1 CAS Key Laboratory of Tropical Plant Resources and Sustainable Use, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303, Yunnan, China. liuhongmei@xtbg.ac.cn.
2 Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences, Menglun, 666303, Yunnan, China.
3 College of Life and Environmental Sciences, Hangzhou Normal University, Hangzhou, 310036, China.