Abstract
From the viewpoint of floristic geography, Yunnan and Hainan like other areas in South China are transitional areas between Holarctic and Palaeotropic Floral Kingdoms. Accordingly, plants of both floral kingdoms are mixed together. Besides, there are many indigenous taxa of plant.
Physical conditions, especially in Yunnan, are very complicated; local differences in habitats are great. Thus, various types of plant communities are found from tropical rain forest to arctic vegetation in summit areas. Special interest is paid to sclerophyllous oaks and their communities.
