1. The Natural History Museum, London, UK
2. Russian Academy of Sciences, Komarov Botanical Institute, Moscow, Russia
3. University of Camerino, Camerino, MC, Italy
4. Missouri Botanical Garden, Antananarivo, Madagascar
5. Institute of Biology and Ecology, Pavol Jozef Šafárik University, Košice, Slovakia
6. Polish Academy of Sciences, W. Szafer Institute of Botany, Kraków, Poland
7. Bryophyte Surveys Ltd, Stroud, Gloucestershire, UK
8. University of Palermo, Palermo, Italy
9. Department of Biosciences and Botanical Museum, University of Helsinki, Helsinki, Finland
10. Berlin, Germany
11. Conservatoire Botanique National du Massif Central, Chavaniac Lafayette, France
12. Lomonosov Moscow State University, Moscow, Russia
13. University of Zürich, Zürich, Switzerland
14. University of South Bohemia, České Budějovice, Czech Republic
15. CNRS UMR 6553, Université de Rennes 1, Paimpont, France
16. Institute of Biology Bucharest of Romanian Academy, Bucharest, Romania
17. Szent István University, Budapest, Hungary
18. Eszterházy College, Eger, Hungary
19. University of Perugia, Perugia, Italy
20. Botanical section, Civic Museum of Rovereto, Italy
21. Institut de Systématique, Évolution, Biodiversité, Muséum National d’Histoire Naturelle, Sorbonne Universités, Paris, France
22. Institute of Botany and Botanical Garden, University of Belgrade, Belgrade, Serbia
23. California Academy of Sciences (CAS), USA
24. Iranian Research Institute of Plant Protection, Agricultural Research Education and Extension Organization (AREEO), Tehran, Iran
25. State University of Paraíba, Campina Grande PB, Brazil
26. University of Wroclaw, Wrocław, Poland.