Author: Harms
Morphological description
Tree up to 32 m high and 47 cm in diameter, rarely buttressed to 1.2 m high, 80 cm wide, 3 cm thick. Growth flush-wise, flushes developing from large buds. Buds covered by 2-ranked, brown, caducous budscales with lengthwise veins; new leaves developing in bright white or pink tassels. Stipules present in the buds, very tender, caducous immediately after the unfolding of the bud, leaving hardly any scar.
Leaves paripinnate, 3-jugate; rachis 3-8 cm and petiole 0.5-1.7 cm, both puberulous or glabrous; petiolules 2-3 mm, puberulous, sometimes glabrous. Leaflets opposite, asymmetrically rhomboid, ovate, or elliptic, 3-10(-15.5) by 1-4.5(-7.2) cm; apex obtuse, emarginate, not or scarcely acuminate; base obliquely cuneate or obtuse; the lower rhomboid pair always with 2-4 lateral nerves in the broad basal half running parallel with the upper margin, reaching from the base up to near the apex; midrib 2-8(-14) mm from the upper margin; petiolules 2-3 mm (psilogyne Maniltoa TYPE detail ).
Inflorescences 3-7 cm long, 5-8 cm wide; rachis 1-3.5 cm, appressed hairy, glabrescent; bracts 1-2 cm, appressed hairy or glabrous; bracteoles 5.5-8 mm; pedicels 8-20 mm, densely hairy or glabrous (psilogyne Maniltoa TYPE detail ).
Flowers white. Hypanthium 1-2 mm deep. Sepals 7-10 mm long, usually glabrous. Petals oblanceolate, 6-12 mm long. Disk absent. Stamens c. 20; very shortly connate at base; filaments 7-12 mm, very shortly connate at base. Ovary usually with hairs on the swollen side, sometimes glabrous; stipe 1.5-3 mm; style 5-9 mm, rose-pink at the base.
Fruits compressed ovoid, 2.5-1.3 cm, glossy, brownish green, often rugose when young.
Distribution
Malesia: New Guinea, fairly common.
Habitat & Ecology
Forests, up to 400 m altitude. Flowering in February, March, and Augustus-December; fruiting in February, March, and Augustus.