HANDBOOK OF BRITISH HEPATIC^. 



Monoicous. Densely imbricated, forming wide 

 compressed tufts. Stems i to 2 

 inches long, creeping, variously 

 branched, branches again pinnate, 

 and innovant, with a few pellucid 

 radicles proceeding from the leaves. 

 Leaves closely imbricated, in a bi- 

 farious manner (fig. 

 36), concealing the 

 Astern, unequally 

 two-lobed ; superior 

 lobe much the 

 largest, orbicular, 

 nearly flat ; inferior 

 lobe ovate, ad- 

 36. 37- pressed, flat, often 



radiculose (fig. 37). Colour, pale yellow green. Peri- 

 chaetial leaves differing little from the cauline ones, 

 except in the two lobes being more equal. Stipules 

 none. Calyx oblong, from a cylindrical base, be- 

 coming wider, compressed, flat at the apex and 

 truncate, nearly entire, or only cleft on one side. 

 Capsule ovate, pale brown, furrowed. Elaters 

 bispiral. 



Radula voluta, Tayl. 



Stem procumbent, pinnately branched ; 

 leaves auriculate behind, densely imbricate, 

 orbicular, entire, complicate at the base ; 

 auricle large, rounded-cordate, excised at the 

 base, and rather embracing the stem. 



Radula valuta, Taylor in Syn. Hep. 255; 



