Bryum. MUSCI. 395 



slender innovations : leaves strongly twisted when dry, more or less spreading, 

 oblong-obovate, abruptly acuminate with a rather long remotely serrulate apex, 

 plano-concave with retlexed margin and yellowish border : capsule more or less pen- 

 dulous or inclined, oblong-pyriform or subclavate, reddish brown, slightly contracted 

 below the mouth when dry; operculum reddish, large, apiculate. — Schwaegr. 

 Suppl. t. 74 ; Engl. Bot. t. 2007 ; Bruch & Schimp. 1. c, t. 368 ; AVilson, 1. c, 

 t. 29 ; Fl. Dan. t. 2685. 



On Monte Diablo (Z>r. Gibbons); Vancouver Island (Z^/aZ?) ; Wahsatch Mountains ( /Frtfeojt) ; 

 Alleglianies ; Europe. A very variable species. 



23. B. OCCidentale, Sulliv. A very similar and variable species, with slender 

 innovations thickened in the middle : leaves erect, appressed, not twisted, elliptic 

 to oblong-lanceolate, acuminate and long-cuspitlate, margin scarcely recurved and 

 without border : capsule much contracted when dry, — Pacif. R. Kep. iv. 188, t. 7 ; 

 8ulliv. & Lesq. 1. c. 2 ed. n. 283, 284 ; Lesq. in Mem. Calif. Acad. i. 24. B. obconi- 

 cif-m, Sulliv. & Lesq. 1. c. 1 ed. n. 187^ B. Baueri, Hampe, Linnoea, xxx. 457. 



Very common on the ground, rocks, old logs, etc., Bigelow, Brewer, Bolandcr. Referred to the 

 last species by James (Bot. King Exp. 406), aud doubtfully by Lesquereux, 1. c. 



24. B. obconicum, Hornsch. Also closely resembling B. capillare, but the 

 paler leaves more gradually acute and never obovate or narrower at base, erect and 

 not twisted or but slightly so when dry, the yellowish bordered margin reflexed 

 only toward the base : capsule pendulous, long-obconic and attenuate into the 

 pedicel, with hemispherical operculum. — Bruch & Schimp. 1. c, t. 367; Wilson, 

 1. c, t. 49. 



Santa Cruz Mountains, at 2,000 feet altitude, Brewer. Europe. 



B. I'ALT.ENS, Swartz. Has been collected in Oregon {Hall>i ; resembling B. uliginosum, but 

 with dioecious flowers and perfect peristome, the operculum much larger, and reddish leaves with 

 slightly thickened reflexed margins. — Muse. Suec. t. 4 ; Schwaegr. Suppl. t. 72 ; Bruch & 

 Schimp. 1. c, t. 373 ; Wilson, 1. c, t. 29. 



++ ++ Costa ceasing at or below the apex. 



25. B. argenteum, Linn. Irregularly cespitose, greenish white, silvery-silky 

 when dry : stems 3 to 12 lines long, fragile, very radiculose, with slender julaceous 

 branches : lower leaves ovate, abruptly apiculate, the upper oblong-lanceolate, all 

 deeply concave, entire, loosely areolate, the margin fiat and costa ceasing above the 

 middle : capsule pendulous, oblong, red becoming blackish and constricted below 

 the mouth ; operculum convex : teeth orange, paler above, on drying incurved 

 among the erect cilia. — Smith, Engl. Bot. t. 1602 ; Bruch & Schimp. 1. c, t. 384 ; 

 Wilson, 1. c, t. 29 ; FL Dan. xiv, t. 2381, fig. 2. 



Near San Francisco (Bolander) ; in southern part of the San Bernardino Eange (Bigelotv) ; 

 Carson City ( Watson) ; Arctic America to the Atlantic States, and found in ncjarly all quarters of 

 the globe. 



26. B. Californicum, Sulliv. Densely cespitose; stem and innovations very 

 short and budlike : leaves concave, subquadrate-ovate, shortly apiculate, with flat 

 entire margin, the costa ceasing at the apex : capsule pendulous, dark-red, oblong or 

 oblong-ovate, the collum as thick, obtuse at base and rugose when dry ; operculum 

 minute, hemispherical : teeth pale purple, remotely jointed, with solitary short 

 nnappendaged ciliolse. — Pacif. R. Rep. iv. 188, t. 6; Sulliv. »fe Lesq. 1. c. 2 ed. 

 n. 292. 



Near Benicia {Bifjdorv), and common around San Francisco (Bolandcr). 



27. B. Bigelovii, Sulliv. Loosely cespitose ; stem 1 or 2 inches high, very 

 slender, several tiniL's innovating from the apex : leaves dark yellowish green, the 

 lower small and distant, the upper larger, imbricate, erect-spreading, oblong-ovate, 

 the uppermost lanceolate and acuminate, concave, margins scarcely recurx'ed and 

 nearly entire, the stout costa ceasing at or below the apex : capsule subpondnlous. 



