1. Graduate Univ. of Science and Technology, Vietnam Academy of Science and Technology Cau Giay Hanoi Vietnam
2. Komarov Botanical Inst. of the Russian Academy of Sciences St. Petersburg Russia
3. Royal Botanic Garden Edinburgh Edinburgh Scotland UK
4. Inst. of Ecology and Biological Resources, Vietnam Academy of Science and Technology Cau Giay Hanoi Vietnam
5. Vietnam National Museum of Nature, Vietnam Academy of Science&Technology Hanoi Vietnam
6. College of Tourism and Landscape Architecture, Guilin Univ. of Technology Guilin China
7. Gesneriad Conservation Center of China (GCCC), National Gesneriaceae Germplasm Resources Bank, Gesneriad Committee, China Wild Plant Conservation Association, Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Inst. of Botany, Guangxi Zhuang Autonomous Region and Chinese Academy of Sciences Guilin China
8. Guangxi Key Laboratory of Plant Conservation and Restoration Ecology in Karst Terrain, Guangxi Inst. of Botany, Guangxi Zhuangzu Autonomous Region and Chinese Academy of Sciences Guilin Guangxi China
9. Gesneriad Conservation Center of China (GCCC), Guilin Botanical Garden, Chinese Academy of Sciences Guilin Guangxi China