. Botany of the living plant. Botany; Plants. Fig. 369. A, Scapania nemorosa, dorsal view of the leafy shoot, which bears a sporogonium at its tip. D, Frullania tamarisci, view of leafy shoot from below, to show the ventral row of leaves, and the two lateral rows, of which the lower lobes form pitchers. A has the " succubous," B the " incubous disposition of the leaves. (After Cavers.) A distinct line of vegetative advance is shown by the Junger- manniales, in which successive steps may be found from the thalloid state, through various forms of marginal lobes, to a full leafy de
. Botany of the living plant. Botany; Plants. Fig. 369. A, Scapania nemorosa, dorsal view of the leafy shoot, which bears a sporogonium at its tip. D, Frullania tamarisci, view of leafy shoot from below, to show the ventral row of leaves, and the two lateral rows, of which the lower lobes form pitchers. A has the " succubous," B the " incubous disposition of the leaves. (After Cavers.) A distinct line of vegetative advance is shown by the Junger- manniales, in which successive steps may be found from the thalloid state, through various forms of marginal lobes, to a full leafy develop- ment. In the truly leafy Liverworts there is a ventral row of leaves, and a row of lateral leaves on either side. These leaves are more or less clearly two-lobed, and the lobes are often unequal (Fig. 369, -l â Sometimes a lobe may become highly specialised, as in Frullania (Fig. 369, B), where that which is downward-directed develops as a water-sac, or pitcher, effective in collecting and holding water in this epiphytic or rock-dwelling genus. On the other hand, in Trichocolea. 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 Bower, F. O. (Frederick Orpen), 1855-1948; Wardlaw, C. W. (Claude Wilson), 1901-. London, Macmillan and Co. , ltd.
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