. A general system of botany, descriptive and analytical. In two parts. Part I. Outlines of organography, anatomy, and physiology. Part II. Descriptions and illustrations of the orders. By Emm. Le Maout [and] J. Decaisne. With 5500 figures by L. Steinheil and A. Riocreux. Translated from the original by Mrs. Hooker. The orders arranged after the method followed in the universities and schools of Great Britain, its colonies, America, and India; with additions, an appendix on the natural method, and a synopsis of the orders, by Hooker. Botany. INTRODUCTORY CHAPTER. descend, and tliey togeth
. A general system of botany, descriptive and analytical. In two parts. Part I. Outlines of organography, anatomy, and physiology. Part II. Descriptions and illustrations of the orders. By Emm. Le Maout [and] J. Decaisne. With 5500 figures by L. Steinheil and A. Riocreux. Translated from the original by Mrs. Hooker. The orders arranged after the method followed in the universities and schools of Great Britain, its colonies, America, and India; with additions, an appendix on the natural method, and a synopsis of the orders, by Hooker. Botany. INTRODUCTORY CHAPTER. descend, and tliey together constitute the vegetable axis. In its early stage this axis is simple, but by successive growths it -Qsually gives off branches, which form secoiulnnj axes; each branch be regarded as an independent axis. The point of junction of the stem and root is the neclc {collum, c). It is from this point, which may be thickened, shortened, or obscure, that the ascending fibres of the stem and the descending fibres of the root diverge. The stem, which alone possesses the power of emitting lateral expansions, develops from its sides more or less flattened bodies, the leaves (p). The point at which the leaves issue from the stem is generally thickened, and is termed a node (nodus); the intervals between the nodes ai'e termed internodes (internodium, merithallus). When the nodes develop leaves only, the stem remains perfectly simple or unhranched ; but at each node a hud {gemran, b, b) may spring from the axil of the leaf; and this bud, which appears at first as a small protuberance, afterwards becomes a hranch [ramus), which lengthens, develops leaves, and ramifies in its turn. The buds springing from the axils of the leaves on the primitive axis thus give origin to as many fresh axes, whence it results that the mother-plant is repeated by every bud which it produces. Hence it is more logical to say that a plant multiplies, than that it divides by branching ; and a vegetable may
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1873
