1. M.V. Lomonosov Moscow State University, Biological Faculty, Department of Higher Plants, Leninskie Gory, Moscow, Russian Federation
2. Polish Academy of Sciences Botanical Garden – Center for Biological Diversity Conservation in Powsin, Prawdziwka, Warsaw, Poland
3. University of Novi Sad, Faculty of Sciences, Department of Biology and Ecology, Trg D. Obradovica, Novi Sad, Serbia
4. Royal Botanic Gardens, Kew, Richmond, Surrey, UK
5. School of Biological Sciences, University of Western Australia, Crawley, WA, Australia