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Leaves and Flowers. Copyright CSIRO
Cotyledon stage, epigeal germination. Copyright CSIRO
Scale bar 10mm. Copyright CSIRO
10th leaf stage. Copyright CSIRO
Flowers. Copyright CSIRO
Emmenosperma cunninghamii Benth.
Bentham, G. (1863) Flora Australiensis 1: 415. Type: N. Australia. Port Warrender, N.W. Coast, A. Cunningham.
Grows into a large, canopy tree. Living bark bitter when chewed.
Leaf blades about 3.5-11 x 1.8-6.5 cm. Terminal buds and young shoots clothed in pale brown hairs.
Calyx about 2.5-3 mm long, the lobes about 1.5 mm long. Petals about 1 mm long. Anthers enveloped in the hood-like petals until anthesis. Staminal filaments broad based, triangular in outline. Disk orange, attached to the base of the hypanthium and surrounding the ovary. Ovary 3-locular.
Cotyledons obovate, about 6-7 x 3-5 mm, rather thick and fleshy, venation not visible. First pair of leaves with stipules about 1.5 mm long. At the tenth leaf stage: leaf blade ovate or lanceolate, about 55-60 x 20-25 mm, mainly glabrous except for a few pale or yellowish hairs on the petiole and the midrib on the underside of the leaf blade; petiole about 5 mm long, clothed in scattered pale prostrate hairs. Stipules hairy to densely hairy, small, triangular, about 1 mm long.
Distribution and Ecology
Endemic to Australia, occurs in WA, NT, CYP, NEQ and southwards as far as north-eastern New South Wales. Altitudinal range in northern Australia from near sea level to 500 m. Grows in monsoon forest, dry rain forest and well developed rain forest on a variety of sites.