1. Program in Ecology, Evolution and Conservation Biology, University of Illinois, 505 S. Goodwin Avenue, Urbana, IL 61801, USA
2. Department of Plant Biology, University of Illinois, 505 S. Goodwin Avenue, Urbana, IL 61801, USA
3. Smithsonian Tropical Research Institute, Apartado 0843-03092, Balboa, Ancon, Republic of Panama
4. Department of Biological Sciences, Louisiana State University, 202 Life Sciences Building, Baton Rouge, LA 70803, USA
5. Department of Natural Resources, Cornell University, 16 Fernow Hall, Ithaca, NY 14853, USA
6. Indian Institute of Science Education and Research, PO BCKV Campus Main Office, Nadia, Mohanpur 741252, West Bengal, India
7. Laboratorio de Ecología de Plantas y Herbario QCA, Escuela de Ciencias Biológicas, Pontificia Universidad Católica del Ecuador, Apartado 17-01-2184, Quito, Ecuador
8. National Parks, Wildlife, and Plant Conservation Department, Chatuchak, Bangkok 10900, Thailand
9. Faculty of Science and Technology, Thammasat University (Rangsit), Klongluang, Patumtani 12121, Thailand
10. Faculty of Plantation and Agrotechnology, University Technology MARA, Shah Alam 40450, Selangor, Malaysia
11. Forest Environment Division, Forest Research Institute Malaysia, 52109 Kepong, Selangor Darul Ehsan, Malaysia
12. Center for Tropical Forest Science, Arnold Arboretum Asia Program, Harvard University, Cambridge, MA, USA
13. Department of Ecology and Evolutionary Biology, University of California, Los Angeles, CA 90095, USA
14. Department of Plant and Animal Sciences, University of Buea, PO Box 63, Buea, Republic of Cameroon
15. Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR 97331-2902, USA