1. Department of Geographical & Sustainability Sciences University of Iowa Iowa City Iowa USA
2. Department of Environmental Biology Sapienza University of Rome Rome Italy
3. Department of Biological, Geological and Environmental Sciences Alma Mater Studiorum University of Bologna Bologna Italy
4. Alpine National Botanical Conservatory Gap France
5. WSL Swiss Federal Research Institute Birmensdorf Switzerland
6. Institute of Biology, Faculty of Natural Sciences and Mathematics University of Ss. Cyril and Methodius Skopje North Macedonia
7. Department of Botany and Zoology Masaryk University Brno Czechia
8. Faculty of Biology Institute of Botany and Botanical Garden Jevremovac, University of Belgrade Belgrade Serbia
9. Faculty of Forestry University of Banja Luka Banja Luka Bosnia and Herzegovina
10. Hungarian Department of Biology and Ecology Babeș‐Bolyai University Cluj‐Napoca Romania
11. Plant Science and Biodiversity Center Slovak Academy of Sciences, Institute of Botany Bratislava Slovakia
12. Department of Plant and Fungal Diversity and Resources Institute of Biodiversity and Ecosystem Research, Bulgarian Academy of Science Sofia Bulgaria
13. Department of Botany and Biodiversity Research University of Vienna Vienna Austria
14. Research Unit of Biodiversity Research (CSIC/UO/PA) University of Oviedo Mieres Spain