CARBONIFEROUS. 133 



Lebour, Illustrations of Foss. Plants, p. 49, pi. xxiv. 



Lesquereux, Geol. of Pennsyl. vol. ii. p. 864. 



Eoehl, Foss. Flora d. Steiuk. Form. Westph. p. 72, pi. xiv, figs. 1-4, 



pi. xxi. fig. 9, pi. xxxi. fig. 4. 

 Sternberg, Vers. i. fasc. 4, p. xxi., Vers. ii. p, 142, 

 Unger, Synop. Plant. Foss. p, 79, 



Genera et Species, p. 144. 

 Pecopteris lonchitica. 

 Brongniart, Prodrome, p. 57. 



Hist. d. Veget. Foss. p. 275, pi. Ixxxiv, 



Lindley and Hutton, Foss, Flora, vol. ii. pi. cliii. 

 Morris, Trans. Geol. Soc. 2nd ser. vol. v. p. 488. 



Sauveur, Veg6t. Foss. de la Belgique, pi. xl. fig. 3, pi. xli., xlij, figs, 4, 5. 

 Aletkopteris heterophylla. 



Bronn, Index Palseont. p. 23. 

 Dawson, Acadian Geol. 2nd Ed. p. 484, 1868. 

 Quart. Journ, Geol. Soc. vol. xxii. p. 157. 

 Canadian Nat. vol. viii. p. 445, 

 Gbppert, Syst. Fil. Foss. p. 297. 



Roehl, Foss. Flora d. Steink. Form. Westph. p 82, pL xxxii. figs, 2, 5, 9, 

 Sternberg, Vers. ii. p. 143. 

 Unger, Synop. Plant. Foss. p. 79. 



Genera et Species, p, 145, 

 Pecopteris heterophylla. 



Brongniart, Hist. d. Veget. Foss. p. 281. 



Hooker, Mem. Geol. Survey Gt. Brit. vol. ii. pt. 2, p. 400, fig. 1, 1848, 

 Lindley and Hutton, Foss. Flora, vol. i. pi. xxxviii. 

 Morris, Trans. Geol, Soc. 2nd ser. vol. v. p. 488. 

 Alethopteris Mantelli. 



Boulay, Terr. Houil. du Nord de la France, p. 34, 



Bronn, Index Palseont. p. 23. 



Giebel, Deutschl. Petrefacten, p. 50. 



Goppert, Syst. Fil. Foss. p. 297. 



Roehl, Foss. Flora d. Steink. Form. Westph. p. 74, pi. xiii. fig, 4 



Unger, Synop. Plant. Foss. p. 79. 



Genera et Species, p. 145. 

 Zeiller, Veget. Foss. du Terr. Houil. p. 74, pi. clxiii. figs. 3, 4. 



Bull Soc. Geol. France, 3 e ser. vol. xii. p. 199. 



Pecopteris Mantelli. 



Brongniart, Prodrome, p. 57. 



Hist. d. Veget. Foss. p. 278, pi. Ixxxiii, figs. 3, 4. 



Dawson, Quart. Journ. Geol. Soc. vol. xv. p. 69, 1859. 

 Eichwald, Lethsea Rossica, vol. i. p. 88. 

 Lindley and Hutton, FOBS, Flora, vol. ii. pi, cxlv, 

 Sauveur, Veget. Foss. de la Belgique, pi. xl. figs. 1, 2, 

 Sternberg, Vers. ii. p. 142, 



Aletkopteris Sterribergii. 



Bronn, Index Palseont. p. 24. 



Ettingshausen, Steinkf. v. Radnitz, p. 42, pi. xviii. fig. 4 



Goppert, Syst. Fil. Foss. p. 295. 



Roehl, Foss. Flora d. Steink. Form. Westph. p. 73. 



Stur, Jahrb. d. k. k. Geol. Reichsanst, vol. xii, p, 143, 



Unger, Synop, Plant. Foss. p. 79. 

 Genera et Species, p. 144. 

 Alethopteris urophylla. 



Bronn, Index Palaeont. p, 24, 



