HANDBOOK OF BRITISH HEPATICVE. 115 



Rab. Exs. 574. Cephalozia elachista, Spruce 

 on Cephalozia, p. 70. 



On damp rocks. (Plate 2, fig. 25^) 



Monoicous, cladocarpous and acrocarpous, small, 

 pallid, very tender, prostrate, stem rising from a 

 rhizomatose base, almost leafless, and sparingly 

 branched. Leaves distant, only at the apices of the 

 fertile branches somewhat imbricate, oval, deeply 

 and acutely bilobate, lobes broadly subulate, acu- 

 minate, incurved, one or other armed with a tooth ; 

 cells small, subquadrate, pellucid. Stipules minute, 

 often bifid, segments shortly setaceous ; sometimes 

 none. Male catkins terminal on the stem, or 

 occupying nearly the whole branch. Bracts narrow, 

 often denticulate, lobes acuminate, upwards secund. 

 Female branch short or elongated, often innovantly 

 proliferous. Bracts much larger than the leaves, 

 nearly free, deeply bilobed, denticulate or sub- 

 spinulose, lobes thinly acuminate Perianth elon- 

 gated, acutely trigonous, mouth denticulate. 

 Capsule oblong. 



Cephalozia Turner!, Hook. 



Stem creeping, branched; leaves incumbent, 

 conduplicate, ovate, bipartite, segments spinu- 

 losely toothed ; perichaetial leaves everywhere 

 imbricate, 3-4 lobed, dentate ; stipules none ; 

 perianth terminal, cylindrical. 



Jungermannia Turneri, Hook. Br. Jung. No. 

 29; Cooke Hep. f. 100; Engl. Bot. t. 2510; 

 Mack. Hib. II., 66 ; Cephalozia Turneri, Lindb. 



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