1. Royal Botanic Gardens, Kew, Richmond Surrey TW9 3AE UK
2. Systematic and Evolutionary Botany Lab, Department of Biology Ghent University K.L. Ledeganckstraat 35 9000 Ghent Belgium
3. Institut de recherche en biologie végétale (IRBV), Université de Montréal Montréal QC H1X 2B2 Canada
4. National Herbarium of New South Wales, Royal Botanic Gardens Mrs Macquaries Road, Sydney Sydney NSW 2000 Australia
5. Department of Biology University of Ottawa Ottawa ON K1N 6N5 Canada
6. Department of Biological Sciences University of Cape Town, Bolus Herbarium Private Bag X3, Rondebosch 7701 Cape Town South Africa
7. Universidad de Almería, Carretera Sacramento s/n La Cañada de San Urbano Almería 04120 Spain
8. Botanic Garden Meise Nieuwelaan 38 Meise 1860 Belgium
9. Botany, School of Environmental and Rural Science, University of New England Armidale NSW 2351 Australia
10. Departamento de Biologia Universidade Federal de Lavras Caixa Postal 3037 Lavras Minas Gerais CEP 37200‐000 Brazil
11. Department of Botany and Zoology, Faculty of Science Masaryk University Kotlarska 2 Brno 611 37 Czech Republic
12. Departamento de Biología Vegetal y Ecología Universidad de Sevilla Carretera Profesor García González s/n Seville 41012 Spain
13. Department of Animal and Plant Sciences Univeristy of Sheffield Alfred Denny Building, Western Bank Sheffield S10 2TN UK
14. The Morton Arboretum 4100 Illinois Route 53 Lisle IL 60532‐1293 USA
15. The Field Museum 1400S. Lake Shore Dr. Chicago IL 60605 USA
16. Departamento de Biología (Botánica) Facultad de Ciencias Biológicas, Universidad Autónoma de Madrid C/Darwin, 2 28049 Madrid Spain
17. Centro de Investigación en Biodiversidad y Cambio Global (CIBC‐UAM), Universidad Autónoma de Madrid 28049 Madrid Spain
18. Hortus Botanicus Leiden, Universiteit Leiden PO Box 9500 Leiden 2300 RA The Netherlands
19. Department of Molecular Biology and Biochemical Engineering, Botany area Universidad Pablo de Olavide Carretera de Utrera km 1 41013 Seville Spain
20. Centre for Plant Biotechnology and Genomics (CBGP, UPM‐INIA) Pozuelo de Alarcón Madrid 28223 Spain
21. School of Biological Sciences, Washington State University Pullman WA 99164‐4236 USA
22. Laboratory of Environmental Toxicology and Aquatic Ecology, Faculty of Bioscience Engineering, Ghent University 9000 Ghent Belgium
23. Department of Botany, School of Natural Sciences Trinity College Dublin Dublin 2 Ireland
24. Department of Ecology and Conservation Biology, Texas A&M University College Station TX 77843 USA
25. The New York Botanical Garden 2900 Southern Blvd Bronx NY 10458 USA