1. School of Biological Sciences Washington State University Pullman Washington, DC 99164‐4236 USA
2. Departamento de Biología (Botánica), Facultad de Ciencias Biológicas Universidad Autónoma de Madrid c/Darwin 2 Madrid 28049 Spain
3. Centro de Investigación en Biodiversidad y Cambio Global (CIBC‐UAM) Universidad Autónoma de Madrid Madrid 28049 Spain
4. The Morton Arboretum 4100 Illinois Route 53 Lisle IL 60532 USA
5. Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Sevilla 41013 Spain
6. Department of Integrative Biology University of Colorado Denver Denver CO 80217‐3364 USA
7. Jungwon University Goesan Chungbuk South Korea
8. Departamento de Biología Vegetal y Ecología, Área de Botánica, Facultad de Biología Universidad de Sevilla Sevilla 41012 Spain
9. Department of Biological Sciences University of Manitoba Winnipeg Manitoba R3T 2N2 Canada
10. Allan Herbarium Manaaki‐Whenua Landcare Research PO Box 69040 Lincoln Canterbury 7640 New Zealand
11. Department of Systematic Botany Martin Luther University Halle‐Wittenberg Geobotany and Botanical Garden Halle (Saale) D‐06108 Germany
12. Johannes Gutenberg University of Mainz Mainz D‐55122 Germany
13. Plant Systematics and Evolution Laboratory, Department of Plant Biotechnology, Atta‐Ur‐Rahman School of Applied Biosciences (ASAB) National University of Sciences and Technology (NUST) Islamabad Pakistan
14. College of Life and Environment Sciences Hangzhou Normal University Hangzhou 311121 China
15. Department of Biology Sungshin Women's University Seoul 01133 South Korea
16. Royal Botanic Gardens, Kew Richmond Surrey TW9 3AE United Kingdom
17. Systematic and Evolutionary Botany Lab, Department of Biology Ghent University K.L. Ledeganckstraat 35 Gent 9000 Belgium
18. Département de Sciences Biologiques Institut de Recherche en Biologie Végétale de I'Université de Montréal 4101 Sherbrooke East Montréal Quebec H1X 2B2 Canada
19. College of Life Sciences Zhejiang University Hangzhou 310058 China
20. Department of Biosphere‐Geosphere Science, Faculty of Biosphere‐Geosphere Science Okayama University of Science Okayama 700‐0005 Japan
21. New York Botanical Garden Bronx NY 10458 USA
22. University of Michigan Herbarium Ann Arbor MI 48108 USA
23. Department of Ecosystem Science & Management Texas A&M University College Station TX 77843 USA
24. Department of Biology University of Ottawa, Gendron Hall Room 160, 30 Marie Curie Ottawa Ontario K1N 6N5 Canada
25. Departamento de Biología y Geología Universidad de Almería Ctra. Sacramento s/n Almería 04120 Spain
26. Plant Science Department McGill University Ste‐Anne‐de‐Bellevue Quebec H9X 3V9 Canada
27. National Herbarium New South Wales Sydney New South Wales Australia
28. Institute of Botany Chinese Academy of Sciences Beijing 100093 China