100 Illinois State Laboratory of Natural History. 



somewhat obsolete, difform, mostly hairlike or subulate, some- 

 times ciliate-appendiculate at the margin, the apex incurved; 

 involucral leaves little larger, somewhat undulate, less deeply 

 bilobed; inner involucre terminal, inflated, small, lageniform- 

 ovate, the apex contracted, whitish, the mouth ciliate. 



Hob. On the ground in L. Superior region, Can. (Macoun). 

 Bib.Torrey Bull. Ill, 11. 



f/ff Leaves 3-5-cleft. 



7. J. barbata Schreb. Stems procumbent, sparingly 

 branched; leaves roundish-quadrate, 3-5-lobed, the sinuses ob- 

 tuse and undulate, the lobes obtuse, acute or mucronulate vari- 

 ously directed; amphigastria broad, entire or 2-toothed, some- 

 times obsolete; inner involucre terminal, oval, plicate-angular 

 toward the apex, the mouth denticulate. 



Var. attenuata Mart. Stems ascending with numerous 

 subcylindric innovations ; primary leaves semi vertical, obliquely 

 spreading, roundish, mostly concave, 2-4-toothed. the teeth 

 acute, subequal; leaves on the innovations closely imbricate, 

 ovate-subquadrate, premorsely 2-4-denticulate ; involucral leaves 

 2, tridehtate: inner involucre terminal, oblong, plicate at the 

 apex. (Jungermania attenuata Lindenb.) 



Hab, On rocks in mountain regions; common. (Eu.) 

 Bib Syn. Hep. p. 122; Hep. Europ. p. 71, 72. 

 Delin. Brit. Jung. t. 70 ; Ekart. t. XII, f, 102 (var.) 

 Exsic Hep. Bor.-Amer. No. 47, 48. 



8. J. setiformis Ehrh. Stems erect or ascending, di- 

 chotomous and with the leaves terete-sulcate ; leaves toothed at 

 the base, 3-4-cleft, the lobes channeled, ovate-oblong, acute; 

 amphigastria ciliate-dentate at the base, deeply bifid, the laciniae 

 lanceolate-acuminate ; involucral leaves more toothed than those 

 of the stem; inner involucral terminal, oval, plicate. (Anthe- 

 lia setiformis Dumort.) 



Hob Alpine summits of White Mts. N. H. (Oakes), Greenland 

 (Vahl). (Eu.) 



Sib. Syn. Hep. p. 130 ; Hep. Europ. p. 97. 

 Delin. Brit. Jung. t. 20 ; Ekart, t. II, f . 15. 

 Exsic. Hep. Bor.-Amer. No. 49. 



*** Amphigastria wanting. 

 f Leaves entire or nearly so. 



