PNGTreesKey – Allophylus cobbe (L.) Blume


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

Allophylus cobbe (L.) Blume

Rumphia, sive commentationes botanicae imprimis de plantis Indiae orientalis . 3 (1847)

Other Literature: P.W. Leenhouts, Flora Malesiana, Series 1 459-465 (1994) Fig. 6.

Family: Sapindaceae

Timber Group: Occasional timber species

Field Characters: Large canopy tree (up to 25 m high) or Small sub-canopy tree (usually or shrub); Bole cylindrical (30-60 cm diam.); straight (bole up to 10 m long); buttresses buttresses present (buttresses up to 1 m high); spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark grey or brown, rough, slightly pustular or tessellated, lenticels elongated vertically; Subrhytidome (under-bark) red or brown; less than 25 mm thick, 10.0; bark blaze consisting of one layer; strongly aromatic; pleasant; outer blaze red or reddish brown, with stripes, fibrous; inner blaze red or reddish brown, with stripes, fibrous; bark exudate (sap) absent; terminal buds not enclosed by leaves.

Indumentum: Complex hairs present or absent, often star-like (stellate); 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), compound (a leaf made up from two or more leaflets); petiole present, not winged, attached to base of leaf blade, at base swollen; leaves rarely with one leaflet, mostly with three leaflets (trifoliate), or pinnate (unbranched with more than three leaflets) (with 5 leaflets); petiolule not swollen; rachis present, absent, absent; leaves with a terminal leaflet (the number of leaflets odd - imparipinnate), sometimes broadest above middle, usually broadest at or near middle, or equally broad throughout much of length, 7.5-15.0 cm, 3.5-6.0 cm, leaflets opposite, symmetric, terminal developing leaflet buds absent; venation pinnate, secondary veins open, prominent, intramarginal veins absent; leaves lower surface pale green, upper surface green, indumentum (hairs) absent; absent; domatia present, scattered across lamina; stipules absent.

Flowers: Inflorescence axillary, flowers on an unbranched axis or flowers on a branched axis, cones absent; flowers bisexual, stalked, flowers with many planes of symmetry, 1.0-2.5 mm long, diameter small (up to10 mm diam.) (c. 2 mm diam.); perianth present, with distinct sepals and petals whorls, inner perianth yellow or green; 4 (glabrous to densely hairy), free; stamens 8 (c.), present, free of each other, free of the perianth; ovary superior, carpels joined (when more than one), locules rarely 2-3; styles solitary, 1.

Fruits: Infrutescence arranged on unbranched axis or arranged on branched axis, fruit 4.0-12.0 mm long, red, not spiny, fleshy, simple, indehiscent, drupe; seeds 1, not winged.

Distribution: West Sepik, East Sepik, Madang, Morobe, Western Highlands, Western, Gulf, Central, Northern, Milne Bay, Papuan Islands, New Britain, New Ireland, Manus & Bougainville.

Allophylus cobbe
Botanical records
in PNGplants database

Map details