PNGTreesKey – Burckella polymera P.van Royen
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
Blumea Vol. 6: (1952)
Timber Group: Non-timber species
Field Characters: Large canopy tree; Bole cylindrical; straight; buttresses buttresses present; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark brown, rough, scaly or flaky or slightly pustular, lenticels elongated vertically; Subrhytidome (under-bark) pink; less than 25 mm thick; bark blaze consisting of one layer; faintly to non-aromatic; pleasant; outer blaze orange, markings absent, fibrous; inner blaze orange, markings absent, fibrous; bark exudate (sap) present, white/milky, flowing, 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) present, hairs sparse.
Leaves: Leaves clustered at end of branches, whorled (with more than two leaves at one node of a branchlet), 4-5, simple (a leaf composed of a single blade); petiole present, not winged, attached to base of leaf blade, not swollen; leaves broadest above middle, 25.0-32.0 cm, 9.5-12.0 cm; symmetric, entire, not dissected or lobed, emarginate or retuse, venation pinnate, secondary veins open, not prominent, but visible, intramarginal veins absent; leaves lower surface pale green, upper surface green, indumentum (hairs) present, indumentum (hairs) dense; absent; domatia absent; stipules absent.
Flowers: Inflorescence terminal, flowers arising from a single point (with flowers clustered in 3s), cones absent; flowers bisexual, stalked, flowers with many planes of symmetry, 22.0-25.0 mm long, diameter large (more than10 mm diam.) (c. 20 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth green or yellow; 5, some or partly joined; stamens 10, present, free of each other, free of the perianth; ovary superior, carpels joined (when more than one); styles solitary, 1.
Fruits: Infrutescence arising from single point, fruit not spiny, fleshy, simple, indehiscent, drupe; seeds 1, not winged, broad (as wide as long).
in PNGplants database