Miami University

Distinguished Professor of Biology, University of Florida

State Museum for Natural History Karlsruhe and Ilia State University Tbilisi

Professor University of Pretoria

Professor, Environmental Studies, University of Victoria

Professor of Botany, Ege University

Professor of Botany, University of Johannesburg

Brain Chemistry Labs

Department of Plant Sciences, Quaid-i- Azam University Islamabad

professor of University of Development Alternative