PNGTreesKey – Dysoxylum gaudichaudianum (Juss.) Miq.


Barry Conn (NSW) & Kipiro Damas (LAE).
Guide to trees of Papua New Guinea
Copyright held by the authors, National Herbarium of New South Wales, and Papua New Guinea National Herbarium

Dysoxylum gaudichaudianum (Juss.) Miq.

Annales Musei Botanici Lugduno-Batavi Vol. 4: 15

Other Literature: D.J. Mabberley & A.M. Sing, Flora Malesiana, Series 1 68-71 (1995)

Family: Meliaceae

Timber Group: Minor hardwood

Field Characters: Large canopy tree (up to 36 m high); Bole cylindrical (to slightly flutted, up to c. 80 cm diam.); straight; buttresses buttresses present (buttresses up to 2.5 m high_); spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark grey or brown (dark patches), slightly rough or smooth, slightly scaly or flaky; Subrhytidome (under-bark) dark green; less than 25 mm thick, 10.0-15.0; bark blaze consisting of one layer; strongly aromatic; unpleasant; outer blaze white or yellow (pale (cream-coloured), markings absent, smooth; inner blaze white or yellow (pale (cream-coloured), markings absent, smooth; bark exudate (sap) present, colourless, not readily flowing (spotty), colour not changing on exposure to air, not sticky; terminal buds not enclosed by leaves.

Indumentum: Complex hairs absent; stinging hairs absent; mature twig indumentum (hairs) absent.

Leaves: Leaves clustered at end of branches, spiral (leaves occurring singly at a node and arranged spirally up the branchlet), compound (a leaf made up from two or more leaflets); petiole present, not winged, attached to base of leaf blade, not swollen; leaves pinnate (unbranched with more than three leaflets); petiolule not swollen; rachis present, absent, absent; leaves without a terminal leaflet (the number of leaflets even - paripinnate), broadest at or near middle or broadest below middle, 10.0-15.0 (-30.0) cm, 4.0-5.0 (-10.0) cm, sub-leaflets opposite or leaflets alternate, asymmetric; venation pinnate, secondary veins open, prominent, intramarginal veins absent; leaves lower surface pale green, upper surface green, indumentum (hairs) absent or present (hairs minute), indumentum (hairs) sparse; absent; domatia absent; stipules absent.

Flowers: Inflorescence axillary, flowers on a branched axis, cones absent; flowers unisexual, unisexual with male and female flowers on the same plant, not stalked, flowers with one plane of symmetry, 14.0 mm long, diameter small (up to10 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth yellow; 10, all joined; stamens 10, present, joined, joined to the perianth; ovary superior, carpels joined (when more than one), locules 5; styles solitary, 1.

Fruits: Infrutescence arranged on unbranched axis, fruit 30.0 (c.) mm long, brown, not spiny, non-fleshy, simple, dehiscent, capsule; seeds 5-10, about 10 mm long, not winged, broad (as wide as long), seed 1-10 mm diam. (8-10 mm diam.).

Distribution: West Sepik, East Sepik, Madang, Morobe, Gulf, Central, Northern, Milne Bay, New Britain & Bougainville.

Dysoxylum gaudichaudianum
Botanical records
in PNGplants database

Map details