2o STUDIES IN GEOLOGY, No. 4 



Lesq. 11 which comes from the Alabama Coal measures 

 (Westphalian). 



The species appears to be unlike previously known forms 

 and I have ventured to describe it as new. It is not at all 

 uncommon in the Paracas outcrop. 



Eremopteris whitei sp. nov. 

 IV 



Eremopteris elegans Lesquereux, Coal Flora, p. 294, pi. 53, fig. 7, 

 1880 (not Gutbier, Ettingshausen or Schimper) . 



This form, which is not uncommon at Paracas, appears to 

 be identical with the material described by Lesquereux from 

 the Pbttsville formation of Pennsylvania and Illinois and 

 referred to the European species variously named Sphenop- 

 teris asplenites by Gutbier. 12 Asplenites elegans by Ettings- 

 hausen 13 and Rhacopteris elegans by Schimper. 14 The 

 American form is entirely distinct from the European. No 

 complete material of the Paracas species is available but from 

 the disposition of the three stout stipes shown in the speci- 

 men figured it would seem that the frond was very large 

 and quadri-pinnate. The stipes are stout, longitudinally 

 channeled and not winged. The pinnae are linear oblong, 

 their divisions or pinnules are oblique, oblong or rhomboidal 

 in form, narrowed to* the somewhat decurrent base, deeply 

 pinnately cut by narrow sinuses into cuneate divisions which 

 are rounded or sub-crenate distad. The venation is flabellate 

 and largely immersed in the thick substance of the lamina. 



In the size of the frond and stoutness of the stipe the 

 present species is reminiscent of Bremopieris bilobata White, 

 but the pinnules are different in form. I have not seen actual 

 specimens of Lesquereux's types and it may be that the Par- 



11 Lesquereux, L., Coal Flora, vol. i, p. 292, pi. 53, figs. I, 2, 1880. 

 12 Geinitz, H. B., Verst. Steink. Sachsen, p. 17, pi. 24, fig. 6, 1855. 

 13 Ettingshausen, C., Abh. k. k. Geol. Reichs. Bd. I, Ab. 3, No. 4, 

 p. 14, pi. 3, figs. 1-3; pi. 4, 1852. 

 "Schimper, W. P., Traite Pal. Veget. tome i, p. 482, 1869. 



