1. Plant Systematics and Ecology Laboratory Higher Teacher's Training College University of Yaoundé I Yaoundé Cameroon
2. Gembloux Agro‐Bio Tech TERRA Teaching and Research Centre, Forest is Life University of Liège Gembloux Belgium
3. Nature+ asbl / TERRA Forest is Life Gembloux Belgium
4. Department of Plant Biology University of Yaoundé I Yaoundé Cameroon
5. AMAP lab Univ Montpellier, IRD CNRS INRAE CIRAD Montpellier France