JURASSIC PLANTS FROM KAGA, HID A, AND ECHIZEN. 51 



oblong, or nearly round, obtuse at apex, unequal at base, shortly 

 petiolecl; veins numerous, simple, parallel, 34-50 in number; inter- 

 stitial veins very fine. 



Podozamites-Remii Geyler, Ueber foss. Pflanz, a. d. Juraform. 

 Japans, p. 229-230, pi. XXXIII, fig. 4a, XXXIY, 1, 2, 5a, XXXIY, 

 3 b, 4. 



Leaflets of this Japanese species of Podozamites are very plentiful- 

 ly found at Shimamura and Okamigö, where they show great diver- 

 sities in shape, which however are, I believe, to be considered merely 

 as a variability so frequent among the leaves of cycads. On this ac- 

 count I do not adopt the varietal names of latifolia and angustifolia 

 proposed by Dr. Geyler. 



The shape of the leaflet is either ovate (e. g. fig. 2, 6, PI. VI), 

 or oblong (e. g. fig. 3b, PI. IV, fig. 3c, 7a, PL VI) which often ap- 

 proaches to elliptical (e, g. fig. 7b, PI. IV, fig. 8c, PI. VI, fig. 12a, 

 PI. IX). Between these forms there are all sorts of gradations from 

 one to the other. 



A small round leaflet represented in fig. 4, PI. XII, 11-12 mm. 

 in diameter and with very fine veins a little over 30 in number is, I 

 believe, an abnormal form of this species. 



The base of the leaflet is either subcordate (PI. Ill, fig. 6a, PI. 

 VI, fig. 2, 4, 6), or it passes gradually into a petiole without leaving 

 any indentation on either side of it (PI. Ill, fig. 6c, PI. IV, fig. lb). 



It is to be noticed here that in all of the leaflets of this species 

 interstitial veins are in most cases distinctly observable, generally one 

 (fig. 6e, PI. Ill), but sometimes two between the principal ones; and 

 that in all of them the two sides of the base are more or less unsym- 

 metrically formed, as may be seen most prominently in fig. 6c, PI. 

 Ill, fig. 3b, PI. IV and fig. 3b, 3d, PI. IV. 



Loc. — Shimamura, Ozö, Yanagidani, Tanimura, Olcamifjo. 



