CARBONIFEROUS. 119 



A lethopteris oreopteridis. 

 Sternberg, Vers. ii. p. 145. 



Pecopteris aspidioides. 



Sternberg, Vers. i. p. xx, pi. 1. fig, 5. 

 Horizon. Coal Measures. 



Locality. British. Gloucestershire : Forest of Dean. Shropshire : Madeley 

 Court (Presented by H. Pearce, Esq.) Worcester- 

 shire : Forest of Wyre. Somersetshire : Radstock. 

 Foreign. Saxony : Zwickau. 



Pecopteris villosa, Brongniart. 



Pecopteris villosa. 



Brongniart, Hist. d. Veget. Foss. p. 316, pi. xiv. fig. 3. 



Dawson, Acadian Geol. 2nd Ed. p. 485, 1868. 



Foss. Plants of Lower Carb. Canada, p. 37, 1873. 



Fontaine and White, Perm or Upper Carb. Flora, p. 16. 



Lesquereux, (?) Coal Flora in Pennsyl. p. 253. 



Report Geol. Survey of Illinois, vol. ii. p. 442. 



Rbmer, Palaeontographica, vol. ix. p. 36. 



Schimper, Traite d. Paleont. Veget. vol. i. p. 503. 



Sternberg, Vers. ii. p. 160. 



Zeiller, Flore Houil. des Asturies, p. 12. 

 Cyatheites villosus. 



Bronn, Index Palseont. p. 365. 



Geinitz, Vers. d. Steinkh. in Sachsen, p. 25, pi. xxix, figs. 6-8. 



Goppert, Syst. Fil. Foss. p. 323. 



Heer, Flora Foss. Helv. p. 30. 



Roehl, Foss. Flora d. Steink. Form. Westphalens, p. 87. 



Unger, Synop. Plant. Foss. p. 87. 

 Genera et Species, p. 158. 

 Danceites villosus. 



Stur, Morph. u. Syst. d. Culm u. Carbonfarne, p. 150. 



Remarks. It is very doubtful if Pecopteris villosa, Brongt. should be 

 regarded as a species. In the type specimen no trace of the veins is shown, 

 thus we are ignorant of one of the most important characters for comparing 

 it with the other Pecopteroids, to which it very closely stands. I have 

 latterly regarded it as only a condition of Pecopteris oreopteridia, from which 

 in general outline it does not appear to differ. Zeiller,* although coming to 

 no definite conclusion, thinks it may perhaps belong to Pecopteris abbreviata, 

 as he has observed on specimens of that plant a similar villose character. In 

 the meantime a provisional specific position has been accorded it, awaiting 

 further data for the decision of its real place, whether specific or only varietal. 



Horizon. Coal Measures. 



Locality. British. Yorkshire (?). 



Pecopteris polymorpha, Brongniart. 



Pecopteris polymorpha. 



Brongniart, Prodrome, p. 56. 



Hist. d. Veget. Foss. p. 331, pi. cxiii. (fig. 2 ?). 



1 Bunbury, Quart. Journ. Geol. Soc. vol. iii. p. 429. 

 Dawson, Acadian Geol. 2nd edit. p. 485, 1868. 



Foss. Plants of Lower Carb. Canada, p. 36, 1873. 

 Fontaine and White, Perm, or Upper Carb. Flora, p. 17. 

 Grand 'Eury, Flore Carbon, du D6p. de la Loire, p. 74, pi. viii. figs. 10, 1 1. 



* More Houil. des Asturies, p. 13. 



