1. Plant Systematics and Biodiversity Laboratory; Molecular Phylogeny and Genetics Unit; Conservatoire et Jardin botaniques de la Ville de Genève; CH-1292 Chambésy Geneva Switzerland
2. Department of Biology and Botanic Garden; University of Fribourg; CH-1700 Fribourg Switzerland
3. Natural History Museum; CH-1700 Fribourg Switzerland
4. Conservation Biogeography Group; Department of Geosciences; University of Fribourg; CH-1700 Fribourg Switzerland
5. Institute of Botany; Azerbaijan National Academy of Sciences; AZ-1073 Baku Azerbaijan
6. National Research Council (CNR); Institute of Biosciences and Bioresources; I-90129 Palermo Italy
7. Department of Biology; University of Crete; GR-71409 Heraklion Crete Greece
8. Botanical Garden; University of Crete; GR-74100 Rethymnon Crete Greece
9. Plant Systematics and Biodiversity Laboratory; University of Geneva; CH-1292 Chambésy Geneva Switzerland