132 BRYACE^. [Barbula. 



44. B. l86Vipila, Bruch & Schimi). Monoecious : plants 



long and robust, in dense tufts, dichotomous, tonientose-radicu- 



lose at base : leaves glaucous green, brownish when old, open 



or recurved at the apex, oblong-obovate and spatulate, entire or 



surrounded by a broad yellow margin of round-hexagonal cells, 



rounded and emarginate at the aj^ex ; costa reddish-brown, 



passing above into a white filiform mucro, either smooth or 



dentate at the apex ; upper areolation very dense : cajasule 



oblong-cylindrical, slightly arched, solid, dark brown; pedicel 



short, purplish, twisted to the left when dry ; lid slender, 



conical ; tubular membrane one-third the length of the i:)eri- 



stome ; teeth closely and many times twisted. — Bryol. Eur. t. 



164. Tortilla Icevijyila, Schwaegr. Suppl. ii. 66, t. 120 ; Lindb. 



Trichost. 245. 



Hab. Foot of Monte Diablo {Bolander), and Duncan's Mills, Cali- 

 fornia {Watson); Nevada {Watson); Vancouver Island (Lyall). 



45. B. latifolia, Bruch & Schimp. Dioecious : i^lants ir- 

 regularly and loosely ces2)itose, dark green or blackish : lower 

 leaves distant, oblong-obovate, the inner tufted, lingulate, close, 

 spreading, twisted or complicate when dry ; costa vanishing 

 below the emarginate apex or passing a little beyond it : cap- 

 sule short-pedicellate, oblong-cylindrical, brown ; basilar mem- 

 brane of the peristome one-third its length ; teeth long, many 

 times twisted; annulus simple, narrow. — Bryol. Eur. t, 164. 

 Tortula latifolia, Hartm. ; Lindb. Trichost. 243. 



Hab. On fence-posts close to the water of a creek near San Rafael, 

 California {Bolander); on trunks of Alnus viridis, Colorado {E. Uall). 



46. B. ruralis, Hedw. Dioecious : plants widely tufted, 

 whitish green above, brown-ferruginous below : leaves close at 

 the apex, more distant along the stem, recuiwed-squarrose from 

 the middle, half-clasping or subsheathing at base, large, oblong, 

 rounded or emarginate at the apex, tlie costa passing above into 

 a long flexuous whitish spinulose awn ; inner perichaitial leaves 

 ovate, costate, acute : capsule oblong, subincurved, on a long 

 pedicel reddish at base and yellowish above ; operculum long, 

 conical-acuminate ; peristome very long, tubulose nearly to the 

 middle; teeth purple, closely twisted. — Fund. Muse. ii. 92; 

 Bryol. Eur. t. 166. Bryiim ruraU, Linn. Sp. PI. 1116. Tor- 

 tula ruralis, Ebrh. ; Lindb. Trichost. 246. 



Hab. On dry rocks, old trunks, sterile ground, etc. Especially com- 

 mon on the Pacific slope. 



