. Text-book of botany, morphological and physiological. Botany. 140 MORPHOLOGY OF TISSUES. last is again immediately broken up by a septum (IP, IP) into two disc-shaped cells, and in each of these numerous small cells arise by the formation of vertical and afterwards horizontal walls (as may be seen in the figure further back from the apex); and it is easily seen how the whole branch is built up of portions of tissue, each of which originated from a single segment. The same takes place. FIG. 109.—Apical region of a shoot of MetzgeriaJ"urcata in the act of bifurcation, looked at from the s
. Text-book of botany, morphological and physiological. Botany. 140 MORPHOLOGY OF TISSUES. last is again immediately broken up by a septum (IP, IP) into two disc-shaped cells, and in each of these numerous small cells arise by the formation of vertical and afterwards horizontal walls (as may be seen in the figure further back from the apex); and it is easily seen how the whole branch is built up of portions of tissue, each of which originated from a single segment. The same takes place. FIG. 109.—Apical region of a shoot of MetzgeriaJ"urcata in the act of bifurcation, looked at from the surface (after Kny). The shoots consist of a single layer of cells {/f)t which is however penetrated by a mid-rib n n>', three to six layers in thickness. in the lateral branchlets x, y, which in this case arise originally from lateral protuberances of the apical cell. These processes are remarkably clearly seen in Stypocaulon, in the first place because only one row of segments is formed lying one over another, and in the second place because the segments themselves are transformed into portions of tissue without at the same time growing, as is. 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 Sachs, Julius, 1832-1897; Vines, Sydney Howard, 1849-1934. ed. and tr. Oxford, Clarendon press
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1882
