3r)6 MUSCI. Bnjum. 



oblong- or elliptic-pyriform, not contracted below the throat when dry ; operculum 

 rather large, convex-conic, stoutly apiculate. — Pacif. E. Eep. iv. 187, t. 5. 



Banks of streams above Souora, Tiiolunuie County, Bigcloiv. Considered by Sullivant as most 

 nearly resembling B. albicans. 



28. B. miniatum, Lesq. Densely cespitose, purplish and abruptly crimsoned 

 at the ends ul' tlie branches ; stems slender, simple or several times branched, the 

 innovations sometimes very slender and filiform : leaves appressed when dry, loosely 

 imbricated, the upper crowded into a head, concave, ovate or ovate-lanceolate, obtuse, 

 margin scarcely reliexed and scarcely or not at all bordered, the stout costa ceasing 

 below the apex, areolation polygonal, thick-walled : capsule inclined, elongated 

 obconic, somewhat contracted below the mouth when dry, reddish, with reddish 

 mamillate operculum. — Mem. Calif. Acad. i. 23. 



Moist rocks, Yosemite Valley, Bolander. Eesembling the last, but with longer capsule and 

 shorter obtuser leaves. 



29. B, Atwateriae, jNIuell. Stems stout, more or less elongated, in compact 

 tufts bright scarlet or yellowish above : leaves erect, closely imbricated, ovate or sub- 

 orbicular, strongly concave, very obtuse and subcucullate at the apex, entire, scarcely 

 or not at all bordered ; areolation ratlier close, rhombic, below subquadrate : capsule 

 horizontal or sul;)pendulous, narrowly elliptical upon a rather long collum, deep red ; 

 operculum conic, acutish : peristome red. — Flora, Iviii. 7G. B. Macotmii, Austin, 

 Coult. Bot. Gazette, ii. 110. 



On wet rocks at Yosemite Falls {Mrs. Atwater) ; Oregon {Hall) ; Vancouver Island, Macoun. 



^- -1— ^— -I- Flowers dioecious; male flowers subdisco Id : costa conthiuous to the 



acute apex. 



30. B. Duvallii, Voit. Loosely and very softly cespitose, becoming bright 

 purple or purplish green ; stem elongated, at length decumbent, slender, with long 

 and very slender branches, rooting only at base : leaves remote, spreading, subequal, 

 broadly ovate-lanceolate, long-decurrent, nearly flat, entire, loosely areolate, much 

 contracted and curved when dry : capsule pendulous, brown, obovate-oblong, sym- 

 metrical, contracted below the mouth when dry ; operculum mamillate. — Schwaegr. 

 Suppl. t. 79 ; Bruch & Schimp. Bryol. Eur. t. 371 ; Fl. Dan. t. 2684. 



Eureka {Bolander) ; East Humboldt Mountains, Nevada ( Watson) ; Fort Colville, Washington 

 Territory {Lijall) ; Newfoundland and the White Mountains ; Europe. 



31. B. pseudotriquetrum, Schwaegr. Widely cespitose, olive- or brownish- 

 green ; stems erect, sparingly branched, 1 to 3 (or 6) inches high, tomentose : leaves 

 gradually enlarging upward and more crowded, more or less spreading, incurved or 

 twisted and rigid when dry, subdecurrent, elliptic- to oblong-lanceolate, serrulate at 

 the apex, margin reflexed with yellow border, rather narrowly areolate : capsule 

 inclined, rarely pendulous, long-obconic, frequently incurved, constricted when dry ; 

 operculum mamillate. — Bruch & Schimp. 1. c, t. 364 ; "Wilson, 1. c, t. 30. Mnium 

 pseudotriquetrum, Hedw. Muse. Frond, iii, t. 7. 



On wet rocks, Calaveras Grove {Bolander) ; Fort Colville {Lyall) ; Ohio ; Europe. Very vari- 

 able. Pedicel in the taller specimens 3 inches long. 



32. B. turbinatum, Schwaegr. More or less densely cespitose, pale green or 

 reddish ; stems i- to 3 inches high, simple or sparingly branched : leaves below 

 ovate, concave, the upper crowded, oblong-ovate to long-lanceolate, obsoletely serrate 

 at the apex, the very narrowly bordered margin reflexed : capsule pendulous, thick- 

 pyriform, much constricted below the broad mouth when dry ; operculum convex, 

 apiculate : peristome large, yellowish, the ciliolse long-appendiculate. — Bruch & 

 Schimp. 1. c, t. 373 ; Wilson, \. c, t. 48. 



Var. latifolium, Bruch & Schimp. Stouter and taller, with the bright green 

 leaves 2 or 3 times largei' more concave and not carinate, the flat or slightly recurved 



