Pellacalyx symphiodiscusPellacalyx symphiodiscus is a tree in the family Rhizophoraceae. The specific epithet symphiodiscus means 'fused disc', referring to the of the flower.DescriptionPellacalyx symphiodiscus grows up to tall, with a trunk diameter of. The smooth bark is brown. The leaves are oblong to obovate and measure up to long.Distribution and habitatPellacalyx symphiodiscus is endemic to Borneo. Its habitat is dipterocarp forests, to elevations of about.