Journal of Chemical and Pharmaceutical Research (ISSN : 0975-7384)

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Original Articles: 2010 Vol: 2 Issue: 4

Comparative Foliar Epidermal Studies in Cymbopogon citratus and Cymbopogon schoenanthus In Sudan


Detailed microscopical studies of the leaf epidermis of Cymbopogon citratus and Cymbopogon schoenanthus which are Sudanese folkloric medicines were carried out. It had been found that there are large numbers of hairs of different types: simple, unicellular, glandular and nonglandular hairs scattered in the adaxial and the abaxial surfaces of the leaf. The epidermal cells in surface views are elongated and they are interrupted by stomata of Graminae Cypraceae type with dum-bell shaped guard cells. The cell walls of the epidermal cells of C. citratus are straight where as the cell walls of C. scheonanthus epidermal cells are wavy. Scanning electron microscopy showed that the surfaces of the two species contain large quantities of wax, with larger quantities of wax in C. citratus compared to S. scheonanathus. They are covered with silica depositions and they are longer on C. citratus. The stomata are elongated with raised rim and very long narrow apertures.