardly walk a step in the fall along the country roads without meeting these masses of feathery fruit made up of just such seeds. So now we come back to our questions, "Where are they are they doing ? " have learned why the apple tridge vine pack their cases, and why the bur- tight cover theirs with vou ought to answer these questions very easily. You found that those plants wished to send their little seeds abroad, so that they might get a better foothold in some piece of earth that was not used already by plants hungry for the very food that they most needed. This is just what the thistle and milkweed and dande- lion and aster want for their seeds ; and this is why they fasten them to little sails, and send them far away on a voyage of discovery. going t And tree ai.d the par- seeds in prettv dock and the stick hooks and bristles Fig. 60 bi WINGED SEEDS Eig. 62 ANY of the trees also send their seeds on air voyages, in the hope of finding some piece of land that will give them a chance to Pig. 61 grow into new, strong trees. The seeds of the willow (Fig. 62) have silky white sails such as we have found already in the plants of the milk- weed and willow herb ; and the cotton- wood tree is so called because its tufted seeds remind one of the famous cotton seeds from which we get our cotton thread (Fig. 63). There are other trees which use wings instead of sails when they send their seeds flying through the air. Here you have the winged fruits of the maple (Fig. 64). In summer you see these winged fruits hanging in clus- ters from the trees; and later in the year they are thickly scattered along the village street and in the city squares. You can understand FlG - 6 4 how easily the maple seeds inside these cases would be carried upon the breeze by their wings. ¥1 Fig. 63 Fig. 65 62 Each seed of the elm tree is winged nearly all the way round. The picture (Fig. 65) shows you a cluster of these as they look upon the tree. Here is a bunch of the long- winged seeds of the ash (Fig. 66). Next comes a fruit cluster from the hop hornbeam (Fig. a single Fig. 68 Fig. 66 67), and above is fruit (Fig. 68). The seeds of the pine tree are hidden away in the pine cone (Fig. 69) you know so well, and those of the hem- lock in the hemlock cone (Fig. 61). When they are quite ripe, they break away from these cones. In so doing, each one carries with it a little piece of the cone, which acts as a wing- to the seed (Fig. 70). Nearly all of these seeds you can find for yourselves when you wander about the country. Indeed, if you have eyes that are good for any- thing, many of them you can- not help seeing. It is all very well to read about these Fig. 67 plants and trees, and to look Fig. 69 Fig. 70 63 at pictures of their flowers and fruits, and to have your teacher bring into the schoolroom specimens for examination. If this is all the city children can do (although even in the city one can do more than this), why, surely it is far better than nothing. But best of all is it to go right into the woods and fields where these strange, interesting creatures are living, and to see for yourselves their manners and customs. SHOOTING SEEDS OWN by the brook and along the sides of the mountain grows a tall shrub which is called the witch-hazel. I hope some of you know it by sight. I am sure that many of you/ know its name on account of the extract which is applied so often to bruises and burns. This picture (Fig. 71) shows you a witch-hazel branch bearing both flowers and fruit ; for, unlike any other plant I know, the flower of the witch-hazel appears late in the fall, when its little nuts are almost ripe. These nuts come from the flowers of the previous year. It is always to me a fresh surprise and delight to 6 4 come upon these golden blossoms when wandering through the fall woods. Often the shrub has lost all its leaves before these appear. You almost feel as if the yellow flowers had made a mistake, and had come out six months ahead of time, fancying it to be April instead of October. In each little cluster grow several blossoms, with flower leaves so long and narrow that they look like waving yellow ribbons. But to-day we wish chiefly to notice the fruit or nut of the witch-hazel. Now, the question is, how does the witch-hazel man- age to send the seeds which lie inside this nut out into the world ? I think you will be surprised to learn just how it does this. If you have a nut before you, you see for your- selves that this fruit is not bright-colored and juicy- looking, or apparently good to eat, and thus likely to tempt either boy or bird to carry it off; you see that it is not covered with hooks that can lay hold of your clothing, and so steal a ride ; and you see that it has no silky sails to float it through the air, nor any wings to carry it upon the wind. And so the witch-hazel, knowing that neither boy nor girl, nor bird nor beast nor wind, will come to the rescue of its little ones, is obliged to take matters into its own hands ; and this is what it does. It forces open the ripe nut with such violence, that its little black seeds are sent rattling off into the air, and do not fall to the ground till they have traveled some distance from home. Really they are shot out into the world (Fig. 72). 65 If you wish to make sure that this is actually so, gather some of these nuts, and take them home with you. It will not be long before they begin to pop open, and shoot out their little seeds. Did you ever hear of Thoreau ? He was a man who left his friends and family to live by himself in the woods he so dearly loved. Here he grew to know each bird and beast, each flower and tree, almost as if they were his brothers and sisters. One day he took home with him some of these nuts, and later he wrote about them in his journal, — " Heard in the night a snap- ping sound, and the fall of some small body on the floor from time to time. In the morning I found ^ FlG it was produced by the witch-hazel nuts on my desk springing open and casting their seeds quite across my chamber." Now, I do not want any of you children to go off by yourselves to live in the woods ; but I should like to think that you could learn to love these woods and their inmates with something of the love that Thoreau felt. And if you watch their ways with half the care that he did, some such love is sure to come. Although the witch-hazel's rough way of dealing with its young is not very common among the plants, we find much the same thing done by the wild gera- nium, or crane's bill, and by the touch-me-not. The wild geranium is the pretty purplish, or at times pink flower which blossoms along the roads and in the woods in May and early June. DANA'S PLANTS. — K 66 Fig. 73 Its seedbox has five divisions. In fruit this seedbox tapers above into a long beak, which gives the plant its name of " crane's bill." When the fruit is quite ripe, it splits away from the central part of this beak in five separate pieces, which spring upward so suddenly that the seeds are jerked out of the five cells, and flung upon the earth at a dis- tance of several feet. The picture (Fig. y$) shows you how this is done. But a little search through the summer woods will bring you to the plant itself ; and if you are patient, perhaps you will see how the wild geranium gets rid of its children. But though this habit may at first seem to you somewhat unmotherly, if you stop to think about it you will see that really the parent plant is doing its best for its little ones. If they should fall directly upon the ground beneath, their chances in life would be few. About plants, as about people, you must not make up your minds too quickly. Another plant that all of you country children ought to know, is the touch-me-not, or jewelweed. Sometimes this is called ''lady's eardrop," because its pretty, red- gold, jewel-like flowers remind us of the drops that once upon a time ladies wore in their ears. These flowers we find in summer in wet, woody places. In the fall the fruit appears. This fruit is a little pod (Fig. 74) which holds several seeds. When this pod is ripe, it bursts open and coils up with an Fig. 74 6; elastic spring which sends these seeds also far fror home (Fig. 75). ^ This performance of the touch-me-not you 6 ^ ? can easily see; for its name "touch-me-not" ^ comes from the fact that if you touch too roughly one of its well-grown pods, this will spring open and jerk out its seeds in the way I have just described. In Europe grows a curious plant called the " squirting cucumber " ( Fig. 76). Its fruit is a small cucumber, which becomes much inflated with water. When this is detached from its stalk, its contents are " squirted " out as if from a foun- tain, and the seeds are thus thrown to a distance of many feet. THE CHESTNUT AND OTHER SEEDS Fig. 75 branches till the open contents. But sometimes AT the head of this chapter you see the fruit of the chestnut tree (Fig. 77). What fine October days this pic- ture brings to mind, — clear, cold mornings when we arm ourselves with baskets and a club, and go chestnuting. Usually the boys climb the tree, and shake the burrs rattle out their a teasing cluster refuses 68 to set loose its treasure. Then the club comes into play. If it strikes the great burrs, and raps out their fat chestnuts, a shout of joy follows. What a delight it is to hunt in the long grass for the glossy brown beauties just after a sudden shower from above ! No one speaks. Ail are bent low in breath- less search. I know of nothing much more perfect in its way than an open chestnut burr, still holding its two or three fine nuts. Its green, prickly outer covering makes a fine contrast to the velvety brown lining ; and within this beautiful case the plump, shining nuts are laid with the daintiest care. Perhaps the chestnut burr is even safer as a seed case than the apple. While its seeds (the chestnuts) are young and unripe, it does not stop to plead, " Pray, don't destroy my baby nuts ! " but it seems to call out sternly, " Hands off!" and promptly punishes the boy or girl who disobeys this rough command. But when the chestnut seeds are quite ripe, then it opens as wide as it knows how ; and very tempting it looks as it unfolds its contents. A chestnut tree in October looks like one great invitation. The acorn (Fig. 78), the seed of the oak tree, is pretty enough as a plaything, but less pleasing than the chestnut. Only the squirrel seems to find it Fig. 78 The trees which hide their seeds in nutshells con- trive in different ways to send them abroad. Many of these nuts are hoarded as winter food by the squirrels. Often in a moment of fright these little 6 9 creatures drop them by the way. Again, they forget just where they deposited their hoard, or for some other reason they leave it untouched. Thus many nuts are scattered, and live to change into trees. Others may fall into the water, and float to distant shores. The cocoanut, for example, has been carried in this way for hundreds of miles. Its outer covering protects the seed from being soaked or hurt by water ; and when at last it is washed upon some distant shore, it sends up a tall cocoanut tree. 3**C SOME STRANGE STORIES WHEN I began to tell you children about the dif- ferent ways in which plants send their young out into the world, I had no idea that I should take so much time, and cover so many pages with the subject. And now I realize that I have not told you one half, or one quarter, of all there is to tell. You have learned that seeds are scattered abroad by animals that eat the bright cases in which they are packed, and by animals into whose hair or clothing they manage to fasten themselves. You know that sometimes seeds are blown through the air by means of silky sails to which they are fas- tened, or else by their little wings. You discovered that certain plants actually pushed their young from their cozy homes in no gentle fashion, much as a mother bird shoves her timid little ones from the edge of the nest. ;o Fig. 79 And in the last chapter you read that occasionally seeds were floated by water to distant shores. Now, these are the chief ways in which plants con- trive to dispose of their seeds ; but they are not the only ways. Before leaving the subject altogether, I will mention a few plants which use other contrivances. This picture (Fig. 79) shows you the fruit of the poppy. Many of you know it well. In the fall you find in the garden these pretty seedboxes. They answer famously as pepper pots, if one chances to be playing house in the orchard. Just below the top of the poppy seedbox the picture shows you a circle of little openings ; and inside the seedbox are many poppy seeds (Fig. 80). But how can seeds get out of these openings, do you suppose ? If they were lower down, it would be an easy matter for the seeds to drop out, right on the ground. But perhaps it is well that this cannot happen. Did such a quantity of seeds fall upon one small bit of earth, they would have a poor chance for life. Well, then, you ask, must they wait patiently in the seedbox till some child comes along and pulls it off for a pepper pot ? No, they are not obliged to wait always for you children. This is fortunate for the poppy plants that are so unlucky as to live in lonely gar- dens where no children ever play. Then what does happen ? If you will go out into the garden the next windy fall day, you will see for yourselves. You will see the 7i tall poppy plants swaying to and fro with every gust of wind ; and you will see how the seedboxes are tossed from side to side, and that every now and then a very violent toss sends the little seeds tumbling head over heels out of the little openings just as effectively as if the wind too were playing house and using them as pepper pots. When the seeds are let loose in this way, the tall poppy plants are swayed so far to one side, and the wind is blowing so hard, that they land upon the ground much farther from home than would have been the case had they fallen through openings cut in the lower part of the seedbox. In the East grows a strange plant called the " rose of Jericho." Its fruit is a pod. When this plant is nearly ready to get rid of its seeds, what do you think it does ? It lets go its hold upon the earth, curls itself up into a little ball, and is driven here and there by the wind. When it finds a nice damp place, it stops and uncurls itself ; and the little pods split open, and drop their seeds on the earth. Some plants bear fruits that look very much like insects. It is believed that sometimes these are taken for such, and snapped up by birds, and thus succeed in getting away from home. Fig. 8i This picture (Fig. 81) shows you a pod which, as it lies upon the ground, looks like a centiped. 72 Here you have a seed which is shaped and marked like a beetle (Fig. 82). The next picture (Fig. 83) shows you a seed from the castor-oil plant. You can see that it Fig. 82 might easily be mistaken for some insect. Think how disappointed the bird must be, * q after having greedily snapped up and carried off one of these little objects, to discover that for all his pains tlG _ g, he has secured nothing but a dry, tough pod or seed. But if the mother plant really does any thinking at all, cannot you fancy how she chuckles with delight over the trick she has played, and the clever way in which she has started her young on its travels ? There is still another way in which birds help to scatter seeds. They alight in wet places, covering their little feet with mud. Now, a clot of mud may contain many different seeds ; and for days this clot may stick to the bird's foot, and thus cause the seeds it holds to be carried for hundreds of miles. Have you ever heard of Darwin ? He was a great man who spent most of his life in studying plants and animals. How many years do you suppose he was interested in the study of those long, brown worms which you find in quantities in the lawn and after heavy rains along the sidewalk ? At intervals for forty-four years he studied these little creatures which you girls think ugly and uninteresting enough, although the boys know they make fine fish bait. Well, Darwin once raised eighty-two plants from seeds contained in a clot of earth which was clinging 73 to the leg of a partridge. So you can see that when a bird gets his feet wet, he may really be doing the world a service. And it is not likely that he takes cold himself. Now, I want you children to see how many different ways you can recall in which plants scatter abroad their little seeds ; and later I want you to go out into the garden, or into the woods, and see if you cannot dis- cover many of the seeds about which you have been reading. But better still it would be if you could find others of which I have told you nothing. I should like you to make a list of the different plants which you find in fruit, putting after each name a slight description of the way in which it gets rid of its seeds. This will not be a stupid task at all if you set your mind to it. It will give your walks a new pleasure, and it will bring to your school work something of the freshness and joy which belong to the woods. Part II — Young Plants >x*< HOW THE BABY PLANT LIVES WHEN these little seeds at last find a good resting place, what do you think happens to them ? They grow into new plants, of course. But how does this come about ? How does a seed turn into a plant ? I could hardly expect you to guess this, any more than I could have expected you to guess how the apple flower changes into the apple fruit. I will tell you a little about it ; and then I hope your teacher will show you real seeds and real plants, and prove to you that what I have said is really so. Of course, you believe already that I try to tell yen the exact truth about all these things. But people far wiser than I have been mistaken in what they thought was true ; and so it will be well for you to make sure, with your own eyes, that I am right in what I say. If you should cut in two the seed of that beau- tiful flower the garden peony, and should look at ' 4 it very closely through a good magnifying glass, you would find a tiny object such as you see in the half seed shown in this picture (Fig. 84). Both your eyes 75 7 6 and your glass need to be very good to show you that this little object is a baby peony plant. Fig. 85 gives the little plant as it would 'look if taken out of the seed. Every ripe seed holds a baby plant ; and to become a grown-up plant, it needs just what boy and girl babies need, — food and drink and air. But shut up so tight in its seed shell, how can it get these ? Well, in this peony seed its food is close at hand. It is packed away inside the seed, all about the little plant. In the picture (Fig. 84), everything except the little f j\ white spot, which shows the plant, is baby food, — \ / food that is all prepared to be eaten by a delicate V/ little plant, and that is suited to its needs just as IG " 5 milk is suited to the needs of your little sister or brother. The little leaves of the baby plant take in the food that is needed to make it grow fat and strong. Now, how does the baby plant get water to drink ? I have asked your teacher to soak over night some peas that have been dried for planting, and to bring to school to-day a handful of these, and also a handful which have not been soaked. She will pass these about, and you can see how different the soaked ones are from the others. Those that have not been in the water look dried and wrinkled and old, almost dead in fact; while those which have been soaked are nearly twice as large. They look fat, and fresh, and full of life. Now, what has happened to them ? Why, all night long they have been sucking in water through tiny openings in the seed shell ; and this 77 water has so refreshed them, and so filled the wrinkled coats and swelled them out, that they look almost ready to burst. So you see, do you not, how the water manages to get inside the seed so as to give the baby plant a drink ? Usually it is rather late in the year when seeds fall to the earth. During the winter the baby plant does not do any drinking ; for then the ground is frozen hard, and the water cannot reach it. But when the warm spring days come, the ice melts, and the ground is full of moisture. Then the seed swells with all the water it sucks in, and the baby plant drinks, drinks, drinks, all day long. You scarcely need ask how it keeps warm, this little plant. It is packed away so snugly in the seed shell, and the seed shell is so covered by the earth, and the earth much of the time is so tucked away beneath a blanket of snow, that usually there is no trouble at all about keeping warm. But how, then, does it get air? Well, of course, the air it gets would not keep alive a human baby. But a plant baby needs only a little air ; and usually enough to keep it in good condition makes its way down through the snow and earth to the tiny openings in the seed shell. To be sure, if the earth above is kept light and loose, the plant grows more quickly, for then the air reaches it with greater ease. So now you see how the little plant inside the peony seed gets the food and drink and air it needs for its growth. In the picture above (Fig. 86) you get a side view 7% of the baby plant of the morning-glory, its unripe seed being cut in two. As you look at it here, its queer shape reminds you of an eel. But if instead of cutting through the seed, you roll it carefully between your fingers, and manage to slip off its coat, and if then you take a pin and carefully pick away the whitish, jelly-like stuff which has been stored as baby food, you will find a tiny green object which through a magnify- ing glass looks like the next picture (Fig. Sy). The narrow piece pointing downward is the stem from which grows the root. Above this are two leaves. This baby plant is a very fascinating thing to look at. I never seem to tire of picking Ftp 87 7 apart a young seed for the sake of examining through a glass these delicate bright-green leaves. It seems so wonderful that the vine which twines far above our heads, covered with glorious flowers, should come from this green speck. As this morning-glory is a vine which lives at many of your doorsteps, I hope you will not fail to collect its seeds, and look at their baby plants. When these are very young, still surrounded by a quantity of baby food, you will not be able to make them out unless you carry them to your teacher and borrow her glass ; but when the seed is ripe, and the little plant has eaten away most of the surrounding food, it grows so big that you can see it quite plainly with your own eyes. 79 A SCHOOLROOM GARDEN [WANT you children