PNGTreesKey – Euroschinus papuanus Merr. & L.M.Perry
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
Journal of the Arnold Arboretum Vol. 29: 158 (1948)
Other Literature: Ding Hou, Flora Malesiana, Series 1 534 (1978) Fig. 63.
Timber Group: Non-timber species
Field Characters: Small sub-canopy tree (up to c. 20 m high); Bole cylindrical (up to c. 25 cm diam.); straight (bole c. 10 m long); buttresses buttresses present (buttresses up to c. 1 m high) or buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark brown, rough, pustular, lenticels irregular; Subrhytidome (under-bark) red or brown; less than 25 mm thick, 3.0-6.0; bark blaze consisting of one layer; strongly aromatic; pleasant; outer blaze red, markings absent, granular without splinters; inner blaze red, markings absent, granular without splinters; bark exudate (sap) present, colourless, not readily flowing (spotty), colour not changing on exposure to air, not sticky; terminal buds not enclosed by leaves.
Indumentum: Complex hairs absent; stinging hairs absent; mature twig indumentum (hairs) absent.
Leaves: Leaves clustered at end of branches or slightly spaced along branches, spiral (leaves occurring singly at a node and arranged spirally up the branchlet), compound (a leaf made up from two or more leaflets); petiole present, not winged, attached to base of leaf blade, not swollen; leaves pinnate (unbranched with more than three leaflets); petiolule not swollen; rachis present, absent, absent; leaves without a terminal leaflet (the number of leaflets even - paripinnate), broadest below middle, 9.0-19.0 cm, 6.0-8.5 cm, leaflets alternate, asymmetric; venation pinnate, secondary veins open, not prominent, but visible, intramarginal veins absent; leaves lower surface green, upper surface dull dark green or green, indumentum (hairs) absent; absent; domatia absent; stipules present, free, laterally placed, not encircling the twig, scale-like, not fringed, large, persistent.
Flowers: Inflorescence axillary, flowers on a branched axis, cones absent; flowers bisexual, stalked, flowers with many planes of symmetry, 2.0-4.0 mm long, diameter small (up to10 mm diam.) (2-3 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth white; 5, free; stamens 10, present, free of each other, free of the perianth; ovary superior, carpels joined (when more than one), locules 1; styles solitary (short), 1.
Fruits: Infrutescence arranged on branched axis, fruit 7.0-10.0 mm long, 5.0-7.0 mm diam., dark red, black, or blackish purple, not spiny, slightly fleshy, simple, indehiscent, drupe; seeds 1, to about 5 mm long, not winged, narrow (longer than wide), seed 1-10 mm diam. (2-3 mm diam.).
Distribution: West Sepik, East Sepik, Madang, Morobe, Central, Northern, Milne Bay, Papuan Islands & New Britain.
in PNGplants database