MOSS HABITATS. 



53 



he will find the Sphagnums most abundant, and such mosses 

 as Bartramia fcntana, Mnium subglobosum, Hypnum cuspi- 

 datum, Aulacomnion palustre, and many other species, which 

 space will not permit me to name. 



Bartramia fontana is 

 a frequent denizen of our ^ 



Warwickshire marshes, 

 but rarely in fruit (fig. j 



27). It occurs in more 

 or less dense tufts of a \ 



glaucous green colour, 

 and has the stems much 

 matted together by red- 

 dish rootlets; the leaves 

 are mostly ovate, with a. 

 prolonged point, have 

 reflexed margins, and 

 are slightly plicate at 

 the base ; the cells are 

 small and quadrate ; 

 the leaf-margin bluntly 

 toothed ; the capsule is 

 roundish, curved, mark- 

 ed with deep longitudi- 

 nal furrows (fig. 27, 3), 

 and reddish brown when 

 ripe ; fringe double ; lid 

 convex. 



Mnium subglobosum 

 is a more local moss, 

 but abundant in some 

 marshes, occurring in 

 dark-green tufts (fig. 28). 

 The leaves are large, 

 roundish, blunt, bordered with one or two series of elongated 

 cells (fig. 28, 3 a), the principal portion of the leaf being 

 formed of largish, roundish, hexagonal cells (fig. 28, 3 b} ; 

 the capsules roundish, with a small, shortly beaked lid (fig. 

 28, 2 a) ; fringe similar to that of the Bryums. 



FIG. 27. Bartramia {Philonotis} fontana. 

 i, plant natural size. 2, dimidiate calyptra. 

 3, furrowed capsule. 



