DESCEIPTION OF SPECIES. 49 



thought that specimens of it must have really come from that horizon, and 

 have by mistake been placed with the plants from the Mesozoic. There is 

 no doubt, however, that it is a Mesozoic plant. It is a good deal like Heer's 

 Asterocarpus Meriani, and also resembles A. platyrachis, but the fact that 

 the pinnules are always separate to their bases, except at the ends of the 

 ultimate pinna?, will distinguish this plant. 



Formation and locality. — Found at Manakin, in the material taken out 

 of the Aspinwall Shaft, and at Carbon Hill, in the strata over the bottom 

 coal seam. 



CLADOPHLEBIS, Saporta. 



Cladophlebis subfalcata, spec. nov. 



Plate XXIX, Pig. 5. 



Frond bi- or tripinnate. Principal rachis stout and rigid. Ultimate pinnae linear- 

 lanceolate in shape, alternate, and going off nearly at a right angle from the principal 

 rachis. Pinnules alternate, separate to the base, inclined forward, oblong-ovate, and 

 subfalcate, rather thin and delicate in texture. Middle nerve strong at base, and dis- 

 solving into branches toward the end. Lateral nerves going off obliquely, the lower 

 forking twice, the upper once forked, or one of the branches forking a second time. 

 Nerves sharply defined but slender. 



This plant is, I think, identical with none that have been previously 

 described. It is something like Aspknites Bosserti, Schenk, from the 

 Rhsetic of Germany, but is a smaller and more delicate plant, and has the 

 lateral nerves more frequently branched. It also resembles Mertensides 

 bullatus, but differs in the absence of the spatulate pinnules, and in the for- 

 ward inclination of the pinnules. 



It is strikingly like the plant described by Feistmantel in the "Palag- 

 ontologia Indica," series xi, 2, as found in the Upper Gondwana Group of 

 India, in the Satpura Basin, and figured on Plate II, Figs. 2-7. The only 

 difference is that the plant from India has a smaller rachis, and the pinnules 

 are more often united at base. Feistmantel considers this plant as iden- 

 tical with AletJiopteris Whitbiensis. I think this identification doubtful, 

 and would rather consider it as near to Asplenites Bosserti, if it is not a new 

 species. 



Formation and locality. — Found only at Manakin, in the material from 

 the Aspinwall Shaft. Exact horizon not known. 

 4 F 



