Neur. 



466 



Neuropteris tenuinervis. Lesq. Geo!. Pa. 1858, p. 859, 



X(». 





pi. 5, figs. 7, 8, from Gate vein, anthracite, Pottsville, distin- 

 guished (1) an abnormal form of leaflet, (2) a very slender^ 

 deep, straight middle nerve, looking like a cleft splitting each 

 pinnule lengthwise ; were it not for this, figs. 7, 8, would be 

 thought diff'erent species. Looks something like Odontopteris 

 subouneata^ Bunb. — Coal Flora, p. 125, pi. 22, figs. 2, 3, the 

 only two specimens seen by Lesquereux up to 1880. — XIII, 

 Neuropteris undans. See N. gibbosa. XIII 

 Neuropteris vermicularis, in the Darlington coal bed, 

 Beaver Co., Pa., Q, p. 54. X/J/.— Note. Recognized by Mr. 

 Lacoe in Koch's collections at the Tipton Run mines, Blair 

 Co., Pa., from beds assigned to the Pocono formation. X. 

 Neuropteris willersii. (callosa?) Brgt. Lssq. Geo!. Pa. 



/T1858, p. 858, pL 

 ^ ^3, fig. 3, from 

 Gate vein, an- 

 '-^ thracite, Potts- 

 ville, Schuylkill 

 Co., Pa. Nerva- 

 , tion pecu liar, 

 ^ making the spe- 

 c i e s reference 

 doubtful. In 

 Coal Flora, page 

 86, Lesq. agrees 



'L<^sf, i^ sf. ir ■^lf>z^r^.^"'''"T 



_^ , ...^ xK/'*^""**^ that it IS proba- 



bly iV. callosa, Cannelton, Beaver Co., Pa. — XIII 



