HANDBOOK OF BRITISH HEPATICjE. 227 



roundish-ovate or cordate, sharply emarginate. 

 Perianth immersed and adnate, apex cleft in five 

 broad equal segments. Calyptra obovate. Capsule 

 oval, chocolate brown, valves thick, annulate, 

 striate. Spores dark brown, obscurely triangular, 

 15/A diam. Andraecium terminal on distinct 

 shoots. 



var. a major. Stems incrassated, naked, 

 for the most part erect ; leaves more distant, 

 less convex, patent, and often recurved at the 

 apex ; involucral leaves emarginate ; amphi- 

 gastria distinct, triangularly subulate, entire. 

 Deep green, sometimes red, or purplish. 



Jungermannia scalaris, Hook. Jung. t. 61; 

 Brit. Fl. V., 1, p. 116. 



var. a major. Gott. and Rabh. Exs. No. 106, 

 362. 



Alicularia scalaris, Corda Sturm. Fl. XIX., 

 p. 32, t. 8; Cooke Hep. f. 27, 28. 



a* distans. Stems elongated ; leaves dis- 

 tant, more convex, erect, spreading, ventricose, 

 dingy green, shrinking when dry. 



var. ft rigidula. Shoots rigid, creeping, 

 subterete ; leaves roundish-ovate, closely 

 imbricate, semi-vertical ; male stems terete, 

 subspicate; amphigastria frequent, subulate; 

 involucre half-immersed, olive green, brown, 

 or purple. 



Alicularia scalaris, <*** rigidula, Gott. and 

 Rabh. Exs. No. 223. 



Q 2 



