1. CAS Key Laboratory of Tropical Forest Ecology Xishuangbanna Tropical Botanical Garden Chinese Academy of Sciences Mengla Yunnan 666303 China
2. Center of Plant Ecology Core Botanical Gardens Chinese Academy of Sciences Mengla Yunnan 666303 China
3. Department of Biology Duke University Box 90338 Durham NC 27708 USA
4. University of Chinese Academy of Sciences Beijing 100049 China
5. German Centre for Integrative Biodiversity Research (iDiv) Halle‐Jena‐Leipzig Deutscher Platz 5e Leipzig D‐04103 Germany
6. Department of Molecular Evolution and Plant Systematics & Herbarium (LZ) Leipzig University Johannisallee 21‐23 Leipzig D‐04103 Germany