— 346 — 



— Near cascades in alp. regions r. Amer. U. S. Oregon 2100 

 metr. a. s.; J. Roell, com. Brotherus; Idaho 1350 metr. a. b.: 

 Leiberg, com. Mrs E. G. Britton. 



2.R.simplex Kindb. — Bryum Kindb. cat. Canad. m.; Mnium 

 (Roellia) Kindb. revue bryol. 1896. 



Nearly allied to the last but well-distinct. Differs from it: 

 Leaves smaller, crowded and not decurrent. Comal leaves 

 shorter, oval-spathulate. Shoot-leaves nearly similar, more 

 numerous and not distant, not or indistinctly Umbate. Capsule 

 constricted below the wide mouth; lid obtuse. Endostome 

 hyaline, cilia not appendiculate, spores small, as in the last. 



— Alp. regions r. Amer. Can. Brit. Col., Gold Range 2100 

 metr. a. s., Vane. isl. (mt Benson): Macoun. 



154. Rhodobryum (Schiraper, as subgenus) Limpricht. 

 l.B.TOSenm Weis. — Mnium Weis; Rhodobryum Limpricht; 

 Bryum proliferum (L. as var.) fSibthorp; Lindb.; Braithwaite. 



Comal leaves suboblong or broadly Ungulate, obtusate acute 

 or abruptly broad-apiculate, serrate above middle, revolute be- 

 low it; costa gradually narrower, not excurrent. Capsule red- 

 brown subsymmetric nearly straight; neck short not or slightly 

 curved; lid conic or subconvex mamillate; arcbegonia 5 — 6; 

 pedicels often clustered. — Wet places in woods in lower districts. 

 Eur. nearly common. Sweden/ Switzerl.l 

 2.B.oiitariense Kindb. — Bryum Kindb. bull. Torr. club XVI. 



Comal leaves Ungulate abruptly short-acuminate, much more 

 numerous than in the last, dentate with large confluent often 

 yeUowish teeth above to Yj or '/g, revolute below the dentate 

 part; costa stout excurrent. Capsule pale brown asymmetric; 

 neck curved half as long; lid convex short-apiculate; archegonia 

 numerous; pedicel us. soUtary. Dioecious as the last. — Old 

 logs and Umestone rocks. Amer. not r. Can.: Macoun; Moser. 

 U. S.: Wetherby; RoeU; MarshaU A. Howe. 

 155. Bryum L.; Hedwig, 



A. Perichetial leaves few, not much differing from the other 

 upper ones. — Leaves gen. entire or faintly denticulate with 

 few teeth, often Umbate; upper cells us. rhomboidal; costa often 

 excurrent. 



a. CiUa of endostome mostly appendiculate. Spores smaU, 

 about 0,01 m, m., r. nearly 0,02 m. m. Capsule r. oblique. 



aa. Capsule thin- walled. Upper leaves setaceous; costa broad. 

 I. Leptobryum. Capsule with long downwards narrowed 

 neck, very nitid (vernicose). Leaves not Umbate; celle subUuear. 

 Stems not julaceous. 



