HANDBOOK OF BRITISH HEPATIC^. 



191 



Jungermannia bierenata, Schm. 



Stem procumbent, subsimple, leaves erect, 

 rounded-ovate, acutely emarginate ; laciniae 

 acute ; perichaetial leaves subtrifid, adpressed, 

 rather serrulate ; stipules none, perianth 

 oval. 



Jungermannia bicrenata, Schmid Anal., 

 p. 247, t. 64, fig. i; Gott. and Rabh. Exs. 127, 

 187, 310,411, 495; Carr. and Pears. Exs. 

 No. 1 1 1 ; Cooke Hep. f. 79, 80. Junger- 

 mannia excisa, EngL Bot. t. 2497, Ekart. Jung. 

 t. ii, f. 93- 



On sandy soil, &c. 



Stem creeping, short, somewhat proliferous ; 

 leaves semi-vertical, densely imbricate, connivent 

 above, concave, 

 ovate, or roundish, 

 reticulate,bidentate, 

 with an acute sinus, 

 the laciniae also 

 acute, margins en- 

 tire ; involucral 

 leaves a little larger, 

 adpressed, acutely 

 bifid or trifid, some- 

 what serrulate ; 

 perianth terminal, 

 ovate, plicate, mouth ciliately toothed, connivent 

 (figs. 136, 137). 



137 



