| Author |
| Benito Valdés (Sevilla) |
| Technical Assistance |
| David Melero (Sevilla) |
| Bibliographic and Nomenclatural Advice |
|
Werner Greuter (Berlin) Walter Gutermann (Vienna) John NcNeill (Edinburgh) Dimitar Peev (Sofia) Nicholas Turland (St. Louis) Josep Vigo (Barcelona) |