1. State Key Laboratory of Systematic and Evolutionary Botany Institute of Botany Chinese Academy of Sciences Beijing 100093 China
2. Centro de Ciências do Mar Universidade do Algarve Gambelas Faro 8005‐319 Portugal
3. CSIRO National Research Collections Australian National Herbarium Canberra ACT 2601 Australia
4. Department of Botany National Museum of Natural History MRC166, Smithsonian Institution Washington DC 20013‐7012 USA