1. State Key Laboratory of Biocontrol and Guangdong Provincial Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University , Guangzhou 510275 , China
2. State Environmental Protection Key Laboratory of Regional Eco-process and Function Assessment, Chinese Research Academy of Environmental Sciences , 8 Dayangfang, Beijing 100012 , China
3. College of Horticulture and Landscape Architecture, Zhongkai University of Agriculture and Engineering , Guangzhou , China
4. Center for Integrative Conservation, Xishuangbanna Tropical Botanical Garden, Chinese Academy of Sciences , Yunnan , China
5. Key Laboratory of National Forestry and Grassland Administration for Orchid Conservation and Utilization, and the Orchid Conservation and Research Centre of Shenzhen , Shenzhen , China
6. Department of Botany, National Museum of Nature and Science , Tsukuba , Japan