156 BRITISH MOSSES. 



Fig. 11. Beyum Donianum. 



Don's Thread Moss (a) . 



Golour. Light green. 



Stems. Short, branched; radiculose; tufted. 



Leaves. Ovate-oblong ; apex serrated, border narrow, slightly crisped. 



Flowers and Fruit. Dioicous ; seta long; capsule conical, horizontal ; lid apiculate. 



Locality. Rocks and dry places. Rare. 



Fig. 12. Beyum Billaedeeii. 



Billardiere's Thread Moss (a) . 



Colour. Light green. 



Stems. Branched, innovations short. 



Leaves (b). Ovate, serrulate, concave ; margin recurved below ; in whorls. 



Flowers and Fruit. Dioicous ; barren in Britain. 



Locality. Wolsonbury Hill, Hurst Pierpoint. 



Fig. 13. Beyum c^spiticum. 



Lesser Matted Thread Moss (a) . 



Colour. Yellow green. 



Stems. Branched, and with innovations also, short, tufted, radiculose. 



Leaves (b) . Ovate-lanceolate ; larger at the summit ; margin reflexed, straight 



when dry, erecto patent. 

 Flowers and Fruit. Dioicous ; seta long ; capsule pendulous, varying from 



ovate to pyriform. Summer. 

 Locality. Walls, &c. Common. 



Fig. 14. Beyum sanguineum. 



Fwrple Thread Moss (a) . 



Colour. Red purple. 



Stems. Short, in patches, with innovations. 