to do a little gardening in the schoolroom. You will enjoy this, I am sure. When I was a child, I took great delight in the ex- periments that I am going to suggest to you ; and now that I am grown up, I find they please me even more than they did years ago. During the past week I have been doing this sort of gardening; and I have become so interested in the plant babies which I have helped into the world, that I have not been at all ready to stop playing with them, even for the sake of sitting down to tell you about them. To start my garden, I had first to get some seeds. So I put on my hat and went down to the little shop in the village, half of which is given up to tailor work, while the other half is devoted to flower raising. The gray-bearded florist tailor who runs this queer little place was greatly interested when he heard that I wanted the seeds so that I might tell you children something of their strange ways. " Seeds air mighty interestin' things," he said. "Be you young or be you old, there's nothin' sets you thinkin' like a seed." Perhaps the florist tailor had been fortunate in his friends ; for I have known both grown-up people and children who year after year could see the wonder of seed and baby plant, of flower and fruit, without once stopping to say, " What brings about these changes ? " 8o To " set thinking " some people would take an earth- quake or an avalanche ; but when this sort of thing is needed to start their brains working, the " thinking " is not likely to be good for much. But I hope that some of you will find plenty to think about in the seeds which your teacher is going to show you ; and I hope that these thoughts may be the begin- ning of an interest and curiosity that will last as long as you live. The seeds which I got that morning were those of the bean, squash, pea, and corn ; and your teacher has been good enough to get for you these same seeds, and she will show you how to do with them just what I have been doing this past week. First, I filled a pot with finely sifted earth, and planted the different seeds ; then I filled a glass with water, floated some cotton wool upon its surface, and in this wool laid some beans ; and then my garden planting was done. During the following days I kept the earth in the pot slightly moist. The cotton wool in the glass of water did this for itself. And how carefully I watched my two little gardens ! For three days the pot of earth kept its secret. Nothing happened there, so far as I could see. But the beans that were laid upon the cotton wool grew fat and big by the second day, just like those that your teacher soaked over night ; and by the third day their seed coats had ripped open a little way, just as your coat would rip open if it were tightly buttoned up and suddenly you grew very fat ; and out of the rip in the 8i seed coat peeped a tiny white thing, looking like the bill of a chick that is pecking its way out of the egg- shell which has become too small to hold it. Very quickly this little white tip grew longer. It curved over and bent downward, piercing its way through the cotton wool into the water. About this time the pot garden began to show signs of a disturbance. Here and there FlG - 88 I saw what looked like the top of a thick green hoop (Fig. 88). What had happened, do you think? Why, first this bean had sucked in from the damp earth so much water that it had grown too fat and big for the seed coat ; and it had torn this open, just like the other bean, pushing out its little white tip ; and this tip had bent down into the earth and taken a good hold there, lengthening into a real root, and sending out little root hairs that fastened it down still more firmly. But it was not satisfied to do all its growing below. Its upper part now straightened itself out, and started right up into the air. From a hoop it turned into a stem which lifted the bean clear above the earth (Fig. 89). This bean was no longer the round object we usually call by that name ; for its two halves had opened and spread outward, and from between these two halves grew a pair of young leaves. As these leaves grew larger, the two half-beans began to shrink, growing smaller and more withered all the time (Fig. 90). DANA'S PLANTS. — 6 S2 Turn Why was this, do you suppose ? To make clear the reason of this, to show just why the two halves of the bean grew smaller as the rest of the young bean plant grew larger, I must go back a way. to the picture of the peony seed (Fig. 84). There you can see how the baby plant is packed away in the midst of a quantity of baby food. And in the picture of the morn- ing-glory seed (Fig. 86) you see the same thing. You remember that day by day the baby plant ate more and more of this food, and kept growing stronger and bigger, and that all this time the store of food kept growing smaller and smaller. Now, if you cut open the bean, you do not see a tiny plant set in the midst of a store of food. Why is this ? This is because the baby bean plant keeps its food in its own leaves. The seed coat of the bean is filled by these leaves, for each half of the bean is really a seed leaf. In these two thick leaves is stored all the food that is necessary to the life of the baby plant ; and because of all this food which they hold, the bean plant is able to get a better start in life than many other young plants. If you soak and strip off its seed coat, and pull apart the two thick leaves, you will find a tiny pair of new leaves already started (Fig. 91); but you will see noth- ing: of the sort in the seed of the mornincc-HorY, for the Fig. 90 83 reason that this is not so well stored with baby food as to be able to do more than get its seed leaves well under way. The pea, like the bean, is so full of food, that it also is able to take care of a second pair of leaves. But now to go back to the young bean plant in the schoolroom garden. We were wonder- ing why the two halves of the bean, which are really the first pair of leaves, kept growing thinner and smaller as the second pair grew larger. to Fig. 91 Perhaps you guess now the reason for this. These first leaves, called the seed leaves, feed all the rest of the young bean plant. Of course, as they keep on doing this, they must themselves shrink away ; but they do not cease with their work till the plant is able to take care of itself. By this time, however, the seed leaves have nothing left to live upon. They die of starvation, and soon fade and disappear. So now you understand just what has happened to the leaves that once were so fat and large. And I hope you will remember the difference between the seed of the morning-glory and that of the bean, — how the morning-glory packs the baby food inside the seed, of course, but outside the baby plant; while the bean packs it inside the two seed leaves, which are so thick that there is no room for anything else within the seed coat. But really, to understand all that I have been telling you, you must see it for yourselves ; you must hold in 8 4 your hands the dried bean ; you must examine it, and make sure that its seed shell is filled entirely by the baby plant ; you must see it grow plump and big from the water which it has been drinking ; you must watch with sharp eyes for that first little rip in the seed coat, and for the putting-out of the tiny tip, which grows later into stem and root ; you must notice how the bent stem straightens out, and lifts the thick seed leaves up into the air ; and you must observe how that other pair of leaves, which grows from between the seed leaves, becomes larger and larger as the seed leaves grow smaller and thinner, and how, when the little plant is able to hold its own in the world, the seed leaves die away. And if day by day you follow this young life, with the real wish to discover its secret, you will begin to understand what the wise old florist tailor meant when he said, — " Be you young or be you old, there's nothin' sets yon thinkin' like a seed." 85 A SCHOOLROOM GARDEN {Concluded) THE picture at the top of this page (Fig. 92) shows you how the young squash plant comes into the world ; for you remember that in my pot garden I planted some squash seeds. And I hope that in your schoolroom garden you will watch this plant as it makes its first appearance. The baby food of the squash vine, like that of the bean, is stored away inside the seed leaves, which on this account are so large that they quite fill the seed shell. They are not so thick as those of the bean, but thick enough to hold all the nourishment that is needed to keep the young plant alive and hearty until it is big enough to shift for itself. Very soon after this seed is laid in warm, moist earth, its little plant begins to grow too large for the seed shell, and the white stem is pushed out through the hole you notice at one end of the seed. This stem 86 Fig. Fig. 95 forces its way into the earth below, and puts out a root, and root fingers. And now its upper part begins to lengthen out and to straighten itself. In doing this, it pulls the two seed leaves right out of the seed coat. If it fails at once to get rid of the seed coat, it lifts this up into the air, on top of its leaves. Often the young maple tree comes into the world in this way, carrying its seed coat on top of its seed leaves. The maple is another plant that packs its baby food within the seed leaves instead of round about them. Perhaps your teacher has saved for you some maple keys (Fig. 93), as the fruit of the maple tree is called. If you split open a maple key, you will find hidden within one of its halves (Fig. 94) the beautiful baby tree. This is folded away so neatly that one is tempted to split open one key after another, for the pleasure of unpacking other deli- cate baby maples (Fig. 95). But now let us find out what has happened to the peas which I planted. Peas seem to us so much like beans, that per- haps you think the young pea baby comes into the world in the same way as the bean plant ; but surely we have nothing here that looks at all like the bean plant. Fig. 94 87 We see some stems having small, thin, green leaves. Where are the fat seed leaves, filled with the baby food that keeps the plant alive ? They are not in sight, certainly, so we must start a hunt for them. If you will carefully remove the earth from about this little pea plant, you will soon find that the pea seed from which it is growing lies buried in the earth (Fig. 96). This pea seed, like that of the bean, is made up chief- ly of what really are two seed leaves, although in the case of the pea it may seem only as a matter of politeness that we give them the name of " leaves ; " for in the pea these seed leaves lie buried in the earth, and split open just enough to allow the little pea plant to grow up into the air. But like the seed leaves of the bean, they are fat and full of food, and care for the young plant just as devotedly as did those of the bean. When this young plant needs them no more, like those of the bean, they die of starvation. Within the acorn, the seed leaves of the great oak tree grow together. These lie quietly in the acorn shell while sending out supplies of food to the root and stem and leaves of the voung oak (Fig. 97). Walnut and chestnut leaves act much in the same manner. But these first leaves of the Fig. 97 walnut do not grow together, as you know. Each one is packed away separately in half of the walnut shell. The corn has but one seed leaf, which makes it unlike all the other plants about which we have been reading ; but it resem- bles the pea, the acorn, the walnut, and the chestnut in this, — that the one seed leaf lies buried in the earth, as do their two seed leaves. The baby corn plant is very small. It does not fill the whole seed shell, but gets its nourishment from the food by which it is surrounded. This picture shows you a seed or grain of corn cut in two (Fig. 98). Of course, this is much larger than life. In the center you see the tiny plant. All about is the baby food. The next picture (Fig. 99) shows you the young corn plant. I want you to remember that this is the only plant we have seen with but one seed leaf. This one seed leaf never comes out of the seed shell. There are other plants of the same kind. All the grass plants have but one seed leaf, and the blue flag that grows in wet meadows, and all the lilies. Only a few plants have more than two of these seed leaves. The pine trees are among these few. This picture (Fig. 100) shows you a baby pine tree, still cradled in its seed, surrounded by baby food ; and Fig. Fig. 100 8 9 the next one (Fig. 101) shows you the pine just starting out in the world, with its six seed leaves. When you study the botany that is written for older people, you will find that plants are set apart in separate groups, according to the number of their seed leaves. Strange though it may seem to you, plants with but one seed leaf have certain habits that you will not find in a plant with two seed leaves ; and a plant with two seed leaves, long after these have passed away, will show by root and stem that it had more than one seed leaf. In your schoolroom garden I should like you to grow side by side, first a plant with but one seed leaf, next a plant with two seed leaves, and lastly a plant with more than two. *oX*o~ — SEEDS AS FOOD I WANT you to think for yourselves why it is fortu- nate for us human beings that many plants store away in their seeds so much baby food. " Because without this the little plants would die, and we should have no new plants to make the world beauti- ful to live in," some child replies. That answer is a good one; but it is not just the answer that I wish. Can you think of any other way in which we all benefit by the large supply of baby food that is packed away in certain seeds ? If the right answer to this question does not occur to you, try to remember which of those seeds we have 9° been reading about have been supplied with a specially large amount~of this food. You remember that the bean holds so much baby food in its seed leaves, that these are very fat. So do the pea, the walnut, and the chestnut. The seed of corn, also, is well filled with baby food, only in the corn seed it is packed around the outside of the seed leaves, instead of the inside. But the squash, although it puts in its seed leaves enough food to keep its young plant well and hearty, does not lay by any great quantity of this material. Neither does the maple tree, which also stores the seed leaves with food, but does not fill them nearly so full as do the bean and the pea. And the morning-glory, which packs its precious white jelly (this is what the little morning-glory plant likes to eat) all about its young, lays up only just enough of this to last until the baby plant breaks out of ifs seed shell. Now, what difference do we find between these seeds ? — between the seeds of squash, morning-glory, and maple, which have only a small supply of baby food, and those other ones, such as bean and pea and corn and walnut and chestnut, which are packed full of nourishment ? ''Why, these last ones are good to eat! " you exclaim. " They are part of the food we live upon, while the squash seeds, the morning-glory seeds, and the maple seeds are not good to eat." Yes, that is the answer which I wished. The baby food in these seeds makes " grown-up " food for us. 9i We get strength and nourishment from the same mate- rial which the mother plant has prepared for her young. Now try to name the different seeds which help to make up our food. Already we have mentioned several kinds. Besides these, there is the oat seed (from which comes oatmeal), the wheat seed (from which comes flour for our bread), the coffee seed, the buckwheat seed, the peanut seed, the almond seed, and many others, some of which will come to your mind from time to time. I wish you would make for your teacher a list of all those that you can recall ; or, better still, I should like you to collect as many as you possibly can, and bring them to your next class. If you cannot find the seeds just as they grow upon the plant, you may be able to get them prepared for use. A pinch of flour, for in- stance, would answer for wheat seeds, of oatmeal for oat seeds. I have in mind a number of seeds that you can easily secure, of which I have not spoken ; and it will be in- teresting at our next meeting to see which child in this class is able to make the best exhibition of seed food. 3>^C AN IMPATIENT PLANT BABY PLANT babies are not alike as to the time they take in finding their way out of the ripe seed shell into the world. Certain seeds need only two or three days in which 9 2 to bring forth their young. Perhaps we ourselves have seen the white tip of the bean rip open its shell the second or third day after being laid upon the moist cotton wool. But if we had not given this bean plant a good chance to grow, it would have kept alive and hearty inside its shell for a long time. This is not the case with all plants. Certain seeds need to be planted soon after thoy are ripe. If they are not their baby plants die. But usually seeds take such good care of their young, that they will live for a long time, even if shut up in a dark closet or a table drawer, instead of being comfort- ably laid away in the warm, moist earth. Wonderful stories are told of seeds that have sprouted after having lain buried in some Egyptian tomb for thousands of years ; but the people best fitted to judge of the truth of such stories do not believe them. There is no doubt, however, that some seeds keep their baby plants alive for many years. Early in the summer the seeds of the red maple fall to the ground ; and soon after this the young plants find their way up into the world above. Later in the year the sugar maple sheds its seeds. These lie sleeping in the earth through the winter. When the warm spring days come, the baby plants awake, and stretch them- selves, and join the hundreds of other, just-awakened baby plants that are flocking into the world above. So you see that seeds of the same family have different habits in this matter. There is one curious tree that lives in swamps along the seashore of hot countries. It is called the mangrove. 93 80TAJNY LIBRARI Fig. 102 The baby plants of this tree are so anxious to get out into the world, that they do not wait until the seeds in which they are hidden are set free from the mangrove fruit. It is as if the little plants inside the apple seed could not wait until the apple flesh should be eaten or should decay, but insisted on struggling first out of the seed into the apple, and then through the apple into the light and air. This picture (Fig. 102) shows you the mangrove fruit. It looks more like a pear than an apple In the middle of this lies hidden one seed. As time goes on, this grows bigger and bigger, trying to make room for the impatient little plant within ; but it does not grow fast enough to please this ambitious /$^ young one, which finally ^r^ overcomes the difficulty by piercing the seed shell with its stem. This stem bores its way right down through the mangrove fruit, and breaks into the outer air. It keeps on growing in this way for many weeks, till at last it is a foot long (Fig. 103). Try to fancy how odd a mangrove tree must look at this time, covered with mangroves, from each one projecting this long odd-looking beak, which one could hardly guess to be the stem of the baby plant within the fruit. We read that these long-beaked fruits bob about with every breath of wind in a fashion that gives the tree a Fig. io- 94 still stranger look than on a day when the air is not stirring. Picture a pear tree from every pear of which the long stem of a baby pear tree protrudes. Would you not be eager to find one of these pears and cut it open, and see what sort of a baby plant it must be that could send out such a great stem ? But perhaps the strangest part of the story is yet to come. At last all of these great beaks fall away from the fruit ; and from the broken top of each grows a little bud, such as you see in the picture (Fig. 104). When this heavy beak falls upon the muddy ground below, its pointed end strikes first, and so bores into the earth. Fig 104 Even if it happens to fall into the water, it does this with so much force that it will pierce its way to the depth of eighteen or twenty inches, and yet remain standing erect when it strikes bottom, where it sends out a root. When it has secured a good hold, the little bud unfolds into four leaves. Above these grow larger, shining leaves ; and soon the ground beneath an old mangrove tree is covered with these daring little adventurers. ~o^ — A HUMPBACKED PLANT BABY NOW let us pause for a moment, and try to recall a little of what we have learned since school opened. We learned that the fruit of a plant is the part which holds its seed, and that there are many different kinds 95 of fruits ; that the burr of the burdock, the pod of the milkweed, the puff of the dandelion, are fruits, as well as the apple and the pear, the acorn and the walnut. We learned that the chief importance of these fruits lies in the fact just mentioned, that they hold the seeds of the plants. Then we learned something about the many different kinds of seeds, and of how these seeds managed to be- come separated from the parent plant, and to get a start in life. Next we read of the baby plant which lies hidden within every perfect seed. We learned how this is kept safe and warm, and supplied with food, and how at last it finds its way out of the seed shell into the world. If you have been using this book in the right way, not only have you read about these things, but you have seen them with your own eyes. Some of the fruits you have tasted, and others you have handled. You have examined the silky sails of the seeds which float through the air, and the hooks and claws of those little tramps that manage to steal free rides. And some seeds you have planted. These you have watched day by day, and you have seen that the baby plants burst their seed shells much as a chick bursts its eggshell. Now what I want you to do is this : I want you to study carefully the different parts of these little creatures that are living out their strange, beautiful lives under your very eyes. I want you to watch them from day to day ; to learn how they eat and drink and work 9 6 and grow, until you feel that you know them really well. First let us look at this bean plant which is breaking its way through the earth. Just what do you see ? You see what looks like a thick, green hoop (Fig. 105), do you not? What is it, this odd-looking hoop ? Perhaps some of you still think that it is