1. AMAP Lab Université MontpellierIRDCNRSINRAECIRAD Montpellier France
2. Herbarium et Bibliothèque de Botanique Africaine Université Libre de Bruxelles Brussels Belgium
3. Plant Systematics and Ecology Laboratory Higher Teachers’ Training CollegeUniversity of Yaoundé I Yaoundé Cameroon
4. International Institute of Tropical Agriculture Yaoundé Cameroon
5. National Forestry School Mbalmayo Mbalmayo Cameroon
6. Center for Tropical Research Institute of the Environment and Sustainability University of California Los Angeles CA USA