Baccaurea motleyana (Mull.Arg.) Mull.Arg., in DC. Prodr. 15, 2 (1866)
Named after J. Motley [?-1859], an British engineer who collected plants in Southeast Borneo.

Synonyms
Baccaurea pubescens Pax & K.Hoffm., Pierardia motleyana Mull.Arg.

Description
Sub-canopy tree up to 26 m tall and 61 cm dbh. Stipules ca. 8 mm long. Leaves crowded at twig tips, alternate, simple, penni-veined, hairy below, slightly cordate leaf base. Flowers ca. 2 mm in diameter, yellowish, placed in long racemes. Fruits ca. 24 mm long, yellow-pink, cauliflorous, indehiscent capsules, seeds with transparent aril.

Ecology
In disturbed sites in mixed dipterocarp forest or open scrub-vegetation up to 200 m altitude. Mostly on alluvial sites, but also on hillsides. On sandy to clay soils.

Uses
Sap from the stem is used as a medicine against sore-eyes. The fruits are edible. Trees are often cultivated in forest gardens or within villages.

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

Local names in Borneo
Bua trai, Pekang, Rambai, Ramei, Ulup lavae.