PNGTreesKey – Syzygium thornei Merr. & L.M.Perry
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
Journal of the Arnold Arboretum Vol. 23: 258 (1942)
Timber Group: Non-timber species
Field Characters: Small sub-canopy tree or Large canopy tree (20-40 m high); Bole cylindrical (up to c. 20 cm diam.); crooked (slightly bole up to c. 10 m long) or straight; buttresses buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark pale orange, grey, or brown (pale (different colours in patches), slightly rough or smooth, scaly or flaky (papery) or cracked; Subrhytidome (under-bark) brown or red; less than 25 mm thick, 5.0-8.0; bark blaze consisting of one layer; faintly to non-aromatic; outer blaze brown or red, markings absent, fibrous; inner blaze red or brown, markings absent, fibrous; bark exudate (sap) absent; 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, 8.0-10.0 cm, 2.0-2.5 cm; symmetric, entire, not dissected or lobed, obtuse, venation pinnate, secondary veins open (with many secondary veins), not prominent, but visible, intramarginal veins present (c. 1.5 mm from margin); leaves lower surface green (glossy (or dull green), upper surface dark green (glossy), indumentum (hairs) absent; present; domatia absent; stipules absent.
Flowers: Inflorescence on the trunk or branches, flowers on a branched axis, cones absent; flowers bisexual, stalked, flowers with many planes of symmetry, 8.0-10.0 mm long, diameter small (up to10 mm diam.) (c. 8 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth white; 4, free; stamens 100, present, free of each other, free of the perianth (attached to hypanthium); ovary inferior, carpels joined (when more than one), locules 2; styles solitary, 1.
Fruits: Infrutescence arranged on branched axis, fruit red (pale (pink), not spiny, fleshy, simple, indehiscent, drupe; seeds 1, not winged, broad (as wide as long).
Distribution: West Sepik, Morobe, Gulf, Central & Northern.
in PNGplants database
Notes: Notes Only immature fruits seen.