DESCRIPTION OF SPECIES. PP. 83 



Goniopteris elUptica^ Sp. nov., PI. XXX, Fig. 1. 



(Frond, bipinnate; pinnae closely placed ; rachis slender 

 and somew'liat tlexuous ; pinnules alternate, narrow, ellip- 

 tical, and somewhat acute, united too near the middle ; mid- 

 nerve well marked, slender and extending to the apex ; 

 lateral nerves simple, about 6 on a side, the lowest pairs of 

 adjacent nerves usually meeting at an acute angle, and all 

 going off at an angle of somewhat less than 45°.) 



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

 West Virginia. 



Goniopteris Sjjecies 'f PI. XVII, Fig. 6. 



This fragment of a pinna was found in the Roof-shales of 

 the Waynesburg Coal at Cassville, W. Va. and resembles 

 the plant ligured by Prof. Lesquereux on Plate XIII, Fig. 

 12 Illinois Report, and referred by him to Pecopteris {Go- 

 niopteris) arguta. Our plant is fruiting, as is that of Prof. 

 Lesquereux. This plant does not agree with the typical 

 form of G. arguta^ which we find at the same locality, and 

 it is probable tliat it should be referred to a new species. 



Goniopteris oblonga, Sp. nov., PL XXX, Figs. 3-6. 



(Frond, bipinnate; primary rachis rough and stout; pin- 

 pse toward the base of the frond alternate, closely placed, 

 going off at angle above 45°, arching downward slightly, 

 with a rigid aspect, linear-lanceolate ; pinnules, alternate, 

 crowded, rounded at the apex, united to near the middle ; 

 in ascending, more and more united; terminal pinnules, 

 united to the summit; lowest pinnule on the lower side, 

 more or less defiexed ; pinufe toward the summit of the 

 frond, becoming shorter in ascending, with lol)es less and 

 less defined, until they pass into pinnules with undulate 

 margins ; mid-nerve strong and extending to the apex of 

 the lobe ; lateral nerves simple, going off at an acute angle, 

 the lowest pair anastomosing with the corresponding pair 

 of the adjacent lobes at the sinus.) 



Habitat. — Roof -shales of the Waynesburg Coal, West 

 Union. W. Va. 



