. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. XIV ISOETACEM 5A7 approaches more or less the vertical as the latter is more or less inclined. Occasionally the basal wall is so nearly vertical that the cotyledon grows upright and penetrates the neck of the archegonium at right angles to its ordinary position. At the base of the leaf at this stage a single cell, larger than its neigh- bours, may often be seen (Fig. 315, A, /). This is the mother cell of the ligule, found in all the leaves. This cell projects,. Please note that these images a

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. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. XIV ISOETACEM 5A7 approaches more or less the vertical as the latter is more or less inclined. Occasionally the basal wall is so nearly vertical that the cotyledon grows upright and penetrates the neck of the archegonium at right angles to its ordinary position. At the base of the leaf at this stage a single cell, larger than its neigh- bours, may often be seen (Fig. 315, A, /). This is the mother cell of the ligule, found in all the leaves. This cell projects,. 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