. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. m THE jungermanniAles. Fig. 42.—A, Vertical, B, C, horizontal sections through the apex of Pallavicinia cylindrica; *, apical cell, A, X22S; B, C, X430; D, E, Pellia epiphylla; D, ver- tical section; E, horizontal (optical) section, 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 Campbell, Douglas Houghton, 1859-1953

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. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. m THE jungermanniAles. Fig. 42.—A, Vertical, B, C, horizontal sections through the apex of Pallavicinia cylindrica; *, apical cell, A, X22S; B, C, X430; D, E, Pellia epiphylla; D, ver- tical section; E, horizontal (optical) section, 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 Campbell, Douglas Houghton, 1859-1953. New York, The Macmillan Company;

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Keywords: ., bookauthorcampbelldouglashought, bookcentury1900, bookdecade1910