. A textbook of botany for colleges and universities ... Botany. 154 MORPHOLOGY formed first a rather large, undifferentiated mass of tissue (fig. 365) in which at least three growing points (foot, root, and stem) become organized, the leaf appearing later. In this embryogeny of Botrychium there is a general resemblance to the Lycopodiales in the belated organization of some body region; and a still further resemblance to those species of Lycopodium in which the embryo begins with the development of a protocorm (p. 131). The same belated ap- pearance of one or more body regions has been observ
. A textbook of botany for colleges and universities ... Botany. 154 MORPHOLOGY formed first a rather large, undifferentiated mass of tissue (fig. 365) in which at least three growing points (foot, root, and stem) become organized, the leaf appearing later. In this embryogeny of Botrychium there is a general resemblance to the Lycopodiales in the belated organization of some body region; and a still further resemblance to those species of Lycopodium in which the embryo begins with the development of a protocorm (p. 131). The same belated ap- pearance of one or more body regions has been observed also in species of Ophioglossum. In the whole group there seems to be no such early and complete differentiation of the body regions as in Equisetales and Fig. 361. — Gametophyte of Botrychium: antheridia in dorsal lidge; archegonia along the slopes; region of endophytic fungus in ventral region. — After 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 Coulter, John Merle, 1851-1928; Barnes, Charles Reid, 1858-1910, joint author; Cowles, Henry Chandler, 1869- joint author. New York, Cincinnati [etc] American book company
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