. Analytic keys to the genera and species of North American mosses [microform]. Mosses; Mousses. ' 2 1 ill ih if' mn BULLETIN OF THE UNIVERSITT OF WiaOONSIN. 194. Rhacomltrlnm alternatam C. M. & Kindb.—Allied to E. Ma- oounii: stem lower, more branched above: tufts loose, not naked at base, brown with green tips: leaves not crisped, when moist suh-erect or sub- patent, nearly straight, ovate lanceolate, acuminate-acute, often furnished with a short dentate hair point, smooth, refiexed at the base at least on one side; all cells erose, lower linear, upper short angular; costa greenish, stou
. Analytic keys to the genera and species of North American mosses [microform]. Mosses; Mousses. ' 2 1 ill ih if' mn BULLETIN OF THE UNIVERSITT OF WiaOONSIN. 194. Rhacomltrlnm alternatam C. M. & Kindb.—Allied to E. Ma- oounii: stem lower, more branched above: tufts loose, not naked at base, brown with green tips: leaves not crisped, when moist suh-erect or sub- patent, nearly straight, ovate lanceolate, acuminate-acute, often furnished with a short dentate hair point, smooth, refiexed at the base at least on one side; all cells erose, lower linear, upper short angular; costa greenish, stout, percurrent: perigonial leaves sub-ovate or short acuminate, acute or sub-obtuse: female plants not found. Mac. Cat. 73.—On boulders: Sel- kirk Mountains, B. C. 195. Bhacomltrinm robastifollam Kindb.—Di£fers from R. Ma- eounii in leaves less crispate, pellur ery squarrose when moist, more refiexed on borders, often furnished v. .i a short hair point: capsule oval, striate or plicate when dry; teeth dark purple brown, deeper cleft, papillose; beak oblique, needle shaped, very much shorter than capsule; pedicel slightly curved. Mac. Cat. 73.—On rocks : Lake Gi'flBn, B. C; Vancouver Island. 196. Rhaoomitriam obtosum (Lindb.) B. & C—Dioicous: short, densely pulvinate: leaves quite hairless, ovate oblong, gradually acuminate, obtuse at point, nerve lost far below apex, margin narrowly revolute: cap- sule oblong, narrowed at mouth; lid acicular; peristome fugacious, irregr ular, teeth with two unequal legs. Mac. Cat. 74.—On rocks: Lake Superior. 197. Rhacomitrlum heterostichnnt alopecurum Hab.—Dioicous: yel- lowish green, scarcely hoary: stem slender, elongate, fasciculate branched: leaves lanceolate acuminate, acute with a short or obsolete hair point: cap- sule elliptic-oblong, narrow at mouth; lid conic rostrate; teeth short, pale, cleft to base. Mac. Cat. 74.—On dry rocks: Halifax, N. S.; Selkirk Mountains and McLeod's Lake, B. C. 198. Rhacomttrinm heterost
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