the root, for I remember that I too once supposed the root was the part of the plant which first left the bean. Fig. 105 But really this made by the bent that this is the its lower end grows from its upper part flowers, and fruit. green hoop is stem. We know stem because from L, the root, while '" grow the leaves, Fig. 106 Certainly it is curious, the way in which this bean plant comes into the world. Why does it not grow straight up and down, do you suppose ? — up with its stem and leaves, and down with its root ? But we must not forget that whenever some habit on the part of a plant has filled us with surprise, sooner or later = we have discovered that the plant's reason for it was a good one. What reason can the bean plant have for coming into the world crooked ? Before reading further, try to think this out for your- selves. Try each one of you to form an idea of what Fig. 107 97 the bean plant gains by pushing through the earth with this hooped stem. I hope some of you may guess correctly. But even if you have not been successful in naming the cause of the bean plant's humped back, at least you have been working your brains ; and every time you do this, you help to -keep them in good order. If you let your brain lie idle, and allow your teacher or your book to do for you not only all the asking of questions, but also all the thinking-out of answers, it will get as dull and rusty and good for nothing as a machine that is laid by for a long time gets dull and rusty and good for nothing. I should be sorry to think that any of you children were carrying about in your heads any such rusty, good- for-nothing brains. So if you wish to keep them bright and clean, and in good working order, you must try to do your own thinking. And now, hoping you have tried to guess for yourselves the reason of this crooked back, I will explain it to you. But first handle carefully the tip of one of the upper leaves on the larger bean plant. You see how delicate this is. Then feel how firm and hard and tough is the green hoop of the plant which is just breaking through the earth. Now suppose the bean plant had grown straight up into the air, would not its uppermost part have been the delicate leaf tips ? Can you not see that these would have been too frail to work their way uninjured through the earth ? DANA'S PLANTS. — 7 9 8 But by crooking its stout stem the plant opened quite easily a path for itself and for its leaves, and no harm was done anywhere (Figs. 106, 107). Was not this a clever thought ? But really every step in the life of the plant is full of interest, if we watch it with sharp eyes and a brain in good order. Part III — Roots and Stems >X«c ROOT HAIRS CAREFULLY pull up one of your bean plants and look at its root (Fig. 108). You see that the root grows downward from the lower part of the stem. This bean root looks not unlike a bunch of dirty threads, some quite thick, others very thin. If you look at these thread-like roots in a good light, perhaps you may be able to see growing from them a quantity of tiny hairs. Now, what is the use of such a root as this ? Surely some of you are able to guess at the object of this root, and I will help the others to the answer. Give a firm though gentle tug to one of the larger plants, — one of those that are growing in the pot of earth. Does it come out easily in your fingers ? Not at all. Unless you have been really rough, and used quite a good deal of strength, the little plant has kept its hold. 99 Fig. 108 100 What holds it down, do you suppose ? Ah ! Now you know what I am trying to get at. Its root is what holds it in place ; and this holding of the plant in place is one of its uses. Its thread-like branches are so many fingers that are laying hold of the earth. Each little thread makes it just so much the more difficult to uproot the plant. I think you know already that another juse of the root is to obtain nourishment for the plant. These thread-like roots, you notice, creep out on every side in their search for food and drink. The water they are able to suck in easily by means of tiny mouths, which we cannot see. But the plant needs a certain amount of earth food, which in its solid state could not slip down these root throats any more easily than a young baby could swallow a lump of sugar. Now, how is the plant to get this food, which it needs if it is to grow big and hearty ? Suppose the doctor should tell your mother that a lump of sugar was necessary to the health of your tiny baby brother, what would she do about it ? Would she put the great lump into the baby's mouth ? You laugh at the very idea. Such a performance might choke the baby to death, you know quite well. Perhaps you think she would break the lump into small pieces, and try to make the baby swallow these ; but even these small pieces might prove very dangerous to the little throat that had never held a solid morsel. " She would melt the sugar in water, then the baby could swallow it," one of you exclaims. That is exactly what she would do. She would melt, IOI or dissolve as we say, this sugar in water. Then there would be no difficulty in its slipping down the little throat ; for you know when anything is thoroughly melted or dissolved, it breaks up into such tiny pieces that the eye cannot see them. When you melt a lump of sugar in a glass of water, the sugar is all there as much as it ever was, although its little grains no longer cling together in one big lump. And so when the plant needs some food that the little root hairs are not able to swallow, it does just what the mother does. It melts or dissolves the solid food so that this is able to slip quite easily down the root throats. But how does it manage this ? No wonder you ask. A root cannot fill a glass with water, as your mother did. Even if it could, much of this solid food which is needed by the plant would not melt in water, or in anything but certain acids ; for you know that not everything will dissolve, like sugar, in water. If I place a copper cent in a glass of water, it will remain a copper cent, will it not ? But if I go into a drug shop and buy a certain acid, and place in this the copper cent, it will dissolve almost immediately ; that is, it will break up into so many tiny pieces that you will no longer see anything that looks at all like a cent. And as much of this earth food, like the copper cent, can only be dissolved in certain acids, how is the plant to obtain them ? Certainly it is not able to go to the drug shop for the purpose, any more than it was able to fill a glass with water. 102 Fortunately it does not need to do either of these things. If you will look closely at the root of a plant that has been raised in water, you will see that it is rough with a quantity of tiny hairs. These little hairs hold the acid which can dissolve the solid earth food. When they touch this food, they send out some of the acid, and in this it is soon dissolved. Then the little mouths suck it in, and it is carried up through the root into the rest of the plant. Would you have guessed that plants were able to prepare their food in any such wonderful way as this ? It surprised me very much, I remember, to learn that a root could give out acids, and so dissolve the earth food it needed. >xk< ROOTS AND UNDERGROUND STEMS IN the last chapter you learned that the root of the bean plant has two uses. It holds the plant in place, and it provides it with food and drink. Such a root as this of the bean plant — one that is made up of what looks like a bunch of threads — is called a "fibrous" root. The next picture shows you the root of a beet plant (Fig. 109). Such a thick, fat root as this of the beet is called a "fleshy" root. The carrot, turnip, radish, and sweet potato, all have fleshy roots. io3 This beet root, like that of the bean, is useful both in holding the plant in place and in providing it with food and drink. But the fleshy root of the beet does something else, — something that is not attempted by the fibrous root of the bean. Here we must stop for a moment and look into the life of the beet plant. During its first year, the beet puts out leaves ; it neither flowers nor fruits, but it eats and drinks a great deal. And as it does not use up any of this food in flowering or fruiting, it is able to lay by much of it in its root, which grows large and heavy in consequence. When the next spring comes on, the beet plant is not obliged, like so many of its brothers and sis- ters, to set out to earn its living. This is provided already. And so it bursts into flower without delay, its food lying close at hand in its great root. So you see that a fleshy root, like that of the beet, does three things : — i. It holds the plant in place. 2. It provides it with food and drink. 3. It acts as a storehouse. These plants that lay by food for another year are useful as food for man. Their well-stocked roots are :o4 taken out of the ground and eaten by us before the plant has had the chance to use up its food in fulfilling its object in life, that of fruiting. Of course, when it is not allowed to live long enough to flower and fruit, it brings forth no young plants. So a habit which at first was of use to the plant becomes the cause of its destruction. Perhaps you think that the white potato (Fig. 1 10) is a plant with a fleshy root. If so, you will be surprised to learn that this potato is not a root at all, but a stem. You think it looks quite unlike any other stem that you have ever seen. Probably you do not know that many stems grow under- neath the ground, instead of straight up in the air. If you find something in the earth that you take to be a root, you can feel pretty sure that it really is a stem, if it bears anything like either buds or leaves. A true root bears only root branches and root hairs. But in this white potato we find what we call "eyes." These eyes are buds from which new potato plants will grow. Close to these are little scales which really are leaves. So we know that the potato is a stem, not a root. But this you could not Fig. hi io5 have found out for yourselves, even with the sharpest of eyes. Fig. 1 1 1 shows you the thick, fat, underground stem of the cyclamen. From its lower part grow the true roots. Next you have that of the crocus (Fig. 112), while here to the right is that of the wood lily (Fig. 113). This is covered with underground leaves. All these stems are usually called roots. In the botanies such an underground stem as that of the Jack-in-the-pulpit (Fig. 114) is named a "corm," while one like that of the crocus is called (Fig. 112). All have a somewhat rounded shape. During our walks in the woods last fall, often we found the Solo- mon's seal, and stopped to admire its curved stem, hung with blue berries. I hope one of you boys whipped out your pocketknife and dug into the earth till you found its underground stem (Fig. 115). This was laid lengthwise, its roots growing from its lower side. From its upper side, close to one end, sprang the growing plant. But what causes those round, curious-looking scars ? Fig. 114 Fig. 115 io6 These scars are what give the plant its name of " Solo- mon's seal." They are supposed to look like the mark left by a seal upon wax. They show where the underground stem has budded in past years, sending up plants which in turn withered away. Each plant has left a scar which shows one year in the life of the underground stem. Next spring when you find in the woods the little yellow bells of the Solomon's seal, I think you will have the curiosity to dig down and find out the age of some of these plants. Another plant with an underground stem is the beau- tiful bloodroot. As its name tells you, this so-called root contains a juice that looks something like blood. Such underground stems as those of the Solomon's seal and bloodroot are called " rootstocks." Rootstocks, corms, and bulbs are all storehouses of plant food, and make possible an early flowering the following spring. ABOVE-GROUND ROOTS BUT before we finished talking about roots we were led away by underground stems. This does not matter much, however, for these underground stems are still called roots by many people. Just as stems sometimes grow under ground, roots sometimes grow above ground. Many of you know the English ivy. This is one of the few plants which city children know quite as well IO/ Fig. 116 as, if not better than, country children ; for in our cities it nearly covers the walls of the churches. In England it grows so luxuriantly that some of the old buildings are hidden beneath masses of its dark leaves. This ivy plant springs from a root in the earth ; but as it makes its way up- ward, it clings to the stone wall by means of the many air roots which it puts forth (Fig. 1 1 6). Our own poison ivy is another plant with air roots used for climbing purposes. Often these roots make its stem look as though it were covered with a heavy growth of coarse hair. There are some plants which take root in the branches of trees. Many members of the Orchid family perch themselves aloft in this fashion. But the roots which provide these plants with the greater part of their nourish- ment are those which hang loosely in the air. One of these orchids you see in the picture (Fig. 117). It is found in warm countries. The orchids of our part of the world grow in the ground in everyday fashion, and look much like other plants. These hanging roots which you see in the picture are covered with a sponge- like material, by means of which they suck in from the air water and gases. Fig. 117 io8 In summer, while hunting berries or wild flowers by the stream that runs through the pasture, you have noticed that certain plants seemed to be caught in a tangle of golden threads. If you stopped to look at this tangle, you found little clusters of white flowers scattered along the thread-like stems (Fig. 118); then, to your surprise, you discovered that nowhere was this odd-looking stem fastened to the ground. It began and ended high above the earth, among the plants which crowded along the brook's edge. Perhaps you broke off one of these plants about which the golden threads were twining. If so, you found that these threads were fastened firmly to the plant by means of little roots which grew into its stem, just as ordinary roots grow into the earth. This strange plant is called the " dodder^' When it was still a baby plant, it lay within its seed upon the ground, just like other baby plants ; and when it burst its seed shell, like other plants it sent its roots down into the earth. But unlike any other plant I know of, it did not send up into the air any seed leaves. The dodder never bears a leaf. It sent upward a slender golden stem. Soon the stem began to sweep slowly through the air in circles, as if searching for something. Its movements were 109 like those of a blind man who is feeling with his hands for support. And this is just what the plant was doing: it was feeling for support. And it kept up its slow motion till it found the plant which was fitted to give it what it needed. Having made this discovery, it put out a little root. This root it sent into the juicy stem of its new-found support. And thereafter, from its private store, the unfortunate plant which had been chosen as the dod- der's victim was obliged to give food and drink to its greedy visitor. And now what does this dodder do, do you suppose ? Perhaps you think that at least it has the grace to do a little something for a living, and that it makes its earth root supply it with part of its food. Nothing of the sort. Once it finds itself firmly rooted in the stem of its victim, it begins to grow vigorously. With every few inches of its growth it sends new roots deep into this stem. And when it feels quite at home, and perfectly sure of its board, it begins to wither away below, where it is joined to its earth root. Soon it breaks off entirely from this, and draws every bit of its nourishment from the plant or plants in which it is rooted. Now stop a moment and think of the almost wicked intelligence this plant has seemed to show, — how it keeps its hold of the earth till its stem has found the plant which will be compelled to feed it, and how it gives up all pretense of self-support, once it has cap- tured its prey. You have heard of men and women who do this sort no of thing, — who shirk all trouble, and try to live on the work of others ; and I fear you know some boys and girls who are not altogether unlike the dodder, — boys and girls who never take any pains if they can possibly help it, who try to have all of the fun and none of the work ; but did you ever suppose you would come across a plant that would conduct itself in such a fashion ? Of course, when the dodder happens to fasten itself upon some wild plant, little harm is done. But unfortunately it is very partial to plants that are useful to men, and then we must look upon it as an enemy. Linen is made from the flax plant, and this flax plant is one of the favorite victims of the dodder. Sometimes it will at- tack and starve to death whole fields of flax. But do not let us forget that we happen to be talking about the dodder because it is one of the plants which put out roots above ground. There is one plant which many of you have seen, that never, at any time of its life, is rooted in the earth, but which feeds always upon the branches of the trees in which it lives. This plant (Fig. 119) is one of which perhaps you hear and see a good deal at Christmas time. It is an old English custom, at this season, to hang somewhere I II about the house a mistletoe bough (for the mistletoe is the plant I mean) with the understanding that one is free to steal a kiss from any maiden caught beneath it. And as mistletoe boughs are sold on our street corners and in our shops at Christmas, there has been no diffi- culty in bringing one to school to-day. The greenish mistletoe berries are eaten by birds. Often their seeds are dropped by these birds upon the branches of trees. There they hold fast by means of the sticky material with which they are covered. Soon they send out roots which pierce the bark, and, like the roots of the dodder, suck up the juices of the tree, and supply the plant with nourishment. Then there are water roots as well as earth roots. Some of these water roots are put forth by plants which are nowhere attached to the earth. These are plants which you would not be likely to know about. One of them, the duckweed, is very common in ponds ; but it is so tiny that when you have seen a quantity of these duckweeds, perhaps you have never supposed them to be true plants, but rather a green scum floating on the top of the water. But the duckweed is truly a plant. It has both flower and fruit, although without a distinct stem and leaves ; and it sends down into the water its long, hang- ing roots, which yet do not reach the ground. There are other plants which have at the same time underground roots and water roots. Rooted in the earth on the borders of a stream some- times you see a willow tree which has put out above- ground roots. These hang over the bank and float in I 12 the water, apparently with great enjoyment; for roots not only seem to seek the water, but to like it, and to flourish in it. If you break off at the ground one of your bean plants, and place the slip in a glass of water, you will see for yourselves how readily it sends out new roots. I have read of a village tree the roots of which had made their way into a water pipe. Here they grew so abundantly that soon the pipe was entirely choked. This rapid, luxuriant growth was supposed to have been caused by the water within the pipe. So you see there are underground roots and above- ground roots and water roots. Usually, as you know, the underground roots get their food from the earth ; but sometimes, as with the Indian pipe, they feed on dead plants, and sometimes, as with the yellow false foxglove, on other living roots. 