. Fundamentals of botany. Botany. Fig. 156.—Anthoceros Imis, showing the lobed thallus of the gameto- phyte, bearing several upright sporogonia in various stages of develop- ment.' At the right and left sporogonia dehiscing, and scattering the spores. Note the slender, thread-like columellas, and the lack of differ- entiation of the sporogonium into seta and capsule. The sheath (calyp- tra) at the base of the sporogonium is formed chiefly from the vegetative tissues of the gametophyte, and only to a slight extent by the walls of the Fig. 157.—Anthoceros Pearsoni. Longitudinal sec
. Fundamentals of botany. Botany. Fig. 156.—Anthoceros Imis, showing the lobed thallus of the gameto- phyte, bearing several upright sporogonia in various stages of develop- ment.' At the right and left sporogonia dehiscing, and scattering the spores. Note the slender, thread-like columellas, and the lack of differ- entiation of the sporogonium into seta and capsule. The sheath (calyp- tra) at the base of the sporogonium is formed chiefly from the vegetative tissues of the gametophyte, and only to a slight extent by the walls of the Fig. 157.—Anthoceros Pearsoni. Longitudinal section through a well- developed, glandular thickening, in which are embedded a number of antheridia. X S3- (After JNI. A. Howe.) near the dorsal surface. They remain imbedded in the surrounding tissue until mature, closely resembling, in. 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 Gager, C. Stuart (Charles Stuart), 1872-1943. Philadelphia, P. Blakiston's son & co.
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Keywords: ., bookauthorgag, bookcentury1900, bookdecade1910, booksubjectbotany
