1. Área de Botánica, Department of Molecular Biology and Biochemical Engineering Universidad Pablo de Olavide Ctra de Utrera km 1 sn Seville 41013 Spain
2. School of Biological Sciences Washington State University Pullman WA 99164 USA
3. Department of Biology (Botany) Universidad Autónoma de Madrid Campus Cantoblanco Madrid 28049 Spain
4. Centro de Investigación en Biodiversidad y Cambio Global (CIBC‐UAM) Universidad Autónoma de Madrid Madrid 28049 Spain
5. Real Jardín Botánico, CSIC Plaza de Murillo 2 Madrid 28014 Spain
6. Department of Plant Biology and Ecology University of Seville Reina Mercedes sn Seville ES-41012 Spain
7. The Morton Arboretum 4100 Illinois Route 53 Lisle IL 60532 USA
8. Department of Ecosystem Science and Management Texas A&M University 495 Horticulture Rd Suite 305 College Station TX 77843 USA
9. The Field Museum 1400 S Lake Shore Dr Chicago IL 60605 USA
10. Department of Integrative Biology University of Colorado Denver Denver CO 80217‐3364 USA
11. Universität Bielefeld, Department of Computational Biology & Center for Biotechnology ‐ CeBiTec Universitaetsstrasse 27 Bielefeld 33615 Germany
12. Department of Biological Sciences University of Manitoba Winnipeg Manitoba R3T 2N2 Canada
13. Allan Herbarium Manaaki‐Whenua Landcare Research PO Box 69040, Lincoln 7640 Canterbury New Zealand
14. Current address: The University of British Columbia Forest Sciences Centre 2424 Main Mall Vancouver BC V6T 1Z4 Canada
15. Department of Systematic Botany, Martin Luther University Halle-Wittenberg Geobotany and Botanical Garden Neuwerk 21, Halle 06108 (Saale) Germany
16. Martin Luther University Halle‐Wittenbergm, Geobotany and Botanical Garden Botanical Garden Am Kirchtor 3, Halle 06108 (Saale) Germany
17. College of Life and Environment Sciences Hangzhou Normal University Hangzhou 311121 Zhejiang China
18. Royal Botanic Gardens, Kew Richmond Surrey TW9 3AE United Kingdom
19. Department of Biology Ghent University Systematic and Evolutionary Botany Lab, K.L. Ledeganckstraat 35 Gent 9000 Belgium
20. Institute of Systematic and Evolutionary Botany University of Zürich Zollikerstrasse 117 Zürich 8008 Switzerland
21. New York Botanical Garden 2900 Southern Blvd. Bronx NY 10458 USA
22. University of Michigan Herbarium 3600 Varsity Drive Ann Arbor MI 48108‐2228 USA
23. Department of Biology University of Ottawa Gendron Hall, Room 160, 30 Marie Curie Ottawa Ontario K1N 6N5 Canada