Encabjpta.] BKYACEyE. Ig]^ 



flowers terminal, on short lateral branches : calyptra long, 

 descending far below the base of the capsule, reddish brown or 

 chestnut color when old, irregularly laciniate at the base : cap- 

 sule cylindrical-ovate, erect or slightly arched, its orifice half- 

 covered by a thin horizontal membrane ; anuulus simple, narrow. 

 — Bryol. Germ. ii. 46, t. 15; Bryol. Eur. t. 198. ^. lacera, 

 DeNot. ; Muell. Syn. i. 514. 



Hab. Fissures of rocks in alpine localities; Rocky Mountains (Drum- 

 mond)\ Colorado [Boionie, E. Hall):, Nevada ( Watson); British America 

 and Alaska {Macoun, Itothrock), etc. 



* * Peristome o/ 16 more or less perfect teeth or none in the 



same species. 



2. E. vulgaris, Iledw. Leaves Ungulate, apiculate, twisting 

 when dry; costa reddish, percurrent or vanishing below the 

 apex ; areolation rectangular at base, very thin toward tlie 

 middle, narrower and yellowish on the borders : calyptra cover- 

 ing the whole capsule, yellowish green, thin : capsule thin, 

 cylindrical-ovate, exactly cylindrical when dry, obscurely or 

 minutely wrinkled lengthwise, pale yellow, the borders of the 

 orifice orange ; peristome generally none, composed when pres- 

 ent of 16 lineate pale fugacious often truncate teeth. — Spec. 

 Muse. 60 ; Bryol. Eur. t. 199. 



Var. obtusa, Schimp. Leaves obtuse. — Syn. 286. 



Var. pilifera, Schimp. Stems shorter: leaves narrower; 

 costa reddish, excurrent into a pale yellow hair. 



Var. elongata, Schimp. Plants robust and much longer, 

 in dense tufts : leaves broader. 



Hab. Fissures of walls and rocks; alpine regions of New England, 

 Rocky Mountains, California, Oregon, and Alaska ; rare in America. 



3. E, rhabdocarpa, Schwaegr. With the habit of the 

 last : leaves oblong, lanceolate above, nearly plane or slightly 

 concave ; costa reddish-yellow, vanishing at the apex or passing 

 up into a more or less elongated yellowish hair-point : calyptra 

 descending below the base of the capsule : capsule shorter, 

 narrowly ovate or cylindrical-oblong, reddish, with longitudinal 

 brown strias, deeply and regularly furrowed when dry ; teeth 

 lanceolate, distantly articulate, entire or here and there irregu- 

 larly perforated, blood-red, rarely pale or absent ; annulus sim- 

 ple, narrow. — Suppl. i. 56, t. 16 ; Bryol. Eur. t. 203. 



Hab. Alpine and subalpine regions, in fissures of rocks; Colorado 

 (,'Do'wnie)\ Nevada [Watson)\ Critisli America and Alaska. 



