Durio oxleyanus Griff., Calc. J. Nat. Hist. 5 (1845)

Synonyms
Durio gratissimus Becc.
Neesia griffithii Planch. ex Mast.

Description
Upper canopy tree up to 50 m tall and 90 cm dbh. Stipules present but soon falling. Leaves alternate, simple, penni-veined, lower surface whitish, with hairs instead of scales. Flowers ca. 15 mm diameter, white-yellow, 2-3-lobed epicalyx, placed in cymes on the twigs behind the leaves. Fruits ca. 140 mm long, green, capsule with long spines, seeds completely enclosed by pale yellow, sweet, edible aril.

Ecology
In mixed dipterocarp forests up to 500 m altitude. Usually on hillsides and ridges with sandy soils. In secondary forests usually present as a pre-disturbance remnant tree, sometimes cultivated for the fruits.

Uses
Fruits are eaten and locally sold on markets (my personal favorite durian species). The timber is used for planks. The bark and seeds are used for medicinal purposes.

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

Local names
Borneo: Dian, Durian, Lai, Lai bengang, Kartungan, Kerantongan, Kerantungan, Ketungan, Kutongan, Sukang.