3>^< WHAT FEW CHILDREN KNOW TO-DAY we must take another look at the plants in the schoolroom garden. By this time some of them have grown quite tall. Others are just appearing above the earth. Here is a young morning-glory (Fig. 120). We see that its stem, like that of the bean, was the first thing to come out of the seed. This stem has turned down- ward into the earth. From its lower end grows the root, which buries itself deeper and deeper. H3 An older plant shows us that the upper part of the stem straightens itself out and grows upward, bear- ing with it a pair of leaves (Fig. 121). From between these starts a tiny bud, that soon unfolds into a fresh leaf, which is carried upward by a new piece of stem. On the tip of this new piece of stem grows another bud, which also enlarges into a leaf, and in the same way as before is borne upward (Fig. 122). In this fashion the plant keeps growing big- ger and bigger. Soon branches start from the sides of the stem, and later flowers and fruits. So we see that it is the stem which bears all the other parts of the plant. Most people think that the plant springs from the root ; but you children know better. With your own eyes, here in the schoolroom, you have seen that instead of the stem growing from the root, the root grows from the stem. That more people have not found this out, is because they do not use their eyes rightly. Every spring hundreds and thousands of baby plants make their way out of the seed shell into the world, just as you saw the baby bean plant do, sending out first its little stem. which pointed downward into the earth and FlG - I2 started a root. And every spring there are hundreds of thousands of men and women, and boys and girls, who go through the woods and fields, and across the' parks and along the streets, as though they were blind, taking no notice of the wonders all about them. Fig. 120 Fig. 121 ANA'S PLANTS. PLANTS THAT CANNOT STAND ALONE ALREADY we have learned that some stems grow under ground, and that by most people these are called roots. And among those which grow above the ground we see many dif- ferent kinds. The stem of Indian corn grows straight up in the air, and needs no help in standing erect. Fig. 123 shows you the morning- glory plant, the stem of which is unable to hold itself upright with- out assistance. A great many plants seem to need this same sort of help ; and it is very in- teresting to watch their behavior. The stem of the young morning- glory sweeps slowly through the air in circles, in search of some support. You remember that the curious dodder acted in this same way, and that its movements reminded us of the manner in which a blind man feels about him "4 H5 Fig. 123 When the morning-glory finds just the support it needs, it lays hold of it, and twists about it, and then climbs upward with great satisfaction. I want you to watch this curious performance. It is sure to amuse you. The plant seems to know so well what it is about, and it acts so sensibly when it finds what it wants. But if it happens to meet a glass tube, or something too smooth to give it the help it needs, it slips off it, and seems almost as discouraged as a boy would be who fails in his attempt to climb a slippery tree or telegraph pole. The bean is another plant whose stem is not strong enough to hold it erect without help. But, unlike the morning-glory, the stem of the bean does not twist about the first stick it finds. Instead it sends out many shorter stems which do this work of reach- ing after and twining about some support. In this same w T ay the pea is able to hold up its head in the world. Other plants are supported by their leaf- stalks. These twist about whatever sticks or branches they can find, and so prevent the plant from falling. The picture (Fig. 124) shows you how the garden nightshade climbs by its leafstalk. The beautiful clematis clambers all over the roadside thicket in the same way. The English ivy and the poison ivy, as we have Fig. 124 n6 learned already, climb by the help of roots which their stems send out into the trunks of trees and the crevices of buildings. The stems of the Virginia creeper and of the Japa- nese ivy give birth to smaller stems, such as you see in the picture below. When the tips of these reach the wall, or the tree trunk up which the plant is trying to climb, they broaden out into little flat, round plates, which, like tiny claws, cling to the surface (Fig. 125). I hope your teacher will tell you where you can find one of these two plants, for in the country the creeper is plentiful, and the Japanese ivy is planted freely in our cities; and I hope you will go and see how firmly these little flattened stems cling to the wall or to the tree trunk. Try gently to pull off one of these determined little stems, and I think you will admire it for its firm grip. There are other than climbing plants whose stems are not strong enough to stand up straight without help. Think of the beautiful water lily. If you have ever spent a morning in a boat (as I hope you have, for it is a delightful way to spend a morning) hunting water lilies, you will remember that these flowers float on top of the water ; and when you reach over to pick them, you find the tall flower stems standing quite erect in the water. But what happened when you broke them off, and held them in your hand ? Why, these long stems proved to have no strength at H7 all. They flopped over quite as helplessly as the morning-glory vine would do if you unwound it from the wires up which it was climbing ; and you saw that they had only been able to stand up straight because of the help the water had given them. SOME HABITS OF STEMS BESIDE the stems which stand erect without help (like that of the corn), and those which climb by means of some support (like those of the morning-glory and bean), and those which are held up by the water (like that of the water lily), there are stems which slant upward (like that of the red clover), stems which lie upon the ground (like that of the snowberry), and stems which creep (that is, which run along the ground), and which strike root, and so give rise to new plants (like those of the white clover and strawberry). With the new plants you meet, try always to notice to which of these different classes their stems belong ; for later, when you wish to use the botany and to learn the names of the plants, this habit of noticing things will help you greatly. Then, too, with every new plant, you should find out whether its stem is round or square, and whether it is smooth or hairy, or if it is at all thorny. The thorns and hairs which some plants scatter over their stems protect them from animals and insects, which might otherwise do them an injury. By the thorns little snails are prevented from climb- n8 ing up the stems and eating away the green leaves above ; and the cows and horses are pretty sure to leave the thorny plants well alone. It is easy to understand why we find thistle plants growing thickly in the pas- ture, which is nearly bare of everything else. Long ago these thistles clothed themselves in an armor of prickles, and ever since they have been successful in waging war against the cattle. Sometimes a tree will cover its lower part only with thorns. Why is this, do you suppose ? This is because only the lower branches are within reach of the cattle. Only these have any need of a suit of thorns. The wild pear, which grows in Europe, is such a tree as this. A stem that is covered with hairs, and also one that is sticky in spots, serves to protect its flowers from an attack by ants, or by other insects that might do them harm ; for these flowers, you remember, hold the golden dust which works such wonders when carried to another flower. And you recall, that, when bees go to plants for the sweet stuff from which honey is made, they carry this flower dust from blossom to blossom. But if the sweet stuff is given up to greedy insects, then this good work is not done ; for the bees get disgusted, and stop visiting the plants which do not take more pains to please them. And so oftentimes the plant covers its stem with hairs or with sticky drops, so that the med- dlesome little thieves cannot get up to the blossom at all. So if you pick a flower which leaves your fingers sticky, you must remember that the plant is only doing its duty in trying to please the bees. ii 9 Although I have seen these plants do so many queer things that I am learning not to be surprised at their clever ways, I must own that I was a little astonished to see how anxious one of them was to save itself un- necessary trouble. There is a plant called the ''amphibious knotweed." This is a rather difficult name, I know. This word "amphibious" is applied to something that can live both in water and on land ; and this plant grows some- times in the pond or river, and sometimes on the shore. When on land, its stem is covered with the hairs which serve to keep meddlesome insects from climbing up to its pretty balls of pink flowers. In the water there is no danger of any such attack from insects ; and so when it happens to grow in the pond or river, this knowing little plant does not trouble itself to clothe with hairs its stem, but leaves this quite smooth. Next summer I hope you will hunt up the amphibious knotweed, and will compare the smooth water stem with the hairy one that grows on land. **;< STEMS AND SEED LEAVES THE smaller plants usually have green stems. The larger ones have brown, woody stems, such as you see in bushes and trees ; for the trunk of the biggest tree in the world is nothing but a great stem. The delicate green stems die down to the ground during the cold winter. Sometimes the whole plant 120 Fig. 126 dies, the root below as well as the stem above ground. But often the root (or what we usually call the root) lives, and sends up a fresh stem the next year. But the woody stems live through the winter, and put out fresh leaves and branches the next spring. Without a magnifying glass, it is difficult to see of just what the green stems of the small plants are made up ; and these you can pass by for the present. But if your teacher will cut across the stem of a large rose, you can see here an outer covering, the green skin; within this, a ring of woody material ; and in the center of the stem, a soft white stuff called "pith." When we were reading about seed leaves, I told you that by the stem and leaves of a plant you could tell whether it brought into the world more than one seed leaf. Now, when a stem like that of the rose is divided into three well-defined parts, — the skin, or bark, outside ; next the woody part ; and the soft white pith in the middle, — then you can be pretty sure that the plant had more than one seed leaf. This picture (Fig. 126) shows you a section of a corn- stalk. Here you do not see the three parts that were so plain in the rose stem, for the woody part is not gathered together in a ring: it is scattered through the soft part, so that you cannot distinguish the one from the other. Running lengthwise you see the scattered bundles of woody threads, the cut ends of which give the dotted look on top. I2T Now, such a stem as this of the corn shows you that the plant was born with only one seed leaf. Try to remember the difference between these two stems. This next picture (Fig. 127) shows a part of the trunk or stem of the fir tree. The dark outside circle is the bark. The rings within this are the wood. Each year one of these woody rings is added to the tree, the last ring of all lying next to the bark ; so, if you count these, you can find out how many years the tree has lived. In the center we see the soft stuff called pith. What do these three divisions show ? The trunk of the palm in the next picture (Fig. 128) is like the stem of the corn. The wood is not gathered in rings, but is scattered through the soft part in thread-like bundles, so that we cannot tell just the age of the tree. And what else do you know about the palm ? Why, you know that it came into the world with but one seed leaf. If it had had more than one, its stems would have had woody rings such as we see in the fir. In the schoolroom you cannot see palms and firs ; but you can find a log in a wood pile which will show you just such woody rings as prove that the fir tree had more than one seed leaf. And you can look at a stalk brought from the corn- Fig. 128 122 field that will show you how the trunk of the palm tells us that this tree began life with only one seed leaf. 3XKC "WELL DONE, LITTLE STEM" IT is wonderful how much there is to learn about everything. We began this book with an apple, and I had no more idea than you that that apple was going to keep us busy for days. And then the apple reminded us of its cousins, the pear and plum and peach and cherry and rose. And if we had not stopped short, we should have been intro- duced to so many more cousins that we should have had neither room nor time for anything else. From fruits we went to seeds. At first it seemed almost as though we ought to finish up the seeds in two or three readings ; but this did not prove to be the case. The mere naming of the different ways in which seeds went traveling, covered so many pages that it was all we could do to find time to tell how a few of the baby plants were cared for, and how they made their way out of the seed shell into the world. But when we came to roots, we felt there would be no temptation to loiter by the way, for roots seemed rather dismal things to talk about. Yet it took some little time to show the different uses of a root, and to talk about air roots and water roots, as well as earth 123 roots. It was not altogether easy to make clear just how the little root hairs keep acids on hand in which to melt the solid earth food which their throats are too delicate to swallow. And it was quite a long story when we came to the dodder, which roots in the stems of living plants, and steals all its food from them ; and to those orchids whose long roots swing from tree branches and draw their nourishment from the air. About stems, however, even I felt a little discouraged ; for though it is from the stem that all other parts of a plant grow, yet it is not looked upon generally as an interesting object w r hen studied by itself ; and I dare say you children still feel that stems are less amusing than fruits, or seeds, or roots. Still we can hardly help admiring the way in which a stem, when it lies underground, like that of the lily or the Jack-in-the-pulpit, makes its food so carefully all through the summer, and waits so patiently through the long winter in order to help its plant to burst into flower, and to ripen into fruit as soon as possible, and without more labor and food hunting when the spring comes. When a stem, like that of the morning-glory, sweeps slowly and carefully through the air in search of some- thing to lay hold of in its efforts to climb upward, and when, on finding this support, it makes such good use of it, we feel inclined to say, "Well done, little stem." And when a stem on land knows how to keep off meddlers, yet has the wisdom not to take unnecessary trouble when afloat, like that of the amphibious knot- weed, then we feel that a plant gives its stem, as well as its other parts, a large supply of common sense. 124 There is a great deal more that might be said on this subject. What a plant lives on, what it eats and drinks and breathes, is very interesting to learn about. And of course the food taken in by the roots must be carried upward through the stem. But to write simply about this is difficult. As much as I think most of you can understand, I will tell you when we take up leaves. Part IV — Buds 3>*K< BUDS IN WINTER WHEN school opened in September, all the trees were covered with leaves ; and some of these trees were bent with their burden of pears and apples and peaches, while others were hung with prickly chest- nut burrs or with acorns or walnuts. But now all is changed. The woods look gray and bare ; for nearly all the leaves have fallen save those ot the oak, which are still holding fast to the branches. These oak leaves are brown and stiff and leathery. They crackle and rustle when the wind blows through them. In the city squares you see the same change, — bare branches in place of green leaves. At this season it is hardly worth while, perhaps you think, to go to the woods or to the park ; for there is nothing to be seen, — no leaves, no flowers, almost no fruits. Better wait till spring for any such expedition. Here you are wrong. Provided you know what to look at, and how to look at it, there is no month of the year when the woods and parks are not full of interest. And so at this season, when the trees are bare of leaves, better than at any other, certain things can be studied. 125 126 I have asked your teacher to bring to school to-day branches from the different trees which are looking so cold and lonely. It is nearly always possible to find the horse-chestnut, the maple, or the cherry ; and we will talk especially about these branches. On your way to school, perhaps you pass every day a horse-chestnut tree ; but its branches are so far above vour heads that you may never have noticed that in winter the leafless twigs bear just such buds as you see in the picture (Fig. 129), and on the branch which is before you. The largest bud grows on top. This is where the beautiful flower cluster that comes out in May lies hidden. The smaller buds that grow lower down the stem hold only leaves. You see that these buds grow in pairs, one bud opposite another, and always above a sort of scar on the twig. This scar was made last fall by the breaking-off of a leaf. Perhaps you fancy that these buds have only just made their appearance. If you have any such idea as that, you are quite wrong. Last summer, when the leaves were large and fresh, the little buds, that were not to unfold for nearly a year, began to form, growing somewhat larger as the weeks went by, and folding themselves tightly in the brown, leathery wrappings that were to keep them safe from the cold of winter. I should like you to pill off these wrappings, and see how well the horse-chei-tnut tree defends from cold its baby leaves. 127 First you find about seven of these outside wrappings. The very outer ones are thick and brown, and covered with the sticky stuff that makes them proof against rain. The next ones are brown and thick where their tips are exposed to the air, while the inner ones are green and delicate. But altogether they make a warm, snug covering for young leaves and flowers. As for the baby leaves themselves, they are all done up in a furry stuff that keeps them from catching cold, even if a gust of wind or a few drops of rain should manage to make a way through the waterproof and almost air-tight wrappings. So you see that the leaves and branches and young flowers of a plant or tree are looked after just as care- fully as is the seed within the seed case, or the baby plant in its seed shell. D^C A HAPPY SURPRISE HERE you see a branch from the red maple (Fig. 130). On the flowering shoots three buds grow side by side. The middle, smaller one holds the leaves. These leaves do not appear until the two outer, larger buds have burst into flower clusters ; for the flowers of the red maple appear before its leaves. I want you to bring to school as many different kinds of branches as you can find, and I hope you will examine Fig 128 them all very carefully. Notice the position of their buds, and whether these grow close together or are scat- tered far apart, and whether one bud grows just oppo- site another ; and look for the marks left by the leaves which broke off last fall. When the buds are large enough, you will find it interesting to pull them apart (but you must do this with great care) and see how beautifully wrapped are the baby leaves and flowers. I chose the branch of the horse-chestnut for special examination, because its large buds show their contents plainly. When a bud grows on the tip of a stem, its work is to carry on that stem ; but when it grows just above a leaf scar, you can be sure that it is a young branch. Such a branch may bear either leaves or flowers, or both. But buds do not all grow up at the same time, or necessarily at all. The strongest ones are the first to open. The others may keep quiet for some time, not unfolding, perhaps, unless some of the earlier ones are killed. In this case, the waiting buds try to fill the gap, and carry on the good work of clothing the tree with leaves and flowers. Sometimes they wait over till another year, and occa- sionally a bud never opens at all. You all enjoyed planting seeds, and watching them grow under your very eyes. Now I am going to propose to you a scheme which has given me quite as much pleasure as my pot gar- dens. 129 When the buds on the winter branches have swelled the least little bit, after a few warm days in February perhaps, go to the woods and cut several branches in places where no one will miss them, and take them home and put them in warm water, in a warm, bright corner, and see what happens. It will be a real joy to you, watching these little buds get bigger and bigger, till the outer wrappings are forced apart, and either thrown well aside, or pushed off altogether ; and you will be filled with delight when the delicate baby leaves begin to stretch themselves, or, better still, when the pure, beautiful flowers burst from the brown, dead-looking twigs. Get branches of cherry, apple, peach, and pear ; and bring in the pussy willow, the maple, the ForsytJiia, the spicebush, and, if you can find it, the mountain laurel ; and if you do not pass many moments of almost breath- less pleasure watching the wonders these budding- branches are so eager to reveal, you are not the chil- dren I take you to be. >**< SOME ASTONISHING BUDS THERE are some plants which do not put any winter wraps on their delicate buds ; and, strangely enough, these buds do not seem to suffer for lack of clothing. In a warm country this would not surprise us. If we were going to spend the winter in the West Indies, we dana's plants. — q 130 should not carry our furs with us, for we should not meet any weather cold enough to make them necessary ; and so perhaps in the West Indies the buds have no more need of winter clothing than we ourselves. But if we were to spend the Christmas holidays some- where in our Northern mountains, if we were going for skating and coasting to the Catskills or the Adiron- dacks, we should not fail to take with us our warmest clothes. And yet, if we walked in the Adirondack woods, we should meet over and over again a shrub bearing naked buds, their folded, delicate leaves quite exposed to the bitter cold. This shrub is the hobblebush, the pretty flowers of which you see on p. 246. I do not understand any better than you why this hobblebush does not tuck away its baby leaves beneath a warm covering. Neither do I understand how these naked leaves can live through the long, cold winter. I should like very much to satisfy myself as to the reason for this, for they do live and nourish ; and I wish that such of you children as know the home of the hobble- bush (and it is common in many places) would watch this shrub through the winter, and see if you can dis- cover how it can afford to take less care of its buds than other plants. There is one tree which seems to shield its buds more carefully in summer than in winter. This tree is the buttonwood. It grows not only in the country, but in many of our city streets and squares. You know it by the way in which its bark peels in long strips from its 3i trunk and branches, and by the button-like balls which hang from the leafless twigs all winter. If you examine one of these twigs, now that they are bare of leaves, you see the buds quite plainly ; but if it is summer time, when the leaves are clinging to the branch, you see no buds, and suppose that they are not yet formed. But here you are wrong. " How can that be ? " you ask. You looked care- fully, and nowhere was there any sign of a bud. But you did not look everywhere, after all. If very carefully you had pulled off one of the leaves, you would have found the young bud tucked safely away beneath the hollow end of the leafstalk. This leafstalk fitted over it more neatly than a can- dle snuffer over a candle (Fig. 130- Try this for yourselves next summer. I think you will be pleased with this pretty arrangement. We learned that the potato, even though it is buried in the earth and does not look like it, is really one of the thickened stems of the potato plant. The "eyes" of the potato look as little like buds as the potato itself looks like a stem. Yet these "eyes" are true buds ; for, if we leave our potatoes in the dark cellar till spring, the "eyes" will send out slender Fig. 131 132 shoots in the same way that the bads on the branches of trees send out young shoots. As I told you before, the usual place for a bud is just between the stem and the leafstalk, or the scar left by the leafstalk ; but if a stem is cut or wounded, often- times it sends out buds in other than the usual places. This habit accounts for the growth of young shoots from stumps of trees, and from parts of the plant which ordinarily do not give birth to buds. Some buds never open while fastened to the stem of the parent