Australian Tropical Rainforest Plants - Online edition

Alchornea thozetiana (Baill.) Baill. ex Benth.


Shrub (woody or herbaceous, 1-6 m tall)
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Leaves and fruit [not vouchered]. CC-BY J.L. Dowe
Scale bar 10mm. © CSIRO
10th leaf stage. © CSIRO
Cotyledon stage, Epigeal germination. © CSIRO
Family

Bentham, G. (1873) Flora Australiensis 6: 137.

Common name

Thozet's holly

Stem

A small tree not exceeding 30 cm dbh, often flowering and fruiting as a shrub.

Leaves

About 2-4 flat glands on the underside of the leaf blade near its junction with the petiole. Leaf blades about 9-20 x 2.5-6.5 cm. Small oil dots visible with a lens. Midrib raised on the upper surface. Domatia are inconspicuous tufts of hair.

Flowers

Male flowers: Flowers in spikes, fascicles or panicles, branches about 5-10 cm long. Female flowers: Flowers about 7 mm diam., in spikes or racemes about 5-10 cm long. Stigmas +/- subulate, about 3 mm long.

Fruit

Capsules pubescent +/- globular, 3-lobed, about 7-8 x 9-10 mm. Seeds about 6 x 3.5-4 mm.

Seedlings

Cotyledons almost orbicular, about 17-19 mm diam., the petiole clothed in short pale hairs. First pair of leaves with toothed margins, stipules triangular, about 1 mm long. At the tenth leaf stage: leaves with recurved or hooked teeth, each with a pale gland at the apex; stipules triangular at the base but drawn out to a long fine point at the apex, hairy. Seed germination time 31 to 38 days.

Distribution and Ecology

Probably endemic to Queensland, occurs in CYP, NEQ, CEQ and southwards to south-eastern Queensland. Altitudinal range in NEQ from near sea level to 500 m. Grows in monsoon forest and the drier types of rain forest.

Synonyms
Alchornea thozetiana Benth. var. thozetiana, Flora Australiensis 6: 137(1873). Coelebogyne thozetiana Pax & K.Hoffm., Engler's Das Pflanzenreich Heft 63 : 257(1914). Cladodes thozetiana Baill., Adansonia 6: 321(1866), Type: Thozet, near Rockhampton (herb. F. Muell.!).
RFK Code
3043
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