FROM KOZUKE, KIT, AWA, AXD TOSA. 917 



veins are ^■ery fine, once or twice forked, and rise at first acutely, but 

 soon hend outward so as to be nearly perpendicular ti:) the mid vein. 



The frao'ments in Figs. 6 and 7, pi. XXI, from Kii with evanes- 

 cent midvein resemble in mariy respects the fern just described. But 

 the pinnules seem to l)e bnjader and the veins coarser. 



The specimens represented in the figures aljove cited are at all 

 events too imperfect to allow even a correct generic determination. 



IjOC. — Kagahani, Yuasa (?). Rare. 



8. Sphenopteris tenuieula m. 

 PI. XX, Fig. 11. Fl. XXL Figs. 2, 2a. Fl. XXYIir. Fig. 6. 



Fnvul trij)itnta(cd ; mcliises of variou!^ orders slender; ultimate 

 pinna' short; pinnides tliin, remote, ohtnse, reri/ aciiiel if directed forirard, 

 ciincatc at hase, entire or lohed or evoi pinnateJi/ parted ; lobes or partitions 

 fen-, also obtuse a}id some of il i em mai/ a<jain be furnislied with ;? or 3 coarse 

 crenations ; reins few, eipial. fine, direnjent, and sereraJ times forliCd. 



This fern is present only in small fragments, yet is sufficiently 

 characterised to be treated as a new form. It seems to have been 

 toleral)lv delicate, as can l)e judged from the slender rachises and 

 thin pinnules. 



Sphenopteris Aucrbachi Trautschold (Der Klin'sche Sandstein, 

 p. li), pi. XYIII, fig. 5) and Sphenopteris Goeppcrti Dunker (Mono- 

 graphie der norddeutschen Wealdenbildung, p. 4. pi. I, fig. 6, IX, 

 1-3) are near relatives of our Japanese species. Ihit in the f)rmer the 

 venation is obsolete, while in the latter the lobe- are single-veined. 

 Tlnirsnptcris breripennis Fontaine (The Potomac or Younger ^Ies(^zoic 

 Flora, p. 124, Pi. XXXIY, fig. ?,, XXXYI, 2) is also not unlike our 

 plant, l)ut possesses more luimerous veins. 



