136 HISTORY OF BRITISH MOSSES. 



On wet rocks, especially in the course of mountain rivu- 

 lets. Fr. Spring. Easily distinguished by its obtuse foliage, 

 which is almost black when growing under water. A variety 

 dcnticulata has been described, with the leaves more spread- 

 ing and remotely toothed. 



8. Trichostomum PASCicuLARE, Schrad. {Beardless Hoary 

 Fringe IIoss.) Stems elongated, branched ; leaves lanceo- 

 late, entire, their summits never diaphanous, their margins 

 recurved ; capsule ovato-oblong ; lid rostrate. — Ung. Fl. p. 

 34. Grimmia fascicularis, Mull. Syn.pt. \. p. 809. 



Moist rocks, in alpine and subalpine districts. Fr. Spring. 

 "The acute, entire leaves, and brighter yellowish-green 

 colour of this plant, distinguish it easily from the preced- 

 ing.''^ From T. caneseens it is known by the leaves want- 

 ing the diaphanous points. It does not seem to be so com- 

 mon on the Continent as in Britain. 



9. Trichostomum polyphyllum, Schwsegr. {Many-leaved 

 Fringe Moss.) Stems tufted, branched ; leaves lanceolato- 

 subulate, their margins recurved, serrated above, very much 

 crisped when dry ; capsule oblong ; lid rostrate. — Eng. Fl. 

 p. 34'. Brachystelium polyphyllum, Milll. Syn.pt. l.p. 767. 



Walls and rocks, especially of trap, in subalpine districts. 

 Fr. Spring. Yery different in appearance from all the 



