Melanochyla caesia (Bl.) Ding Hou, Blumea 24 (1978)
(Latin for 'bluish')

Synonyms
Melanochyla maingayi Hook.f.; Melanochyla tomentosa (non Hook.f.) K. & V.; Melanochyla tomentosa var. glabrescens K. & V.; Semecarpus caesia Bl.; Semecarpus heterophylla var. caesia Engl.

Description
Mid-canopy tree up to 37 m tall and 48 cm dbh. Stipules absent to present? Leaves alternate, simple, penni-veined. Flowers ca. 6 mm in diameter, white-yellowish, placed in panicles. Fruits ca. 26 mm long, green-brownish, densely hairy, fleshy drupe.

Ecology
Undisturbed forests up to 1200 m altitude, but usually below 600 m. Often on hillsides and ridges. In secondary forests usually present as pre-disturbance remnants.

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

Local names in Borneo
Rengas; Rengas hitam.