The book First Lessons in Botany And Vegetable Physiology was written by author Asa Gray Here you can read free online of First Lessons in Botany And Vegetable Physiology book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is First Lessons in Botany And Vegetable Physiology a good or bad book?
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Compoand leaves. These, as akeady stated (155), do not differ in any absolute way from the divided form of simple leaves. A compound leaf is one which has its blade in two or more entirely separate parts, each usually with a stalklet of its own : and the stalk- let is often jointed (or artictdated) with the main leaf-stalk, just as this is jointed with the stem. When this is the casey there is no doubt that the leaf is compound. But when the pieces have no stalklets, and are not jointed with th...e main leaf-stalk, the leaf may be considered either as simple and divided, or compound, according to ihe circumstances. FIG. 19f). PinriP.ts with an odd leaflet, or odd -pinnate. 128. Abruptly pinnate leaf. 197. Pinnate with a tendril. LESSON 9.] COMPOUND LEAVES. 65 164. The separate pieces or little blades of a compound leaf are called leaflets. 165. Compound leaves are of two principal kinds, namely, the pinnate and the palmate ; answering to the two modes of veining in reticulated leaves (145-147), and to the two sorts of lobed or di- vided leaves (158, 159).
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