1. Department of Pharmaceutical Sciences ‘A’ , Laboratory of Botany, Cryptogamy and Plant Biology, Faculty of Pharmacy of Monastir , Avenue Avicenna, Monastir-5000, Monastir University , Tunisia .
2. Department of Forestry, Laboratory of Forest Ecology , National Research Institute of Rural Engineering, Water and Forests, Ariana-2080, IRESA, Carthage University , Tunisia .