. A manual of Indian botany. Botany. 52 MORPHOLOGY The lateral divergence is often expressed by an angle, and then it is known as angular divergence. Thus the lateral divergence | corresponds to angular diver- gence of 5- of 360° = 180°; the lateral divergence I corresponds to angular \iivergence of ^ of 360° = 120°; the lateral divergence f corresponds to angular divergence of f of 360° = 144°; and so on. When the spirally arranged leaves are very close set, in. v\\xS \X// I^iff- 53-—Phyllotaxis of Leaves (transverse) Other words, when the divergences are very small, it is often very difficul
. A manual of Indian botany. Botany. 52 MORPHOLOGY The lateral divergence is often expressed by an angle, and then it is known as angular divergence. Thus the lateral divergence | corresponds to angular diver- gence of 5- of 360° = 180°; the lateral divergence I corresponds to angular \iivergence of ^ of 360° = 120°; the lateral divergence f corresponds to angular divergence of f of 360° = 144°; and so on. When the spirally arranged leaves are very close set, in. v\\xS \X// I^iff- 53-—Phyllotaxis of Leaves (transverse) Other words, when the divergences are very small, it is often very difficult to make out the orthostichies. In such caseis, however, we find well-marked lateral or diagonal stichies known as para-stichies. These para-stichies can easily be made out on the stems of Date-palms (fig. 51), tal-palms, &c., because in them the leaf-bases or leaf-cicatrices are left behind when the leaves fall off. The above diagrams are given to illustrate the longitudinal (fig. 52) and transverse projections (fig. 53) of \, f, and f Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bose, G. C. London, Blackie & Son Ltd.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1920
