Australian Tropical Rainforest Plants - Online edition

Perrottetia arborescens (F.Muell.) Loes.

Shrub (woody or herbaceous, 1-6 m tall)
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Flowers. © CSIRO
Fruit, three views, cross secion and seed. © W. T. Cooper
© W. T. Cooper
Scale bar 10mm. © CSIRO
Cotyledon stage, epigeal germination. © CSIRO
10th leaf stage. © CSIRO

Loesener, L.E.T. (1893) Die Naturlichen Pflanzenfamilien 3(5) : 220.


Seldom exceeding 30 cm dbh.


Leaf blades about 4-12 x 2.5-5 cm tending to be alternate and not spirally arranged on the twigs. Foveoles present on the midrib and occasionally on the lateral veins. Fine oak grain in the twigs.


Sepals about 1-1.2 mm long. Petals deltoid, about 0.7-0.9 mm long, puberulous. Disk cupular, about 1.5 mm diam. Staminal filaments about 0.1-0.2 mm long, attached to the margin of the disk. Ovary glabrous, ovules 2 per locule.


Fruits globular or depressed globular, about 6-12 mm diam. Seed +/- globose, about 5.5-6 mm diam. Testa smooth. Embryo small, about 1 mm long.


Cotyledons obovate, emarginate with a small gland at the apex of the midrib. At the tenth leaf stage: leaf blade elliptic to obovate, apex acuminate, base cuneate, glabrous, underside usually with crater-like foveoles along midrib; stipules small, triangular. Seed germination time 47 to 115 days.

Distribution and Ecology

Endemic to NEQ. Altitudinal range from 700-1200 m. Grows in upland and mountain rain forest.

Caryospermum arborescens F.Muell., Fragmenta Phytographiae Australiae 6: 202(1868), Type: Ad sinum Rockinghams Bay. Dallachy. Perrottetia alpestris (Blume) Loes., Die Naturlichen Pflanzenfamilien 3(5) : 220(1893). Perrottetia alpestris subsp. moluccana (Blume) Ding Hou, Flora Malesiana Series I 6: 291(1966).
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