PNGTreesKey – Dubouzetia kairoi Coode


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

Dubouzetia kairoi Coode

Brunonia Vol. 1: 157 (1978)

Other Literature: M.J.E. Coode, Handbooks of the Flora of Papua New Guinea 53 (1981)

Family: Elaeocarpaceae

Timber Group: Non-timber species

Field Characters: Large canopy tree (up to 45 m high) or Small sub-canopy tree; Bole cylindrical (up to c. 90 cm diam.); straight (bole up to c. 20 m long); buttresses buttresses present; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark cream-coloured, grey, or brown, rough or smooth, scaly or flaky or fissured (scattered longitudinally); Subrhytidome (under-bark) yellow (dark straw-coloured) or green; less than 25 mm thick (papery & thin); bark blaze consisting of one layer; faintly to non-aromatic; outer blaze white (straw-coloured) or pale brown, markings absent; inner blaze white (straw-coloured) or pale brown, markings absent; bark exudate (sap) absent; terminal buds not enclosed by leaves.

Indumentum: Complex hairs absent; stinging hairs absent; mature twig indumentum (hairs) present, hairs dense to sparse.

Leaves: Leaves spaced along branches, spiral (leaves occurring singly at a node and arranged spirally up the branchlet), simple (a leaf composed of a single blade); petiole present, not winged, attached to base of leaf blade, not swollen; leaves broadest above middle to broadest at or near middle, 8.0-11.0 cm, 6.0-8.0 cm; symmetric, serrate to dentate (toothed) (widely spaced obscure teeth), not dissected or lobed, obtuse to acute, venation pinnate, secondary veins open, prominent, intramarginal veins absent; leaves lower surface pale green, upper surface green, indumentum (hairs) present (on lower surface), indumentum (hairs) dense; absent; domatia absent; stipules absent.

Flowers: Inflorescence axillary, flowers on an unbranched axis, cones absent; flowers bisexual, stalked, flowers with many planes of symmetry, 17.0-19.0 mm long, diameter small (up to10 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth white; 5, free; stamens 28-33, present, free of each other, free of the perianth; ovary superior, carpels joined (when more than one), locules 3; styles solitary, 1.

Fruits: Infrutescence arranged on unbranched axis, fruit 10.0-15.0 mm long, green to brown to grey, not spiny, fleshy, simple, dehiscent, capsule; seeds 3, about 10 mm long, not winged, broad (as wide as long), seed 1-10 mm diam.

Distribution: Morobe.

Dubouzetia kairoi
Botanical records
in PNGplants database

Map details