Abstract

• The plant Plumeria rubra L.(Tayok-saga-ani) belongs to the Family Apocynaceae. They were collected from North Dagon Township in Yangon Region during the flowering periods. Then the collected plants were studied of classified, identified and histological characters were examined by the literature.In histological study of leaves, paracytic type of stomata were present on both surface.Multicellular trichomes, lacticiferous canals and calcium oxalate crystals were also present. Various solvent extracts of leaves were tested against the various microorganisms for antimicrobial activity by using agar-well diffusion method. It was found that acetone extracts of leaves showed more significant antimicrobial activity than different solvent extracts. This paper had recorded for standardization of drugs.