Alet. 



14 



in McHugh's well ; and at Carbon colliery No. 1, T3, pp. 310, 

 319, 325. In the roof of the Barnet (bed A) a few fragments 

 only were seen at the Reed mine. XIII, 



Alethopteris robusta. Lesq. New species (not figured) 

 inLacoe's cabinet at Pittston ; from Cannelton, Pa. Additions 

 to Coal Flora, P, p. 835, 1884. XIII 



Alethopteris rugosa. See Callipteridium rugosum. 

 XIII 



Alethopteris serlii. {Peoopteris serlii^ Brogniart, 1882,) 



f 



Collett's Indiana of 1883, page 58, plate 12, fig. 2. (See Les- 

 quereux's Coal Flora, Report P, Penn. Geol. Survey, plate 29, 

 figs. 1 to 5.) XIII\ lower strata of the Middle Coal Measures; 

 abounds in the Mammoth bed, anthracite region ; not rare at 

 Cannelton, Beaver Co., Pa.; abundant in Mazon creek nodules, 

 III. — In the Broad Top coal basin, Middle Pennsylvania, I. C. 

 White reports that A, serlii seems to be mixed occasionally 

 with the A, pennsylvanica leaves which crowd the bottom of 

 the Powelton shale, over the Cook-Fulton bed B, as at Mc- 

 Hugh's. T3, pp. 62, 310. — Also that it is found in the black 

 slate under Campbell's ledge conglomerate in the gap at Pitts- 

 ton, Luzerne county. Pa. G 7, page 39. XI 



Alethopteris serriila. See Pecopteris serrula. XIII 



Alethopteris solida. See Pecopteris solida. XIII 



