112 SYNOPSIS OP BRITISH MOSSES. 



nerve thick, bearing short articulate threads above, 

 papillose on the back, and . excurrent into a smooth 

 hair-point from suddenly tapering apex, a few hyaline 

 cells at base. Fr. not known. 

 Trunks of trees, &c. 



202. B. prinoeps, Be Not. {T. Mulleri, B. and S.). 

 St. 1 — 2 inches, caespitose, with brownish radicles.' 

 L. erecto-patent, oblong, broad, concave, fawn-coloured, 

 margin reflexed, nerve excurrent into a short, scabrous 

 hair-point, from a rounded, obtuse apex. Caps, cylin- 

 drical, straight or curved, on a purplish seta. One-half 

 peristome tubular. Synoicous. 



Rocks. Summer. 



Scotland, Ireland.. 



Tribe xi. Caltmpeeacej;. 



38. ENCALYPTA, Schreb. 



a. Peristome absent. 



203. E. commutata, N. and H. St. about 1 inch, 

 branched, radiculose. L. squarrose, lower ovate- 

 lanceolate, upper elongate-acuminate, concave, acute, 

 transversely plicate, nerve ex;current. Caps, smooth, 

 cylindrical, with a long beaked lid. Calyptra jagged, 

 but not fringed at base, longer than capsule, brown at 

 apex. Monoicous. 



Alpine summits. July? August. 



Scotland. 



h. Peristome single. 



204. E. vulgaris, Hedw. St. about i inch, branched, 

 radiculose. L. spreading, elliptic-lanceolate, oblong, 

 acute or obtuse, subundulate, apiculate, nerve sometimes 

 excurrent, margin plane. Caps, smooth, cylindrical. 

 Base of calyptra entire. Perist. very fugacious of 16 

 teeth. Monoicous. 



