Poonam Sethi*
Sargassum wightii a marine brown seaweed found along the coastal areas of Rameswaram, Tamil Nadu, India and studied for its anatomical and phytochemical properties to check the authencity of the plant. Morphological characters of the thallus-axis has been studied to aid pharmacognostic and taxonomic species identification using photographs; parameters presented in this paper may be proposed to establish the authenticity of this plant and can possibly help differentiate the alga from its other species. The study revealed several interesting characters like air bladder and the axis is differentiated into meristoderm, cortex and medulla rich in chromatophores. Phytochemically rich in phenols, tanins and flavanoids.
