Tree 7-20 m. Leaves membranous, elliptic to oblong, 9-18 by 3.5-6.5 cm, base attenuate, apex acute-acuminate; Inflorescences with ± dense hairs 0.2-0.6 mm; Fruits 2-5 per infructescence, ellipsoid, 2.4-3 by 1.4-2 cm, apex subacute to rounded, base rounded or shortly narrowed, glabrous, drying dark brown, finely tuberculate, without lenticels, pericarp 1.5-2 mm thick;
Asia-Tropical: Borneo present (Sabah present, Sarawak present)
Malesia: Borneo (Sarawak, Sabah).
2 Horsfieldia androphora keys out beside H. fragillima (also with non-articulated pedicels), but the latter species differs in many characters including general habit and fruit size; its saucer-shaped androecium is quite different. 1 Regarding the general morphology of the androecium, the present species belongs to the H. grandis group. It seems closest to H. tomentosa from S Thailand and Peninsular Malaysia, the two having a long-stalked synandrium in common. Horsfieldia tomentosa has generally larger flowers, a pubescent lower leaf surface, and smaller fruits which are pubescent or glabrescent. Horsfieldia androphora grows in mountains; H. tomentosa is restricted to lowlands.