Gardenia actinocarpa Puttock
Puttock, C.F. (1988) Austrobaileya 2(5): 435. Type: Queensland, Oliver Creek, Cape Tribulation, October 1973, Webb & Tracey 10826 ; holo: BRI; iso: K, NSW, QRS.
Usually flowers and fruits as a shrub about 1-3 m tall.
Stipules resinous, about 3-7 mm long, completely encircling the twigs. Young shoots and terminal buds sticky or resinous. Leaf blade margin scabrous giving it a finely toothed appearance. Leaf blades about 9-27 cm long, often somewhat sandpapery on both the upper and lower surfaces, petioles about 0.4-0.9 cm long.
Flowers pleasantly perfumed. Calyx tube (hypanthium) with six longitudinal ribs, inner surface pubescent. Calyx tube (hypanthium) about 7 mm long, lobes linear, about 6-25 mm long. Corolla tube cylindrical about 15-25 mm long, corolla lobes about 20-30 mm long. Anthers about 10-14 mm long, mostly included in the corolla tube. Style ending in three stigmas like a laid rope.
Cotyledons orbicular, about 11-12 x 10-12 mm, margins often wavy. Hypocotyl densely hairy, the hairs erect and the bases glandular. First pair of leaves with hooked hairs on the margins. At the tenth leaf stage: leaf blade about 10-15 x 1.5-2 cm, undersurface smooth except for a few scattered tooth-like hairs along the midrib and main lateral veins. Margin undulate and finely toothed. Stipules about 6-7 mm long, triangular with terete tips. Terminal bud resinous. Stem somewhat scabrous. Seed germination time 38 to 196 days.
A very showy shrub that would be a useful addition to tropical horticulture. Large white flowers are produced in profusion especially on male plants.