plant taxonomist, Natural History Museum, London

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

Professor of Botany, University of British Columbia

UEFS, Depto. Ciências Biológicas

Director, Botanical Survey of India

Full Professor in Systematic Botany, PLANTSEED Lab, University of Pisa

Investigador

Department of Plant Sciences Quaid-i-Azam University Islamabad

Professor of Cytogenetics and Plant taxonomy

Professor of Botany