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DescriptionTrees or shrubs. Stipules obtuse or aristate. Leaves opposite; lamina glabrous but usually with domatia. Inflorescences axillary along main stems. Flowers bisexual, 5-8-merous, appearing before the leaves or with the leaves; solitary or in clusters of 2-4 per leaf axil. Calyx limb reduced to a rim; tube campanulate to turbinate. Corolla white or sometimes pink; tube cylindric or slightly funnel-shaped; lobes spreading. Ovary 2-locular; ovules 1 per loculus. Style exserted with divergent arms. Seeds 2 per fruit; each deeply grooved on the inner face.