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Scale bar 10mm. Copyright CSIRO
Flower. Copyright Barry Jago
Flower. Copyright Barry Jago
10th leaf stage. Copyright CSIRO
Cotyledon stage, epigeal germination. Copyright CSIRO
Backhousia bancroftii
Family
Myrtaceae
Botanical Name
Backhousia bancroftii F.M.Bailey
Bailey, F.M. (1886) A Synopsis of the Queensland Flora, Supplement 1: 24. Type: Johnstone River..
Common name
Johnstone River Hardwood; Langdon's Hardwood
Stem
Pale brown, hard, brittle stripes in the blaze.
Leaves
Oil dots visible with a lens if not visible to the naked eye. Leaf blades about 55-95 x 25-50 mm. Midrib depressed on the upper surface of the leaf blade. About 9-15 main lateral veins forming loops or an intramarginal vein well inside the margin, sometimes with another smaller vein further out. Younger leaf bearing twigs 4-angled or shortly 4-winged.
Flowers
Petals about 5 mm long. Anthers about 0.6-0.8 mm long.
Fruit
Fruits about 5-7 mm diam., excluding the calyx lobes.
Seedlings
Cotyledons attenuate at the base, about 7-9 mm wide, oil dots small. At the tenth leaf stage: leaf blade narrowly elliptic to narrowly ovate, tapering to a fine acuminate apex.
Distribution and Ecology
Endemic to NEQ, restricted to the area between Cooktown and Innisfail. Altitudinal range from sea level to 700 m. Grows in well developed rain forest, at times forming almost pure, even aged stands, particularly in the Johnstone River catchment.
Natural History
Produces a useful general purpose construction timber.
Wood specific gravity 1.00. Cause et al. (1989).
NEQ
X
Tree
X
RFK Code
341







