Abstract:Dipteronia dyeriana Henry is a rare and endangered species of China. Four populations, collected from Wenshan (WSh), Mengzi (MZ), Pingbian (PB) and Heilongtan (HLT) respectively, were used for the research on its morphological variation, its pattern of genetic variation, and the correlation between them. 27 macro-scopic and micro-scopic morphological characters, including those of branches, leaves, fruit and seeds, were measured. The results showed that, according to the mean variation coefficients of the ...