. Botany for young people and common schools. How plants grow, a simple introduction to structural botany. With a popular flora, or an arrangement and description of common plants, both wild and cultivated. Botany; Botany. THE ARRANGEMENT OF BRANCHES. 25 plained (55), they are named Axillary Buds. (See Fig. 52, 53.) These buds grow into branches, just as the first or terminal bud of the seedling grows to make the main stem. 59. The Arrangement of Branches, therefore, follows that of the axillary buds, and this that of the leaves. Now leaves are placed on the stem in two principal ways ; they a
. Botany for young people and common schools. How plants grow, a simple introduction to structural botany. With a popular flora, or an arrangement and description of common plants, both wild and cultivated. Botany; Botany. THE ARRANGEMENT OF BRANCHES. 25 plained (55), they are named Axillary Buds. (See Fig. 52, 53.) These buds grow into branches, just as the first or terminal bud of the seedling grows to make the main stem. 59. The Arrangement of Branches, therefore, follows that of the axillary buds, and this that of the leaves. Now leaves are placed on the stem in two principal ways ; they are either alternate or opposite. They are al- ternate when they fol- low one after another, there being only one to each joint of the stem, as in Morning- Glory (Fig. 4, all after the seed-leaves), and in the Linden or Bass- wood (Fig. 52), as well as the greater part of trees or plants. They are opposite when there are two leaves upon each joint of stem, as in Ilorsechest- nut. Lilac, and Maple (Fig. 31, 53) ; one leaf in such cases being alwaj's exactly on the opposite side of the stem fi-om its fellow. Now in the axil of almost every leaf of these trees a bud is soon formed, and in general plainly shows itself before summer is over. In Fig. 52, a, a, a, a, are the axillary buds on a twig of Bass- wood,— they are alternate, like the leaves, — and i is the terminal bud. Fig. 53, a twig of Red Maple, has its axillary buds opposite, like the leaves; and on the very summit is the terminal bud. Next spring or sooner, the former grow into al- ternate branches ; the latter grow into opposite branches. These branches in their turn form buds in the axils of their leaves, to grow in time into a new generation of similar branches, and so on, year after year. So the reason is plain why the branching or spray of one tree or bush differs from that of another, each having its own plan, depending upon the way the leaves are arranged on the stem. 60. The spray (or ramification) of trees a
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectbotany, bookyear1858
