. The Bryologist. Mosses; Liverworts; Lichens; Botany; Bryology. — 55 — 2a. Marginal 2 or more rows of cells at leaf-middle irregular; (3) leaf-margin incurved, serrulate; (4) seta pale red, cm. long; (5) stems up to 150 mm. long. Ditrichum giganteum^ Wms.—'Yukon to Mont.; Mich., Plate XII.—Ditrichum giganteum (i) Plant, X about i. (2) Leaf-tip, X about 350. (3) Perichaetial leaf, X about 18. (4) Leaf, X about 22. (5) Cells of leaf-middle, X about 350.—(After R. S. Williams.) 2b. Marginal 2 or more rows of cells at leaf-middle rectangular, 2-8 times as long as wide; (3) leaf-margi
. The Bryologist. Mosses; Liverworts; Lichens; Botany; Bryology. — 55 — 2a. Marginal 2 or more rows of cells at leaf-middle irregular; (3) leaf-margin incurved, serrulate; (4) seta pale red, cm. long; (5) stems up to 150 mm. long. Ditrichum giganteum^ Wms.—'Yukon to Mont.; Mich., Plate XII.—Ditrichum giganteum (i) Plant, X about i. (2) Leaf-tip, X about 350. (3) Perichaetial leaf, X about 18. (4) Leaf, X about 22. (5) Cells of leaf-middle, X about 350.—(After R. S. Williams.) 2b. Marginal 2 or more rows of cells at leaf-middle rectangular, 2-8 times as long as wide; (3) leaf-margin incurved, entire to faintly serrulate; (4) seta pale yellow, 1-2 cm. long; (5) stems up to 5 mm. long; spores 21-27 in all our other species 14 or less. Ditrichum schimperi^ (Lesq.) Paris— to Calif, lb. Leaves 1-3 mm. long, only the longer reaching 3 mm. 2a. Marginal 2 or more rows of cells at leaf-middle isodiametric or nearly so, irregular; (3) leaf-margin incurved, entire or with a few teeth ^ D. flexicaule longifolium Hag. ® Leptotrichum schimperi 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 Grout, A. J. (Abel Joel), b. 1867; Smith, Annie Morrill; Jennings, Otto Emery, 1877-; American Bryological and Lichenological Society; American Bryological Society. St. Louis, Mo. [etc. ] American Bryological and Lichenological Society
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