Professor of Plant Systematic and Ecology, University of Yaounde I, Cameroo

Professor of Institute of Biological Sciences, University of Malaya

Department of Biology, Ecology, and Earth Science, University of Calabria

Institut Méditerranéen de Biodiversité et d'Ecologie marine et continentale (IMBE)

ANKARA UNIVERSITY

Erzincan Binali Yıldırım University

Emeritus Professor of Plant Systematic of the University of Isfahan

University of Lomé, Togo

Shahid Beheshti University

Department of Biology, North Tehran Branch,Islamic Azad University