Castanopsis evansii Elmer, Leafl. Philip. Bot. 5 (1913)
Named after J.H. Evans, governor of Puerta Princesa on the island Sibuyan, Philippines.

Synonyms
Castanopsis elmeri Merr., Castanopsis woodii Merr.

Description
Mid-canopy tree up to 32 m tall and 52 cm dbh. Stipules ca. 6 mm long. Leaves alternate, simple, penni-veined, glabrous. Flowers ca. 3 mm diameter, green-yellow, placed in racemes. Fruits ca. 43 mm diameter, green-yellow, nut completely enclosed by cupule with long spines.

Ecology
In undisturbed mixed dipterocarp and coastal forests up to 200 m altitude. Usually on hillsides and ridges with sandy soils. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
The timber is used for construction and furniture.

Distribution
Borneo (Sarawak, Sabah, South- and East-Kalimantan), Philippines.

Local names in Borneo
Berangan, Berangan tambur, Buling, Katungging, Mempening, Pening-peningan.