plant ; but after a time they fall to the ground, strike root, and send up a fresh young plant. The tiger lily, the plant that grows so often in old gardens, bears such buds as these. We call them "bulblets" when they act in this strange fashion. Perhaps even more surprising than this is the fact that leaves sometimes produce buds. In certain warmer countries grows a plant called the Bryophyllum. If you look carefully at the thick, fleshy leaves of this plant, along its notched edges you will see certain little dark spots ; and if you cut off one of these leaves and pin it on your window curtain, what do you suppose will happen ? Well, right under your eyes will happen one of the strangest things I have ever seen. From the row of dark spots along the leaf's edge, springs a row of tiny, perfect plants (Fig. 132). And when these tiny plants are fairly started, if you Fig. 132 133 lay the leaf on moist earth, they will send their roots into the ground, break away from the fading leaf, and form a whole colony of new plants. Now, those dark spots along the leaf's edge were tiny buds ; and the thick leaf was so full of rich food, that when it was broken off from the parent plant, and all of this food was forced into the buds, these were strong enough to send out roots and leaves, and to set up in life for themselves. It will not be difficult for your teacher to secure some of these leaves of the Bryophyllum, and to show you in the schoolroom this strange performance. All children enjoy wonderful tricks, and I know of nothing much prettier or more astonishing than this trick of the Bryophyllum. Part V — Leaves :•**< HOW TO LOOK AT A LEAF TO-DAY we begin to learn what we can about the leaves of plants. I hope that enough fresh green leaves have been brought to school to allow every child here to have one on the desk before him, so that he may see, as far as is possible, just what is being talked about. This picture (Fig. 133) shows you the leaf of the quince. Now, suppose you held in your hand a leaf fresh from the quince tree, and were asked to describe it to a blind person, how would you tell about it ? You would begin, I fancy, by saying, "This leaf is green," for the color of an object is one of the things we notice first. Next perhaps you would describe its shape. "This quince leaf is rounded, yet it is too long to be called a round leaf." So you would use the word "oblong." Like most leaves, then, it is green ; other leaves, it is oblong. Fig. 133 and like some *35 136 Now look at this picture (Fig. 134) of the maple leaf. This, you see, is not oblong, but three-pointed. What other differences do you notice between these two leaves ? You do not seem quite sure as to whether there are any other differences. But do you not notice that the edge of the maple leaf is cut into little teeth, like the edge of a saw, while the edge of the quince leaf is smooth ? And let me tell you here, that when I speak of a leaf, I speak not only of the enlarged flat surface we call the " leaf blade," but also of the "leafstalk." A leaf usually consists of a leafstalk and a leaf blade, though some leaves are set so close to the stem that they have no room for any stalks of their own. "Oh! then," you answer, "the leafstalk of the maple is much longer than that of the quince, and there are little bits of leaves at the foot of the quince leafstalk which the maple is without." You have done very well, and have noticed just those things which you should. The shape of the leaf blade, whether the edge of this is toothed, the length of the leafstalk, and whether this has any little leaves at its foot where it joins the stem, are things always worth noticing. Now take your leaves and hold them up against the Fig. 134 137 light, or else look at the picture of the quince leaf, and study carefully the make-up of the blade. You see that this is divided lengthwise by a heavy rib which juts out on the lower side. From this "midrib," as it is called, run a great many smaller lines. These are called "veins." And from these branch off still smaller veins that bear the name of " veinlets." And somewhat as the paper is stretched over the sticks of a kite, so from the leaf's midrib to its edge, and from vein to vein, is drawn the delicate green material which makes up the greater part of the leaf. What I wish you to learn this morning is, how to look at a leaf. Before using our brains rightly, we must know how to use our eyes. If we see a thing as it really is, the chances are that our thoughts about it will be fairly correct. But it is surprising how often our eyes see wrong. If you doubt this, ask four or five of your playmates to describe the same thing, — some street accident, or a quarrel in the playground, which all have seen, or something of the sort, — and then I think you will understand what I mean by saying that few people see correctly. 138 THE MOST WONDERFUL THING IN THE "WORLD IT would be quite a simple matter to interest you chil- dren in plants and their lives, if always it were possible to talk only about the things which you can see with your own unaided eyes. I think a bright child sees better than many a grown person, and I think that it is easier to interest him in what he sees. And then plants in themselves are so interesting and surprising, that one must be stupid indeed if he or she finds it impossible to take pleasure in watching their ways. But about these plants there are many things which you cannot see without the help of a microscope, and these things it is difficult to describe in simple words. Yet it is necessary to learn about them if you wish really to feel at home in this beautiful world of plants. After all, whatever is worth having is worth taking some trouble for; and nothing worth having can be had without trouble. So I hope when you children come to parts of this book that seem at first a little dull, you will say to yourselves, " Well, if we wish really to know plants, to be able to tell their names, to understand their habits, we must try to be a little patient when we come to the things that are difficult." For even in your games you boys have to use some patience ; and you are quite willing to run the risk of being hurt for the sake of a little fun. 139 And you girls will take no end of trouble if you happen to be sewing for your dolls, or playing at cooking over the kitchen stove, or doing something to which you give the name " play " instead of " work." I only ask for just as much patience in your study of plants ; and I think I can safely promise you that plants will prove delightful playthings long after you have put aside the games which please you now. So we must begin to talk about some of the things which you are not likely to see now with your own eyes, but which, when possible, I will show you by means of pictures, and which, when you are older, some of you may see with the help of a microscope. Every living thing is made up of one or more little objects called " cells." Usually a cell may be likened to a tiny bag which holds a bit of that material which is the most wonderful thing in the whole world, for this is the material which has life. Occasionally a cell is nothing but a naked bit of this wonderful substance, for it is not always held in a tiny bag. This picture (Fig. 135) shows you a naked plant cell, much magnified, that swims about in the water by means of the two long hairs which grow from one end of the speck of life-giving material. The next picture (Fig. 136) shows you a seed cut across, and so magnified that you can see plainly its many cells. In the middle portion of the seed the cells are six- 140 sided, and laid against one another in an orderly and beautiful fashion, while the outer ones are mostly round. All animals, we ourselves, all plants, began life as a single cell. Sometimes a cell will spend its life alone. When the time comes for it to add to the life of the world, it divides into two or more "daughter cells," as they are called. These break away from one another, and in like manner divide again. But usually the single cell which marks the beginning of a new life adds to itself other cells; that is, the different cells do not break away from one another, but all cling to- gether, and so build up the perfect plant or animal. By just such additions the great- est tree in the forest grew from a single tiny cell. By just such additions you children have grown to be what you are, and in the same way you will con- tinue to grow. Every living thing must eat and breathe, and so all living cells must have food and air. These they take in through their delicate cell walls. The power to do this comes from the bit of living substance which lies within these walls. This strange, wonderful material within the little cell is what is alive in every man and woman, in every boy and girl, in every living thing, whether plant or animal. Fig. 136 141 We know this much about it. and not the wisest man that ever lived knows much more. For though the wise men know just what things go to make up this material, and though they themselves can put together these same things, they can no more make life, or understand the making of it, than can you or I. But when we get a good hold of the idea that this material is contained in all living things, then we begin to feel this ; we begin to feel that men and women, boys and girls, big animals and little insects, trees and flowers, wayside weeds and grasses, the ferns and rushes of the forest, the gray lichens of the cliffs and fences, the seaweeds that sway in the green rock pools, and living things so tiny that our eyes must fail to see them, — that all these are bound into one by the tie of that strange and wonderful thing called life; that they are all different expressions of one mysterious, magnifi- cent idea. While writing that last sentence, I almost forgot that I was writing for boys and girls, or indeed for any one but myself; and I am afraid that perhaps you have very little idea of what I am talking about. But I will not cross it out. Why not, do you suppose ? Because I feel almost sure that here and there among you is a girl or boy who will get just a little glimmering idea of what I mean ; and perhaps as the years go by, that glimmer will change into a light so bright and clear as to become a help in dark places. But the thought that I hope each one of you will carry home is this, — that because this strange something 142 found in your body is also found in every other living thing, you may learn to feel that you are in a way a sister or brother, not only to all other boys and girls, but to all the animals and to every plant about you. 3XXC HOW A PLANT IS BUILT NOW we know that the plant, like yourself, began life as a single cell ; and we know that the perfect plant was built up by the power which this cell had of giving birth to other cells with like power. Suppose that a brick were laid upon the earth as the foundation of a wall ; and suppose that this brick were able to change into two bricks. Suppose that the new brick were able to form another brick in the same man- ner, and that this power should pass from brick to brick ; and suppose that all these bricks were able to arrange themselves one upon another in an orderly fashion, so that they could not easily be moved from their places. Now, if you can see this brick wall growing up, you can see something of how the cells of a plant grow up and arrange themselves. But though it is fairly easy to see how the plant cells form one from another, that does not explain how they come to make a plant, with its many different parts, with its root and stem, its branches, leaves, and flowers. One thing can divide and make two things of the H3 same sort; but it is not easy to see how it can make things that are quite different from itself. Now, if this difficulty as to the building-up of plants and animals has come into your minds, you are only puzzled by what has puzzled hundreds of people before you; and all these hundreds of people have found the puzzle quite as impossible to solve as the king's horses and the king's men found it impossible to put Humpty Dumpty together again. A good many questions that we cannot answer come into our minds; but if we look honestly for the answers and do not find them, then we can be pretty sure that for the present it is safe to leave them unanswered. As cell is added to cell in the building-up of plant life, some wonderful power forces each new cell to do the special work which is most needed by the growing plant. Sometimes this new cell is needed to help do the work of a root, and so it begins to do this work, and be- comes part of the root ; or else it is needed to do stem work, and goes to make up the stem, or leaf work, and is turned over into the leaf. A healthy cell is born with the power to do whatever is most needed. HOW A PLANT'S FOOD IS COOKED SOME time ago we learned that the little root hairs, by means of their acid, are able to make a sort of broth from the earthy materials which they could not swallow in a solid state. 144 But before this broth is really quite fit for plant food, it needs even more preparation. Why do we eat and drink, do you suppose ? " Because we are hungry." That is the direct rea- son, of course. But we are made hungry so that we shall be forced to eat ; for when we eat, we take into our bodies the material that is needed to build them up, — to feed the cells which make the flesh and bone and muscle. And this is just why the plant eats and drinks. It needs constantly fresh nourishment for its little cells, so that these can live, and grow strong enough to make the new cells which go to form, not bone and flesh and muscle, as with you children, but fresh roots and stem and leaves and flowers and fruits. If these little cells were not fed, they would die, and the plant would cease to live also. And now what do you think happens to the broth that has been taken in from the earth by the root hairs ? As we have said, this broth needs a little more prep- aration before it is quite fit for plant food. What it really wants is some cooking. Perhaps you can guess that the great fire before which all plant food is cooked is the sun. But how are the hot rays of the sun to pierce the earth, and reach the broth which is buried in the plant's root ? Of course, if it remains in the root, the earth broth will not get the needed cooking. It must be carried to some more get-at-able position. 145 Now, what part of a plant is usually best fitted to receive the sun's rays ? Its leaves, to be sure. The thin, flat leaf blades are spread out on all sides, so that they fairly bathe them- selves in sunshine. So if the broth is to be cooked in the sun, up to the leaves it must be carried. And how is this managed ? Water does not run uphill, as you know. Yet this watery broth must mount the stem before it can enter the leaves. Water does not run uphill ordinarily, it is true ; yet, if you dip a towel in a basin of water, the water rises along the threads, and the towel is wet far above the level of the basin. And if you dip the lower end of a lump of sugar in a cup of coffee, the coffee rises in the lump, and stains it brown. And the oil in the lamp mounts high into the wick. Perhaps when you are older you will be able some- what to understand the reason of this rise of liquid in the towel, in the lump of sugar, in the lamp wick. The same reason accounts partly for the rise of the broth in the stem. But it is thought that the force which sends the oil up the wick would not send the water far up the stem. And you know that some stems are very tall indeed. The distance, for example, to be traveled by water or broth which is sucked in by the roots of an oak tree, and which must reach the top- most leaves of the oak, is very great. Yet the earth broth seems to have no difficulty in making this long, steep climb. dana's plants. — 10 146 Now, even wise men have to do some guessing about this matter, and I fear you will find it a little hard to understand. But it is believed that the roots drink in the earth broth so eagerly and so quickly, that before they know it they are full to overflowing. It is easier, however, to enter a root than it is to leave it by the same door ; and the result is, that the broth is forced upward into the stem by the pressure of more water or broth behind. Of course, if the stem and branches and leaves above are already full of liquid, unless they have some way of disposing of the supply on hand, they cannot take in any more ; and the roots below would then be forced to stop drinking, for when a thing is already quite full to overflowing, it cannot be made to hold more. But leaves have a habit of getting rid of what they do not need. When the watery broth is cooked in the sun, the heat of the sun's rays causes the water to pass off through the little leaf mouths. Thus the broth is made fit for plant food, and at the same time room is provided for fresh supplies from the root. If you should examine the lower side of a leaf through a microscope, you would find hundreds and thousands of tiny mouths, looking like the little mouths in this picture (Fig- I37> Some of the water from the earth broth is constantly passing through these mouths out of the plant, into the air. Fig. j 37 *47 A STEEP CLIMB IT is all very well, you may think, to say that the pressure from the root sends the water up through the stem ; but when we cut across such a stem as a tree trunk, one finds it full of wood, with a little tightly packed soft stuff in the center, and not hollow like a water pipe, as one would suppose from all that has been said about the way the water rises in the stem. No, a stem is not a hollow pipe, or even a bunch of hollow pipes, it is true ; and it does seem something of a question, how the water can force its way through all this wood; and even if one hears how it is done, it is not an easy thing to make clear either to grown people or to children. But I will see what I can do; and I know that you really love these plants and trees, and will try to be a little patient with them and with me. The water, or liquid, when it mounts a stem or tree trunk, takes a path that leads through the new-made cells. Each young cell wall is made of such delicate material that it allows the water, or broth, to filter through it, just as it would pass through a piece of thin cloth. And so it makes its way from cell to cell, along the stem, more slowly than if it were passing through a hollow tube, but almost as surely. It is true, the earth broth does not reach the leaves above without having given up something to the little cells along the road. These seem to lay hold of what they specially need for their support, while the rest is allowed to pass on. I want your teacher to prove to you by a little experi- ment that water makes its way up a stem. 148 If she will place in colored water the stem of a large white tulip, cutting off its lower end under the liquid, those parts whose little cells are in closest connection with the stem will soon begin to change color, taking the red or blue of the water ; for a freshly cut stem has the same power as the root to suck in water eagerly and quickly. HOW A PLANT PERSPIRES WE cannot see the water as it passes from the tiny leaf mouths into the air. Neither can we see the water that is being constantly carried from the sur- face of our bodies into the air. But if we breathe against a window pane, the scattered water in our breath is collected by the cold of the glass in a little cloud; and if we place the warm palms of our hands against this window pane, in the same way the cold collects the water that is passing from the little mouths in our skin, and shows it to us as a cloud on the glass. Heat scatters water so that we cannot see it, any more than we can see the lump of sugar when its little grains are scattered in hot water; but cold gathers together the water drops so that we are able to see them. This is why you can " see your breath," as you say, on a cold day. The cold outside air gathers together the water which was scattered by the heat of your body. If you place against the window pane the under side of the leaves of a growing plant, the water passing from the tiny leaf mouths collects on the glass in just 149 such a damp cloud as is made by the moist palms of your warm hands. When water passes from your hands, you say that you are perspiring ; and when water passes away from the plant, we can say that the plant perspires. Some plants perspire more freely than others. A sunflower plant has been known to give off more than three tumblers of water a day by this act of perspiration. There is a tree, called the Eucalyptus, whose leaves perspire so freely that it is planted in swampy places in order to drain away the water. Of course, the more quickly the leaves throw off water, the faster the fresh supply pushes up the stem. If the leaves do their work more quickly than the roots make good the loss, then the plant wilts. When a leaf is broken from a plant, it soon fades. Its water supply being cut off, it has no way of making good the loss through the leaf mouths. Just as the air in a balloon keeps its walls firm, so the water in the leaf cells keeps the cell walls firm. As a balloon collapses if you prick it with a pin, and let out the air, so the cell walls collapse when the cells lose their water ; and when the cell walls of a leaf col- lapse, the leaf itself collapses. >X*c HOW A PLANT STORES ITS FOOD WE see that the water is drawn away from the earth broth into the air by the heat of the sun, just as water is drawn from the broth we place on the ISO Hi stove by the heat of the fire ; and that when this has happened, the plant's food is cooked, arid is in condition to be eaten. But this broth does not lose all its water. There is still enough left to carry it back through the leaf into the branches and stem, and even down into .the root once more. : In fact, the prepared food is now sent to just those parts of the plant which most need it. Perhaps it is laid up beneath the bark, to help make new buds which will burst into leaf and flower another year. Or perhaps it goes down to help the roots put out new branches and fresh root hairs. Or possibly it is stowed away in such an underground stem as that of the lily, or the crocus bulb, and is saved for next year's food. Once in a while some of this prepared food is stored in the leaf itself. When a leaf is thick and juicy ("fleshy," the books call it), we can guess that it is full of plant food. Do you recall the Bryopliyllum, — the plant we talke^ about a few days ago ? Its wonderful leaves, you re- member, gave birth to a whole colony of new plants. You may be sure that these leaves had refused to give up all the food sent to them for cooking in the sun. You can guess this from their thick, fleshy look, and you can be sure of this when you see the baby plants spring from their edges ; for without plenty of nourishment stored away, these leaves could never man- age to support such a quantity of young ones. i5i LEAF GREEN AND SUNBEAM BUT the earth broth which the roots supply is not the only article of importance in the plant's bill of fare. The air about us holds one thing that every plant needs as food. This air is a mixture of several things. Just as the tea we drink is a mixture of tea and water, and milk and sugar, so the air is a mixture of oxygen and nitro- gen, and water and carbonic-acid gas. Oxygen, nitrogen, and carbonic-acid gas, — each one of these three things that help to make the air is what we call a gas, and one of these gases is made of two things. Carbonic-acid gas is made of oxygen and carbon. Now, carbon is the food which is needed by every plant. But the carbon in the air is held tightly in the grasp of the oxygen, with which it makes the gas called carbonic-acid gas. To get possession of this carbon, the plant must contrive to break up the gas, and then to seize and keep by force the carbon. This seems like a rather difficult performance, does it not ? For when a gas is made of two different things, you can be pretty sure that these keep a firm hold on each other, and that it is not altogether easy to tear them apart. Now, how does the plant meet this difficulty ? You cannot guess by yourselves how this is done, so I must tell you the whole story. 