1. Plant Phylogenetics and Conservation Group, Centre for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, P.R. China
2. Departamento de Ciencias Biológicas, Universidad de los Andes, CL 18-2 68, Bogotá, D.C. 111711, Colombia
3. Plant Phylogenetics and Conservation Group, Centre for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Kunming, Yunnan 650223, P.R. China;, Email: jieli@xtbg.ac.cn