86 PP. REPORT OF PROGRESS. FONTAINE & WHITE. 



simple, anastomosing with the corresponding ones of the 

 adjoining pinnules, forming triangular spaces devoid of 

 nerves; lateral nerves of the heteromorphous lower pinnules, 

 more complex than on the lower side of the pinnules, fork- 

 ing occasionally twice, and all on the upper side once fork- 

 ing.) 



The facies of this plant is much like that of Goniopteris 

 eviarglnaia (Goepp.) Schimp. but the forking nerves re- 

 move it from that genus, as limited by Schimper. 



Habitat. — Roof shales of the Waynesburg Coal, Cassville, 

 West Virginia. 



Cymoglossa hreinloba. Sp. nov., PL XXXI, Fig. 3. 



(Frond, bipinnate ; pinnae short, oblong, sessile, and 

 slightly contracted at the base, alternate, inserted at a 

 right angle with the primary rachis; margin slightly lobed, 

 or only undulate; nerves passing off very acutely in groups 

 into the segments or pinnules, which by their union com- 

 pose the pinnules or pinnae, all reaching the margin, fork- 

 ing, and simple, the two lowest anastomosing with the 

 corresponding ones of the adjoining segments at the sinus 

 of the lobes, and forming long, curved, triangular areas 

 without nerves.) 



This beautiful fern corresponds closely with the typical 

 plant of Schimper, Cymoglossa Goeppertiana^ but is a 

 smaller plant, and tlie one of the anastomosing nerves 

 nearer the end of the pinnule is generally forked and 

 unites with its neighbors by one branch. The texture is 

 dense and leather-like, and the nerves, though rather 

 slender, are very distinct and sharj^ly outlined. 



Habitat. — Roof shales of the Waynesburg Coal, Cassville, 

 West Virginia. 



Cymoglossa formosa. Sp. nov., PL XXXI, Figs. 1-2. 



(Frond, bipinnatiiid ; pinnae long, linear, and tapering 

 slowly to the extremity; rachis, rigid, rather slender, and 

 marked by a raised, cord-like line along each margin; 

 united pinnules or segments, oblong-lanceolate, terminating 

 acutely, and dentately lobed ; mid-nerve of the segments 



