Trees. Leaves spiral, penninerved. Flowers bisexual, in short racemes. Petals 4 or 5, hypogynous, narrow, coherent by their edges until full anthesis, brush-like woolly inside. Stamens 8 or 10, adnate to the lower half of each petal in pairs, the uppermost part of the filaments remaining free as are the linear-elongate anthers. Ovary superior, imperfectly 3-4-celled, with 1 (uni- or bitegmic?) ovule pendent from the top of the almost free placenta into each cell; Seed 1;
Asia-Tropical: Borneo present; Malaya (Peninsular Malaysia present); Sumatera (Sumatera present), Lingga Is present, Peninsular Thailand present
Monotypic. Peninsular Thailand; in Malesia: Sumatra, Lingga Is., Malay Peninsula, and Borneo. .