Acknowledgements:
| We are grateful to the Directors/Curators of the following herbaria for herbarium and library facilities: BM, E, G, ISL, K, LINN, MHA, O, PPFI and RAW. We gratefully acknowledge financial support for this publication from the Andrew W. Mellon Foundation, obtained through the Missouri Botanical Garden, St. Louis, Missouri, U.S.A. We are grateful to Professor Peter H. Raven of the Missouri Botanical Garden, for his assistance in securing this support. Grateful thanks are due to Late Professor Zafar H. Zaidi, former Vice Chancellor, Professor Zafar Saied Saify, Vice-Chancellor, University of Karachi, Professor M. Ishaq Khan, former Chairman and Prof. S. M. Saifullah, Chairman, Department of Botany, University of Karachi for providing working facilities to the project and for their understanding and encouragement. The author is particularly grateful to Professor A. K. Skvortsov for kindly discussing various parts of the manuscript, identifying some of the taxa and for extending every possible help during his brief visit to the Herbarium, Main Botanical Garden, Moscow, Russia. Grateful thanks are also due to Dr. Dmitry Sokoloff, Moscow State University, Moscow without whose advice, encouragement and support the Moscow visit may not have been possible. |
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