152 Certain cells in the plant are trained from birth for this special work, — the work of getting possession of the carbon needed for plant food. These little cells take in the carbonic-acid gas from the air ; then they break it up, tearing the carbon from the close embrace of the oxygen, pushing the oxygen back into the air it came from, and turning the carbon over to the plant to be stored away till needed as food. Only certain cells can do this special piece of work. Only the cells which hold the green substance that colors the leaf can tear apart carbonic-acid gas. Every little cell which holds a bit of this leaf green devotes itself to separating the carbon from the oxygen. Why this special power lies in a tiny speck of leaf green we do not know. We only know that a cell without such an occupant is quite unable to break up carbonic-acid gas. But even the bit of leaf green in a tiny cell needs some help in its task. What aid does it call in, do you suppose, when it works to wrench apart the gas ? In this work the partner of the bit of leaf green is nothing more or less than a sunbeam. Without the aid of a sunbeam, the imprisoned leaf green is as helpless to steal the carbon as you or I would be. It sounds a good deal like a fairy story, does it not, — this story of Leaf Green and Sunbeam? Charcoal is made of carbon. About one half of every plant is carbon. The coal we burn in our fireplaces is the carbon left upon the earth by plants that lived and died thousands of years ago. It is the carbon that Leaf Green and 153 Sunbeam together stole from the air, and turned over into the plant. If one looks at a piece of coal with the eyes which one keeps for the little picture gallery all children carry in their heads, one sees more than just a shining, black lump. One sees a plant that grew upon the earth thousands of years ago, with its bright green leaves dancing in the sunlight ; for without those green leaves and that sunlight, there could be no coal for burning to-day. And when we light our coal fire, what we really do is to set free the sunbeams that worked, their way so long ago into the plant cells. It is more like a fairy story than ever. Sunbeam is the noble knight who fought his way into the cell where Leaf Green lay imprisoned, doomed to perform a task which was beyond her power. But with the aid of the noble Sunbeam, she did this piece of work, and then both fell asleep, and slept for a thousand years. Awakening at last, together they made their joyful escape in the flame that leaps from out the black coal. In truth, a sunbeam and a flame are not so unlike as to make this story as improbable as many others that we read. And because I have told it to you in the shape of a fairy story, you must not think it is not true. It is indeed true. Everywhere in the sunshiny woods and fields of summer, the story of Leaf Green and Sunbeam is being lived. But when the day is cloudy or the sun sets, then there is no Sunbeam to help the Princess, and then no carbon is stolen from the air. 154 PLANT OR ANIMAL? DID you ever stop to ask yourself, "What is the difference between a plant and an animal ? " because this is the place where that question should be answered. " Why, an animal is altogether different from a plant," you answer, perhaps a little scornfully. " I have no trouble in telling which is which." It is very natural that you should feel this way. A cow or a horse, for example, is not at all like a tree ; and when you think of animals, you think of the ones you know best, and likewise of plants. But wise men have discovered plants that look and act so much like animals, and animals that look and act so much like plants, that at one time they say, " Now, these are animals, surely," and a little later exclaim, "No, after all, these are plants;" and they take a long time to make up their minds as to whether certain objects are plants or animals. And already even you children have discovered that the plants you know best belong to families, and have children, and care for them in a very motherly fashion ; that they drink earth food with their roots, and eat carbon food with their leaves ; and soon you will find that they do many other things which once upon a time you would have thought it a great joke to be told a plant could do. You remember my telling you of one little plant cell that could swim ; and there are some animals, 155 you know, that are rooted to one spot as we usually think only a plant is rooted. What, then, is the difference between a plant and an animal ? Leaf Green and Sunbeam between them put life into what had no life before ; and the living plant matter, which they help to make, is that which animals cannot make themselves, yet which they cannot live without, for this living matter is absolutely necessary to them as food. And the one real difference between a plant and an animal is this, — a plant can make out of certain dead substances the living matter that all animals must have for food ; an animal cannot do this. 56 HOW WE ARE HELPED BY LEAF GREEN AND SUNBEAM THE cell in which Leaf Green lives has no little mouths such as we saw in the picture some time ago. Its walls are so delicate that the carbonic-acid gas passes through them quite easily, — as easily as the gas escaping from an unlighted jet in the schoolroom could pass to your nose even if you wore a veil, or as easily as water would pass through a piece of muslin. But between Leaf Green's cell and the outer air are other cells, — those which make up the outer covering or skin of the leaf. These are arranged so as to form the openings or mouths about which we have read. By means of these mouths the gas makes its way through the leaf's thick skin. The plant needs as food the carbon in this gas, and so keeps fast hold of it ; but the oxygen is not needed for this purpose, and so it is pushed back into the air. Now, we learned in the last chapter of one very great service rendered to animals by plants. We learned that plants took carbon from the air, and turned this into food for animals. But there is still another way in which plants serve animals. And once more it is the work of Leaf Green and Sunbeam that is of such importance to us ; for when they take hold of the carbon, making it into living food for man and beast, they take from the air i57 the gas that is poisonous, and send back into the air the gas which gives life and health. This poisonous gas which they lay hold of, you re- member, is carbonic-acid gas ; and carbonic-acid gas is what we animals send out of our bodies with every breath, for it is the part of the air which poisons us. When the schoolroom is so close that our heads ache, it is because so many children have been breathing out this gas, and we are forced to take it back into our bodies again. But when this gas is stolen by the plant, and robbed of its carbon, it is no longer carbonic-acid gas. Noth- ing of it is left but the oxygen which is pushed out through the cell walls ; and this oxygen is as good to breathe as the other gas (carbon and oxygen mixed) is bad. So the plant finds good what we find poisonous. It takes in and keeps that which hurts us (the carbon), and sends out that which helps us (the oxygen). So you see that our lives depend on the lives of plants in two ways : — i. The plants give us the food we need for life. 2. The plants take from the air the gas that poisons us, and give to the air the gas which we need for life and health. And in both cases it is Leaf Green and Sunbeam who are making life possible for us. Remember the great services of these two fairies when next you pass a green tree which is bathing itself in sunshine. 153 HOW A PLANT BREATHES PERHAPS you have heard people say that it is not good to sleep in a room with plants. They say this, because they have heard that at night the plant does not give out oxygen, but that it does give out the poisonous carbonic-acid gas. Now, you children know that part of this statement is true. You know that the plant cannot give out oxygen at night, because at that time there is no Sunbeam about to help Leaf Green tear apart carbonic-acid gas and send the oxygen back into the air. But how about the other part of the statement ? Is it true that at night plants give out the poisonous carbonic-acid gas ? Both day and night, plants give out carbonic-acid gas ; for though plants, save in the sunlight, cannot eat by means of their little green cells, they can breathe through the tiny mouths (Fig. 137) on the under side of the leaf by night as well as by day. And when either a plant or an animal breathes, it takes the life-giving oxygen from out the air mixture, and keeps it for its own use. But poisonous carbonic- acid gas is sent back into the air. Now, the question is, whether a plant does most good or most harm to the air by taking in and sending out the different gases. Of course, it does good when it lets the oxygen out through its cell walls, and stores away the carbon within itself ; and it may seem to do harm when through its 159 leaf mouths it breathes in oxygen and breathes out carbonic-acid gas. There is only one key to unlock the matter, and that is this, — to find out whether the plant does most towards poisoning or towards purifying the air. And that has been found out already. Wise men say that Leaf Green and Sunbeam do much more good to the air than the little breathing mouths do harm. The two good fairies take away a great deal of poison, and send back a great deal of the helpful oxygen ; while the tiny mouths neither rob the air of much oxygen nor give it much poison. In- deed, the harm they do is so small compared with the great good accomplished by Leaf Green and Sunbeam, that even at night you need not worry at the thought that you have plants in your room. Perhaps you wonder that a plant does these two things that are so exactly opposite to each other. But a plant must breathe as well as eat ; for when it breathes, it takes in the precious oxygen which is just as necessary to its life as to ours. In summer, by the dusty roadside, you see plants almost white with dust, looking quite ill and lifeless. And they are both ill and lifeless ; for their little leaf throats are so choked that they cannot breathe in the oxygen they need, and in consequence they are being slowly suffocated. i6o THE DILIGENT TREE NOW we have learned three things about plants, and especially about leaves. We have learned — i. That they perspire. 2. That they eat and drink. 3. That they breathe. They perspire when the water passes through the leaf mouths into the air. They eat when Leaf Green and Sunbeam together manage to take the carbon out of the carbonic-acid gas which has made its entrance through the leaf mouth and the cell wall. They drink when the roots suck in water and earth broth. They breathe when the leaf mouths take from the air the oxygen, and give back to it carbonic-acid gas. The veins and veinlets, of which you see so many running through a leaf, act in something the same way as the water pipes of a city ; for through these veins the watery food, the earth broth, is carried to the dif- ferent cells. When one knows all that we know even now about a plant, one looks at a tree covered with leaves with a good deal, of admiration. Just think of what is being done inside that quiet- looking tree ! Think of the millions of cells that go to make it up, each cell having its own work to do ! Think of the immense amount of business being carried on within the trunk, inside the branches, and especially in each green leaf ! And when you have the i6i chance, notice how hard each leaf tries to get just as much sun and air as it possibly can. In the first place, the thin, flat leaf blades are so spread out that every part is exposed to the light and air. Then notice how the leaves are placed in reference to one another. Almost every single one is fastened to the tree so as to get its fair share of sunshine. When you think of the many thousands of leaves borne by one tree, it astonishes you to see how seldom one leaf gets in another's light. And the shapes of leaves are always suited to their arrangement on the tree. If you should take the leaves of a chestnut tree and replace them by the leaves of a maple, you would find the maple leaves all getting in each other's way, or else you would see that they were taking up a great deal more room than necessary. But when a leaf is studied on its own tree, one sees that its shape is the very best that could be imagined for its position. And in the smaller plants we notice this same thing. And when you remember that Leaf Green cannot feed the plant unless Sunbeam comes to her assistance, you realize how necessary it is that each leaf be within the reach of Sunbeam's visits. DANA'S PLANTS. — 1 1 162 LEAVES AND ROOTS YOU will be surprised to learn that the way in which a plant's leaves grow tells us something of the way in which its roots grow. Many of you have been overtaken far from home in a rainstorm, and have sought shelter under a spreading tree. The ground directly beneath the tree has kept almost dry even after some hours of rain, but the earth just under the tips of the spreading branches got very wet: for the great tree acted like a large umbrella; and when the raindrops fell upon the smooth leaves, which sloped outward and downward, they rolled from leaf to leaf till they reached the very lowest, outermost leaves of all. From these they fell to the ground, just as the drops that gather upon your umbrella run out- ward and downward to the umbrella's edge, and then off upon the ground. So you can see that the circle of earth which marks the spread of the branches above must be specially wet, as it received a great part of the rain which fell upon the whole tree. And whenever you see a tree which sheds the rain water in such a circle, you can be pretty sure that, if you should dig into the earth a ditch which followed this circle, you would soon reach the tips of the new root branches of the tree. You know that the root does the drinking for the plant ; and only the newest parts of the root, the fresh root tips, are really good for work of this sort. You 163 remember that the earth food is carried up the stem to the leaves in a watery broth ; and that if the water supply should give out, the new plant cells would not get the broth which helps them to grow, and to put out other cells, and so to build up the plant. Now, as only the new root branches, near their tips, are able to drink, if the water should leak through the earth in equal quantities everywhere, much of it would be wasted ; but when this water is collected in certain spots within reach of the new root branches, there is good reason to believe that these will be able to satisfy their thirst. By the shedding of the rain from the tips of the spreading branches above, the water is collected in a ring, and so sinks into the earth ; and the root branches below spread out in just the same direction as the tree branches above, till they find what they need, and drink their fill. So by the way in which a tree sheds the rain, you can tell just where its root branches reach out under- ground. In smaller plants you see much the same thing. Fig. 138 shows a plant called the Caladium. You can see that the raindrops must roll outward down these 164 leaves, and fall upon the earth just above the tips of the root branches. Fig. 139 shows you the rhubarb plant. This has quite a different sort of root. Now, if the rhu- barb leaves were like those of the Caladium, unless the rhubarb root - branches changed their direction, these root-branches would grow very thirsty indeed. But as it is, the water pours down these leaves toward the center of the plant, and reaches the ground almost directly over the straight, fleshy root, with its downward-growing branches ; and we see that these root- branches are watered by the leaves above just as carefully as are those of the Caladium. By knowing one thing about a plant, often you can guess that another thing is so. You understand now that when the leaves of a plant shed rain water after the fashion of the Caladium, the chances are that its root-branches spread out as far as the drip of the water; and that the root of the rhubarb points almost straight downward, is told you by the drip of water from the rhubarb leaves. Fig. 139 i6< LEAF VEINS SOME time ago you learned that from the stem of a plant you could guess the number of seed leaves which it brought into the world, and that in the same way from the seed leaves you could guess what kind of a stem it would build up. From the way in which a leaf is veined you can guess both of these things. You can guess what sort of a stem belongs to the plant, and with how many seed leaves it began life. When the little veins run in and out, form- k ing a sort of network, we say that h\ the leaf is " net-veined Fig. 140 ^liiiWll'.,»f,iw^, jfuiUft, Fig. 142 These leaves of the quince (Fig. 140), the maple 1 Fi< 141), and the basswood (Fig. 142) are all net-veined. 1 66 Net-veined leaves are borne by plants which brought into the world more than one seed leaf; and with the net-veined leaf we can expect to find that stem which comes with more than one seed leaf, — a stem where the skin or bark, the woody rings, and the soft central pith, are clearly separated one from another. But a leaf such as that in Fig. 143 or that in Fig. 144, where the veins do not branch off in a network, but run in unbroken lines side by side, — such leaves as these tell you that they are borne by plants which started life with only one seed leaf, and which have such a stem as the corn- stalk, where you see no woody rings or central pith. These leaves are called "parallel-veined." I fear that you find all this a little diffi- cult to understand and to remember ; but if you read it patiently, when you study the botany for older children, I think it will come back to you and make your lessons easier. Fig. 143 Fig. 144 LEAF SHAPES AS I told you before, we should notice al ways the shape of a leaf. It is much easier to describe some new plant we have met on our walks if we remember the shape of its leaves. Next summer I hope you will make collection of leaves, pressing and keeping them. I think you will be amazed at their great variety in shape. Some you find long and narrow, others almost round. Some f s~-^\ are arrow - shaped, (,/^/W^ others star - shaped, / /^^ others needle-shaped ^yp (Fig. 145). Some are three-pointed like the maple leaf (Fig. 146); others deeply- parted, like the oak leaf (Fig. i47> 167 Fig. 145 Fig. 146 1 68 Fig. 147 Sometimes a large leaf is cut up into several little leaves. These little leaves are called " leaflets." The clover leaf (Fig. 148) has three leaflets. The locust leaf (Fig. 149) is cut into a great many leaflets. The edge of one leaf (Fig. 150) is smooth, while that of another is cut into Fig. 148 little teeth (Fig. 1 5 1) like the teeth of a saw. I should like to know how many of you children, without looking even at a picture save such as you carry in that little gallery in your head, could describe cor- rectly the shapes of some of our common leaves. I should like to ask you to draw on the blackboard the rough outlines of any leaves Fig. 149 Fig. 150 Fig. 151 that you remember. If you think you could not do this, will you not try, when next you see a leaf, to carry off in your mind such a pic- ture of it as to enable you to outline i6g it on the blackboard when you go back to the school- room ? Really it does not take any more time to see a thing correctly than to see it incorrectly. It takes a little more sense, that is all. It takes some sense to give even one minute oi honest thought to the thing you are looking at. You know some children who never seem to have all their thoughts in one place at a time, and who in consequence never see anything really well. It is better to stop doing a thing altogether than to do it in a foolish sort of way ; and it is foolish to start to do even the smallest thing, and yet not do it. The child who looks at even a leaf in a way to make it possible for him to draw the outline of that leaf five minutes later, is likely to be the child who goes in for both work and play with all his heart, and who comes out as far ahead on the playground as he does in the schoolroom. Now, after that lecture, which some of you need badly enough (and which I will tell you, as a great secret, I need not a little myself), I want to point out a few more of the things that are worth noticing in a leaf. But perhaps it is better to save them for another chapter. 