JUKASSIC PLANTS PEOM KAGA, HIDA, AND ECHIZEN. 61 



I have not been able to find any specimen undoubtedly 

 referable to this species. 



3. Czekanowskia Heer. 



This genus is doubtfully represented in Japan, and only by 

 fragments which most approximate to 



42. Czekanowskia rigida Heer (?) 

 PI. XII, fig. 11. PL XIII, fig. 10. 

 An indistinct specimen from Ozö (fig. 10, PI. XIII) has linear 

 leaves about 1 mm. broad, which dichotomize and are in some cases 

 seen with a distinct median vein. Leaves on the right-hand side of 

 the stone appear as if fasciculated. Fig. 11, PI. XII, shows a single 

 leaf 1 mm. broad, and once forked with a distinct canal running 

 throuo'h the lobes. From these characters our fragments seem to 

 be referable to the above denominated species which is found in 

 Siberia, China, Russia and England, and also in the Rhaetic of 

 Sweden. (Comp. Heer's Beiträge z. Juraflora Ostsib. u. d. Amur]., 

 1876, p. 70, PI. V, fig. 8-10, PI. VI, 7, X, 2a, etc. Beitr. 1878, p. 

 7. PI. I, fig. 16, p. 76, PI. IV, fig. 3b c. Schenk in Pichthofen's China, 

 vol. IV, p. 251, PI. L, fig. 7, p. 262, PI. LTV, fig. 2a. Schmalhau- 

 sen's Beitr. z. Juraflora Russl. p. 36, PL V, fig. 2e, 6a, 7. etc.). 



Loc. — Ozo, Okamigo. 



4. Taxites Brogt. 



43. Taxites sp. 



PL X, fig. 15-19. PL XII, fig. 16, 17. 



The leaflets in the above cited figures all belong, I believe, to one 



and the same species. They are linear-lanceolate, 10-15 mm. long 



and 2.5-3 mm. broad, obtusely pointed at apex and constricted at 



base, with a weak midrib. In form they remind us of many of the 



so-called Cijeaditex, e. g. such as C. zcimioides Tueckenby (Proc. Geol. 



