Plate I. 



(All^the figures are in natural size.) 



Adiantiies Seioardi sp. nov. P. 39. 



Figs. 1-7, Specimens from^Korea. 



Fig. 8. A better specimen from Kami-uchinami, Onogori, prov. 

 Echizen in Japan. 

 Onychiopsis elongata (Geyler). P. 22. 



Figs. 9-11. Specimens from Korea ; fig. 9 is a sterile pinna, while 



the others are fertile ones. 

 Figs. 12-14. Specimens from Japan ; fig. 12 shows a specimen 

 from Kami-uchinami, Onogori, which was referred by 

 Mr. Matsushima to Sphenopteris Mantelli ; and figs. 13 

 and 14 are fertile ones from Shimamura, prov. Kaga. 

 Sphenopteris sp. P. 38. 



Fig. 15. A fertile pinna. 



