| 2005 |
Saint Petersburg, Russia |
Zoological Institute of the Russian Academy of Sciences |
| 2004 |
Christchurch, New Zealand |
University of Canterbury and Landcare Research |
| 2003 |
Oeiras, Portugal |
Instituto Gulbenkian de Ciência |
| 2002 |
Indaiatuba, Brazil |
Centro de Referência em Informação Ambiental (CRIA) |
| 2001 |
Sydney, Australia |
Royal Botanic Garden Sydney |
| 2000 |
Frankfurt am Main, Germany |
Senckenberg Museum |
| 1999 |
Cambridge, Massachusetts, USA |
Harvard University Herbaria |
| 1998 |
Reading, England |
Centre for Plant Diversity and Systematics, University of Reading |
| 1997 |
Taipei, Taiwan |
Academia Sinica and International Union of Biological Sciences (IUBS) (26th General Assembly) |
| 1996 |
Toronto, Canada |
Royal Ontario Museum |
| 1995 |
Madrid, Spain |
Real Jardín Botanico de Madrid and Consejo Superior de Investigaciones Científicas (CSIC) |
| 1994 |
Paris, France |
International Union of Biological Sciences (IUBS) (25th General Assembly) |
| 1993 |
Washington, D.C., USA |
Smithsonian Institution |
| 1992 |
Xalapa, Mexico |
Instituto de Ecología |
| 1991 |
Canberra, Australia |
Australian National Botanic Gardens |
| 1990 |
Delphi, Greece |
European Cultural Centre of Delphi |
| 1989 |
Las Palmas, Gran Canaria, Spain |
Jardín Botánico Canario “Viera y Clavijo” |
| 1988 |
St. Louis, USA |
Missouri Botanical Garden |
| 1987 |
Edinburgh, Scotland |
Royal Botanic Garden Edinburgh |
| 1986 |
Pittsburgh, Pennsylvania, USA |
Hunt Institute |
| 1985 |
Geneva, Switzerland |
Conservatoire et Jardin botaniques |