Calophyllum soulattri Burman f., Fl. Indica (1768)

Synonyms
Apoterium sulatri Blume
Calophyllum cymosum Miq.
Calophyllum diepenhorstii Miq.
Calophyllum hibbardii Elmer
Calophyllum hirtellum Miq.
Calophyllum kiong Lauterb. & K.Schum.
Calophyllum lanceolatum Warb.
Calophyllum lancifolium Elmer
Calophyllum oblongum Koord. ex Koord.-Schum.
Calophyllum odoratissimum Norona
Calophyllum paludosum C.T.White
Calophyllum solomonense A.C.Smith
Calophyllum sorsogonense Elmer ex Merr.
Calophyllum spectabile var. ceramicum Boerl.
Calophyllum spectabile var. miquelii Boerl.
Calophyllum tetrapetalum Roxb. ex G.Don
Calophyllum treubii Koord. ex Koord.-Schum.
Calophyllum versteegii Lauterb.
Calophyllum zschokkei Elmer

Description
Large canopy tree (up to c. 37 m high and 55 cm dbh); Bole cylindrical; straight; buttresses absent; Bark yellow when young or brown, rough or smooth (when immature), scaly or flaky or fissured (more shallowly fissured at higher altitudes); Subrhytidome (under-bark) yellow; less than 25 mm thick; bark blaze consisting of one layer; faintly to non-aromatic; outer blaze pink or pale brown, markings absent, slightly fibrous; inner blaze pink or pale brown, markings absent, slightly fibrous; bark exudate (sap) present, white/milky or yellow, not readily flowing (spotty), colour changing on exposure to air, to yellowish brown, sticky; terminal buds not enclosed by 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 at or near middle, (4.5-)7.0-29.0 cm, (1.5-)2.0-10.0 cm; symmetric, entire, not dissected or lobed, acute to acuminate, venation pinnate, secondary veins closed, prominent to not prominent, but visible, intramarginal veins absent; leaves lower surface pale green, upper surface pale green, indumentum (hairs) absent or sometimes present; stipules absent. Inflorescence axillary, flowers on an unbranched axis; flowers bisexual?, stalked, flowers with many planes of symmetry, 5.0-9.0 mm long, diameter small (up to 10 mm diam.) (5-8 mm diam.); perianth present, with all sepals and/or petals (hence tepals) similar, inner perianth white (with anthers yellow); 4, free; stamens 70-130, present, free of each other, free of the perianth; ovary superior, carpels joined (when more than one), locules 1; styles solitary, 1. Infrutescence arranged on unbranched axis, fruit 20.0 (c.) mm long, dark green, blue, or almost black, not spiny, non-fleshy, simple, indehiscent, drupe; seeds 1, about 10 mm long (7-12 mm long), not winged, broad (as wide as long), seed 1-10 mm diam. (6-12 mm diam.). [from PNGTrees]

Ecology
In undisturbed mixed dipterocarp, swamp, tidal and coastal forests up to 700 m altitude. Usually on alluvial sites and along rivers. Found on poor sandy to ultrabasic soils, but also on limestone. In secondary forests usually present as a pre-disturbance remnant tree.

Uses
The wood is used for construction purposes. The latex is used as a pioson. The roots are used against rheumatic pains. Oil is extracted from the seeds.

Distribution
From Thailand and Indo-China to Northern Australia and the Solomon Islands. In Borneo found throughout the island.

Local names
Borneo: Bintang, Bintangor.