HEDWIGIACEI. 247 



current ; sporangium thin ; peristorae generally wanting ; 

 veil entire at the base, papillose above ; leaf-cells not so dis- 

 tinctly hexagonal as in the last, rectangular at the base; 

 vaginula with a conical crown. There are a few membranous 

 fragments at the base of the veil, but in a far less degree than 

 the next species. 



3. E. ciliata, Hedw. ; monoicous ; leaves oblongo-ovate or 

 ligulate, shortly acuminate, spreading, crisped when dry ; mar- 

 gin recurved below ; nerve excurrent ; sporangium cylindrical, 

 even ; ring none ; veil appendiculate at the base. Hook, fy 

 Wils. t. xiii.; Eng. Bot. t. 1418.; (Moug. $ Nest. n. 609). 



On rocks in alpine districts. Bearing fruit in summer. 



Slightly branched, clothed with rootlets below ; veil with a 

 fringe of triangular delicate shreds, derived from the ocrea ; 

 teeth sixteen, reddish. 



4. E. rhabdocarpa, Schwag. ; monoicous ; leaves erecto- 

 patent, rather twisted when dry, ovato-lanceolate, nearly 

 plane, concave below; margin crenulate, with bipartite pa- 

 pilke; sporangium narrow, ovate, striate, furrowed when dry; 

 ring narrow. Hook, fy Wils. t. xxxii. ; Grev. Sc. Crypt. Fl. t. 

 163.; (Moug. fy Nest. n. 1110.) 



In alpine or subalpine districts, in the crevices of rocks or 

 on the ground. 



Stem rather longer than in the last ; fruitstalk red, twisted ; 

 veil rather short ; sporangium very rarely without any peri- 

 stome, straight and regular ; leaves often apiculate ; leaf-cells 

 at the base lax, rectangular, hyaline, gradually changed up- 

 ward into subhexagonal. 



c. Peristome double. 



5. E. streptocarpa, Hedw. ; dioicous; stem elongated, 

 branched; leaves erecto -patent, when dry loosely imbricated, 



