PNGTreesKey – Myristica hollrungii Warb.


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

Myristica hollrungii Warb.

Monog. Myrist. 490 (1897) Fig. 19.

Other Literature: D.B. Foreman, Handbooks of the Flora of Papua New Guinea 199-200 (1978)

Family: Myristicaceae

Timber Group: Commercial hardwood

Field Characters: Large canopy tree (mostly 20-36 m high) or Small sub-canopy tree; Bole cylindrical (up to c. 75 cm diam.); straight (bole up to c. 15 m long); buttresses occasionally buttresses present or buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots sometimes stilt roots present; Bark red, brownish grey, or brown, slightly rough or smooth, slightly scaly or flaky, slightly fissured, or somewhat peeling; Subrhytidome (under-bark) pink; less than 25 mm thick, 15.0-20.0; bark blaze consisting of one layer; faintly to non-aromatic; outer blaze pale orange or pale red, markings absent, fibrous; inner blaze pale orange or pale red, markings absent, fibrous; bark exudate (sap) present, colourless, flowing or not readily flowing (spotty), colour changing on exposure to air, to red, usually not sticky or slightly 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 sometimes broadest below middle or equally broad throughout much of length, (15.0-) 20.0-35.0 (-40.0) cm, (4.0-) 5.0-13.0 (-15.0) cm; symmetric, entire, not dissected or lobed, acute or acuminate, venation pinnate, secondary veins open, prominent, intramarginal veins absent; leaves lower surface pale green or brown (slightly (with brown hairs), upper surface dark green, indumentum (hairs) absent or present when young, indumentum (hairs) sparse; absent; domatia absent; stipules absent.

Flowers: Inflorescence axillary, flowers arising from a single point (male inflorescences) or flowers on a branched axis (female inflorescences), cones absent; flowers unisexual, unisexual with male and female flowers on different plants, stalked, flowers with many planes of symmetry, 5.0 (c.) mm long, diameter small (up to10 mm diam.); perianth present, with all sepals and/or petals (hence tepals) similar, inner perianth pale yellow or greenish cream-coloured; 2-3 (-5), some or partly joined; stamens 8-30, absent, joined, free of the perianth; ovary superior, carpels joined (when more than one), locules 1; styles solitary, 1.

Fruits: Infrutescence arranged on branched axis, fruit (2.0-) 3.0-5.0 (-6.0) mm long, brown, not spiny, fleshy, simple, dehiscent, capsule; seeds 1, much more than 10 mm long (20-30 mm long), not winged, broad (as wide as long), seed more than 10 mm diam. (c. 25 mm diam.).

Distribution: West Sepik, East Sepik, Madang, Morobe, Western, Gulf, Central, Northern, New Britain, New Ireland & Bougainville.

Myristica hollrungii
Botanical records
in PNGplants database

Map details