Shorea guiso (Blanco) Bl., Mus. Botl Lugd. Bat. 2 (1852)
Named after a Philippine local name for this species (Giso).

Synonyms
Anisoptera guiso DC, Dipterocarpus guiso Blanco, Euphoria malaanonan Blanco, Isoptera burckii Boerl., Mocanera guiso Blanco, Shorea longipetala Foxw., Shorea obtusa var. kohchangensis Heim, Shorea pierrei Hance, Shorea robusta var. schmidtii Heim, Shorea vidaliana Brandis, Shorea vulgaris Pierre ex Lanessan

Description
Emergent tree up to 73 m tall and 112 cm dbh. Stem with resin. Stipules up to ca. 7 mm long. Leaves alternate, simple, penni-veined, glabrous, secondary veins close together. Flowers ca. 10 mm in diameter, yellow-red, placed in panicles. Fruits ca. 8 mm long, green-red, with three ca. 55 mm long wings, wind dispersed.

Ecology
In undisturbed forests up to 400 m altitude. Usually on ridges with sandy soils, quite often on limestone as well. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
The timber is used.

Distribution
Indo-China, Thailand, Peninsular Malaysia, Sumatra, Borneo (Sarawak, Sabah, West-, Central-, South- and East-Kalimantan), Philippines.

Local names in Borneo
Ambam, Damar kenuar batu, Hibi, Keping burung, Lauan, Lempong, Majau, Membatu, Menkabang, Oba suluk, Pakulin batu, Pelapak, Raru, Selangan batu, Selangan batu merah.