Plate III. 



(All the figures, except fig. 14, are in natural size.) 



Nihsonia oi'ientalis He. P. 13. 



Figs. 1-5. 

 Nilssonsia sp. P. 14. 



Fig. 6. 

 Dioonîtes (?) sp. P. 14. 



Fig. 7. 

 Goniopteris hymenopliylloides Bkonon. ? P. 21). 



Fig. 8. 

 Coniopteris Heerianus (YoK.) P. 27. 



Fig. 9. A fertile pinna. 



Fig. 4. A pinnule, magnified two diameters. 

 Equisetum usliimarense Yok. P. 43. 



Fig. 10. 

 Cladophlehis cfr. denticulata Beongn. P. 32. 



Fig. 11. 

 Cladophlehis koraieoisis sp. nov. P. 32. 



Figs. 12-13. Both represent the fertile pinnae ; on fig. 13, tJie 

 round dots are omitted. 

 OnycMopsis elongata (Geylee). P. 22. 



Fig. 15. 

 Sagenopferis bilohata sp. nov. P. 41. 



Fig. 16. a, var. major; b, c, var. cuneata. 



