Bouea oppositifolia (Roxb.) Meisn., Pl. Vasc. Gen. (1837)
(Latin for 'opposite leaves')

Synonyms
Bouea angustifolia Bl.; Bouea burmanica Griff.; Bouea burmanica var. kurzii Pierre; Bouea burmanica var. microphylla (Griff) Engl.; Bouea burmanica var. roxburghii Pierre; Bouea diversifolia Miq.; Bouea microphylla Griff.; Bouea myrsinoides Bl.; Mangifera oppositifolia Roxb.; Mangifera oppositifolia var. microphylla (Griff.) Merr.; Mangifera oppositifolia var. roxburghii (Pierre) Tard.; Matania laotica Gagnep.

Description
Upper-canopy tree up to 43 m tall and 89 cm dbh. Twigs glabrous. Stipules absent. Leaves opposite, simple, penni-veined. Flowers ca. 1.5 mm in diameter, yellow coloured, placed in panicles. Fruits ca. 25 mm long, orange-red, fleshy drupes.

Ecology
Undisturbed mixed dipterocarp forest, peat forest, kerangas, and sometimes on limestone. In secondary forest usually present as a pre-disturbance remnant. Found up to 500 m altitude.

Uses
Fruits are edible and are sometimes made into preserve when in a half ripe state. The durable, hard timber is used for various purposes.

Distribution
Southern China, Indochina, Myanmar, Thailand, Andaman Islands, Malay Peninsula, Sumatra, Java; Borneo (Sarawak, Brunei, Sabah, East-Kalimantan).

Local names in Borneo
Asam djanar; Bandjar; Kedjauw lepang; Kundang rumania; Ramania hutan; Ramania pipit; Rengas; Tampusu; Tolok burung; Umpas.