Australian Tropical Rainforest Plants - Online edition

Cupaniopsis dallachyi S.T.Reynolds

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Flowers [not vouchered]. © G. Sankowsky
Fruit. © CSIRO
Fruit, side views, dehisced fruits and seed with aril. © W. T. Cooper
Cotyledon stage, hypogeal germination. © CSIRO
10th leaf stage. © CSIRO

Reynolds, S.T. () Flora of Australia 25: 199. Type: Jagan, near Malanda, Qld, c. 17 deg 23 S, 145 deg 36 E, 30 Sept. 1980, G.C.Stocker 1773; holo: BRI; iso: QRS.


Sapwood surface corrugated.


Young leafy twigs with a few obscure grooves or striations. Terminal buds clothed in pale, +/- prostrate hairs. Leaflet blades about 6-13 x 3-5.5 cm, midrib depressed or raised on the upper surface. Lateral veins curved throughout their length but not forming loops inside the margin. Compound leaf petiole +/- flat on the upper surface. Compound leaf rhachis +/- convex on the upper surface. Domatia are very small foveoles.


Flowers pedicellate. Calyx lobes +/- orbicular, about 3 mm long. Petals about 1 mm long. Stamens eight.


Capsules about 20-30 x 20-25 mm, hairy on the inner surface, glabrous externally. Aril nearly enclosing the seed.


First pair of leaves simple or compound, trifoliolate or pinnate with as few as two leaflets. Leaflet blades not toothed. At the tenth leaf stage: leaflet blades unequal-sided at the base; midrib raised on the upper surface; lateral veins curved but not forming loops inside the blade margin; compound leaf rhachis ending in an awl-like point. Terminal bud clothed in brown hairs. Seed germination time 19 to 42 days.

Distribution and Ecology

Endemic to NEQ, restricted to the area between the Daintree and Tully Rivers. Altitudinal range from 150-750 m. Grows in well developed rain forest on a variety of sites.

Natural History & Notes

Orange aril eaten by Victoria's Riflebird. Cooper & Cooper (1994).

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