226 



HANDBOOK OF BRITISH HEPATICjE. 



upper ones retuse; amphigastria broadly 

 subulate; involucre compressed, obovate, 

 urceolate ; capsule oval. 



Jungermannia scalaris, Schrad. Crypt. II., 

 p. 4. Jungermannia lanceolata, Eng. Bot. 

 t. 605. Nardia scalaris, Carr. Br. Hep. 

 p. 23; Carr. and Pears. Exs. No. 6, 7, 84; 

 Alicularia scalaris, Cooke Hep. f. 27, 28. 



Common on shady banks, rocks, and wet places 

 (Fr. Spring and Autumn.) 



Colour from dark brown to purple. Stolons 

 mostly subterranean, viticulose, fleshy. Stems 

 to I inch in length, or longer, stout, simple, rarely 

 forked, innovations from axils of apical amphigastria. 

 Barren shoots of nearly 

 equal diameter, terete or 

 laterally compressed, 

 curved at the summit ; 

 rootlets numerous. Leaves 

 smaller and more distant 

 at the base, distichous, 

 scalately imbricate, erect, 

 obliquely clasping, con- 

 cave, orbiculate (fig. 154), 



submarginate, terminal 

 leaves emarginate. 

 Amphigastria ovate 

 or triangular - subulate. 

 Dioicous. Fertile stems ascending, trigonous in 

 section. Involucral leaves two or three pairs, 

 double the size of the ordinary leaves, entire or 

 emarginate, vaginate. Involucre obovate, lobes 



