Pilidiostigma papuanum (Lauterb.) A.J.Scott
Scott, A.J. (1978) Kew Bulletin 33: 327.
Can grow into a small tree but usually flowers and fruits as a shrub about 1-3 m tall.
Leaf blades about 13 x 4 cm. Two intramarginal veins visible on the leaf blade, the outer vein about 0.5-2 mm from the margin and the inner vein about 2-5 mm from the margin. Lateral veins inconspicuous. Petiole flat or channelled on the upper surface. Oil dots quite numerous, pale brown (?) in colour.
Fruits ovoid, about 25-30 x 15-20 mm, calyx lobes persistent at the apex. Seeds variable in size, about 20-22 x 5-6 mm. Testa +/- smooth but marked by numerous oil glands. Anatomy of the seed difficult to interpret. Cotyledons fused together, radicle +/- at right angles to the long axis of the larger cotyledon and completely envelops the smaller cotyledon.
Cataphylls about 1-3 pairs, produced before the first pair of true leaves. At the tenth leaf stage: leaf blade obovate to elliptic, apex obtuse or almost acute, base cuneate or attenuate, glabrous. Oil dots quite numerous, visible with a lens. Stipules very small and inconspicuous. Seed germination time 51 to 89 days.