1. Natural History Museum Cromwell Road London SW7 5BD United Kingdom
2. Department of Biodiversity and Conservation, Real Jardín Botánico (RJB), CSIC C/ Claudio Moyano 1 28014 Madrid Spain
3. Australian National Herbarium, Centre for Australian National Biodiversity Research (a joint venture between Parks Australia and CSIRO) GPO Box 1700, Canberra ACT 2601 Australia
4. Instituto de Pesquisas Ambientais (IPA) Av. Miguel Estéfano, 3687, CEP 04301‐012, São Paulo SP Brazil
5. Botanischer Garten und Botanisches Museum Berlin‐Dahlem, Freie Universität Berlin Königin‐Luise‐Straße 6–8 14195 Berlin Germany
6. Department of Botany NMNH ‐ MRC 166, Smithsonian Institution P.O. Box 37012 Washington D.C 20013‐7012 U.S.A.