74 



SYNOPSIS OP BRITISH MOSSES. 



Kent (Holmes), 1874 



N.B. — Nos. 75, 76 are hitherto sterile in Britain. 



77. D. viride, Bull, and Lesq. Dioicous, in dense 

 cushions, or casspitose, reddish and tomentose at base, 

 above dark green. Branches dichotomous. L. oblong- 

 lanceolate, subulate, scarcely twisted when dry, basal 

 cells enlarged, lax, hyaline, above small, quadrate, not 

 serrulate, nerve running out in the concave awl ; per. 1. 

 sheathing. Caps, erect, oblong, slightly incurved, lid 

 with a long beak. 



Trunks of trees, &c. Eare. Juljj August. 



Staffordshire (Mr. Bloxam), 1864 



78. D. Scottianum, Turn. (D. Scottii, Br. M. Fl.). 

 St. 2 or 3 inches, robust. L. erecto-patent, subsecund, 

 incurved, lanceolate-subulate, slightly twisted at apex 

 only when dry, concave, entire, basal cells elongate, 

 thickened, upper small, quadrate, nerve strong, excur- 

 rent. Caps, elongate, slightly curved, tapering at 

 base, lid obliquely rostrate. 



Rocks in mountainous districts. Not common. 



July, August. 

 Ireland, South of England, Argyle, &c. 



79. [D. Sauteri, B. and 8. Differs from above in its 

 leaves being more subulate, slightly serrulate at apex, 

 and the basal alar cells very long. 



Its var. /S. CUEVULUM, which has its caps, horizontal 

 and curved, is supposed to be British, from specimens 

 in Herb. A. 0. Black (Braithwaite).] 



80. D. longifolium, Medw. Csespitose, tufts pale 

 green or whitish. St. arcuate or geniculate, ascending, 

 slightly radiculose. L. long, falcato-secund, rarely 

 spreading, longly subulate from a lanceolate base, 

 nerve very broad, margin and back serrate at apex; 



