. Plant life, considered with special references to form and function. Plant physiology. Fig. Fig. 38. Fig, 37.—Transverse section of the axis of Chara. a, internodal cell; b, cortical cells Magnified about 30 diam.—From a drawing by C. E. Allen. Fig. 38,—Longitudinal section of apex of axis of Chara. x. apical cell. The seg- ment next below will divide into a nodal and an internodal cell ; the next one has already divided and the nodal half has again divided into two internal and several external (only 2 show) nodal cells, t-, ti, internodal cells ; between them a node pro- dncing the branche
. Plant life, considered with special references to form and function. Plant physiology. Fig. Fig. 38. Fig, 37.—Transverse section of the axis of Chara. a, internodal cell; b, cortical cells Magnified about 30 diam.—From a drawing by C. E. Allen. Fig. 38,—Longitudinal section of apex of axis of Chara. x. apical cell. The seg- ment next below will divide into a nodal and an internodal cell ; the next one has already divided and the nodal half has again divided into two internal and several external (only 2 show) nodal cells, t-, ti, internodal cells ; between them a node pro- dncing the branches (" leaves") e and/", and the cortical branches ,(, a. I', a similar branch growing up from node below, only its tip showing. Magnilied 330 diam.— After Sachs. Upon the whorled branches, and is wanting ujjon the ultimate divisions. While a cross-section of the axis shows a complete union between the walls of the cortical cells {h, fig. 37) and the central one (a, fig. 37), a study of their de\elopnient shows tliat they are originally branches of the outer cells at each node, which likewise produce the circle of "lea\'; The. 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 Barnes, Charles Reid, 1858-1910. New York, H. Holt & company
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