WEST VIRGINIA GEOLOGICAL SURVEY 4I I 



Neuropteris biformis Lesquereux ( form) D. White. 



Bull. Geol. Soc. Am., vol. 6, 1895, p. 317. [Pottsville 

 group; Sewell formation]. 

 Neuropteris Elrodi Lesquereux (form) D. White. 



Bull. Geol. Soc. Am., vol. 6, 1895, p. 317. [Pottsville 

 group; Sewell formation]. 

 Neuropteris tenuifolia (Schlotheim) Sternberg. 



Flora d. Vorwelt (Tentamen), 1825, p. xvii. [Pottsville 

 group ; Clark formation] . 



Species characteristic of the upper Pottsville, especially 

 the jMercer group. ■■ The plant referred by Fontaine (Amer. 

 Jour. Sci., New Haven, vol. 11, 1876, p. 380), to this species 

 is undoubtedly referable to the N . Suiithii type. 

 Neuropteris flexuosa Sternberg. 



Flora d. Vorwelt (Tentamen), 1825, p. xvi, pi. xxxii, fig. 

 2, D. White: Bull. Geol. Soc. Am., vol. 11, igoo, p. 164. 

 [Pottsville group; Kanawha formation.] 



Abundant in the Kanawha formation and the Mercer coal 

 group. The species from the Dunkard formation listed (Sec- 

 ond Geol. Surv. Pa., Rept. Prog. PP, p. 49), under this name 

 is quite distinct. 

 Neuropteris Planchardi var. loncifolia (Fontaine & 1. C. 

 White) D. White. 



Second Geol. Surv. Pa., Rept. Prog. PP, 1880, p. 49, pi. 

 viii, fig. I. D. White: Bull. Geol. Soc. Am., vol. 14, 1903 

 [1904], p. 540. [Dunkard formation (Permian).] 



This variety is specifically distinct from N. flexuosa. 

 Neuropteris Lindleyana Sternb., var. Fontaine. 



Am. Jour. Sci., 3rd ser., vol. 11, 1876, p. 381. [Pottsville 

 group ; Quinnimont formation] . 



The species listed under this name is probably the A''. Poca- 

 hontas D. White. , 

 Neuropteris rarinervis Bunbury. 



Quart. Jour. Geol. Soc, London, vol. 3, 1847, p. 425, pi. 

 xxii. D. White: Bull. Geol. Soc. Am., vol. 11, 1900, p. 169. 

 [Pottsville group; Kanawha formation]. [Also in Alle- 

 gheny formation] . 



Plant unknown below the "Mercer Coal group" and upper 

 Kanawha. 

 Neuropteris sp. cf. gigantea Sternberg. 



Flora d. Vorwelt (Tentamen), 1825, p. xvii, pi. xxii. D. 

 White: Bull. Geol. Soc. Am., vol. 11, 1900, p. 163. [Potts- 

 ville group; Kanawha formation.] 



Type is strictly Pottsville. 

 Neuropteris ovata Hoffman. 



Teutschl. geogn. geol. dargest., Weimar, vol. 4, 1826, p. 

 159, pi. lb, figs. 5-8. D. White: Bull. Geol. Soc. Am., vol 



