— 334 — 



b. Capsule emergent shorter than pedicel. 

 T.Ph.pygmaeum James. 



Leaves suboblong acute or short-acuminate, slightly serrate 

 above; costa not percurrent. Capsule oblong-piriform; lid api- 

 culate. — Earth in alps r. Amer. »U. S. Utah»: Lq. et Jam. 



B. Pedicel of capsule long-exserted. 



a. Lid of capsule flat when ripe and moist. 

 S.Ph.piriforme L. — Bryum L.; Physcomitrium Bridel; Ph. 

 Drummondii Britten. 



Upper leaves oblong-lanceolate not sharply acuminate, serrate 

 above; costa not percurrent. Capsule not or slightly strangulate 

 when dry; lid apiculate. — Wet earth and walls. Eur. com- 

 mon in lower districts. Sweden! Engl.: Rogers. France: Husnot. 

 Amer. Can.: Macoun. 

 9.Ph.turlt)iiiatum Richard. — Ph. Kellermani Britton 1. c. 



Upper leaves long-lanceolate sharply acuminate serrate above; 

 costa percurrent or short-excurrent. Capsule, often strangulate 

 when dry; lid us. mamillate, sometimes short-pointed. — Amer. r. 

 Can.: Dearness. U. S.: com. Macoun; Boll and Brendel, com. 

 C. Mueller. 



b. Lid of capsule convex us. mamillate. 

 lO.Fh.megalocarpum Kindb. bull. Ton-, club XVI. 



Upper leaves long-lanceolate sharply acuminate nearly entire 

 yellow-margined; costa percurrent or short-excurrent. Capsule 

 us. large r. slightly strangulate. — Amer. Pacif. distr. Can.: 

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

 * Ph.californicum Britton 1. c. 



» Leaves shorter, oblong-lanceolate sometimes not sharply 

 acuminate; costa not percurrent. Capsule smaller, slightly stran- 

 gulate. — Amer. U. S.»: Mrs Britton. 



ll.Ph.Langloisii Renauld et Cardot. — Ph. australe Brit- 

 ton 1. c. 



Differs from Ph. megalocarpum: Leaves serrate all around, not 

 or less distinctly yellow-margined; capsule not large, sometimes 

 strangulate when dry; lid sometimes apiculate. — Amer. r. U. S.: 

 Langlois, com. Cardot; C. Roell, com. J. Roell. 

 12.Ph.platyphyIlnm Kindb. cat. Canad. m. 



Leaves broad ovate-oblong: upper sharply acuminate serrate 

 above; costa percurrent or short-excurrent. Capsule not large, 

 not distinctly strangulate when unripe. — Amer. r. Can.: Flet- 

 cher, com, Macoun, 



