Alet. 



10 



Bed B, Hunt, county, Pa. {XIII)\ T3, p. 61. Alethopteris 

 ambigua^ lonchitica^ nervosa^ pluckeneti^ serlit^ sullivanti^ are 

 all found in the roof of the Darlington coal bed (Kittanning 

 group) in Beaver county, Pa., Rt. Q, p. 54. Good specimens of 

 an Alethopteris are got from roof uf Redstone coal, Monongahela 

 series (XF), Report KK, p. 254. Alethopteris Virginia is found 

 over the Waynesburg coal (XF//), K, p. 59; PP. 



Alethopteris distans. See Alethopteris lonchitica. XIII, 

 Alethopteris gigas ? Geinitz. Fontaine & White's Flora, 



Wmi^iimnjm6(mm>& 





r, ^ w. rP- 



ri.^i 



Rt. PP, 1880, page 89, plate 33, fig. 5, 6 ; found only in sandy 

 shale (which does not preserve the side nerves) at Bellton, 

 Marshall Co., W. Va., 500 feet above Pittsburgh bed.— XF/, 

 XF//, upper coal measures. — Note. At Bellaire, O., larger, 

 stouter specimens occur, 20 feet helow the Pittsburg bed. A, 

 gigas is an European Permian plant. 



Alethopteris grandifolia. (Newberry 1873, Pal. ()hio,Vol. 



I, p. 384, plate 48, 

 flgs. 1, 2; la being 

 two pinnules much 

 enlarged to show the 

 veins). Specimens 

 in Pennsylvania col- 

 lected from Sharon 

 shales (low in forma- 

 tion XII) in Law- 

 rence county, QQ, p. 

 97; and in Mercer 

 county, from roof of 

 Mc^ry, Ted 0. ^ol. i ^^ 9L43. Sharon coal bed, 

 QQQ, pp. 53, 126, loO. In the Subconglomerate on New River 

 at Quinnemont, W. Va. PP, p. 11.— -X//. Ought to be found 

 in the Lykens Valley and anthracite collieries. 



