HANDBOOK OF BRITISH HEPATICJE. 249 



GENUS 36. PELLIA, Raddi. 



Involucre cup-shaped, mouth torn into teeth. 

 Perianth none. Calyptra four-valved, valves 

 naked, rounded. Elaters central, persistent, 

 double, enclosed. Raddi. Jung. Etrus. p. 49 

 (1820). 



Plants frondose, without leaves, fronds without 

 ribs. 



Pellia epiphylla, Linn. 



Frond oblong, sinuate, lobate, thick ; invo- 

 lucre included ; calyptra exserted. Fruit pro- 

 duced from the upper surface of the nerve 

 near the extremity. 



Jungermannia epiphylla, Linn. Sp. 1602 ; 

 Hook. Br. Jung. t. 47. Pellia epiphylla, 

 Corda Opiz. 654; Dumort. Hep. Eur. 145; 

 Gott. and Rabh. Exs. 31, 119, 120, 179, 274, 

 357; Cooke Hep. f. 171; Carr. and Pears. 



EXS. 200, 201, 202, 203. 



var. /3 endimcefolia Dicks. Fronds elon- 

 gate, broadly linear, fruit terminal and lateral. 



Jungermannia endimcefolia, Dicks. Crypt. IV., 

 p. 19. 



In shady wet places. (Fr. Aut. and Spr.) 

 Growing generally in large patches, some feet 