170 HAIRY LEAVES NOTICE always whether a leaf is smooth or hairy. Do you remember the mullein that sends up its tall spires over the hill pasture ? The grayish leaves of this mullein are so hairy that they feel almost like wool. What is the use of all this hair ? It is not likely that a plant would wrap itself in this hairy coat except for some good reason. It is believed that this coating of the mullein pre- vents animals from eating the leaves, and so destroy- ing the plant. In the mouth, these hairs slip from the leaf blade, and cause a most unpleasant sensation. But usually the hairs on a leaf are helpful because they prevent too much perspiration or giving-off of water. The more freely the hot sun beats upon a leaf, the more quickly the water is drawn away from it. You can see just how this is by hanging a wet towel in front of the fire. In a very short time the heat from the burning coals draws the water from the towel. But put a screen between the fire and the towel, and the water passes off more slowly. Now, the hairs on that side of the leaf which faces the sun act as a screen from its fierce heat. We have learned how important it is that the leaf should not part with its water more quickly than the roots can make up the loss. We know that when a leaf does this, it wilts just as a leaf wilts when it is picked and cut off from its water supply, on account of the col- lapse of the walls of the many little cells which are emptied of water. So you can understand that plants which grow in dry, sunny places, where there is little drinking water for the roots, and where the sun beats constantly on the leaves, must take every care that there is no waste of water. And if you keep your eyes open, you will discover that many of the plants which grow in such places screen themselves from the full heat of the sun by a coat of hairs. The plant called "life everlasting" is one which grows in dry, open, sunny places. It clothes its leaves with silky hairs, and so prevents them from throw- ing off too quickly the small amount of water its roots are able to provide. Without this silky coat, the sun would suck its leaves quite dry of water. Sometimes a leaf has only a few of the little leaf mouths through which most of the water passes. As these mouths are wide open only in the sunlight, and as often the rest of the leaf is covered with a thick skin which prevents the water from slipping away (as a little of it nearly always does) through the cell walls, such a leaf will hold its water supply and keep fresh for a long time. Such leaves as these we find on what we call "evergreen" plants. The pines and hemlocks which light up the woods all winter have these thick- skinned, few-mouthed leaves, which throw off so little water that even when the ground is frozen hard, and gives no drinking water to the roots, they are able to keep fresh by the careful way in which each one hoards its own little supply. 172 WOOLLY AND "DUSTY" LEAVES CURIOUSLY enough, some plants put on a hairy coat for just the opposite reason from the one which makes life everlasting clothe itself in that fashion. Life everlasting fears lest its leaves throw off their water, or perspire too quickly. Down by the stream that runs through the meadow grow great clusters of the pink-flowered steeple bush. If you look at the lower sides of the leaves of the steeple bush, you see that they are very woolly. As this wool is not between the sun and the leaf blade, it cannot be meant to protect the leaves from the heat of the sun ; and indeed in this wet meadow, close to the river, never mind how quickly the leaves throw off their water, the roots can have no difficulty in finding close by more than enough to make good the loss. No, the fact is that these leaves need to throw off water very freely indeed to make room for the ever-fresh supply that is pushing up the stem, and their woolly covering is intended to help them do this very thing. Its object is to aid perspiration. In swampy places the moisture rises every night from the wet ground, and settles on the plants about. The little mouths on the under surfaces of the leaves of the steeple bush would soon be clogged with the mois- ture rising from below, if they were not protected in some way ; and if they became so clogged, they could not throw off the water with which the whole plant is charged. Thus, by having this thick coat of hair, the water that otherwise would cling to the outer surface of the leaf blade is kept at a distance from the little mouths, and these are not interrupted in the per- formance of a duty so necessary to the health of the plant. This same habit of coating its lower leaf surfaces with hair, you notice in the speckled or swamp alder, a shrub which grows also in wet places, and therefore runs the same risk of having its leaf mouths clogged with water. So when you see only the upper surface of a leaf covered with hair, you can guess that the object of the plant is to prevent too much perspiration ; but when you see only its lower side clothed in this same way, you can guess that the plant fears too little perspiration. Sometimes you find a plant with leaves which have a coating of what looks almost like dust on one or both of their surfaces. This dust we call " bloom." We see it in apples and grapes, as well as on leaves. It is made up of a waxy material which is put forth by the plant just as it puts forth hair. This bloom the plant uses also as a help to free perspiration. By thus clothing its leaves it shields the little mouths from water clogging ; and so you can be sure that the little mouths have not been filled with water, and thus prevented from doing their work. The cabbage leaf has mouths on both of its surfaces, and so both sides are covered with this protecting bloom. If you dip a cabbage leaf in water and then shake it, the drops roll off and leave it quite dry. , PRICKLES AND POISON LEAVES need to ._ < protect themselves from other enemies than too great heat and too much water. We found that the prickly armor of the thistle enabled it to live in pastures where the cattle had killed most of the other plants. Many animals like to eat green leaves, so we are not surprised to find that plants invent different ways of protecting themselves. One look at the leaf of the thistle is enough to persuade us that it would not be very good eat- ing. The red-berried holly, with which we decorate our churches and .-^ \ ' mm w c^m/T in J 175 houses at Christmas time, is another plant with prickly leaves. Some plants cover their leaves with bristles, which the cattle dread almost as much as the stout prickles. As we read before, the mullein defends its leaves by a fuzzy coat of hair. Such an armor as this is less warlike than that of the thistle, but quite as effective. Other plants fill their leaves with juices which are either poisonous or unpleasant. It seems as if animals guessed the presence of these unfriendly juices by the plant's smell, for they will munch the different growing things all about such a plant as this, and leave the harmful leaves severely alone. The nettles cover their leaves with stinging hairs. These stiff hairs break off when handled, burying them- selves in the flesh, and sending out a burning acid that punishes severely the meddler, man or beast, as it may happen to be. By this time I think you realize that leaves are well worth noticing. And when you have looked at a leaf so fully as to be able to carry in your mind its outline, I hope you will then discover whether it wears a coat of hair, or a dusty bloom, or a prickly armor, or a thick, evergreen skin, and that you will decide what enemies it is trying to escape. I ;6 The pitcher plant lives places, such as the shaded the marsh down by th< On account of i it is brought to SOME CRUEL TRAPS HAVE you ever seen a leaf like the one in this picture (Fig. 152)? It is shaped something like a pitcher ; and the plant on which it grows has been named the "pitcher plant." in low, wet swamp, or fj lake. curious leaves the cities, and is treet corners or at : comes the great tcher plant. Some- times this is a dull red ; again it is a delicate pink Fig. 152 or perhaps a light green ; and it has a faint, pleasant fragrance. Next June I hope that some of you children will find these beautiful flowers and these curious leaves. Why should a leaf be shaped like a pitcher, do you suppose ? These leaves are not only pitcher-like in shape, but also in their way of holding water; for if you succeed in discovering a settlement of pitcher plants, you will find that nearly every pitcher is partly filled with rain water. Usually this water is far from clear. It ap- pears to hold the remains of drowned insects ; and sometimes the odor arising from a collection of these pitcher plants is not exactly pleasant. 177 Perhaps you wonder how it happens that dead insects are found in every one of these pitchers ; and possibly you will be surprised to learn that apparently these curious leaves are built for the express purpose of capturing insects. It is easy to understand that these odd leaves are not so well fitted as more simple ones to cook the plant's food in the sun, or to take carbon from the air ; but if they are unfitted to provide and prepare ordinary food, possibly they are designed to secure food that is extraordinary. It seems likely that the pitcher plant is not content to live, like other plants, upon the simple food that is taken in from the earth and from the air. We are led to believe that it wishes something more substantial ; that it needs a meat diet ; and that to secure this, it teaches its leaves to capture flies and insects in order that it may suck in their juices. These leaves are veined in a curious and striking fashion. The bright-colored veins mav convince the insects of the presence of the sweet nectar in which they delight. At all events, in some way they are tempted to enter the hollow leaf ; and, once they have crawled or tumbled down its slippery inner surface, they find it impossible to crawl back again, owing to the stiff hairs, pointing downward, which line the upper part of the pitcher. Even if they have wings, it is difficult for them to fly upward in so straight a line as would be necessary to effect their escape. When tired out in their efforts to get out of this cruel dana's plants. — 12 1 7 8 trap, they fall into the water at the bottom of the pitcher, and are drowned. Their bodies decay and dis- solve; and it is thought that this solution is taken in by the leaf, and turned over to the plant as food. It is just the old, sad story of the spider and the fly, you see, only now it is the pitcher and the fly. But be sure to examine one of these pitchers if you possibly can, and then you will understand better how the whole thing is managed. The leaf in this picture (Fig. 153) for it is a leaf, you cannot find in our North American swamps. It grows on a plant called Nepenthes, a plant which lives in hot countries far from the United States. The leaf in the picture is full grown, and all ready for its work of trapping animals. Before it was old enough to do this, the lid which is now lifted was laid nicely across the opening to the pocket, and so prevented any unseason- able visits. Sometimes these pockets are so large as to be able to hold and to hide from sight a pigeon. They are gayly colored, and the rim around their border is covered with a sugary, tempting juice. So you can guess that the animals in search of nectar are not slow in accepting the invitation offered by color and sweets, and that some of these are imprudent enough to venture across the sticky edge. In this event they are pretty sure to lose their footing on the slippery inner surface of the pocket, 179 and to fall into the watery liquid with which it is filled. Even if they do not slip immediately, their efforts to crawl back over the rim are defeated by a row of teeth such as you see in the picture. The liquid at the bottom of the leaf is not rain water, as in the pitcher plant. It is given out by the leaf v& w ■"V I i _' mm ^?i Fig. 154 itself; and it contains an acid which dissolves the animals' bodies, so that their more nourishing parts can easily be taken in by certain little cells which line the lower part of the pocket, and which have been brought up to this work. The next picture (Fig. 154) shows you a water plant. It is called the "bladderwort," because of the little bags i8o or bladders which you see growing from the branches under water. The little bladders are traps set for water animals, which swim into them in their wish, perhaps, to escape some enemy. But they are quite unable to swim out again ; for the door into the bladder is trans- parent, and looks like an open entrance with a nice hiding place beyond. It opens easily from the outside, but is so arranged that it will not open from within. So when the poor little animal hurriedly swims into what seems to it a cozy resting spot, and draws a long breath of relief at getting safe inside, it is hopelessly caught, and must slowly starve to death, for there is no chance of escape. It may live for nearly a week in this prison ; but at last it dies. Its body decays, and is taken in as food by the cells set apart for that purpose. Strangely enough, though we ourselves do not hesi- tate to kill animals for food, and sometimes, I am sorry to say, for nothing but amusement, we give a little shiver of disgust when we find these plants doing the same thing. Some lines that came out in one of the magazines a few years ago express this feeling : — "What's this I hear About the new Carnivora? Can little plants Eat bugs and ants And gnats and flies ? A sort of retrograding! Surely the fare Of flowers is air, Or sunshine sweet. They shouldn't eat Or do auofht so deeradinof." i8i MORE CRUEL TRAPS ives THE plants about which we read in the last chapter do not take any active part in capturing insects. They set their traps, and then keep quiet. But there are plants which lay hold of their poor victims, and crush the life out of them in a way that seems almost uncanny. This leaf (Fig. 155) belongs to a plant which in North Carolina. It is called Venus's flytrap. You see that the upper, rounded part of the leaf is divided by a rib into two halves. From the edges of these rounded halves run out a number of long, sharp teeth; and three stout bris- tles stand out from the central part of each half. When an insect alights upon this horrible leaf, the two halves come suddenly together, and the teeth which fringe their edges are locked into one an- other like the fingers of clasped hands. The poor body that is caught in this cruel trap is crushed to pieces. Certain cells in the leaf then send out an acid in which it is dissolved, and other cells swallow the solution. After this performance the leaf remains closed for from one to three weeks. When finally it reopens, the insect's body has disappeared, and the trap is set and ready for another victim, Fig. 1 : 182 The next picture (Fig. 156) shows you a little plant which is very common in our swamps, — so common that some of you ought to find it without difficulty next summer, and try upon it some experiments of your own. It is called the "sundew." This name has been given to it because in the sun- shine its leaves look as though wet with dew. But the pretty drops which sparkle like dew do not seem so innocent when you know their object. You feel that they are no more pleasing than is the bit of cheese in the mouse trap. When you see this plant growing in the swamp among the cranberry vines and the pink orchids, you admire its little white flowers, and its round red-haired leaves, and think it a pretty, harmless thing. But bend down and pluck it up, root and all, out of the wet, black earth. Carry it home with you, and, if you have a magnifying glass, examine one of its leaves. The picture (Fig. 157) shows you a leaf much larger than it is in life. The red hairs look like pins stuck in a cushion, and the head of each pin glis- tens with the drop that looks like dew. But the ants and flies do not take these drops for dew. They believe Fig. 15; them to be the sweet nectar for which they long, and they climb or light upon the leaves in this belief. i83 And then what happens ? The next two pictures will show you (Figs. 158, 159) The red hairs close slowly but surely over the insect whose legs are already caught and held fast by the sticky drops it mistook for nectar, and they hold it imprisoned till it dies and its juices are sucked in by the leaf. I should like you to satisfy yourselves that these leaves act in the way I have de- scribed. But a bit of fresh meat will excite the red hairs to do their work quite as well as an insect, and I hope in your experiments you will be merciful as well as inquiring. So you see that the little sundew is quite as cruel in its way as the other insect- eating plants. But its gentle looks seem to have deceived the poet Swinburne, who won- ders how and what these little plants feel, whether like ourselves they love life and air and sunshine. Fig. ic8 Fig. 159 ; A little marsh-plant, yellow-green And tipped at lip with tender red. Tread close, and either way you tread, Some faint, black water jets between Lest you should bruise its curious head. " You call it sundew ; how it grows, If with its color it have breath. If life taste sweet to it, if death Pain its soft petal, no man knows. Man has no sight or sense that saith." 8 4 THE FALL OF THE LEAF YOU know that in autumn nearly all the leaves fall from the trees. To be sure, a few trees (such as the pines and hemlocks) and some plants (such as the laurel and wintergreen and partridge vine) do hold fast their leaves all winter ; but these are so few as com- pared with the many plants which lose their leaves, that they hardly count. Perhaps you never stopped to wonder why most plants get rid of their leaves before winter comes on ; but you feel pretty sure now that there is some good reason for a habit that is adopted by nearly all the plants that live in this part of the country. When we were talking about the way in which leaves defend themselves from different dangers, we found that evergreen leaves, the leaves which hold fast to the tree and keep fresh all winter, manage to keep their water safe inside their cells by wearing a very thick skin, and by not having too many little leaf mouths. For when a leaf has a thin skin and a great many mouths, its water leaks away very quickly. And if many such leaves should remain upon a plant into the winter, might it not happen that they would let off all its water at a time when its roots could not find any more in the frozen ground ? And thus might not the leaves kill the plant by draining it quite dry ? So you can see why it is well for most plants to shed their leaves before winter comes on and the root's drinking water is turned into ice. 185 But when a plant is about to shed its leaves, it takes care not to waste the precious food which they hold. This food it draws back into its stem and roots, laying it away in safe places beneath the buds which are to burst another year. It is this action on the part of the plant which changes the color of the leaves every fall. That mate- rial which makes them green is broken up, and part of it is taken away. That which is left is usually yellow or brown or reddish, and gives the leaves the beautiful colors we see in our October woods. So whenever you see the woods changing color, losing their fresh green and turning red and yellow, you can be sure that the trees have begun to prepare for winter. You know that they are stowing away their food in warmer, safer places than can be supplied by the delicate leaves. And when all the food has been drawn out of the leaves, and packed away in the right spots, then the plant finishes a piece of work it began some time before. This piece of work is the building-up of a row of little cells just where the leaf- stalk joins the stem or branch. When this row is com- plete, it acts almost like a knife, loosening the stalk from the stem. Then the leaf's life work is over; and with the first breeze, the emptv shell, which is all that is left, breaks away from the parent plant, and drifts earthward. Part VI — Flowers >**:< THE BUILDING PLAN OF THE CHERRY BLOSSOM ONE day your teacher brought to school a branch broken from the cherry tree. This she placed in water, standing the tumbler on the sunny window sill ; and now its buds have burst into a glory of white blossoms. To-day I want you to study the flower of the cherry ; for if you know all about this flower, which is put together in a rather simple way, one that is easy to study, it will not be so difficult for you to understand other, less simple flowers. You may wonder why I do not wait till the cherry tree outside is in blossom ; but if we waited till May, other flowers, which are not built on quite so simple a plan, would have come and gone, and you would not have been able to understand them so well as if you had first studied the simple make-up of the cherry blossom. Last fall we learned a little about this flower, but we had only its picture to help us in our work : so I think it well to begin all over again. 187 In looking at the cherry blossom (Fig. 160), we should first notice the green cup which holds the rest of the flower. This cup is divided into five green leaves. During the babyhood of the flower, when it was quite too young to face the cold, windy world, these green leaves were folded together so as to shut away from all harm its more delicate parts. Above this green cup we see a circle made up of five white leaves. These pretty leaves are spread outward as if they were quite proud of themselves, and eager to attract attention. And that is just what they are try- ing" to do ; for the cherry blossom is not wise enough to know that here in the schoolroom there are no bee visi- tors to bring it yellow dust, and to help it grow into a cherry. These leaves are the little handkerchiefs cherry tree, just like the apple tree we long ago, uses in signaling the bees. Within the circle of white leaves you see a quantity of what we named "pins with dust boxes." You re- member that these dust boxes hold the powdery mate- rial which is as wonderful as Cinderella's fairy godmother in its power to do strange and surprising things. And in the very center of the flower you find a single " pin," as we called it, with a flat top which is not a dust box. But you remember that at the foot of this pin is another sort of box, a seedbox (Fig. 1 6 1 ). which the read about And you have not forgotten that it is on the fiat top of this pin that the bee brushes the yellow dust which gives new life to the seed below, and turns the little case of the seedbox into the juicy cherry. So now what do we find in the cherry blossom? We find i. A green cup cut above into separate leaves, 2. A circle of white leaves. 3. Some pins with dust boxes. 