Australian Tropical Rainforest Plants - Online edition

Cryptocarya bamagana B.Hyland

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Leaves and inflorescences [not vouchered]. © G. Sankowsky
Habit, flower, anther, staminode, gland, fruit, seedling. © CSIRO
Scale bar 10mm. © CSIRO
Cotyledon stage, hypogeal germination. © CSIRO
10th leaf stage. © CSIRO

Hyland, B.P.M. (1989) Australian Systematic Botany 2: 171. Type: Qld, Bamaga, B. Hyland 25037 RFK, 8.xii.1982; holo: QRS.

Common name

Bamaga Walnut; Walnut, Bamaga


Blaze odour resembling cinnamon.


Leaves about 8-14 x 3-5 cm, +/- white on the underside. Young shoots and the terminal bud clothed in brown prostrate hairs. Midrib +/- flush with the upper surface. Oil dots small and numerous, barely visible with a lens.


Inflorescence paniculate, scarcely exceeding the leaves. Flower emitting an unpleasant odour. Lower half of the perianth tube glabrous on the inner surface. Tepals about 1.6-1.7 mm long, pubescent on the outer surface. Ovary and style glabrous.


Fruits globular, about 9-10 x 9.5-10 mm. Cotyledons white or cream.


First pair of leaves ovate, about 30-35 x 19-22 mm, glaucous on the underside. At the tenth leaf stage: leaf blade with a few scattered hairs on the midrib on the upper surface and petiole; underside of leaf blade glaucous to white; oil dots very small, visible with a lens. Seed germination time 42 to 56 days.

Distribution and Ecology

Endemic to CYP. Altitudinal range from 20-100 m. Grows in rain forest in moist situations along perennial creeks or swamps.

Natural History & Notes

Wood specific gravity 0.72. Hyland (1989).

RFK Code
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