1. State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany, the Chinese Academy of Sciences Beijing 100093 China
2. Department of Botany, National Museum of Natural History Smithsonian Institution PO Box 37012 Washington 20013–7012 DC USA
3. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden The Chinese Academy of Sciences Guangzhou 510650 China
4. Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden The Chinese Academy of Sciences Guangzhou 510650 China
5. National Institute of Biological Resources Incheon 22689 South Korea
6. School of Ecology and Nature Conservation Beijing Forestry University Beijing 100083 China
7. Department of Plant and Microbial Biology North Carolina State University Raleigh 27965 NC USA
8. State Key Laboratory of Genetic Engineering and Collaborative Innovation Center of Genetics and Development, Ministry of Education Key Laboratory of Biodiversity and Ecological Engineering, Institute of Plant Biology, Center of Evolutionary Biology, School of Life Sciences Fudan University Shanghai 200433 China
9. Department of Biology, Huck Institutes of the Life Sciences Pennsylvania State University, 510D Mueller Laboratory, University Park Pennsylvania 16802 USA
10. College of Life Sciences Liaocheng University Liaocheng 252059 China