Barbula] BEYACE^. 119 



old, cylindrical, erect ; pedicel long, slender, yellow ; lid straight, 

 reddish : the inflorescence, peristome, and annulus as in the 

 last species. — Sulliv. & Lesq. Muse. Bor.-Am. Exsicc. (ed. 2) 



n. 140. 



IIab. On stones, in springs near San Francisco, California (Bolander) ; 

 Fort Colville (Waison). 



11. B. brevipes, Lesq. Dioecious: gi-egarious or subces- 

 ]ntose ; stems very short, simple : leaA^es rosulate. Ungulate or 

 oblong, cuneiform, obtuse, revolute on the borders, carinate, 

 concave in the upper part ; costa excurrent into a short hair- 

 like smooth point : male plants slender ; flowers terminal : cap- 

 sule long, cylindrical, slender, subincurved; lid long-conical, 

 obtuse; peristome syntrichial; basilar membrane long, quad- 

 rately tessellate ; teeth long, closely twisted, blood-red ; annulus 

 large, compound. — Mem. Calif. Acad. i. 12. 



Hab. Mud walls, Mission Dolores, in mats an inch in diameter or 

 more, and on the llussian River divide, California (Bolander); Western 

 Nevada (Watson). 



Related in the mode of growth and characters of the leaves to the three 

 preceding species, but differing in the long tubular membrane of the 

 peristome, which is like that of B. canescens, a stouter species which has 

 the areolation of the leaves smaller and close, and a monoecious inflor- 

 escence. 



12. B. muralis, Timm. Monoecious : pulvinate or cespi- 

 tose tufts whitish green ; stems ^ to 2 cm. long : lower leaves 

 oblong-lanceolate, the upper long-lingulate, unequal sided at 

 the very papillose apex, closely revolute, thus appearing mar- 

 ginate ; costa broad, passing beyond the apex into a more or 

 less elongated hair-point ; areolation small, indistinct in the 

 upper part, loosely rectangular and hyaline in the lower : male 

 flowers gemmiform in separate branchlets : capsule ovate-oblong 

 or subcylindrical, regular, brown ; lid long-beaked, slightly 

 curved; teeth attached to a very narrow membrane, closely 

 twisted ; annulus compound. — Fl. Megap. 220 ; Bryol. Eur. 

 t. 159. Bryum murale^ Linn. Spec. PI. 1117. Tortida 

 muralis^ Hedw. Fund. Muse. ii. 92 ; Lindb. Trichost. 239. 



Hab. On rocks, Pennsylvania (T. C. Porter); California (Bolander); 

 Charleston, S. C. (J. Donnell Smith); Norfolk, Virginia (James); on stone 

 walls, Lodi, New Jersey (Austin). 



Yery variable in the size of the plants and of the capsule, and in the 

 shape of the leaves, which are lanceolate or obtuse or even obcordate at 

 the apex, with the hair-like point varying in length. 



