EXPLANATION OF THE PLATES. 95 



Leaves (b). Subulate; the upper dull green, the lower red. 



Mowers and Fruit. Capsule brown, oval. Peristome soon falling (fugacious) . 



Antheridia in the axils of the perichaetial leaves, naked. Winter. 

 Locality. On rocks. 



11. Dioicous. 



Fig. 7. Didymodon lueidus. 



Dark Twin-toothed Moss (a) . 



Colour. Dull green. 



Stems. Branched, tuftea 



Leaves (i) . Ovate-lanceolate, margin turned back [reflexed) . 



Capsule. Cylindrical. Winter. 



Locality. On limestone walls. Rare. 



Fig. 8. Didymodon cylindeicus. 



Slender-fruited Twin-toothed Moss [a) . 



Colour. Dark green. 



Stems. In patches, branched. 



Leaves (b) . Linear-lanceolate, very much spreading. 



Capsule. Of thin texture, cylindrical. Not common. Autumn. 



Jjocality. Moist rocks. 



Fig. 9. Didymodon plexifolius. 



Bent-leaved Twin-toothed Moss [a) . 



Colour. Dark yellow green. 



Stems. Slender, branched, in patches. 



Leaves (b) . Spreading, twisted and bent, very much so when dry ; ligulate, 



serrated at the apex. 

 Capsule. Small ; very rare. Spring. 

 Locality. On moors, particularly where the ground has been burnt. 



