Hepaticw of North America. 39 



reticulated, with a narrow distinct costa. Gemmae wanting. 

 Name from Gr. konos, a cone, and kephcde, head, alluding to 

 the conic carpocephalum. 



1 . C. conicus Dumort. Thallus 5-15 cm. long, 1-2 cm. 

 wide: carpocephalum conic, striate, crenate at the margin. 

 ( Marchantia contra L., Conocephalus mdaaris Bisch, Feaatella 

 conica Corda.) 



Hob. Shady banks of rivulets ; common. (Eu.) 

 Bib.Syn. Hep. p. 546; Hep. Europ. p. 155. 

 Delin Sulliv. Mosses U. S. t. VI. 

 Ersic. Hep. Bor.-Amer. No. 131, 



X. FIMBRIARIA NEBS. 



Carpocephalum pedunculate from the apex of the thallus 

 or its innovations, conic or hemispheric, concave beneath and 

 expanded at the margin into usually 4 large, pendent, campan- 

 ulate, 1-fruited involucres. Inner involucre oblong-oval or 

 subconic, protruding half its length beyond the involucre, with 

 the projecting portion cleft into 8-16 fringe-like segments 

 which are often more or less coherent at the apex. Calyptra 

 with a long style, fugacious. Capsule scarcely pedicelled, glo- 

 bose, irregularly circumscissile near the middle. Spores angu- 

 lar, slightly reticulate, apparently margined. Elaters rather 

 short, uni-quadrispiral. Antheridia immersed in the thallus, 

 without receptacle. Thallus thickened in the middle, with a 

 keeled costa, which in some species throws out lateral innova- 

 tions, usually conspicuously porose above, and with dark pur- 

 ple scales beneath. Gemmae wanting. Name from Lat. fim- 

 brice, a fringe. 



* Peduncles more or less pilose; divisions of inner involucre 



coherent at their apices. 



/ Inner involucre 8-cleft. 



1. P. elegans Spreng. Thallus 0.62.1 cm. long, 24 

 mm. wide, producing innovations from the costa underneath 

 and also from the apex, linear-oblong, the innovations obcord- 

 ate, emarginate or bilobed at the apex, glaucous-green and mod- 

 erately porose above, abruptly carinate and usually dark purple 



