1. Staatliches Museum für Naturkunde Stuttgart, Rosenstein 1, Stuttgart 70191, Germany
2. Corso Vittorio Emanuele II 346, Pescara 65122, Italy
3. La Baraka, Gorse Hill Road, Virginia Water, Surrey GU25 4AP, UK
4. Rue Père de Deken 19, Bruxelles B1040, Belgium
5. Royal Holloway College, University of London, Egham, TW20 0EX, UK
6. Plantentuin Meise, Nieuwelaan 38, Meise B1860, Belgium