. Class-book of botany [microform] : being outlines of the structures, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. Vines. 48, Passion-flower (Passlflora lutea) climbing by tendrils. 49, Morning-glory, twining f^om right to left 60, Hop, twining from left to right. 179. The twining vine, having also a leneth greatly disproportioned to its dia- meter, supports itself on o\^ - plants or objects by entwining itself around theiu, being destitute of tendrils. Thus the hop ascends in
. Class-book of botany [microform] : being outlines of the structures, physiology, and classification of plants : with a flora of the United States and Canada. Botany; Botany; Plants; Plants; Botanique; Botanique; Plantes; Botanique. Vines. 48, Passion-flower (Passlflora lutea) climbing by tendrils. 49, Morning-glory, twining f^om right to left 60, Hop, twining from left to right. 179. The twining vine, having also a leneth greatly disproportioned to its dia- meter, supports itself on o\^ - plants or objects by entwining itself around theiu, being destitute of tendrils. Thus the hop ascends into the air by foreign aid, and it is a curious fact that the direction of its winding is always the same, viz., with the sun, from left to ri^Lt; nor can any artificial training induce it to reverse its course. This is a general law among twining stems. Every individual plant of the same species revolves in the same direction, although opposite directions may characterize different species. Thus the morning glory revolves always against the sun 180. The forms of scale-stems are singular, often distorted in consequence of their underground growth and the unequal development of tlui internodes. They commonly belong to perennial herbs, and the principal forms are described as follows; but intermediate connecting forms are very numeraus and often perplexing. 181. The creeper is either subaerial or subterranean. In the former case it is prostrate, running and rooting at every joint, and hardly dis- tinguishable otherwise from leaf-stems, as the twin flower (Linneea), tlie partridge-berry (Mitchella). In the latter case it is more commonly clothed with scales, often branching extensively, rooting at the nodes, exceedingly tenacious of life, extending horizontally in all directions be- neath the soil, annually sending up from its terminal buds erect stoma '%. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - co
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Keywords: ., bookcentury1800, bookdecade, booksubjectbotany, booksubjectplants
