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BRITISH MOSSES. 



Fig. 12. Orthotrichum obtusifolium. 



Blunt-leaved Bristle Moss {a) . 



Colour. Yellowish green. 



Stems. Very short, very little branched. 



Leaves. Broadly lanceolate, apiculate, serrated above ; margin recurved below ; 



areolas large, larger below. 

 Capsule. On short pedicel, pyriform. Summer. 

 Locality. Very rare. Near York. Mr. Wilson. 



Fig. 13. Orthotrichum diaphanum. 

 Pointed-leaved Bristle Moss (a) . 



Colour. Yellow green. 

 Stems. Very short, branched. 



Leaves. Lanceolate, with a long serrated white point, areolae large and regular. 

 Flowers and Fruit. Capsule oblong, pyriform ; very faintly striated, thin. 

 Spring. 



Locality. Walls and old wood. 



Fig. 14. Orthotrichum leiocarpum. 

 Smooth -fruited Bristle Moss (a) . 



Colour. Yellow green. 

 Steins. Long, branched. 



Leaves (b) . Large, widely-spreading when wet, pressed to the stem when dry, 



lanceolate ; margin recurved. 

 Flowers and Fruit. Capsule perfectly smooth ; calyptra hairy or naked. 



Spring. 



Locality. Common on trees. 



