1. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 China
2. Center of Conservation Biology, Core Botanical Gardens Chinese Academy of Sciences Guangzhou 510650 China
3. Germplasm Bank of Wild Species, Kunming Institute of Botany Chinese Academy of Sciences Kunming 650201 China
4. University of Chinese Academy of Sciences Beijing 100049 China
5. School of Life Sciences Yunnan University Kunming 650500 China
6. Environmental Engineering and Management Research Group Ton Duc Thang University Ho Chi Minh Vietnam
7. Faculty of Environment and Labour Safety Ton Duc Thang University Ho Chi Minh City Vietnam
8. Faculty of Biology VNU University of Science Hanoi Vietnam