216 BRYACEJE. [Webera. 



Subgenus I. POHLIA. 



Lower leaves small, distant, the upper much longer, tufted. 

 Capsule long-necked, cernuous or horizontal. Inner membrane 

 narrow, with the segments entire, and cilia none or very short. 



* Flowers monoeciouSy the male gemmiform and terminal. 



1. W^. acuminata, Schimp. Lower leaves erect, the 

 upper linear-lanceolate, irregularly dentate at the apex ; borders 

 reflexed toward the base ; costa vanishing under the apex or 

 excurrent : capsule narrowly elliptical, on a long i^edicel curved 

 in the upper part ; lid long-conical, acute or subrostellate, red- 

 dish at the base ; peristome large ; segments long and narrow, 

 entire ; cilia none. — Coroll. 64, and Syn. 330. Pohlia acumi- 

 nata, Hoppe & Hornsch., Kegensb. Flora, ii. 1. 94. Bryiim 

 acuminatum, Bruch & SchimjD. Bryol. Eur. t. 343. 



Hab. Adirondack Mountains, near North Elba [Lesquereux)\ Wis- 

 consin (LapJiam)- Colorado (Rothrock, Wolf); Rocky Mountains (Dntm- 

 mond, Hall). 



* * Antheridia hypogynous, axillary. 



2. W. polymorpha, Schimp. 1. c. Loosely cespitose : 

 comal leaves open, lanceolate from an oblong base, sharply ser- 

 rate toward the point ; borders reflexed at base ; costa vanish- 

 ing below the apex : capsule oval-oblong, short-necked, horizon- 

 tal or inclined, constricted under the orifice after the dehiscence 

 of the conical obtuse or raamillate lid ; pedicel straight or flex- 

 uous ; inner peristome without cilia. — Pohlia ^yolymorpha, 

 Hoppe & Hornsch. 1. c. 100. Mryum polymorphum, Bruch & 

 Schimp. Bryol. Eur. t. 344. 



Hab. Oregon (Hall); Mount Dana, California {Bolandei-); Sitka 

 (Bischoff). 



This species is subject to many varieties, like the last, from which it 

 differs in its smaller less solid ovate-lanceolate (not linear) leaves, more 

 distinctly serrate, the areolation shorter, and broader at tlie base, the 

 costa not as thick, the capsule shorter, narrowed under the orifice when 

 deoperculate, and the lid shorter. 



3. "W. elongata, Schwaegr. Cespitose or gregarious : 

 comal leaves long-lanceolate, open-erect, narrowed and serrate 

 at the apex, recurved in the middle, thin ; areolation narrow, 

 nearly linear in the upper part, hexagonal-rectangular below : 

 capsule narrowly elliptical, long-necked, erect, and constricted 



