1. Botanical Garden, Center for Biological Diversity Conservation, Polish Academy of Sciences, Warszawa, Poland
2. Institute of Biology, University of Opole, Opole, Poland
3. The Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków, Poland
4. Department of Taxonomy, Phytogeography and Palaeobotany, Institute of Botany, Jagiellonian University, Kraków, Poland
5. Research Laboratory ‘Herbarium’, National Research Tomsk State University, Tomsk, Russia