Dysoxylum pachyrhache

Primary tabs

Dysoxylum pachyrhache

Description

Tree to 20 m with clear bole to 10 m, 40 cm diam., sometimes with short buttresses. Bark smooth with large corky lenticels, chocolate brown, to superficially fissured and finely cracking; inner bark bright orange, granular; sapwood pale brown; heartwood brown. Leaves to 1 m long in terminal spirals; 2–4- jugate with terminal spike or its scar, petiole 10–16 cm, terete to flattened adaxially, ± densely brown tomentose, weakly swollen at base, leaflets ± alternate, 12–25 by 7–12 cm, elliptic, ± coriaceous, glabrous except on midrib adaxially, softly pubescent abaxially, bases somewhat asymmetric, acute to rounded, costae 15–18 on each side, spreading, inarched but not looped at margin; petiolules 5–11 mm, drying dark brown, weakly swollen. Petals 4, 8–9 by 3 mm, densely pubescent without, creamish. Staminal tube glabrous, margin ± crenate; anthers 8, c. 1.5 mm long, narrowly oblong, inserted within the tube. Ovary 4-locular, densely adpressed pubescent; style adpressed pubescent at base; stylehead subcapitute c. 1 mm diam., with a basal annulus and impressions of stamens. Capsule solitary or in groups of 2 or 3, 5–8 cm long, c. 5–8 cm diam., subpyriform, glabrous when rife, orange-red, stipe 1–1.5 cm, pericarp pale along sutures, to 1.5 cm thick, ochreous, within. Seeds c. 2.5 cm long, orange-segment-shaped with creamy laticiferous (?) s.ircotesta.

Distribution

Asia-Tropical: Borneo present
Malesia: Borneo.

Citation

Kosterm. 1969 – In: Reinwardtia: 436.