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BRITISH MOSSES. 



Ej[G. 6. TORTULA FALLAX. 



Fallacious Screw Moss (a) . 



Colour. Yellow green. 

 Stems. Branched, tufted. 



Leaves (b) . Spreading, lanceolate ; margin recurved. 



Flowers and Fruit. Dioicous. Capsule nearly cylindrical; lid rostrate. Winter. 

 Varieties. Brevicaulis. — stems short ; leaves wavy in the margin. 

 Brevifolia. — Leaves short. 



Becurvifolia. — Leaves widely spreading, recurved (Fig. 7, a, b) . Now 

 considered a species. 

 Locality. Banks, in clayey soils. 



Fig. 8. Tortula vinealis. 

 Soft-tufted Screw Moss (a) . 



Colour. Yellow green. 



Stems. Tufted, long. 



Leaves (b) . Linear-lanceolate. 



Flowers and Fruit. Dioicous ; seta very long ; capsule thicker and elliptical, 



with an annidus. Spring. 

 Locality. Common on walls, 



2. Leaves twisted when dry. 

 Fig. 9. Tortula tortuosa, 

 Curly-leaved Screw Moss (a) . 



Colour. Emerald green. 

 Stems. Long, branched. 



Leaves (b) . Very long, in a large tuft at the end of the stem, much twisted. 

 Flowers and Fruit. Dioicous. Capsule ovate. Summer. 

 Locality. Limestone rocks. 



