. Fossil plants : for students of botany and geology . Paleobotany. 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 Fig. 612. Pteropkyllum Fayoli. (From the type-specimen, Paris; J
. Fossil plants : for students of botany and geology . Paleobotany. 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 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. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Seward, A. C. (Albert Charles), 1863-1941. Cambridge : University Press
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