PLATE XVII. 



Figs. 1-7. Populus kausaseaua, .sp. nov '''-^ 



8-11. Diospyros rotundifolia Lt's<i - H* 



lii-14. Hedera orbiculata (Heer) Lesq 129 



15. Hedera ovalis Lesq 12'J 



16. Andromeda Sno\vii,sp. nov H" 



17,18. Andromeda cretacea, sp. nov 117 



292 



