Mallotus leucodermis Hook.f., Fl. Brit. Ind. 5 (1887)
Latin for 'white skin', referring to the bark.

Synonyms
Coccoceras muticum var. pedicellatum Hook.f., Mallotus leucodermis var. leucodermis Airy Shaw

Description
Mid-canopy tree up to 39 m tall and 93 cm dbh. Stipules ca. 2 mm long, dropped early. Leaves alternate, simple, tripli-veined, glabrous, often with nectary glands near upper leaf base. Flowers ca. 4 mm diameter, yellowish, placed in racemes. Fruits ca. 20 mm diameter, green, 3-lobed, dehiscent capsules on very long stalks.

Ecology
In undisturbed mixed dipterocarp forests up to 500 m altitude. Usually on alluvial sites and along rivers. Also found on limestone. In secondary forests usually present as a pre-disturbance remnant tree.

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

Local names in Borneo
Galungan, Galunggung, Perupuk, Perupuk batu.