Jean Lagarde BETTI1*, Serge Rostand MEBERE YEMEFA’A2 and Francis NCHEMBITARLA3
1Department of Botany, Faculty of Sciences, University of Douala, BP 24 157 Cameroon.
2Nature + Asbl Cameroun.
3Wildlife School of Garoua, BP 271 Garoua, Cameroun.
Email: [email protected]