SYNOPSIS Of BRITISH MOSSES. 29 



16-carinate cone, or single, of 32 teetli on a membranous 

 base, interlaced below, free above. Calyptra mitriform 

 or dimidiate. 



Fam. 1. Cindidotae. 



L. in 5 — 8 rows, parenchymatous, flexuose, nerve 

 excurrent, areolae small, opaque. Perist. single. 



86. Cinclidotus, P. Beauv. L. patent, solid, nerve 

 strong, excurrent. Caps, immersed on a short seta, 

 ovate-oblong, sulcata when dry. Perist. large, t. more 

 or less perfect, somewhat twisted. 



Fam. 2. Fontinalidse. 



Calyptra conico-mitrate, yaginula imperfect. Caps, 

 immersed in perichsetium. Perist. double, internal a 

 handsome olathrate 16-carinate cone. L. tristichous, 

 cells prosenchymatous. 



87. Fontinalis, DiZZ. St. slender. Br. fasciculate. L. 

 deeply concave and carinate, the two blades being 

 almost folded together, nerveless, cells narrowly rhom- 

 boid and vermicular, laxer in auriculate angles. Perist. 

 double, as above. Annulus absent. Dioicous. 



Fam. 3. Diehelymese. 



L. narrow, thinly nerved. Caps, immersed or ex- 

 serted. Perist. double, int. either a clathrate cone or 

 of free cilia. Calyptra dimidiate or shortly cucullate, 

 vaginula distinct. 



88. Dichelyma, Myr. PI. more or less distinctly 

 pinnate-branched. L. long, narrow, generally subulate, 

 subfalcate, cells rhomboid. Per. 1. long, outer imbri- 

 cate, inner convolute. Caps, and perist. as above. 



