Snehalatha VR and Rasmi AR

This research provides a detailed pharmacognostic investigation of three Syzygium species, S. laetum, S. occidentale, and S. palghatense emphasizing organoleptic characteristics, powder microscopy, and fluorescence analysis. Shade-dried leaf and bark powders were systematically examined to detect distinguishing features useful for species identification and quality assurance. Organoleptic evaluation identified clear differences in texture, colour, odour, taste, and powdering behaviour across the species. Microscopic studies revealed species-specific anatomical attributes, including variations in stomatal types, crystal deposits, stone cells, and sclereids. Fluorescence analysis under visible and ultraviolet light offered additional chemotaxonomic distinctions, reflecting differences in phytochemical composition. Collectively, the findings establish dependable diagnostic parameters for authenticating raw herbal materials, ensuring quality standardization, and facilitating their traditional and pharmaceutical utilization. This study strengthens the pharmacognostic database and highlights the significance of integrating morphological and chemical analyses in herbal drug validation.

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