Hepaticoe of North 'America . 



9. J. fossombronioides Aust. Stems densely caespi- 

 tose, ascending, strongly radiculose; leaves distichous-subverti- 

 cal, closely imbricate, orbicular, the margin undulate-repand, 

 the apex uniplicate, slightly emarginate, spreading-subrecurved, 

 the base subcordate, clasping the stem, subventricose, radicu- 

 lose; inner involucre very large, exserted, subcampanulate, 6- 

 10-plicate, the mouth deeply laciniate, the laciniae entire; cap- 

 sule short-oval; calyptra violet. 



Hob. On rocks in a rivulet ; Closter, N. J. (Austin). 

 Bib. Pro. Phil. Acad. 1869, p. 220. 

 JSboic. -Hep. Bor.-Amer. No. 32. 



10. J. crenulata Smith. Stems prostrate, branching; 

 leaves orbicular, entire, those toward the involucre larger and 

 bordered with large marginal cells; inner involucre obovate, 

 compressed-4-angled. the mouth much contracted, toothed; 

 capsule subrotund ; elliptic. (Solenostomum crenulatum Mitt., 

 Aplozia crenulata Dumort.) Var. gracillima (Aplozia gracil- 

 lima Dumort.) is also found. 



Hab. On the ground in old fields, etc., N. Y. to Ala. (Eu.) 

 Bib. Syn. Hep. p. 90 ; Hep. Europ. p. 57. 



Delin. Brit. Jung. t. 37, et Suppl. t. 1 ; Ekart, t. Ill et XII, f. 25. 

 Exsic. Hep. Bor.-Amer. No. 30. 



11. J. crenuliformis Aust. Densely caespitose; fertile 

 stems creeping, increasing upward, strongly radiculose, the 

 rootlets mostly purplish; sterile stems somewhat ascending, 

 decreasing upward; leaves orbicular, gently repand-undulate, 

 entire or subemarginate, obliquely patent, somewhat decurrent, 

 concave, almost cup-shaped when dry; inner involucre small, 

 subobovate, more or less connate with the involucre, not at all 

 or slightly exserted, radiculose at the base, at first subtrique- 

 trous at the apex and somewhat laterally compressed, at length 

 almost terete and somewhat beaked at the apex; capsule oval- 

 globose; calyptra often violet purple. 



Hab. On rocks in rivulets near Closter, N. J. (Austin), Coshocton 

 Co., O. (Sullivant). 



Bib.Torrey Bull. Ill, 10. 

 Exsic. Hep. Bor.-Amer. No. 31. 



