Small tree or shrub, hemi-epiphytic or climbing. internal hairs absent. Leaves spirally arranged; stipules 0.5-1 cm long, (very) minutely white puberulous or glabrous, caducous. Ovary partly red.
Asia-Tropical:, Malaya (Peninsular Malaysia ‒ present); Sumatera (Sumatera ‒ present)
Malesia: Sumatra, Malay Peninsula.
The structure of the ostiole with seemingly more than three ostiolar bracts around the opening is unusual.