1. Botanic Institute of Barcelona (IBB, CSIC‐Ajuntament de Barcelona), Pg. del Migdia, s.n. 08038 Barcelona Spain
2. Departament of Biology (Botany), Faculty of Sciences Research Centre on Biodiversity and Global Change (CIBC‐UAM) 28049 Madrid Spain
3. Key Laboratory of Plant Resources Conservation and Sustainable Utilization, South China Botanical Garden Chinese Academy of Sciences Guangzhou 510650 China
4. Kochi Prefectural Makino Botanical Garden 4200‐6, Godaisan Kochi 781‐8125 Japan
5. Systematics and Evolution of Vascular Plants (UAB) – Associated Unit to CSIC, Departament de Biologia Animal, Biologia Vegetal i Ecologia, Facultat de Biociències Universitat Autònoma de Barcelona 08193 Bellaterra Spain
6. Department of Biological Sciences Sungkyunkwan University Suwon 440‐746 Republic of Korea
7. Key Laboratory for Bio‐Resources and Eco‐Environment, College of Life Sciences Sichuan University Chengdu China
8. Department of Biological Sciences, Center for Biodiversity University of Memphis Memphis Tennessee 38152 U.S.A.
9. Department of Biology, Science and Research Branch Islamic Azad University Tehran Iran
10. Botanical Museum, Finnish Museum of Natural History, P.O. Box 7, 00014 University of Helsinki, Finland; and Herbarium Komarov Botanical Institute of Russian Academy of Sciences Prof. Popov str. 2 197376 St. Petersburg Russia