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

Latin for 'large or elongate fruits'.

Calophyllum horstii Boerl.
Calysaccion horstii Teijsm. & Binn.

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.

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.

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

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

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