— 287 — 



16.W.conTOlnta C. M. et Kindb. cat. Can. m. 



Leaves sublinear- subulate. Capsule gen. narrow; beak shorter. 

 — Crevices of rocks princ. in alps r. Amer. Can. Rocky mts 

 2300 metr. a. sea, Vane. isl. and Peace river: Macoun. 



B. Perichetial leaves acute not convolute. Other leaves 

 ■with excurrent costa. 

 IT.W.Tiridula L. — Bryum L.; Weisia Hedwig. 



Leaves from subovate base acuminate, strongly involute, only 

 the lowest with flat borders; costa pale, papillose at back. 

 Cap.sule us. suboval with shorter beak; pedicel yellow. — On 

 earth, often on walls and roadsides. Eur. common in lower 

 districts. Sweden, Switzerl.l Amer. Can.: Macoun; Drummond 

 67. U. S.: Sullivant, com. C. Mueller. 



* W.longirostris Kindb. in Hedwigia 1896 p. 59. 



Capsule more wide-mouthed, gen. shorter than beak; teeth 

 gen. rudimentary. — Amer. r. U. S. Chicago: Roell. 



* W.crispata Esenbeck et Hornschuch; Gymnostomum Es. et 

 Hsch.; Weisia Juratzka. 



Capsule more small-mouthed, suboblong, r. longer than beak; 

 teeth rudimentary. — • Clay and calcareous soil. Eur. Switzerl.! 

 Sweden: J. Persson. 



* W.loDgiseta Lesquereux et James. 



Leaves larger, more hyaline at base. Peristomial teeth often 

 cleft. Tufts gen. more dense. — R. Eur. Engl.: Rogers. Amer. 

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

 IS.VV.Wimmeri Sendtner. — Gymnostomum Sendt.; Weisia 

 Br. eur. 



Differs from W. viridula in suboblong leaf-base and paroe- 

 cious inflorescence. Peristome us. rudimentary. — Earth in 

 alp. regions r. Eur. Norway! Switzerl. 1; Schimper. 

 19.W.rutilans Hedwig. — Gymnostomum H.; Weisia Lindb.; 

 W. mucronata Br. eur.; W. Wolfii Lesq. et Jam. 



Differs from W. viridula in nearly all leaves flat at borders. 

 Capsule us. suboval; beak shorter; pedicel orange about 1 c. m. 

 long. — Clay soil r. Eur. Engl.: Barnes, com. Bottini. Italy: 

 Roell. Amer. Can. Ottawa and Vane. isL: Macoun. U. S.: 

 Wolf, com. C. Mueller. 



* W.Ganderi Juratzka. 



Capsule oblong scarcely longer than beak. — Eur. r. Switzerl. I 

 France: Philibert. 



