Dysoxylum alatum

Primary tabs

Dysoxylum alatum

Description

Tree to 10 m (30 m, Harms); bole to 28 cm diam., but often flowering as a small treelet. Bark smooth to finely cracked, creamish to brown; inner bark creamy yellow to pink with orange-brown streaks; Leaves 35–70 cm, imparipinnate, 5–8-jugate, apical leaflets developing tardily; petiole 7–10 cm, 2–4 mm diam., terete to flattened adaxially, swollen at base, lenticellate, glabrous to sparsely pubescent; rachis winged, wings forming ± right-angled triangles, with the right angle proximal to a pair of leaflets and the long side concurrent with rachis to next pair, the short side to 8 mm; apical leaflet 18–24 by 6–9 cm, obovate, apex gradually acuminate, acumen to 1 cm, base acute to cuneate. Inflorescences of coffee-scented (Mabberley) flowers borne on trunk and branches, very short. Petals 13–14 mm long, linear-lanceolate, acute, thickened at apices, sericeous abaxially, apparently free from tube, white. Staminal tube white, with 10(?) emarginate appendages; anthers 10 inserted between bases of appendages. Ovary 5-angled, ovoid, hairy, each locule with 2 superposed ovules; style hairy in proximal half. Fruits apparently solitary, pedicellate, to 3 cm diam., dark brown velutinous. Seeds 3 or 4 (?5), plano-convex, ?arillate.

Distribution

Asia-Tropical, Irian Jaya: Fakfak; Papua New Guinea: E Sepik & Madang Provinces present
MalesiaNew Guinea (Irian Jaya: Fakfak; Papua New Guinea: E Sepik & Madang Provinces)

Notes

The description of the flowers is largely taken from Harms (l.c.).

Citation

Kosterm. 1969 – In: Reinwardtia: 435.