Hepaticce of North America. 103 



Hob. On the ground in moist places, Col.? (Botanists of Wheeler Sur- 

 vey), Greenland. (Eu.) 



Bib. Syn. Hep. p. 95 ; Hep. Europ. p. 59. 

 Delin Brit. Jung. t. 32 ; Ekart t. Ill f. 26. 



16. J. pumila With. Stems creeping, somewhat as- 

 cending at the apex, radiculose, subsimple, pale; leaves ovate, 1 

 obtuse, concave, ascending, entire; involucral leaves like those 

 of the stem, erect; inner involucre terminal, lanceolate, plicate 

 above, the mouth denticulate; capsule oval. (Aplozia pumila 

 Dumort.) 



Hah. On shaded rocks along rivulets, Closter, N. J. (Austin), Col. 

 (Brandegee). (Eu.) 



Sib. Syn. Hep. p. 97; Hep. Europ. p. 59. 

 Delin. Brit. Jung. t. 17 ; Ekart, t. II, f. 13. 

 Exsic. Hep. Bor.-Amer. No. 33. 



ff Leaves bidentate. 



17. J. alpestris Schleich. Stems densely creeping, bifid- 

 branching, ascending at the apex; leaves semivertical, ovate- 

 subquadrate, obliquely bidentate, the lacinise unequal, acute or 

 mucronulate, distant; involucral leaves wider than those of 

 the stem, 2-3-cleft; inner -involucre twice as long as the outer, 

 oblong, smooth, the mouth complicate; capsule oval. 



Hob Alpine regions of White Mts., N. H. (Oakes). (Eu.) 

 Bib. Syn. Hep. p. 113 ; Hep. Europ. p 75. 

 Exsic. Hep. Bor.-Amer. No. 39. 



18. J. ventricosa Dicks. Stems dense, close creeping, 

 branching from beneath; leaves semivertical, subquadrate, 

 plane or inflexed at the base anteriorly, broadly emarginate-bi- 

 dentate, the teeth acute, often bearing globules; involucral 

 leaves larger, erect-spreading, rotund, 3-4-cleft, somewhat den- 

 tate; inner involucre ovate, inflated, narrow-complicate toward 

 the apex, oval. (J. porpliyroleuca Nees is a variety fide Aus- 



tin). 



Hah. On rotten wood and on the ground in mountainous regions 

 and far northward; common. (Eu.) 



Bib. Syn. Hep. p. 108, 109 ; Hep. Europ. p. 76, 77 ; Pro. Phil. Acad. 

 1869, p. 220. 



Delin. Brit, Jung. t. 28; Ekart. t. VII, f. 58; t. X, f. 79 et. XII, f. 

 29 (var.) 



Erxie. Hep. Bor.-Amer. No. 36, 37, 38. 



