HANDBOOK OF BRITISH HEPATIC^E. 2 29 



geoscypha, Lindberg Muse. Scan. ; Carr. Br. 

 Hep. p. 27. 



On rocks, &c. 



Colour reddish brown or purple, from two to six 

 lines. Resembling Jimgermannia Genthiana in size 

 and colour, but differing in the immersed colesule 

 and peculiar structure of the involucre. Dr. Car- 

 rington says that the position of the parts may be 

 better understood if we compare the creeping shoot 

 to the stem of a clay pipe, the head representing the 

 involucre, and its tumid base the knob beneath. 



Nardia compressa, Hook. 



Stem erect, branched ; leaves closely ac- 

 cumbent, bifarious, orbiculate, entire; peri- 

 chaetial leaves kidney-shaped ; stipules on the 

 stem none. 



Jungermannia compressa, Hook. Br. Jung, 

 t. 58 ; Eng. Bot. t. 2587 ; Lib. Crypt. Exs. 

 No. 211. Mesophylla compressa, Dumort. 

 Comm. p. 112. Alicularia compressa, Gott. 

 and Rab. Exs. 443,472 ; Cooke Hep. f. 9, 

 30. Nardia compressa, Carr. and Pears. Exs, 

 No. 8, 9, 221. 



Borders of mountain rills, or in the spray of 

 waterfalls. (Fr. Spring.) 



Stems ascending or erect, thread-like, flexuous, 

 i to 3 inches long, or more, of a pale brown 



