196 HANDBOOK OF BRITISH MOSSES. 



oblong, abruptly hair-pointed ; sporangium cernuous, oblongo- 

 pyriform, clavate or obovate; lid apiculate. — Hook. §■ Wils. 

 t. xxix.; Eng. Bot. t. 1862 (in part), 2007, 2434.; (Moug. fy 

 Nest. n. 33.) 



On walls, rocks, trees, etc. Very common. Bearing fruit 

 in spring. 



A very variable species, distinguished from B. ceespilicium 

 by the form and character of the leaves. The lower leaves 

 are not so broad in the middle; margin reflexed, narrow- 

 celled, entire or slightly toothed; nerve ceasing . below the 

 apex or excurrent. 



19. B. otaconicum, Hornsch. ; dioicous; tufted, radiculose; 

 upper leaves crowded, erecto-patent, scarcely twisted when 

 dry, pointed ; nerve excurrent, forming a long hair-point ; 

 margin revolute, narrow-celled but not thickened; sporan- 

 gium pendulous, clavate, long-necked; lid mammillary. — 

 Hook. $ Wils. t. xlix. 



On walls. Barnard Castle, Mr. Spruce. Bearing fruit in 

 summer. 



Intermediate between B. ccespiticium and capillare. It 

 differs from the latter in the leaves not being narrow towards 

 the base, in their being scarcely twisted and somewhat imbri- 

 cated, in the longer neck of the sporangium, which is narrower 

 and pendulous, on a more arched fruitstalk; from the former, 

 in the narrowly obconical, symmetrical sporangium, which 

 has a polished cartilaginous border when dry. 



20. B. Donianum, Grev. ; dioicous ; leaves spreading, 

 slightly crisped when dry, but not decidedly twisted ; ovato- 

 oblong, with a narrow thickened border, slightly serrated 

 above; nerve scarcely excurrent; sporangium conico-clavate, 

 subpendulous ; lid apiculate. — Hook, fy Wils. t. xlix. ; Grev. 

 in Linn. Tr. vol. 15, t. 3,/. 6. 



