SYNOPSIS OF BEITISH MOSSES. 39 



oval or oblong, straight or curved, lid convex, with a 

 short beak. Annulus broad. Periat. t. lanceolate- 

 subulate, thin, hyaline, processes from a basal mem- 

 brane as long as or longer than teeth, with or without 

 cilia. 



116. Pylaisia, Schp. St. creeping or erect, pinnate. 

 Br. short. L. patent or secund, silky. Calyptra 

 long-beaked, half-length of caps., which is oval>^ 

 oblong, and subcylindric, often slightly curved. Perist. 

 t. densely articulate, solid, processes from a narrow 

 basilar membrane, as long as teeth, linear-subulate, 

 carinate or split. 



117. Homalothecium, fifc/fj}. Robust, partly creeping, 

 partly erect, irregularly branched. L. silky, sulcate, 

 thinly nerved, cells narrowly linear. Caljrptra large, 

 sometimes slightly hairy. Caps, erect, on a smooth 

 or papillose seta, oblong-elongate, straight or slightly 

 curved, lid with a short beak. Perist. int. membrane 

 narrow, processes slender, shorter than teeth, with or 

 without cilia. 



Fam. 3. Camptotheoiae. 



L. patent, scariose, shining, nerved, sulcate, cells 

 linear or vermicular, quadrate at angles. Caps, ob- 

 long, cernuous, when dry arcuate, horizontal. Int. 

 perist. processes and cilia perfect. 



118. Camptothecium, Schp. Habit and leaves of 

 117. Caps, incurved, cernuous, on a rough or smooth 

 seta, lid shortly rostrate or conical. Int. perist. a 

 broad basal membrane, processes with long cilia. 



Fam. 4. Brachytheciffl. 

 Generally prostrate, irregularly branched. L. 

 generally patent, rarely secund, / subcordate-ovate. 



