1. Department of Evolutionary Biology - Plant Biology; University of Florence; via La Pira, 4; I-50121; Florence; Italy
2. Department of Earth and Environmental Sciences; University of Pavia; via S. Epifanio, 14; I-27100; Pavia; Italy
3. Department of Botany and Zoology; Faculty of Science; Masaryk University; Kotlářká 2; CZ-61137; Brno; Czech Republic
4. Institute of Botany and Botanical Garden; Faculty of Biology; University of Belgrade; Takovska 43; 11000; Belgrade; Serbia
5. Millennium Seed Bank Partnership; Seed Conservation Department; Royal Botanic Gardens, Kew; Wakehurst Place; Ardingly; West Sussex; RH17 6TN; UK