. Botany; principles and problems. Botany. Fig. 156.—Chara. A, a main branch, showing the circles of small, lateral branches, bearing the sexual organs, arising at the joints of the main branch. B, part of a lateral branch showing the sexual organs; the oogonium above and the antheridium below. C, the sexual organs and branch in section, oogonium (with one large egg) at right and antheridium at left. short branches. No asexual spores are produced, but along the branches are borne antheridia and oogonia, far more compli- cated than among any other thallophj^tcs. The antheridium is spherical and


. Botany; principles and problems. Botany. Fig. 156.—Chara. A, a main branch, showing the circles of small, lateral branches, bearing the sexual organs, arising at the joints of the main branch. B, part of a lateral branch showing the sexual organs; the oogonium above and the antheridium below. C, the sexual organs and branch in section, oogonium (with one large egg) at right and antheridium at left. short branches. No asexual spores are produced, but along the branches are borne antheridia and oogonia, far more compli- cated than among any other thallophj^tcs. The antheridium is spherical and its wall is composed of eight somewhat triangular cells from the inner surface of which arise a large number of many-. 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 Sinnott, Edmund Ware, 1888-. New York, McGraw-Hill


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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbotany, bookyear1923