1. Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, P.R. China
2. Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, P.R. China, School of Life Science, Yunnan University, Kunming 650091, P.R China, University of Chinese
Academy of Sciences, Beijing 100039, P.R. China
3. Jodrell Laboratory of Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, U.K.
4. Key Laboratory of Plant Resources Conservation and Utilization, Jishou University, College of Hunan Province, Jishou 416000, Hunan, P.R. China
5. Key Laboratory for Plant Diversity and Biogeography of East Asia, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204, Yunnan, P.R. China;, Email: hsun@mail.kib.ac.cn