48 



BRITISH MOSSES. 



II. Leaves nerved. 

 Fig. 4. Andre^a eothii. 

 Black Mountain Moss (a) . 



Colour. Brownish-black. 



Stems. Half-inch long-, branched. In loose tnfts (incoherent) . 



Leaves (b) . Long, narrow, and curved like a sickle, lying over each other on 



the stem (falcato-secund) ; awl-shaped at the end {subulate) . Those of 



the perichsetiuin (c) twice the length of the others. 

 Capsule. Buried in the leaves (immersed) . 

 Locality. On mountain rocks. 



Fig. 5. Andre^a nivalis. 

 Snow Moss (a) . 



Colour. Greenish or reddish-brown ; paler than the other species. 

 Stems. One to three inches long, sparingly branched. 



Leaves (b) . Sickle-like (falcate) , imbricated loosely, running iuto a point at the 

 end (subulate), much longer than in the other species; the perichastial 

 leaves the same, but turning round the stem (convolute) . 



Capsule. Almost immersed. 



Locality. Rocks at the line of perpetual snow ; on Ben Nevis and other 

 mountains of Scotland. — Wilson's " Bryologia Britannica." 

 All the species of Anclrecea bear fruit in the summer. 



