and appearance) and exogenous factors (soil (substrates), cultural practices, light and temperature [10] . The combined action of these factors allows to patrol some stresses in order to carry out the vegetative multiplication. In Côte d'Ivoire, investigations on medicinal plants are mainly focused on floristic diversity [11] , ethnobotany and phytochemical potential [12] [13] [14] [15] , biological and ethnopharmacological activity [16, 17] and biofungicide effects [18] . However, studies on the regen-