Uepaficcc of North America. 89 



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

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

 the teeth equal, acute; amphigastria one-third the si/e of the 

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

 inner involucre trigonal-plicate; involucral leaves mostly uni- 

 form. 



Hah. — On roots of trees in woods. (En.) 

 Bih.—^yn. 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 snbquadrate, 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 lacinige 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. 



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

 Falls, N. Y. {Austin). 



Bib.— Fro. Phil. Acad. 1869, p. 223. 

 Elmc— Hep. Bor.-Amer. No. 66. 



** Divisions of amphif/asfria 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 laciniai slightly dentate. (Jungermania hetcro- 

 phijUa Schrad. ) 



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

 common. (Eu.) 



Bih.—^yn. Hep. p. 164; Hep. Europ. p. 86. 



DeUn.—Bvxi. Jung. t. 31 ; Ekart, t. VII, f. 54; SuUiv. Mosses U. S. t. 

 VII. 



Krdc. — Hep. Bor.-Amer. No. 64. 



/"/■ Aiiipliig((sfria of iiicdiiiiH size. 



