84 Illinois State Lithonitorij of Natural History. 



from the underside of the stem, single in the base of condupli- 

 cate 2-3-cleft perigonial leaves. Leaves usually 4-toothed or 

 4-parted. Amphigastria 3-5-cleft. Name from Gr. lejns., a 

 scale, and ozos, a bud, from the form of the involucre. 



1 . L. reptans Dumort. Stems creeping, pinnately corn- 

 compound or decompound, the branches often furnished with 

 a flagellum; leaves decurved, subquadrate, acute, acutely 3-4- 

 toothed; amphigastria subquadrate, 3-4-cleft; involucral leaves 

 ovate, truncate, unequally 4-denticulate ; inner involucre in- 

 curved, the mouth dentate. (Jungermania reptans L., Pleuro- 

 schisma reptans Dumort.) 



Hab. — On the ground and on rotten wood, N. J. (Austin), and north- 

 ward. (Eu.) 



Bib.— Syn. Hep. p. 205 ; Hep. Europ. p. 109. 



Delin— Brit. Jung. t. 75 ; Ekart, t. Ill, f. 21 ; SuUiv. Mosses U. S. f 

 VIII. 



E.vsic. — Hep. Bor.-Amer. No. 75. 



2. L. setacea Mitt. Leaves and amphigastria uniform, 

 deeply 2-3-cleft or 3-parted, incurved, the laciniae subulate, 

 formed of a somewhat double series of cells; inner involucre 

 ciliate at the mouth. (Jungermania setacea Web., Blepharos- 

 toma setacea Dumort.) 



Hab. — On ground and rotten wood ; common. (Eu.) 



J5i6.— Syn. Hep. p. 144, 686; Hep. Europ. p. 95 {suh. Blepharostoma.) 



Delin.— Brit. Jung. t. 8 ; Ekart, t. IV, f. 28. 



E-icsic. — Hep. Bor.-Amer. No. 76. 



3. L. Californica Aust. Stems subfiliform, flaccid, 

 much branching; leaves loosely imbricate, deeply palmately 

 3-5-cleft, the laciniae filiform-attenuate, unequal, entire or re- 

 pand, or occasionally again cleft; amphigastria wider than the 

 stem, suboblong, deeply bifid, the laciniae incised-cilate. (Mas- 

 tigopjJiora Calif omica Aust.) 



ira6.— Bark of trees, Mts. of Cal. (Bolander), Vancouver's Island 

 (Maeoun.) 



BIh.—Torrey Bull. VI, 19, 302. 



J 



