1. Institute of Agricultural Biology and Biotechnology, National Research Council, Milano 20133, Italy.
2. Australian Centre for Pacific Islands Research, University of Sunshine Coast, Sippy Downs, Queensland 4558, Australia.
3. Herbarium, Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AE, UK.
4. Wadham College, University of Oxford, Oxford OX1 3PN, UK.
5. PO Box 52832, 98716 Pirae, Tahiti, French Polynesia.