Hopea beccariana Burck, Ann. Jard. Bot. Btzg. 6 (1887)
Named after O. Beccari [1843-1920], an Italian botanist.

Synonyms
Balanocarpus ovalifolius Ridl., Hancea beccariana Pierre, Hopea intermedia King, Hopea nicholsonii Heim, Hopea pierrei (non Hance) Ridl.

Description
Upper canopy tree up to 46 m tall and 79 cm dbh. Stem with resin. Stipules up to ca. 2.5 mm long. Leaves alternate, simple, penni-veined, with inconspicuous secondary venation close together, domatia often present. Flowers ca. 4 mm in diameter, white-yellow, placed in small panicles. Fruits ca. 9 mm long, green-red, with two up to ca. 35 mm long wings, wind dispersed.

Ecology
In undisturbed mixed dipterocarp forests up to 1000 m altitude. Growing on hillsides and ridges with rocky to sandy-clayey soils. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
Timber is used.

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

Local names in Borneo
Bangkirai, Belang kemai, Chengai pasir, Garang buaya daun kecil, Nuas njarakat hitam, Selangan, Selangan besi, Selangan batu, Selangan hijau, Selangan penak, Temang besi.