Hopea dryobalanoides Miq., Sum. (1860)
Latin for 'similar to Dryobalanops', referring to the similarity in leaf shape with species of the genus Dryobalanops.

Synonyms
Hancea dryobalanoides Pierre, Hopea borneensis Heim, Hopea micrantha (non Hook.f.) King, Hopea sarawakensis Heim

Description
Emergent tree up to 61 m tall and 111 cm dbh. Stem with resin. Stipules up to ca. 2 mm long. Leaves alternate, simple, penni-veined, secondary veins inconspicuous, placed close together. Flowers ca. 5 mm in diameter, white-yellow-pinkish, placed in short panicles. Fruits ca. 10 mm long, green-red, with two ca. 65 mm long wings, wind dispersed.

Ecology
In undisturbed mixed dipterocarp forests up to 600 m altitude. Mostly on hillsides and ridges, but also on alluvial sites. Usually on clay soils, but also growing on sand. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
Timber and resin are used.

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

Local names in Borneo
Berjankar, Luis, Mang besi, Mensega, Selangan, Selangan batu, Selangan penak.