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PNGTreesKey Dacrycarpus cinctus (Pilg.) de Laub.

 

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

Dacrycarpus cinctus (Pilg.) de Laub.

Journal of the Arnold Arboretum Vol. 50: 322 (1969)

Family: Podocarpaceae
Conifer

Timber Group: Minor hardwood

Field Characters: Large canopy tree (up to c. 35 m high, rarely taller); Bole cylindrical (20-90 cm diam.); straight (bole 12-20 m long); buttresses buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark grey or dark brown, rough or smooth, irregularly scaly or flaky or pustular, slightly lenticels elongated vertically; Subrhytidome (under-bark) red or brown; less than 25 mm thick, 15.0-20.0; bark blaze consisting of one layer; faintly to non-aromatic; outer blaze pale pink, markings absent, smooth (not fibrous); inner blaze pale pink, markings absent, smooth (not 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 absent; leaves broadest at or near middle or equally broad throughout much of length, 0.3-(adult plants with shorest leaves)-0.6 cm, 0.2-0.3 cm; symmetric, entire, not dissected or lobed, sub acute, venation parallel-veined, secondary veins closed, not visible, intramarginal veins absent; leaves lower surface blue-green (dark (dull), upper surface blue-green (dark (dull), indumentum (hairs) absent; absent; domatia absent; stipules absent.

Flowers: Inflorescence terminal (on short shoots), flowers single (female flowers) or flowers on an unbranched axis (male flowers), cones absent; flowers unisexual, unisexual with male and female flowers on different plants, not stalked or stalked (shortly (female cones), flowers slightly asymmetric, 1.0-(c. (female flowers)-2.0 mm long, diameter small (up to10 mm diam.) (c. 1 mm diam.); perianth absent; stamens 1, absent (anthers inserted on a flat scale), free of each other; ovary superior, carpels solitary, locules 1; styles absent.

Fruits: Infrutescence single, fruit 6.0-7.0 mm long, 7.0 (c.) mm diam., red or green (bluish (receptacle green), not spiny, non-fleshy or fleshy (receptacle fleshy), simple (sometimes referred to as a cone), indehiscent, naked seed only; seeds 1, about 10 mm long (6-7 mm long), not winged, broad (as wide as long), seed 1-10 mm diam. (6-7 mm diam.).

Distribution: Madang, Morobe, Western Highlands, Eastern Highlands, Southern Highlands, Central, Northern & Milne Bay.


Dacrycarpus cinctus
Botanical records
in PNGplants database

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