392 MUSCI. lirywn. 



8. B. Tozeri, Grev. Stems clustered, 3 to 5 lines high, reddish : lower leaves 

 remote, obovate, the tipper more crowded, long-decurrent, broadly obovate, acuminate, 

 entire, costate to the middle, with loose areolation, surrounded by a narrow reddish 

 border ; on the branches more or less regularly unequal : capsule pendulous on an 

 arcuate pedicel, obovate or pyriform, symmetrical, with broad-conical operculum and 

 double annulus : teeth yellowish, the inner thin and hyaline. Scot. Crypt. Fl. 

 t. 285 ; Bruch & Schiinp. 1. c., t. 353 ; Wilson, 1. c., t. 50 ; Sulliv. & Lesq. Muse. 

 Am.-Bor. Exsicc. 2 ed. n. 272. Webera Tozeri, Schimp. 



Borders of ditches and roads about San Francisco, Oakland, etc., Bigclow, Bolander. European. 



9. B. albicans, Bridel. Loosely cespitose, pale glaucous-green ; stems -|- to 3 

 inches high, erect or decumbent, reddish or dark purple : lower leaves remote, ovate- 

 acuminate, the upper long-lanceolate, serrate above, spreading : male flowers discoid : 

 capsule inclined or pendulous, short-pyriform, green, at length brown, subglobose 

 when dry, with small operculum and no annulus : teeth large, orange. Wilson, 

 Eng. Bot. Suppl. t. 2836. B. Wahlenbergii, Schwaegr. Suppl. t. 70; Bruch & 

 Schirtip. 1. c., t. 354 ; Wilson, 1. c., t. 47 ; Sulliv. & Lesq. Muse. Am.-Bor. Exsicc. 

 n. 275. Webera albicans, Schimp. 



In Dardanelles Canon, and a more slender form on rocks watered by springs near San Francisco 

 (Bolander) j East Humboldt Mountains, Nevada, and in the Wahsatch (Watson) ; Galton Moun- 

 tains (Lyall) ; also European. 



2. Stems mostly innovating from the summit: leaves broader, with rliombic- 

 hexagonal areolation : capsule pyriform : inner teeth interruptedly de- 

 hiscent ; ciliolce when present transversely appendiculate at the joints. 

 BBYUM proper. 



* Inner peristome more or less adherent to the outer : ciliolai often imperfect or 

 none : flowers bisexual and polygamous : leaves cuspidate, costa excurrent. 



10. B. arcticum, Bruch & Schimp. Stems loosely cespitose, 3 or 4 lines high 

 or more, purplish : leaves at length reddish, below ovate-lanceolate, the upper ovate- 

 oblong, acuminate, with revolute margins and ferruginous border : capsule pendulous, 

 clavate-pyriform, slightly incurved, pale brown with reddish mouth, small yellow 

 conic-mamillate operculum, and broad annulus : peristome small, the inner adherent 

 to the teeth, with very short ciliolae. Bryol. Eur. t. 335. Pohlia arctica, R. Brown; 

 Schwaegr. Suppl. t. 172. 



On Mount Dana (Bolander) ; Greenland to Labrador, and in Europe. 



11. B. cernuum, Bruch & Schimp. Densely cespitose; stems branched, with 

 numerous rhizoids : upper leaves densely crowded, rather rigid, erect-spreading, 

 ovate-lanceolate, carinate-concave, the narrowly bordered margin somewhat reflexed, 

 serrate above or entire : capsule pendulous, ovate- or oblong- pyriform, with small 

 persistent apiculate-conic operculum and broad annulus : inner peristome adherent 

 to the outer, the processes and long cilioke only partially free. Bryol. Eur. t. 331 ; 

 Wilson, 1. c., t. 48; Fl. Dan. xv, t. 2613, fig. 2. Cynodontium cernuum, Hedw. 

 Muse. Frond, t. 9. B. pendulum, Schimp. 



On Mount Dana (Bolander) ; West Humboldt Mountains, Nevada (Watson) ; Arctic America 

 to the northern Atlantic States, and throughout Europe. 



12. B. inclinatum, Bruch & Schimp. Resembling the last ; usually less tufted 

 and shorter : leaves more reflexed and usually more broadly margined : operculum 

 a little broader and less acute, sooner deciduous : inner teeth of the peristome free 

 and ciliolse only rudimentary. Bryol. Eur. t. 334 ; Wilson, 1. c., t. 49. Pohlia 

 iudinata, Swartz ; Schwaegr. Suppl. t. 63. 



On rocks at Clark's, Yosemite Valley (Bolander) ; rocks and streainbanks, East Humboldt 

 Mountains, Nevada (Watson) ; Arctic America, and throughout Europe. 



13. B. Warneum, Bland. Loosely tufted, simple or sparingly branched, with 

 nuruerous rhizoids, the innovations more or less flagelliform : leaves spreading, ovate- 



