72 STNOPSIS OF BRITISH MOSSES. 



nerved to apex. Caps, subcylindrical, arcuate, slightly 

 strumose, striate, lid with a long curYcd beak. 



Moors and bogs. Not common. July- 



Section 3. APORODIGTTON. 



Plants of medium size, radiculose. L. lanceolate- 

 subulate, their cell walls not interrupted by pores. 

 Caps, cernuous or erect, cylindraceous, curved or 

 symmetric. 



a. Caps, cernuous, curved. 



72. D. congestum, Brid. St. erect, 1 — 2 inches, 

 densely tomentose. L. crowded, linear-lanceolate, 

 secund, coarsely serrate above, nerve narrow, thin, 

 scarcely reaching apex, where it is sometimes distantly 

 toothed, upper cells larger than in fiiscescens, and 

 irregular in form. Caps, ovate-oblong, with a long-, 

 beaked lid. Dioicous. 



Mountain rocks. Very rare. August. 



Ben Lawers, 1878 (Boswell). 



Var. yS. ilexicaule. St. longer, flexuose. L. longer, 

 almost entire. 

 Eare. 

 Ben Lawers, Lochnagar, Teesdale. 



73. D. fuscescens, Turn. St. 2 — 4 inches, loosely 

 tufted, tomentose. L. spreading, subsecund, flexuose, 

 canaliculate, minutely toothed at apex, nerve broad, 

 excurrent, forming the whole of the subula, lower cells 

 rectangular, upper small, quadrate, papillose at back. 

 Caps, oblong, incurved, furrowed when dry, lid with a 

 very long beak. Dioicous. 



Alpine and subalpine rocks. Frequent. August. 

 Var. yS. vAhcimuvM, Bralth. "L. allfalcato-secund,, 



