Tree 10-20 m. Leaves membranous, (oblong-)lanceolate, 8-23 by 2.5-7.5 cm, base attenuate, apex acute-acuminate; Inflorescences with sparse or dense hairs 0.1-0.3 mm; Fruits 2-10 per infructescence, ellipsoid to nearly globose, l.l-1.6(-2) by 1-1.3 cm, glabrous, finely granulate, not or hardly tuberculate;
Ambon present, Asia-Tropical: Malaya (Singapore present); Maluku (Maluku present); Sulawesi (Sulawesi present), Garden's Jungle of the Botanic Garden present, Kabaena I present, Seram present
Malesia: Sulawesi (including Kabaena I.), Moluccas (Seram, Ambon), Singapore (running wild in the Garden's Jungle of the Botanic Garden).
2 Horsfieldia parviflora is easily distinguishable by the smooth, rather inflated male buds, ± obtriangular to transversely ellipsoid in lateral view, not collapsing on drying, usually of a bluish or reddish brown tinge. 1 Elbert 3457 (Kabaena I., limestone; S Sulawesi) has rather large fruits, 1.6 cm long, with a distinct pseudostalk 1.5-2 mm long; fruit of Darnaedi 2287 (S Central Sulawesi) is 2 cm long.