32 AET. S. H. YABE. 



Geneva of Uncertaiii Sf/sfenmfie Position, 



CLADOPHLEBÎS, Brongniart. 



CLADOPHLEBIS cfi. DENTICULATA (Broxgniart). 



PI. III., %. 11. 



The only specimen obtainable being fragmentary, it has been 

 impossible to make an exact specific determination. Only the 

 apical portion of a pinnae is shown, about 4 cm. in length, 

 bearing seven j)iniiules on one side of the slender racliis. The 

 pinnules are more or less falcate, rapidly narrowing forward to 

 the acute apex, and show a few serrations along the margin ; 

 they are separate, but are set close together, being attached by the 

 whole base. The venation is fine but quite distinct ; the median 

 vein is somewhat flexuous, and the lateral veins are distant, op- 

 posite, directed acutely forward and forked once near the base. 



Fragmentary as the specimen is, its resemblance to Glado- 

 phlehis denticulata (Brongn.) is considerable, all the characters 

 seen in it being quite similar to those of this well known Jurassic 

 species. 



The full account of 0. denticulata is given in the Jurassic 

 Flora Pt. I., p. 134. 



CLADOPHLEBIS KORAIENSIS sp. nov. 

 PI. IL, fig. 1 ; pi. III., figs. 12, 13. 



Frond tripinnate in the anterior portion and quadripinnate 

 in the posterior ; main stalk longitudinally striated, rather broad 



