PNGTreesKey – Agathis robusta (F.Muell.) F.M.Bailey var. nesophila Whitmore
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
A Synopsis of the Queensland Flora 498 (1883)
Other Literature: J.J. Havel, Forest Botany, Part 2 Botanical Taxonomy 22 (1975) Fig. 3-4.
Timber Group: Softwood Tradename: Kauri Pine
Field Characters: Large canopy tree (up to 30 m high); Bole cylindrical (up to 200 cm diam.); straight (up to 20 m long); buttresses buttresses present; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark grey to brown, slightly rough or smooth, scattered scaly or flaky; bark exudate (sap) present, white/milky, not readily flowing (spotty), colour not changing on exposure to air, sticky; terminal buds not enclosed by leaves.
Indumentum: Complex hairs absent; stinging hairs absent; mature twig indumentum (hairs) absent.
Leaves: Leaves spaced along branches, opposite (in pairs, opposite one another on the branchlet) or spiral (leaves occurring singly at a node and arranged spirally up the branchlet), simple (a leaf composed of a single blade); petiole absent or present (c. 2 mm long), not winged, attached to base of leaf blade, not swollen; leaves broadest at or near middle, 5.0-8.0 cm, 1.5-2.5 cm; symmetric, entire, not dissected or lobed, obtuse or acute, venation parallel-veined, secondary veins closed, prominent, intramarginal veins absent; leaves lower surface green, upper surface dark green, indumentum (hairs) absent; absent; domatia absent; stipules absent.
Flowers: Inflorescence terminal (female flowering cones) or axillary (female flowering cones, with female flowers inserted on blunt scales, hence axillary; male flowers in axillary spikes), flowers on an unbranched axis, flowers arranged in a cone (strobilus); flowers unisexual, unisexual with male and female flowers on the same plant, not stalked, flowers slightly asymmetric, 2.0-(male flowers; female flowers)-10.0 mm long, diameter small (up to10 mm diam.) (2-3 mm diam.); perianth absent; stamens 2-(reduced to pollen sacs on undersurface of scales)-5, present, free of each other; ovary superior, carpels solitary, locules 1; styles absent.
Fruits: Infrutescence arranged on unbranched axis, arrangement of fruits present, cone 80.0-105.0 mm, 80.0-105.0 mm, green or brown; seeds 100, about 10 mm long or much more than 10 mm long, winged (one wing c. 25 mm long), narrow (longer than wide), seed 1-10 mm diam.
Distribution: Morobe, Western Highlands, Central & New Britain.
in PNGplants database