Hepaticce of North America. 89 



2. L. minor Nees. Stems diffusely branching; leaves 

 pale green, oval, subquadrate, somewhat rigid, the sinus lunate 

 the teeth equal, acute; amphigastria one-third the size of the 

 leaves, deeply bifid, the lacinise lanceolate-acuminate, entire; 

 inner involucre trigonal-plicate; involucral leaves mostly uni- 

 form. 



Hob. On roots of trees in woods. (Eu.) 

 Bib Syn. Hep. p. 160 ; Hep. Europ. p. 84. 

 Exsic. Hep. Bor.-Amer. No. 65b. 



3. L. Macouni Aust. Stems very short, prostrate, as- 

 cending at the apex, densely radiculose ; leaves somewhat erect, 

 ovate subquadrate, retuse or emarginate, bilobed or often en- 

 tire, the margin slightly repand, the sinus and lobes obtuse; 

 amphigastria light pink, deeply bifid, the sinus broad, obtuse, 

 the lacinise spreading incurved, setaceous, often formed of a 

 single series of cells; inner involucre subobovate, slightly tri- 

 gonal; involucral leaves suboblong, somewhat repand at the 

 margin, unequally 2-4-repand-dentate at the apex. 



Hob. On logs, among other Hepaticse, Ontario (Macoun), Little 

 Falls, N. Y. (Austin}. 



Bib. Pro. Phil. Acad. 1869, p. 223. 

 Exsic. Hep. Bor.-Amer. No. 66. 



** Divisions of amphigastria somewhat dentate, 

 f Amphigastria large. 



4. L. heterophylla Nees. Stems short, creeping or 

 ascending, much branched; leaves ovate-subquadrate, entire, 

 retuse and bidentate on the same stem; amphigastria large, 

 2-cleft, the laciniae slightly dentate. (Jungermania hetero- 

 phylla Schrad.) 



Hab. On the ground and old logs, etc. in woods and swamps ; very 

 common. (Eu.) 



Bib Syn. Hep. p. 164 ; Hep. Europ. p. 86. 



Delin Brit. Jung. t. 31 ; Ekart, t. VII, f. 54 ; Sulliv. Mosses U. S. t. 

 VII. 



Exsic. Hep. Bor.-Amer. No. 64. 



ff Amphigastria of medium size. 



