Calophyllum macrocarpum Hook.f., Fl. Brit. Ind. 1 (1874)

Synonyms
Calophyllum horstii Boerl.
Calysaccion horstii Teijsm. & Binn.

Description
Emergent tree up to 59 m tall and 109 cm dbh. Stem with white to yellow latex. Leaves opposite, simple, penni-veined, secondary veins placed close together, glabrous. Flowers ca. 25 mm diameter, white. Fruits ca. 71 mm long, green, fleshy drupe.

Ecology
In undisturbed mixed dipterocarp and keranga forests up to 600 m altitude. Usually on alluvial sites and along rivers with sandy to clay soils. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
The wood is used for construction purposes. The fruit is edible.

Distribution
Thailand, Peninsular Malaysia, Sumatra, Borneo (Sarawak, Brunei, Sabah, West-, Central- and East-Kalimantan).

Local names
Borneo: Bintangor, Bunut, Buru, Danko.