. 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. 32 HOW PLANTS GROW YEAll AFTER YEAR. torn of each leaf, which is enlarged or thickened for containing it. These thick leaf-bases, or scales, crowded together, make up the bulb ; all but its very short stem, concealed within, Avhich bears these scales above, and sends down the roots from underneath. Fig. G7 shows one of the leaves of the season, taken off, with its base cut across, t
. 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. 32 HOW PLANTS GROW YEAll AFTER YEAR. torn of each leaf, which is enlarged or thickened for containing it. These thick leaf-bases, or scales, crowded together, make up the bulb ; all but its very short stem, concealed within, Avhich bears these scales above, and sends down the roots from underneath. Fig. G7 shows one of the leaves of the season, taken off, with its base cut across, that the thickness may be seen. After having done its work, the blade dies off, leaving the thick base as / a bulb-scale. Every year one or more buds in the centre of tlie bulb grow, feeding on the food laid up in the scale?, and making the staUv of the season, which bears the flowers, as in Fig. 1, 2. 78. An Onion is like a Lily-buib, only each scale or leaf-base 13 so wide that it enwraps all within, making coat after Eul!) lower of a Lily. Leaf, lowti tiiil culoff. 79. In shrubs and trees a great quantity of nouri>hiT]ent, made the summer before, is stored up in the young wood and bark of the shoots, the trunk, and the roots. Upon this the buds feed the next spring ; and this enables them to develop vigorously, and clothe the naked branches with foliage in a few days; or with blos- eoms immediately following, as in the Horsechestnut; or with blossoms and foliage together, as in Sugar Maple ; or with blosFoms before the leaves appear, as in Red Maples and Elms. The rich mucihige of the bark of Slippery Elm, and the sweet Fpring sap of Maple-trees, belong to this store, deposited in the wood the previous summer, and in spring dissolved and rapidly drawn into the buds, to supply the early and sudden leafing and blossoming. 80. In considering plants, as to "how they grow," it should be noticed that all of them, from the Lily of the field to the t
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