. The Characeae of America. n. w. x- T fl. Fig. 21. Fig. 22. Fig. 23. given section, due to the overlapping of the lateral tubes. Fig. 23 (drawn from nature) illustrates this peculiarity. " 1' " is a lateral cell which, normally, should have stopped at '' x," as shown by the dotted line, but which grew on and pushed in between the other laterals; a section just above "x" would show an extra cell. The normal mode of union of the lateral cells is by horizontal (blunt) ends, as at "a," "a, "while the oblique overlapping of these ends, as at "b
. The Characeae of America. n. w. x- T fl. Fig. 21. Fig. 22. Fig. 23. given section, due to the overlapping of the lateral tubes. Fig. 23 (drawn from nature) illustrates this peculiarity. " 1' " is a lateral cell which, normally, should have stopped at '' x," as shown by the dotted line, but which grew on and pushed in between the other laterals; a section just above "x" would show an extra cell. The normal mode of union of the lateral cells is by horizontal (blunt) ends, as at "a," "a, "while the oblique overlapping of these ends, as at "b," "b," is, like the characteristic cortex of our dioecious Ch. aspera. In this species the cortex is only sub- triple-corticated, the variation being toward a suppression of the lateral 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 Allen, Timothy Field, 1837-1902. New York : [s. n. ]
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