A Preliminary Study on Conservation Genetics of Endangered Vatica guangxiensis (Dipterocarpaceae) Genetic Diversity and Population Differentiation of Vatica guangxiensis A Phytocoenological Study on Vatica guangxiensis ( Dipterocarpaceae) Community in Mt. Maocaoshan, Xishuangbanna A PRELIMINARY STUDY ON CONSERVATION OF ENDANGERED SPECIES VATICA GUANGXIENSIS