PNGTreesKey – Anisoptera thurifera Blume
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
Museum Botanicum Lugduno-Batavum sive stirpium Exoticarum, Novarum vel Minus Cognitarum ex Vivis aut Siccis Brevis Expositio et Descriptio Vol. 2: Fig. 6.
Timber Group: Major exportable hardwood Tradename: Anisoptera
Field Characters: Emergent tree (up to 50 m high) or Large canopy tree; Bole cylindrical (slightly spurred); straight; buttresses buttresses present or sometimes buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark white, pale green, or grey, rough, scaly or flaky or pustular, lenticels elongated vertically; Subrhytidome (under-bark) green; less than 25 mm thick (c. 20 mm thick), 10.0-12.0; bark blaze with two layers; strongly aromatic; unpleasant; outer blaze greenish white, markings absent, fibrous and granular without splinters; inner blaze orange or pale brown, markings absent, fibrous and granular without splinters; 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 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 at or near middle and broadest below middle, 9.0-14.0 cm, 4.0-7.0 cm; symmetric, entire, not dissected or lobed, slightly acuminate, venation pinnate, secondary veins open, prominent, intramarginal veins absent; leaves lower surface green or pale brown, upper surface dark green (glossy), indumentum (hairs) absent; absent; domatia absent; stipules absent.
Flowers: Inflorescence terminal and axillary, flowers on a branched axis, cones absent; flowers bisexual, stalked, flowers with many planes of symmetry, 6.0-10.0 mm long, diameter small (up to10 mm diam.) (4-8 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth white; 5 (twisted), some or partly joined; stamens 50 (c. with hair-like apices), present, free of each other, free of the perianth; ovary superior, carpels joined (when more than one), locules 1; styles solitary, 1.
Fruits: Infrutescence arranged on branched axis, fruit 10.0 (c. plus wings 90-140 mm long) mm long, pale brown, not spiny, non-fleshy, simple, indehiscent, nut (with 2 sepal-formed long wings); seeds 1, about 10 mm long, not winged, broad (as wide as long), seed 1-10 mm diam.
Distribution: Madang, Morobe, Southern Highlands, Western, Gulf, Central, Northern & Milne Bay.
in PNGplants database