PNGTreesKey – Quintinia microphylla Hatus.


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

Quintinia microphylla Hatus.

Family: Quintiniaceae

Timber Group: Non-timber species

Field Characters: Large canopy tree (c. 20-25 m high) or Small sub-canopy tree; Bole cylindrical (c. 30 cm diam.); straight (bole c. 15 m long); buttresses buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark brown, rough, pustular, lenticels elongated vertically; Subrhytidome (under-bark) green or yellow; less than 25 mm thick, 10.0-12.0; bark blaze consisting of one layer; faintly to non-aromatic; pleasant; outer blaze white or yellow (pale (straw-coloured), with stripes, fibrous; inner blaze white or yellow (pale (straw-coloured), with stripes, fibrous; bark exudate (sap) present, colourless, not readily flowing (spotty), colour changing on exposure to air, to orange, 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 above middle, 18.0-22.0 cm, 7.0-8.0 cm; symmetric, entire, not dissected or lobed, emarginate or retuse, venation pinnate, secondary veins open, not visible, intramarginal veins absent; leaves lower surface pale green, upper surface dark green, indumentum (hairs) absent; absent; domatia absent; stipules absent.

Flowers: Inflorescence axillary, flowers on an unbranched axis, cones absent; flowers bisexual, stalked, flowers with many planes of symmetry, 2.0-3.0 mm long, diameter small (up to10 mm diam.) (3-4 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth white; 4, free; stamens 4, present, free of each other, free of the perianth (joined at base of corolla); ovary inferior, carpels joined (when more than one), locules 5; styles solitary, 1.

Fruits: Infrutescence arranged on unbranched axis, fruit 25.0 (c.) mm long, 20.0 (c.) mm diam., yellow or yellowish green, not spiny, non-fleshy, simple, dehiscent, capsule; seeds 20-(or more)-50, to about 5 mm long, not winged, narrow (longer than wide), seed less than 1 mm diam.

Distribution: Morobe.

Quintinia microphylla
Botanical records
in PNGplants database

Map details