HANDBOOK OF BRITISH HEPATIC.^. 179 



Jungermannia Muelleri, Nees in Lind. 

 Syn. p. 39 ; Gott. and Rab. Exs. No. 58, 

 147, 148, 154, 227, 395. Jungermannia ban- 

 triensis, var. Muelleri, Carr. and Pears. Exs. 

 No. 247. 



On stones, limestone rocks, and amongst moss. 



Stem creeping, ascending at the apex, flexuous, 

 innovant, leaves semi-vertical, orbicular, repand, 

 emarginate, bidentate, with a narrow sinus ; laciniae 

 unequal, acute or obtuse ; involucral leaves larger, 

 spreading at the apex, bifid, embracing at the base, 

 more or less ciliate, dentate. Stipules lanceolate, 

 bifid or trifid, or pinnately ciliate, subulate at the 

 tips. Perianth subcylindrical, even, mouth plicate, 

 rather mucronate. (Plate 4., fig. 5.) 



Jung-ermannia attenuata, Lind. 



Stem ascending, nearly simple ; lower 

 leaves accumbent, subquadrate, emarginate- 

 trifid ; upper leaves incumbent, rounded, tri- 

 crenate, concave; perichaetial leaves subtrifid ; 

 stipules ovate, entire; perianth cylindrical, 

 terminal. 



Jungermannia barbata ft minor, Hook. Br. 

 Jung. t. 70, f. 18-22. Jungermannia attenuata, 

 Lind. Syn. Hep. 48 ; Carr. and Pears. Exs. 

 No. 74. 



On the ground, rocks or trunks. 



Stem ascending, with a few radicles, fasciculately 



N 2 



