1. Institute for Botany and Botanical Garden, Faculty of Biology, University of Belgrade, Belgrade, Serbia
2. University of Sarajevo, Faculty of Science, Department of Biology, Sarajevo, Bosna i Hercegovina
3. Institute of Chemistry, Technology and Metallurgy - National Institute of the Republic of Serbia, University of Belgrade, Belgrade, Serbia
4. Moravian Museum, Department of Botany, Brno, Czech Republic
5. Natural History Museum, Belgrade, Serbia
6. Department of Biology, Medical University Varna, Varna, Bulgaria
7. University of Sarajevo, Faculty of Forestry, Sarajevo, Bosnia and Herzegovina
8. Šumsko-gospodarsko društvo Županije Zapadnohercegovačke d.o.o., Posušje, Bosnia and Herzegovina
9. Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Sciences, Sofia, Bulgaria
10. Institute of Biology - Bucharest, Romanian Academy, Bucharest, Romania