188 O. Feistmantel — A sketch of the history of the [No. 3 



Thinnfeldia subtrigona* Feistm. 

 1879. Pal. ind., Gondwana Flora, Vol. I, p. 203, PI. I, fig. 7. 

 Tipper Gondwdnas : Sripermatur group near Vemaveram, S. Kistna 

 country. 



There are several other fragmentary specimens, which I have also 

 referred to Thinnfeldia, but which need not be repeated here. 



Genus Dichopteris,f Bgt. 

 Dichopteris ellorensis, Feistm. 

 1879. Pal. ind., Gondwana Flora, Vol. I, p. 204, PI. II. figs. 8-10. 



Upper Gondwdnas : Sripermatur group, at Ragavapuram, Ellore Dis- 

 trict, S. Godavari. 



Genus Pachypteris,% Bgt. 

 Pachy pteris specif ca,§ Feistm. 

 1876. Feistmantel, Kach Flora, Pal. ind., Gondwana Flora, Vol. II, p. 32, PI. 

 Ill, fig. 6. 



Upper Gondwdnas : Umia group, near Bhujuri in Kach. 

 Another species was described by me from Kach, which is somewhat 

 doubtful. 



Order Taenioptektde^:. 

 Genus Taeniopteris,\\ Bgt. 

 Taeniopteris densinervis*^ Feistm. 

 1876. Feistmantel, Kach Flora, Pal. ind., Gondwana Flora, Vol. II, p. 19, PI. 

 II, %. 6. 



I could not assign this fragmentary specimen to any of the subgenera 

 of Taeniopteris. 



Upper Gondwdnas : Umia group, near Kukurbit, in Kach. 

 Sub-genus Macrotaeniopteris** Schimp. 



This comprises all the large and broad-leaved forms, in Europe it 

 belongs principally to the mesozoic epoch. In India it occurs both in the 

 Lower and Upper Gondwanas. 



* Somewhat trigonal. 



f Dicha = in two ; pteris = fern ; the forked fern. 



X Pachys (gr) = thick, coarse ; pteris = fern. 



§ Typical. 



|| The ribbon fern. 



f Densus = close ; nervus = the vein. 



** Makros (gr) = large and taeniojjtcris. 



