Diospyros foxworthyi Bakh., Gard. Bull. S. S. 7 (1933)

Synonyms
Diospyros cylindrocarpa Kosterm.
Diospyros laevigata Bakh.

Diagnostics
Sub-canopy tree up to 28 m tall and 35 cm dbh. Stipules absent. Leaves alternate, simple, penni-veined, very conspicuous secondary venation, looping at margin, petiole and lower surface glabrous to hairy. Flowers ca. 3.5 mm in diameter, white, with corolla tube, placed in small bundles in leaf axils. Fruit ca. 35 mm long, green-brown, fleshy berry, ramiflorous.

Description
Tree to 28 m tall and 35 cm diameter. Leaves chartaceous to coriaceous, glabrous; oblong-elliptic, 10-35 x 3.5-12 cm, base cuneate to rounded, apex long-acuminate to caudate; midrib sunken above; lateral veins sunken or flush above, prominent below, (6-)10-15 pairs, mostly joining strongly at margin to form an intramarginal vein close to leaf margin; intercostal venation flush to prominulous above, prominent below, reticulate; petiole 0.8-1.5 cm long. Male inflorescences 1-4.5 cm long, slender, each bearing 3-15 flowers. Male flowers with calyx divided halfway into 4 valvate triangular lobes; corolla salverform, c. 0.6 cm long. Female inflorescences 1-3.5 cm long, each bearing 1-several flowers. Female flowers with calyx divided into 4 valvate triangular lobes of c. 0.5 x 0.6 cm. Fruits in clusters of 1-5, on stout 1-3.5 cm long stalks, velvety and globose when young, maturing glabrous, oblong, to 5 x 4.5 cm, symmetric, on drying tending to shrink into as many longitudinal furrows as there are seeds (maximum of 8 seeds). Fruit calyx slightly accrescent, forming a shallow woody 4-pointed plate of 1.5-3 cm diameter; lobes with erect tips and slightly dilated and reflexed sides. [from Tree Flora of Sabah and Sarawak]

Ecology
In undisturbed mixed dipterocarp forests and keranga forest up to 600 m altitude. Mostly on hillsides and ridges with rich clay to sandy soils.

Distribution
Peninsular Malaysia, Sumatra, Borneo.

Local names
Borneo: Kayu malam.