1. Institute of Botany, Jagiellonian University, Kopernika 27, 31-501 Kraków, Poland
2. Central Siberian Botanical Garden, Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russia
3. Laboratory of Systematics and Phylogeny of Plants, National Research Tomsk State University, Tomsk, Russia
4. Laboratory of Geobotany and Plant Conservation, Department of Biosystematics, Opole University, Oleska 48, 45-052, Opole, Poland
5. Department of Biology and Ecology, University of Ostrava, Chittussiho 10, Ostrava, Czech Republic
6. Altay Botanical Garden, filial of Institute of Botany and Phytointroduction, Ridder, Kazakhstan
7. Faculty of Science, Department of Biology, Hacettepe University, 06800, Beytepe, Ankara, Turkey
8. Institute of Silviculture and Forest Protection, Faculty of Forestry of the University of West Hungary, Sopron, Hungary
9. Department of Botany, Institute of Biology, National Research Tomsk State University, 36 Lenin Prospekt, Tomsk, 634050, Russia
10. Department of Plant Physiology, Biological Faculty, Lomonosov Moscow State University, 119234, Moscow, Russia
11. Department of Botany, Institute of Biology, Jan Kochanowski University, Świętokrzyska 15, 25406, Kielce, Poland
12. Department of Higher Plants, Biological Faculty, Lomonosov Moscow State University, 119234, Moscow, Russia
13. Botanic Garden of Meise, Nieuwelaan 38, B1860 Meise, Belgium
14. Ch, du Moulin 1, CH1996, Nendaz, Switzerland
15. Department of Biology, Faculty of Natural Sciences and Mathematics, University of Montenegro, Džordža Vašingtona bb, ME 81 000, Podgorica, Montenegro
16. Department of Biology, Biotechnical Faculty, University of Ljubljana,Večna pot 111, SI-1000, Ljubljana, Slovenia
17. 86a Rubina Street, Novorossiysk, 353900, Russia
18. Institute of Biology, ZRC SAZU, Novi trg 2, SI- 1001 Ljubljana, Slovenia
19. Krasnoyarsk State Pedagogical University n.a. V.P. Astafyev, Krasnoyarsk, Russia
20. Institute of ecology of the Volga river basin of the Russian Academy of Sciences, 10 Komzina Street, Togliatti, 445003, Russia
21. State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing, China
22. CH-3971 Ollon-Chermignon, Switzerland
23. Department of Botany, Rzeszów University, Zelwerowicza 4, 35601, Rzeszów, Poland