Durio dulcis Becc., Malesia 3 (1889)

Synonyms
Durio conicus Becc.

Description
Upper canopy tree up to 49 m tall and 85 cm dbh. Stipules present, but falling off early. Leaves alternate, simple, penni-veined, silvery-golden below, very similar to those of Durio acutifolius, but veins looping more clearly and more conspicuous scales on lower surface. Flowers ca. 33 mm in diameter, white-reddish, with 2-lobed epicalyx, placed in small clusters on the twigs behind the leaves. Fruits ca. 160 mm in diameter, reddish, capsule with long spines, seeds surrounded by dark yellow-reddish, edible aril.

Ecology
In undisturbed mixed dipterocarp forests (rarely peat swamp) up to 300 m altitude. Usually on hillsides and ridges with sandy soils, sometimes on limestone. In secondary forests usually present as a pre-disturbance remnant tree, or planted for the fruits.

Uses
One of the main sources of durian timber. Fruits are eaten.

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

Local names
Borneo: Dianjau, Durian bala, Durian burong, Durian tinggang, Duyen, Lahong, Lahung, Lajung, Lalit manuk, Pesasang.