98 BRYACE.E. [BUnaia. 



35. BLINDIA, Bnich & Schimp. 

 Plants of larger size, densely cesiDitose, branching by innova- 

 tions from under the apex, f astigiate when old. Leaves crowded, 

 open or secund, broadly lanceolate at base, subulate, canalicu- 

 late and costate to the apex, glossy ; areolation narrow, quad- 

 rate toward the apex, linear at base, enlarged and orange- 

 colored at the basilar angles. Flowers dioecious ; i^erichajtium 

 sheathing. Calyptra large, covering the capsule to the middle. 

 Capsule exserted on a long or short jDcdicel, subglobose, solid, 

 inflated at the collum ; peristome of 16 equidistant lanceolate 

 teeth, entire or perforated or bifid at the apex, purple, erect 

 when dry, arcuate and connivent when moistened, distantly 

 articulate. 



1. B. acuta, Bruch & Schimp. Tufts olive or yellowish 

 green ; plants variable in size, one to fifteen cm, long, the 

 slender stem mostly naked in the lower part. — Bryol. Eur. 

 t. 114 ; Braithw. Brit. Moss-Fl. i. 124, t. 17, F. Weisia acvta, 

 Hedw. Muse. Frond. 85, t. 35. Grimmia acuta^ Smith, Engl. 

 Bot. t. 1644. 



Hab. On wet rocks, Rocky Mountains {Drummond) ; Cauterskill River, 

 New York (Lesquereux); Wliite Mountains (James); Oregon (Hall). 



36. BRACHYODUS, Fuernr. 

 Plants very small, densely gregarious. Leaves lanceolate, 

 subulate, tufted, with a semiterete excurrent costa ; areolation 

 minute and quadrate toward the apex, rectangular-hexagonal 

 and smooth in the lower part. Flowers monoecious, terminal ; 

 antheridia without paraj^hyses. Calyptra erect, conical, five- 

 lobate at base, split on one side to near the apex. Capsule 

 gradually enlarged from the top of the pedicel, erect, oblong, 

 soft, substriate ; lid convex at base, abruptly long-subulate, 

 crenulate on the borders. Teeth of the peristome hyaline, 

 punctulate, sometimes perforate, confluent at base, broad and 

 truncate, rarely lanceolate, entire. Annulus compound, very 

 large, persistent. 



