Baccaurea tetrandra (Baill.) Mull.Arg., in DC. Prodr. 15, 2 (1866)
Latin for 'with four male parts'.

Synonyms
Adenocrepis tetrandra Baill., Baccaurea brevipedicellata Pax & K.Hoffm., Baccaurea stipulata J.J.Sm., Baccaurea terminalifolia Elm.

Description
Understorey tree up to 12 m tall and 19 cm dbh. Stipules ca. 7 mm long. Leaves crowded at twig tips, alternate, simple, penni-veined, glabrous. Flowers ca. 1 mm diameter, white-yellow, placed in racemes. Fruits ca. 10 mm long, orange-red, indehiscent capsules, seeds with blue arils.

Ecology
In undisturbed mixed dipterocarp forests up to 500 m altitude. Mostly on alluvial sites with clay soils. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
The wood is locally used for poles. The fruits are edible.

Distribution
Borneo (Sarawak, Brunei, Sabah, West-, Central-, South- and East-Kalimantan), Philippines.

Local names in Borneo
Engkuni, Keramaian, Konkuning, Kunau, Kunau-kunau, Kuni, Mata kunau, Mata pelandok, Mata pelandu, Pundung undang, Sekunau.