1. Herbarium Mediterraneum; c/o Orto Botanico, Via Lincoln 2/A I-90123 Palermo Italy
2. Botanischer Garten & Botanisches Museum Berlin-Dahlem; Free University of Berlin; Königin-Luise-Str. 6-8 D-14195 Berlin Germany
3. 6162 Biomedical & Physical Sciences Bldg.; Michigan State University; East Lansing, Michigan 48824-4320 U.S.A.
4. Departamento de Biología Vegetal II; Facultad de Farmacia; Universidad Complutense de Madrid; Plaza Ramón y Cajal Madrid 28040 Spain
5. Department of Botany; Natural History Museum; Cromwell Road London SW7 5BD U.K.
6. CAB International; Bakeham Lane, Egham, Surrey TW20 9TY U.K.
7. Royal Botanic Garden; 20A Inverleith Row, Edinburgh EH3 5LR Scotland U.K.
8. International Commission on Zoological Nomenclature; Natural History Museum; London SW7 5BD U.K.
9. Biodiversity Informatics; Marine Biological Laboratory; Woods Hole Massachusetts 02543 U.S.A.
10. Department of Natural Sciences; Bishop Museum, 1525 Bernice St. Honolulu, Hawaii 96817 U.S.A.
11. Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH; Mascheroder Weg 1b D-38124 Braunschweig Germany