PNGTreesKey – Ilex ledermannii Loes.


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

Ilex ledermannii Loes.

Botanische Jahrbucher für Systematik, Pflanzengeschichte und Pflanzengeographie Vol. 59: 81 (1924)

Family: Aquifoliaceae

Timber Group: Occasional timber species

Field Characters: Large canopy tree (up to 35 m high); Bole cylindrical (20-40 cm diam.); straight (bole 10-15 m long); buttresses buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark grey, rough, pustular, lenticels elongated vertically or slightly lenticels rounded/swelling; Subrhytidome (under-bark) green; less than 25 mm thick, 10.0; bark blaze consisting of one layer; faintly to non-aromatic; outer blaze yellowish white, yellow (pale (cream-coloured), pale orange, or pale brown, speckled (strongly pale brown), granular without splinters; inner blaze yellowish white, yellow (pale (cream-coloured), or pale brown, speckled (strongly pale brown), granular without splinters; bark exudate (sap) present, colourless, not readily flowing (spotty), colour changing on exposure to air, to dark green, not sticky; terminal buds not enclosed by leaves.

Indumentum: Complex hairs absent; stinging hairs absent; mature twig indumentum (hairs) absent (simple hairs on axes of inflorescence).

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, 7.0-12.0 cm, 3.5-5.5 cm; symmetric, entire, not dissected or lobed, acuminate, venation pinnate, secondary veins open, prominent, intramarginal veins absent; leaves lower surface pale green, upper surface green (glossy), indumentum (hairs) absent; absent; domatia absent; stipules absent.

Flowers: Inflorescence axillary, often flowers arising from a single point or flowers on a branched axis, cones absent; flowers unisexual, unisexual with male and female flowers on different plants, stalked, flowers with many planes of symmetry, 6.0-7.0 mm long, diameter small (up to10 mm diam.) (6-7 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth white; 4-5, some or partly joined; stamens 8, present, free of each other, free of the perianth; ovary superior, carpels joined (when more than one), locules 4-6; styles absent (stigma sessile).

Fruits: Infrutescence often arising from single point or arranged on branched axis, fruit 10.0 (c.) mm long, dark red, not spiny, fleshy, simple, indehiscent, berry or drupe; seeds 3-6, to about 5 mm long, not winged, broad (as wide as long), seed 1-10 mm diam.

Distribution: Morobe or Western Highlands.

Ilex ledermannii
Botanical records
in PNGplants database

Map details