Palaquium rioense (PROSEA)

Plant Resources of South-East Asia Introduction

List of species

Palaquium rioense H.J. Lam

Protologue: Bull. Jard. Bot. Buitenzorg, sér. 3, 7: 89 (1925).

Vernacular names

• Malaysia: getah keras, ketipei pan (Sabah).

Distribution

Borneo (Sabah, East Kalimantan).

Uses

The timber is used as nyatoh.

Observations

• A large tree up to 50 m tall.
• Leaves evenly distributed, obovate, ovate or elliptical, with transverse tertiary veins, appressed-hairy beneath.
• Flowers in 2-4-flowered clusters, borne on (3-)6-16 mm long pedicels (in fruit up to 20 mm), greenish or brownish.
• Fruit obovoid, c. 1.5 cm long, glabrous, dark green.

P. rioense is most commonly found in primary montane forest at 1200-2000 m altitude. The density of the timber is c. 650 kg/m³ at 15% moisture content.

Selected sources

100, 743.

Main genus page

• Palaquium (Timbers)

Authors

• R.H.M.J. Lemmens (selection of species)