PNGTreesKey – Calophyllum collinum P.F.Stevens
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. 61: 571 (1980) Fig. 36.
Other Literature: P.F. Stevens, Handbooks of the Flora of Papua New Guinea 73-74 (1995)
Timber Group: Occasional timber species Tradename: Calophyllum (possible tradename)
Field Characters: Large canopy tree (22-36 m high) or Small sub-canopy tree; Bole cylindrical (up to 85 cm diam.); straight (bole up to c. 25 m long); buttresses buttresses absent; spines spines absent; aerial roots aerial roots absent; stilt roots stilt roots absent; Bark occasionally grey or brown, slightly rough, fissured; Subrhytidome (under-bark) red; less than 25 mm thick; bark blaze consisting of one layer; faintly to non-aromatic; outer blaze red, markings absent; inner blaze red, markings absent; bark exudate (sap) present, yellow, flowing or not readily flowing (spotty), colour changing on exposure to air, to green, sticky; terminal buds enclosed by leaves.
Indumentum: Complex hairs absent; stinging hairs absent; mature twig indumentum (hairs) present, hairs dense.
Leaves: Leaves spaced along branches, opposite (in pairs, opposite one another on the branchlet), simple (a leaf composed of a single blade); petiole present, not winged, attached to base of leaf blade, not swollen; leaves broadest above middle or broadest at or near middle, (1.8-) 2.3-4.0 cm, (1.0-) 1.3-4.5 cm; symmetric, entire, not dissected or lobed, rounded, venation pinnate, secondary veins closed, prominent, intramarginal veins absent; leaves lower surface green, upper surface green, indumentum (hairs) present, indumentum (hairs) dense or sparse; absent; domatia absent; stipules absent.
Flowers: Inflorescence axillary, flowers on an unbranched axis, cones absent; stalked; ovary superior, carpels joined (when more than one), locules 1.
Fruits: Infrutescence arranged on branched axis, fruit 12.0-18.0 mm long, dark blue or bluish black, not spiny, non-fleshy, simple, indehiscent, drupe; seeds 1, to about 5 mm long, not winged, broad (as wide as long), seed 1-10 mm diam.
Distribution: Morobe or Western.
in PNGplants database
Notes: Notes Often included in the family Guttiferae.