Aphanamixis borneensis (Miq.) Merr., J. Str. Br. Roy. As. Soc. 96 (1922)

Latin for 'from Borneo'.

Amoora borneensis Miq.
Aphanamixis pedicellata Ridl.
Aphanamixis pulgarensis Elmer
Ricinocarpodendron borneense (Miq.) Mabb.
Walsura punctata var. papillosa Suss & Heine

Understorey tree up to 13 m tall and 18 cm dbh. Stipules absent. Leaves alternate, compound, leaflets penni-veined, conspicuously looping, glabrous. Flowers ca. 3 mm diameter, creamish, placed in panicles. Fruits ca. 25 mm diameter, red, capsules. Seeds with vermilion aril.

Tree to 10(-13.5) m: bole to 18 cm diam. Bark reddish: inner bark orangeish-mottled, soft, with watery latex; sapwood orange. Leafy twigs 5-10 mm diam., greyish. Leaves 30-80 cm, (3-)6-8-jugate; petiole 15-18 cm, c. 5 mm diam., terete, puberulous, flattened to grooved or hollowed adaxially at base, the groove adpressed fulvous pubescent. Leaflets 7-25 by 4-7.5 cm, lanceolate to narrowly elliptic-oblong or oblanceolate, coriaceous and particularly at altitude, glabrous, bases acute to attenuate, weakly asymmetric, apices acute to cuspidate or acuminate, the acumen to 15 mm long, costae 9-12 on each side, conspicuously looped well clear of margin, often prominent abaxially, tertiary venation reticulate; petiolules 15-30 mm, the terminal one to 45 mm, swollen at base. Inflorescences to 65 cm, the male with subsquarrose branches to 15 cm, strongly supra-axillary; axes puberulous; bracteoles c. 0.5 mm, scale-like; pedicels 0-1 mm in female, 3-6 mm in male. Flowers c. 5-7 mm diam. Calyx lobes 4-5 mm diam., subrotund to erose, pubescent without, pinkish, margin glandular-ciliate. Petals c. 5-7 mm long, subrotund. glabrous, creamy-white or pinkish. Staininal tube with small pore; anthers 6, c. 3 mm long, narrowly oblong, glabrous. Capsules borne towards tip of axis, 3-4 cm diam., glabrous, pink to dark red, white within. Seeds 1-3, c. 18 by 12 mm, plano-convex, covered with vermilion aril; testa dark brown to black. [from Flora Malesiana]

Lowland and hill rain forest and heath forest, to 1800 m altitude.

Fruits are edible.

Borneo, Philippines, Moluccas.

Local names
Borneo: Ayam sabayan (Iban), Bahko brawo, Bunyou, Bunyou kolik, Kayu bunyo, Lantupak, Lapunian batu (Kenyah), Segera.