1881.] fossils of the Indian Gondwdna system. 185 



which I believe belong to this species force us to class it with Poly- 

 podium, keeping it still with the Polypodiaceae. 



Lower Gondwdnas : Baniganj group, Raniganj coalfield. 



Type Phegopteris, Mett. 



With the Polypodiaceae has also to be placed Alethopteris phego- 

 pteroides* Feistm. 



1876. Journ. As. Soc. Beng., Vol. XLV, p. 362, PI. XVIII. 

 A very large and interesting fern, of rare occurrence. 

 Lower Gondwdnas : Baniganj group, Raniganj coalfield. 



The ferns, hitherto named, are such, as can with some certainty (most- 

 ly from the state of the fructification) be correlated with living ferns. 

 There is, however, a by far greater portion of ferns which have to be class- 

 ed under separate orders whose relation to living forms can only be guessed, 

 while in some other cases it is entirely doubtful. 



Order Sphenopteeideae. 

 Sphenopteris hislopi,f Oldh. and Morr. 

 1862. Eajmahal Flora, Pal. ind., Gondwana Flora, Vol. I, PI. XXXI, figs. 1-5. 

 Upper Gondwdna : Bdjmahdl group, near Bindrabun, Eajmahal hills. 



Sphenopteris ? membranosa,% Feistm. 



1877. Eajmahal Flora, Pal. ind., Gondwana Flora, Vol. I, p. 81, PI. XXXII, 

 fig. 4. 



Tipper Gondwdnas : Bdjmahdl group, near Burio, Eajmahal hills. 



Order Neueopteeideae§ and Caediopteeideae.|| 



Genus Cyclopteris, 9 ^ Bgt. 



Gyclopteris oldhami,** Feistm. 



1877- Eajmahal Flora, Pal. ind. Gondwana Flora, Vol. I, p. 88, PI. XXXVI, figs. 

 1, 2, XXXVII, 5, 6. 



Upper Gondwdnas : Bdjmahdl group, near Bindrabun, Eajmahal hills. 



* Like Phegopteris, a living genus of ferns. 



f Proper name. 



% Thin membranaceous. 



§ From Neuropteris (neuron = the vein, and pteris = the fern) = the vein fern. 



|| Kardia (gr) = the heart and pteris ; the heart fern. 



IT Kyklos (gr) = circle and pteris. 



** Proper name. 



