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Scale bar 10mm. Copyright CSIRO
Fruit, dehisced fruit and seeds. Copyright W. T. Cooper
Flower. Copyright Barry Jago
10th leaf stage. Copyright CSIRO
Cotyledon stage, epigeal germination. Copyright CSIRO
Hymenosporum flavum (Hook.) F.Muell.
Mueller, F.J.H. von (1861) Fragmenta Phytographiae Australiae 2: 77. Type: ?.
Pittosporum flavum Hook., Curtis's Botanical Magazine 80: t. 47(1854), Type: Port Stephens, East Australia, Allan Cunningham; Bidwill, Wide Bay district.
Native Frangipani; Frangipani, Native; Queensland Frangipani
Leaf blades about 6.5-13 x 2-4.5 cm. Lateral veins forming a series of somewhat confused loops well inside the blade margin.
Flowers quite large. Calyx about 7-9 mm long, pubescent outside but glabrous inside. Petals about 40 mm long, pubescent outside but glabrous on the inner surface, held together by interlocking hairs on the margins. Anther filaments hairy on the outer surface.
Capsules somewhat flattened, about 30-40 x 25-30 mm, 2-celled with numerous seeds stacked one above the other in each cell. Seeds flat with a marginal wing. Endosperm flat and could be mistaken for flat cotyledons. Embryo very small, about 0.2-0.3 mm long, cotyledons scarcely discernible.
Cotyledons linear or narrowly obovate, about 15-18 mm long, hairy on both the upper and lower surfaces. At the tenth leaf stage: leaf blade obovate, apex acute or acuminate, base attenuate, margin dentate to serrate, teeth irregular, upper surface hairy. Petiole hairy.
Distribution and Ecology
A slender tree extensively cultivated for the large perfumed flowers. Often planted as street trees.
Shrub (woody or herbaceous, 1-6 m tall)