94) HISTORY OF BRITISH MOSSES. 



the light which reaches the caves in which they grow. 

 Found first in the south of England^ but subsequently in 

 various districts of the north, and especially so in Lan- 

 cashire, whence our valued correspondent Mr. Nowell has 

 sent numerous and beautiful specimens. 



BARTRAMIDULA, Br. et ScL (Bahtramidula.) 



A diminutive of Bartramia, from which it is chiefly dis- 

 tinguished by the want of a peristome. 



Generic Character. — Seta terminal. Capsule subglobose, with- 

 out peristome. Calyptra dimidiate, very fugacious. 



1. Bartramidula "Wilsoni. {Mr. Wilson's Bartrami- 

 dula.) Stem short, prostrate, and furnished with fibres ; cau- 

 line leaves short, lanceolate, the upper ones secund or sub- 

 falcate, perichastial ones longer and thinner; the nerve dis- 

 appearing below the point ; capsules (1-5 together) curved 

 in a horizontal direction, smooth, and finally shrivelled ; lid 

 minute, convex. — Glyphocarpa cernua, Wilson in London 

 Journal of Bot. 1841, pt. 8. Bartramia Wilsoni, Miill. 

 Syn.pt. 1. p. 479. 



On Cannon Hill in Ireland, and on the Clova mountains 



