r.niPiDopsrs. 



211 



Genus EHIPIDOPSIS, Schmalhausen, 1879. 

 [Mem. Acad. Imp. Sci. St. Petersb., ser. vir, vol. xxvii, p. 50.] 



Leaves large, usually orbicular or oval, with a long petiole, 

 palraisect, coriaceous. Segments 5-10, cuneate, entire, obtuse, 

 flabellate, lateral segments usually smaller than the median. 

 Nerves numerous, radiating, several times dichotomised. 



This genus was instituted by Schmalhausen for the reception of 

 some large leaves from rocks of Permian age in Russia not dis- 

 similar in habit to those of Ginlcgo. Similar leaves have since been 

 found in the Permo-Carboniferous of Tndia and Argentina. 



Fig. 46. — Rhipidopsis ginglcoides, Schmal. After Feistmantel. Nat. size. 



1. Rhipidopsis g-inkgoid.es, Schmalhausen. 

 (Text-fig. 46.) 



1879. Rhipidopsis ginglcoides, Schmalhausen, Mem. Acad. Imp. Sci. St. Petersb., 

 ser. vn, vol. xxvii, p. 50, pi. viii, figs. 3-12 ; pi. vi, fig. 1. 



1881. R. ginglcoides, Feistmantel, Rec. Geol. Surv. India, vol. xiv, pt. 3, 

 p. 257, pi. ii, fig. 2. 

 R. ginglcoides, Feistmantel, Flora Gondw. Syst., vol. iii, pt. 3, p. 122. 



1885. R. ginlcgoides, Renault, Cours Bot. foss., 4 e ann., p. 67, pi. v, 



figs. 3, 4, 7, 8. 



1886. R. ginglcoides, Feistmantel, Flora Gondw. Syst., vol. iv, pt. 2, p. 43, 



pi. iii A, figs. 1, 2. 



1895. R. ginlcgoides, Bodenbender, Rev. Mus. La Plata, vol. vii, table 



opposite p. 148. 



1896. R. ginlcgoides, Bodenbender, Zeitschr. deutsch. geol. Gesell., 



vol. xlviii, table opposite p. 772. 

 1900. R. ginlcgoides, Zeiller, Elem. Paleobot., p. 250, text-fig. 177. 



