1. Institute for Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Belgrade, Serbia
2. Institute for Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Belgrade, Serbia + Department of Botany, Institute of Biology and Ecology, Faculty of Science, Pavol Jozef Šafárik University in Košice, Košice, Slovakia
3. Natural History Museum, Belgrade, Serbia
4. Department of Biology, Medical University Varna, Varna, Bulgaria
5. Slovenian Forestry Institute, Ljubljana, Slovenia
6. Ecological Society “Endemit”, Belgrade, Serbia
7. Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria
8. Department of Biology, Faculty of Arts and Science, OsmaniyeKorkut Ata University, Osmaniye, Turkey
9. University of Ljubljana, Biotechnical Faculty, Department of Biology, Ljubljana, Slovenia
10. Institute of Biology - Bucharest, Romanian Academy, Bucharest, Romania
11. University of Sarajevo, Faculty of Forestry, Sarajevo, Bosnia and Herzegovina
12. Šumsko-gospodarsko društvo Županije Zapadnohercegovačke d.o.o., Posušje, Bosnia and Herzegovina