1. Department of Systematics, Biodiversity and Evolution of Plants, University of Goettingen
2. Philipps University of Marburg
3. Université du Québec en Abitibi-Témiscamingue
4. Xi’An Jiaotong University Jiaotong University
5. Universidad de Extremadura
6. Forest Science and Technology Centre of Catalonia (CTFC)
7. East China Normal University
8. University of Quebec in Abitibi-Témiscamingue
9. Longquan Nature Coservtion Center of Baishanzu National Park
10. Universiti Malaysia Terengganu