1. Global Crop Diversity Trust; Platz der Vereinten Nationen 7 53113 Bonn Germany
2. Univ. of British Columbia; Dep. of Botany; 6270 University Blvd. Vancouver BC Canada
3. Univ. of Hawaii at Manoa; Dep. of Tropical Plant & Soil Sciences; 3190 Maile Way Honolulu Hawaii 96822
4. Univ. of Waterloo; Dep. of Environment and Resource Studies; 200 University Ave. W. Waterloo ON N2L 3G1 Canada