ASSESSMENT OF POWDER MICROSCOPICAL STUDIES OF GREWIA TILIAEFOLIA VAHL LEAVES

Abstract

The aim of present investigation includes the collection, authentication of Grewia tiliaefolia Vahl leaves and assess powder microscopical features with the help of standard pharmacognostical procedures listed in Ayurvedic pharmacopoeias to establish identity and quality of the powdered form of leaf drug. Collected leaf samples were washed properly, shade dried and powdered in a mixer grinder. The powdered material was taken on microslide, stained with various colouring reagents and observe under microscope for various cellular arrangements. The leaf powder consists of abundant thick-walled fibres with tapering ends. Thick walled rectangular parenchyma cells are seen in leaf powder, these parenchyma cells have 2-4 cross walls. The lamina showing the venation pattern. The vein-islets are polygonal, narrow, thick straight boundaries. The characteristic epidermal trichomes and epidermal glandular trichomes are common in the powder, these are important diagnostic characters to identify the powder form of the drug. The guard cells in the stomata are narrow elliptical with stomatal aperture.