1 68 HANDBOOK OF BRITISH HEPATIC^E. 



terminal leaves purple. Perichaetial leaves similar, 

 closely adpressed to the calyx, the calyx obovate, 

 laterally compressed, with four longitudinal angles, 

 which are prominent and acute when mature, mouth 

 contracted and irregularly toothed. Capsule ovate, 

 shining brown, longitudinally and transversely 

 furrowed. Elaters bispiral. 



Aplozia graeillima, Sm., Dum. 



Stem creeping, fertile branches erect, leaves 

 alternate, remote, amplexicaul, rounded ovate, 

 concave, rounded marginate ; stipules none ; 

 perianth terminal, cylindrical. 



Jungermannia gracillima, Sm. Eng. Bot. 

 t. 2238 ; Carr. Trans. Bot. Soc. Edin. VII., 

 447 ; Carr. and Pears. Exs. 248, 249 ; Cooke 

 Hep. fig. 60. Aplozia gracillima, Dumort. 

 Hep. Eur. p. 57. Jungermannia crenulata )3, 

 Hook. Br. Jung. p. 37. Jungermannia Gen- 

 thiana, Hubn. Hep. Germ. 107 ; Gott. and 

 Rab. Exs. 68, 115, 384. 

 On the ground. 



Not nearly so small as Lejeunia minutissima, and 

 differing in the stem, clasping leaves, and more 

 essentially in its perianth, which is terminal, cylindri- 

 cal, obtuse, surrounded by several imbri- 

 cated leaves, which are larger than the rest, 

 and these as well as the perianth tinged with 

 red. Stems very slender and pellucid, 

 branched, creeping, somewhat zig-zag, 

 clothed with small scattered pellucid, 

 apparently fleshy, leaves, of a roundish 



