1. Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Institute of Botany, Guangxi Zhuangzu Autonomous Region and Chinese Academy of Sciences, CN-541006 Guilin, China
2. Panyu Central Hospital, No. 8, Fuyu East Rd., Shiqiao, Panyu, CN-511400 Guangzhou, Guangdong, China