Palaquium quercifolium (PROSEA)

Plant Resources of South-East Asia Introduction

List of species

Palaquium quercifolium (de Vriese) Burck

Protologue: Ann. Jard. Bot. Buitenzorg 5: 41 (1886).

Synonyms

• Palaquium macrophyllum (de Vriese) Pierre ex Dubard (1909),
• Croixia quercifolia (de Vriese) Baehni (1965).

Vernacular names

• Indonesia: kerekit, nyatu tinggang (Kalimantan).

Distribution

Borneo (Kalimantan, Sabah, Brunei), Sulawesi and the Moluccas; possibly also in Sumatra.

Uses

The timber is used as nyatoh. The latex is sometimes made into gutta-percha of inferior quality.

Observations

• A large tree up to 40 m tall.
• Leaves evenly distributed, narrowly obovate or narrowly elliptical, with slender, transverse tertiary veins, brownish or reddish hairy beneath.
• Flowers in 4-8-flowered clusters, borne on 8-14 mm long pedicels (15-25 mm in fruit).
• Fruit globose, c. 2 cm in diameter, glabrous.

P. quercifolium is found particularly in primary forest in the lowland. The density of the timber is 460-610 kg/m³ at 15% moisture content.

Selected sources

36, 102, 461, 743.

Main genus page

• Palaquium (Timbers)

Authors

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