PL.'VTE XXXIV. 



Page. 



1 . Rliamnus ( '() acuta Heer 93 



2-5. Paliurus integrifolius HoUick 91 



6,7. Paliurus affinis Heer? 92 



8. Zizyphus elegans Hollick _ 92 



9, 10. Zizyphus oblongus n. sp 92 



11, 12. Zizyphus gronlandicus Heer 93 



13. Zizyphus Lewisiana Holhck 93 



14. Paliurus ovalis Dawson 91 



15-17. Ceanothus constrictus Ji. sp 93 



IS, 19. Sterculia sp 95 



20. Sterculia Snowii Lesq J 94 



21 , 22. Sterculia pre-lalirusca n. sp _ 94 



198 



