Dr. Simon G. Potts, University of Reading, United Kingdom
Dr. Francesca Lanata, National Botanical Garden of Belgium and Botanical Garden of Kisantu, Democratic Republic of Congo
Dr. José Justin Mbimbi & Pr. Julien Punga, University of Kinshasa, Democratic Republic of Congo
Pr. Ferdinand Kombele Menea, IFA Yangambi, Democratic Republic of Congo
Dr. Michel-Pierre Faucon, Institut LaSalle, Beauvais, France
Prof. Pierre Meerts, Free University of Brussels/Université Libre de Bruxelles, Belgium
Prof. Grégory Mahy, Gembloux Agro-Biotech, Université de Liège, Belgium
Mr. Alain Pauly, Research Associate of the Belgian Royal Institute for Natural Sciences (IRScNB), Belgium
Mr. Paul Latham, Blairgowrie, United Kingdom