552 



CYCADOPHYTAN FEONDS 



[CH. 



forked veins. Aiber compares the fragments with Pterophyllum 

 blechnoides Sand, from Germany^- 



Pterophyllum Camhryi Renault. 



This Permian species from Autun^ is similar to P. Fayoli, 

 but differs in the more slender rachis and in the finer venation 

 of the hnear, acute, pinnae. The pinnae in Renault's specimen 

 reach a length of 4-8 cm. and are from 3-5—4 mm. broad ; they 

 are slightly confluent at the base and the veins occasionally fork. 



Fig. 612. Pteropkyllum Fayoli. (From the type -specimen, Paris; J nat. size.) 



Among other Palaeozoic species are Pterophyllum Grand'Eury- 

 anum Sap. and Mar.^ discovered by Grand'Eury in the Coal 

 Measures of France, P. blechnoides Sand.* from the Upper Coal 

 Measures of Oppenau and recorded by Geinitz^ from the Middle 

 Permian of Germany, P. Gottaeanum Gutb.^, a similar type, also 

 from Permian rocks, but with coarser venation. The specimens 

 figured by Geinitz as P. blechnoides and P. Cottaeanum are in 

 the Dresden Museum: the former species is represented by a 



1 Sandberger (64) PI. ii. figs. 1 — i. 



' Renault (96) A. p. 322, fig. 64. 



* Saporta and Marion (85) p. 109, fig. 58 A. 



1 Sandberger (64) PI. ii. figs. 1^. = Geinitz (73) Pi. m. fig. 9. 



« Geinitz fig. 8. 



