1. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China;, Email: xuebine@scib.ac.cn
2. Southeast Asia Biodiversity Research Institute, Chinese Academy of Sciences, Yezin, Nay Pyi Taw, Myanmar, Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun 666303, Yunnan, China
3. National Parks Board, Singapore Botanic Gardens, 1 Cluny Road, Singapore 259569, Singapore
4. Herbarium, Division of Plant Science and Technology, Department of Biology, Faculty of Science, Chiang Mai University, Thailand;, Email: tyh@xtbg.org.cn
5. School of Life Sciences, Xiamen University, Xiamen 361005, Fujian, China
6. School of Biological Sciences, The University of Hong Kong, Pokfulam Road, Hong Kong, China