Fig. 7. The map represents the six major biogeographical areas and dispersal routes of Diestramima : mountainous region of southern Yunnan (A), mountainous hilly region of Yunnan and Guangxi (B), low mountainous hilly region of Guangxi, Guizhou and Hunan (C), Sichuan basin (D), Jiangnan hilly region (E) and mountainous hilly region of Fujian and Guangdong (F).