Pottsia Hook. & Arn.

Climber. Leaves opposite; those of a pair equal; no glands in the axils. Inflorescence a large, many-flowered, terminal panicle; flowers 5-merous. Sepals with a row of colleters inside. Corolla lobes dextrorse; mature flower salverform; tube cylindrical, lobes narrowly ovate. Stamens inserted at corolla mouth, completely exserted from tube, adnate at the attachment of the filament to the anthers and by the thecae to the style head; anthers fertile in the upper half only, the lower half sterile, laterally with lignified guide rails and sagittate appendages at the base. Disk of 5 narrow lobes, connate at the base, or of a dentate ring. Gynoecium 2-carpellate, apocarpous but apically united into a common style; ovules numerous; style inflated in centre (in Malesia). Fruit of paired narrow follicles; often spiral; glabrous. Seeds narrow elliptic; with an apical coma.