116 HISTORY OP BRITISH MOSSES. 



Oji shady rocks, chiefly such as are calcareous. The 

 principal localities recorded are in the midland counties of 

 England, and near Belfast. 



18. Weissia VERTiciLLATA, Schwsegr. {Whorled JJ'eissia.) 

 Stems elongated, branched; leaves nearly erect, linear-su- 

 bulate, with a strong nerve, dotted ; capsule ovate ; lid co- 

 nico-acuminate. — Evg. Fl.p. 28; Milll. Spi.pt. l.p. 656. 



On dripping rocks, especially such as are in some degree 

 calcareoas, but not very common. We have gathered it in 

 Berwickshire, and there are several stations recorded in Fife 

 and the Lothians ; Dargle river, Ireland. Fr. August. It 

 is a neat and beautiful Moss, of a pale and bright green 

 colour, and the lower branches are frequently covered with 

 a white incrustation deposited from the dripping waters 

 amid which it grows. 



19. Weissia acuta, Hedw. {Sliarp-pointed Weissia.) 

 Stems branched ; leaves subulato-setaceous, subsecund, rigid, 

 canaliculate ; capsule turbinate ; lid rostrate. — Eng. Fl. p. 

 24. Blindia acuta, Milll. Sgn. pt. 1. p. 342. 



Moist alpine rocks, abundant. Fr. Summer. Even those 

 botanists who are no muscologists can scarcely avoid meet- 

 ing and admiring this interesting alpine Moss, as it decks 

 the mountain's brow, associated with the wild flowers of 

 summer, and the brown tints of its foliage present an 



