— 73 — 



rostellate; pedicel often long and at apex aveuate. Perichetial 

 leaves long-acuminate filiform-pointed denticulate above. Tufts 

 green. Stem often furnished with small shoots or filiform 

 branchlets, falling off to propagation. — Shady rocks and 

 earth, gen. not r. Eur. Sweden, Germany, Switzerl.! J.Mer. Can. 

 less r. fiuiting: Macoun; Waghorne. 



B. Leaves nearly entire or near apex faintly denticulate; 

 alar cells distinct, the others narrow-linear. Capsule not annu- 

 late. Monoecious. 



le.P.albuIum C. Mueller. — Hypnum C. M,; Plagiothecium 

 Kindb.; »Hypnum micane Swarlz»: Lesq. et Jam. 



Leaves small green ovate-oblong not recurved, us. short-acu- 

 minate or with short twisted point. Capsule very small indi- 

 stinctly necked, more or less oblique or arcuate; lid rostellate 

 or r. obtuse mamillate. — Trees and stones r. Amer. Can.: 

 Macoun. U. S.: Langlois, com. Cardot. 



17.P.fiilTUm Hooker et Wilson. — Hypnum H. W.; SuU. ic. 

 m.; Plagiothecium Kindb. 



Leaves larger than in the last, fulvous or golden glossy 

 ovate-oblong recurved below. Perichetial leaves longer-acumi- 

 nate. Capsule shorter and thicker with thick neck; lid mamil- 

 late. Tufts nearly eradiculose. — Swamps r. Amer. U. S.: 

 Langlois, com. Cardot. 



C. Leaves small gen. entire. Us. dioecious. 



a. Costa of leaves short double or indistinct. Dioecious. 

 IS.P.nitidulum Wahlenberg. — Hypnum Wng fl. lappon.; 

 Plagiothecium Schimper; P. Muellerianum Schimp.; Sull. ic. m. 



Leaves ovate-lanceolate gradually tapering to a filiform often 

 long point, quite entire, distant; cells narrow-linear, alar not 

 distinct. Capsule small cylindric-oblong or subobovate, gen. 

 oblique and faintly cernuous, annulate; cilia short; lid rostellate; 

 pedicel short. Tufts loose glossy green. — Rocks and earth, 

 gen. r. Eur. Sweden (not r.), Switzerl.l Amer. Can.: Macoun; 

 Moser. — P. MveUerianum Schimp. (syn.) differs only in smaller 

 narrower leaves and looser tufts. ■ — Eur. Switzerl.l France: 

 Spruce, com. Boswell. 

 19.P.pseu(lo-latebricola Kindb. cat. Canad. m. 



Leaves entire less distant, from broadly ovate-lanceolate base 

 suddenly tapering to a straight filiform somewhat long point; 

 alar cells few often not distinct, the others narrowly linea&| 

 Capsule obovate-oblong oblique slightly curved often pendent; 

 teeth pale; cilia long subappendiculate; lid conic; pedicel short. 



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