4. One pin with a seedbox. Here you have the plan on which the cherry blossom is built (for flowers, like houses, are built on different plans), and the build- ing plan of the cherry blossom is one of the simplest of all. So it is well, before study- ing more difficult flowers, to feel quite at home with this one. And you must try FlG ' T : to remember first what work each part of the flower is expected to perform; for you see that the leaves of the green cup, the pretty white leaves, the pins with dust boxes, and the pin with a seedbox, have each and all their special task, — a task which they alone are able to accomplish. Now, in talking about a flower it is troublesome to use a great many words where one would answer every purpose, so I will tell you what these different parts of the flower have been named ; and by taking a little trouble to remember these names, we can save a good deal of time. The green cup is called the " calyx." " Calyx" is a Greek word meaning "cup." 190 The circle of leaves which grow above the green cup or calyx is called the " corolla." " Corolla " comes from a word which means " crown." The pins with dust boxes are called "stamens." "Stamen" comes from a word meaning "to stand." The pin with a seedbox is called the "pistil." "Pistil" is another form of the word "pestle." A pestle is an instrument used in the drug shops for pounding and mixing medicines. You might ask to look at one the next time you are sent to the drug shop, and then you can see for yourselves if it really looks like its namesake, the pin with a seedbox. Perhaps at first you may find it a little difficult to bear in mind these four words with their meanings ; but soon they will become quite easy, and will save you much trouble. Green cup, — calyx. Circle of flower leaves, — corolla. Pins with dust boxes, — stamens. Pin with seedbox, — pistil. If you remember the names of these four parts of the flower, how the different parts look, and what they do, you will have made a good start in the study of flowers. I9i LILIES 1 THINK most of you know by sight at least one of the three following flowers. I have asked for pictures of three different kinds of lilies, so that the city and country children alike may recognize an old friend; for every spring the white Easter lily (Fig. 162) stands outside the flower shops, and deco- rates the churches, and trav- els through the streets in the peddler's cart; while in summer time the country is bright with the wood and meadow lilies (Figs. 163, 164). And I hope that even now one of the living blossoms is before you, for I want you to see for yourselves what plan these lilies use in flower building. The building plan of the cherry, you remember, began with a green cup or calyx. Do you find in the lily any green cup? No, there is nothing of the sort in the lilies. You see only a circle of In the last chapter you learned to call such a circle the corolla. But the wise men say that 192 Fig. 164 without a calyx there cannot be a real corolla. So in the lily we will speak of the "flower leaves" in- stead of the corolla. Next we find six of the pins with dust boxes, or the stamens. And then we come to the pin with a seedbox below, or the pistil. So the building plan of the lily has only three divisions : — 1. Flower leaves. 2. Stamens. 3. Pistil. If you look at the lower side of the outer row of flower leaves, you will see that they are streaked with green; and that when the flower is still in bud, only the green, thick parts of these leaves are exposed to the wind and cold, while the more delicate parts of the blossom are hidden almost as snugly as though they were covered by the leaves of a green cup or calyx. These lilies are pleasant flowers to study. Their different parts are so large and simple that you have no doubt as to what they are meant for. The bees could hardly overlook their great, showy handkerchiefs ; and the heaping dust boxes must powder the visiting bees so freely with golden or 'f Fio. 165 brownish dust, that plenty of this is sure to be carried 193 to the pistil of a neighboring blossom; and the flat tip of this pistil is so large and so sticky, that, once the dust is brushed upon it, it is sure to stay there until its wonderful work is accomplished. The gay tulip (Fig. 165) is a cousin to the lily. It is built on almost the same plan. There is no green cup in the tulip ; but every tulip has 1. Flower leaves. 2. Stamens. 3. Pistil. The tip of the tulip's pistil is divided into three parts. L ABOUT STAMENS ET us take a good look at the stamens of the Easter lily. There are six of these. Each dust box is fastened to the tip of a tall stalk. Fig. 166 shows you a single stamen from the Easter lily. It is drawn somewhat larger than life. Its box has opened, and is letting out some grains of dust. There are many different kinds of stamens. I will show you some pictures that will give you an idea of their great variety. Here is one taken from the flower of the shin leaf (Fig. 167). The dust makes its escape through two little openings at the very top of the box. That shown in Fig. 168 is from the barberry. The sides of the box open like a door which is hinged on Fig. 167 top. This arrangement lets out a quantity of dust. DANA'S PLANTS. — I ^ / Fig. 166 194 Here is a collection of stamens of different sorts. Fig. 169 has two boxes at the top of its stalk, and so has Fig. 171. Fig. 172 has a cross- m piece, with a good-sized box at one end, and only the little beginnings of a box at the other. Fig. 170 has a similar crosspiece, with a box at one end only. You see that flower faces show quite as Fig. 168 much variety as do the faces of the people F] you know. You must not expect to find stamens all alike, any more than you would expect all the boys and girls you know to have noses of the same shape, or hair of the same color. Fig. Fig. 171 Fig. 172 This picture (Fig. 173) shows you all the stamens of the pea blossom. Do you notice that quite a number of these (nine, in fact) grow together close about the pistil, while the tenth one stands alone ? That is a strange custom always observed by the stamens of the pea. Next we see all the stamens from one of the tiny flowers of the golden-rod (Fig. 174). These are very much larger than life. There are five of them, fastened together in a sort 173 ;•; of tube. Split open this tube and flatten fig. 174 195 it out. Now they look like five little sisters, arm in arm (Fig. 175). And here, again joined in a tube, we see the stamens of the mallow (Fig. 176). From the hollow of this tube stand out the tops of the mallow's pistils. Some flowers have so many stamens that you would find it almost impossible to count them. This little Fig. 175 Fig. 176 Fig. 177 blossom (Fig. 177), the enchanter's nightshade (drawn much larger than life), has only two. I hope that you children, from now on, will be un- willing to pass by a flower without looking to see whether its stamens are few or many ; and I hope you will try to carry away in your minds a clear idea of the size and shape of their dust boxes. FLOWER DUST, OR POLLEN WHEN a child smells a flower, he is apt to put his nose right into the middle of the blossom, and to take it out with a dab of yellow dust upon its tip. When he brushes off this dust, of course he does not stop to think that each tiny grain holds a speck of the wonderful material we read about some time ago, the material with- out which there can be no life. And probably he does not know that the dust grains from the lily are quite unlike those which he rubs upon his nose when he smells a daisy; that different kinds of flowers yield different kinds of flower dust. If you should look through a microscope \ at a grain of flower dust from the lily, you would see an object resembling Fig. 178. Fig. 179 shows a grain from the Ftg. 178 Ftg. 179 Fig 182 i 9 7 pretty blue flower of the chicory. Fig. 180 is a dust grain from the flower of the pine tree. Fig. 181 is from the laurel, and the odd- looking Fig. 182 is from a dust box of the evening primrose. The next picture (Fig. 183) Fig „ shows you a group of dust grains from flowers of different kinds, one looking like a porcupine, another like a sea shell, another like some strange water animal, and all, I fancy, quite unlike any idea you may have had as to the appear- ance of a grain of flower dust. When you are older, I hope it may be your good luck to see through a microscope some of the odd shapes and curious markings of different kinds of flower dust, or " pollen," as this flower dust is called in the books. And now that you know something of the appear- ance of flower dust, perhaps you wish to learn a little more of the way in which it , helps the flower to turn into the fruit. B ABOUT PISTILS UT first you must know a little something about the pistil, if I am really to make clear to you how the flower dust helps the flower to change into fruit. This picture (Fig. 184) shows you the pistil of the lily. At the foot of this pistil, you remember, is the Fig. 184 box which holds the lily's seeds. The top of the lily's pistil is quite large and some- what flat. It is almost as sticky as if it had received a dab of glue. This flat top dwindles below into a stalk, which grows larger again at its lower end. Now take a sharp knife and cut open lengthwise this pistil. The lower, thicker part, seen through a magnifying glass, looks like Fig. 185. You see a great many baby seeds fastened to a central wall. Each one of these seeds holds a speck of the wonderful material without which there is no life. But this speck of life has not the power to make the seed grow into a plant. To do this, the seed must have some outside help ; and this help can come only from a grain of flower dust. Perhaps you wonder how a dust grain brushed on the pistil's flat top can ever reach the baby seeds hidden away in the seedbox. iL_A I could not tell you to-day how this is done were Fig. 185 ^ n °t for those wise and patient men and women who have spent days and weeks and months, and even years, in watching and studying the ways of plants. But first let me ask you a question. What happens when a healthy seed falls on moist ground ? Why, it seems to take in the moisture, and to thrive upon it. It swells up, and at last it bursts open, and it sends a root down into the earth. Now, something not altogether unlike this happens when a lily dust grain falls upon the moist tip of a lily pistil. The dust grain sucks in the moisture. It g v*Y/ 199 Fig. 187 grows bigger and bigger. The outer skin becomes too small for the swelling contents. At last it bursts open, letting out a little tube. This little tube works its way down through the stalk of the pistil, almost as a root pushes down into the earth, and at last it reaches one of the seeds in the seedbox below. And into this tiny seed the little tube pushes its way. The tube has carried with it that speck of won- derful living material which every dust grain holds And when this living speck has been added to that k J which the seed already holds, a great change begins to come about. This new touch of life, added to that already present, gives the lily seed the power to grow into a lily plant. The other dust grains that were brushed upon the flat top of the lily's pistil act in just the same way. Apparently without difficulty the different tubes find their way to the different seeds, till at last each one has received the fresh touch of life without which it cannot grow into a lily plant. I cannot show a lily dust grain in the act of sending out its life-bearing tube ; but above is a dust grain (Fig. 186) from the thorn apple. You see that it has burst open, and that a tube is pushing its way out. This picture (Fig. 187) is that of a pistil seed- box cut open, showing you a tube that is work- ing its way from the dust grain above to a tiny seed in the seedbox below. As I told you in the last chapter, the name " pollen " Fig. iSc 200 has been given to this wonder-working flower dust. A grain of flower dust is a grain of pollen. In many flowers you will find a pistil much like the one that you see in the lily. But there are as many different kinds of pistils as there are different kinds of stamens. This pistil (Fig. 188) is from the grass of Parnassus, that pretty white flower which you find in the wet meadows in August and September. It has no real stalk, you see, like that of the lily ; but it is quite thick V Fig. i 88 Fig. 189 Fig. 190 Fig. 191 Fig. 192 all the way from top to bottom. In Fig. 189 it is cut across, showing the seeds inside. Many pistils that are joined in one piece below, where the seeds are held, separate above into two or more parts. Fig. 190 shows the seed holder of a saxifrage, divided into two pieces above ; Fig. 191 gives that of the Saint John's-wort, separating into three parts ; that of the sundew (Fig. 192) separates into six parts. Fig. 193 is a section of the pea flower. This is cut lengthwise so as to show you the seeds which line the inner surface of the pistil. Here you have the baby pea pod. 201 All these flowers have only one real pistil, — one pistil which may persuade you, by the way in which it separates above, into thinking that there are more than one. So you must be on your guard in this respect, and remember that flowers have a way of playing tricks with all but the most wide-awake of boys and girls. Look long and carefully before you declare that a flower has only one pistil. Here we see half of a buttercup (Fig. 194). The buttercup has a great many entirely separate pistils. Look sharply at the pic- ture, and you will see them crowded upon the little thimble-shaped ob- ject in the middle of the blossom. Do not confuse them with the stamens, for the buttercup has also a great many stamens. When but- tercup time comes round, I want every one of you to look at these many pistils and stamens. The next picture (Fig. 195) shows you a strawberry. In the strawberry blossom the pistils are so small, and so crowded, and so hidden by the many stamens, that it is not easy to see them ; and so I show you the full- grown berry, with little pistils scattered all over its surface. Each of those tiny objects which Fig. 194 Fig. 195 stand out on the strawberry is a separate pistil. 202 Whenever you look at a flower, I want you to remember that its bright flower leaves will soon fade and fall, and that its stamens will lose their pollen and wither away, but that the pistil or pistils will remain, turning at last into the ripened fruit, — the fruit which is the end, the aim, the object, of the plant's life. >^c THE FIRST ARRIVAL I SHOULD like to ask each of you children to tell me what flower you believe to be first to come in the spring. Some of you have never stopped to think about this. But there are sure to be a few among you who will name one special flower as the earliest of the year. 203 Perhaps even in March you may have ventured into the woods to look for the lovely, fragrant, waxlike blossoms of the trailing arbutus. You know the shel- tered hollow where the snow first melts ; and there the delicate pink flowers make you glad with their beauty, and with the thought of the good time coming. To some of us this first hunt for the arbutus is one of the great events of the year. It means the beginning of long, delicious hours in the fresh air, with birds and trees and butterflies and wild flowers as our chosen companions. But not all of you will agree that this trailing arbutus is the first spring flower. Many think the violet can lay claim to this honor. The yellow violet especially may be found in the woods before the trees have put forth their leaves. And some say that the little blue liverwort (some- times this is pink or white) is the earliest of all ; and others vote for the spring beauty, or for the yellow adder's tongue, or for the Dutchman's breeches, or for the anemone. And still others say that the marsh marigold, the shining flower that in April gilds the wet meadows, leads the procession. But you are wrong, every one of you. The earliest blossom of the year makes its appearance long before any of these flowers you have mentioned. The first plant to blossom knows better than to pro- claim the change of season by anything so fragile as a violet, an anemone, a spring beauty. It sends out its rather coarse little flowers under the protection of a 204 tough waterproof hood, which shields them from the rude winds and nipping cold. This plant bears the ugly name of skunk cabbage (Fig. 196). Its broken stem and leaves give out an odor which at once persuades you that its title is deserved. In the swamps the skunk cabbages send up by the dozen the curious purple hoods which curl about the thick clusters of little flowers. When you come across a colony of these queer-looking objects, no wonder it never occurs to you that the first flower of spring is at hand. The great shiny hoods look more like snails than like flowers ; and indeed usually the flowers are not in sight at all, so well are they shielded by these hood-like leaves. But each little hidden flower has four flower leaves, four stamens, and one pistil. When they have been dusted with pollen by fly visitors, and are preparing to turn into fruit, the purple hoods wither away. Then the plant sends up clusters of large bright green leaves. In June you see these great leaves everywhere in the wet woods. So if you wish to be on hand to welcome the very first flower of the year, you must begin to keep your eyes open by the end of February. You must visit the swamps each day, and look for the purple hoods inside which are snugly hidden the little blossoms of the skunk cabbage. And I advise you now to take a sheet of paper and Fig. 196 205 make a list of the plants as you find them in flower. Put down the date of each blossom as it appears, and the place where you find it. If you begin to do this as children, and keep it up when you are older, you will take real delight in the habit. Each year it will interest you more and more to turn back to the old lists and discover whether the flowers are on time, or whether they are late or early in making their first appearance. I hope your teacher will start you at once with such a list ; for the sooner you begin, the more complete will be your pleasure in this delightful season. sXKc PUSSY WILLOWS SOON after the bage has sent hoods comes the pussy-willow skunk cab- up its purple season. But it is not every child who has the luck to be in the country at this time. There is a clean, sweet smell in the air. Down in the boggy meadow, just before nightfall, the little frogs sing so loud that you wonder if they are trying to make you believe the birds have come back. The brook is getting a bright green border. The buds on the trees are so big that you feel sure in a few 206 hours they must burst open. And you know that each new day may bring with it some happy surprise, — a bird, a leaf, or a flower that you have not seen for many a long month. So when you find the willow branches set thick with silken pussies, you know that a happy time has begun, at least for you country children. And even the city children learn to love these soft pussies when they are placed in tall vases on the teach- er's desk. If you look carefully at the different branches, you see that they bear different kinds of pussies ; and your teacher will tell you, or perhaps you will dis- cover yourselves, that these different branches were broken from different trees. Do you know what each "pussy," or tassel, is made up of ? Each tassel is made up of many tiny flowers. Fig. 197 g ut w ir| ow flowers are built on quite a different plan from cherry flowers. If you pick apart one of these tassels, and examine a single blossom, you will find it hard to believe that it is a flower at all. On one branch the tassels are all golden yellow. The flowers that make up these yellow tassels have neither flower leaves nor pistils. Each blossom has two stamens which are fastened to a little fringed leaf, and nothing more. Such a flower, much magnified, is given in the picture (Fig. 197). The golden color comes from the yellow pollen which has been shaken from the dust boxes. The other branch is covered with silvery green 207 tassels. Each flower in these tassels is made up of a single pistil, which is also fastened to a little fringed leaf (Fig. 198). So you see the building plan used by one kind of pussy-willow flowers is nothing but two stamens ; while the plan used by the other kind is still simpler, it is nothing but one pistil. The golden dust is carried by the bees from the willows which bear dust boxes to those other willows whose flowers have only seedboxes. When they have given to the bees their pollen, the yellow tassels fade away; but the silvery green tassels, on account of their seedboxes, grow large and ripe, turning into the fruit shown in Fig. 62, p. 61 ; and this fruit is one of the kind which scatters its seeds abroad by fastening them to silky sails. &*< ALDERS AND BIRCHES THERE is another shrub or low tree growing along the brook's edge which flowers almost as early as the willows. This is the alder. Perhaps you noticed last fall that these alders were hung with a quantity of little green tassels. These tassels did not fall off with the leaves in November. Through the long winter they clung to the shrub Sometimes they wore little coats of ice which made 208 them look like the glass ornaments on a Christmas tree. When the warm weather came, they put off their ice coats, and grew larger and longer, and at last let out a quantity of stamens. But on the same alder tree that bears these tassels with flowers made up of stamens or dust boxes (Fig. 199, a), you find also the tassels flowers made up of pistils (Fig. 199, b). you make a search, you will the little upright clusters composed of these flowers with pistils. Late in the year, when these clusters have turned into fruit, they look like this picture (Fig. 200). The pretty birches are cousins to the alders, and keep house in much the same way, bearing the tassels with stamens (Fig. 201, a) and the little clusters made up of flowers with pistils (Fig. 201, b) on the same tree. The tassels on some of the birches are very beautiful. When full grown, they are golden yellow, and so long and soft and ;raceful that one feels like stroking them and playing with them as he would with a kitten. Fig. 201 I hope every country child who reads Fig. 200 209 this book and does not already know the willows, the alders, and the birches, will make their acquaintance this spring, and will kinds of flowers, branches from the be brought into the that all can see these among the very earli- examine their two And I hope that different trees will city schoolroom, so flowers, which are est of the year. 3»