Siphonodon australis Benth.

Bentham, G. (1863) Flora Australiensis 1: 403. Type: Queensland. Brisbane river, A. Cunningham. N.S. Wales. Clarence river, Beckler.

Ivorywood; Scrub Guava; Wild Guava

A thin orange layer usually visible beneath the dead bark.

Leaf blades about 4.5-12 x 2.5-6 cm. Midrib and lateral veins raised on the upper surface. Stipules small and inconspicuous.

Inflorescence about 10-20 mm long, shorter than the leaves, 1-3 flowered, pedicels about 8-10 mm long. Sepals +/- semicircular, about 1.5-3 mm long. Petals nearly orbicular, about 6.5-8 mm. Anther filaments about 1.5 x 1.5 mm, as wide or wider than the anthers. Disk enclosing the ovary and surrounding the style which is located in a well in the disk. Stigma +/- level with the disk.

Fruits globular, obovoid or depressed globular, about 25-40 mm long. Seeds immersed in the granular pericarp, each surrounded by a very hard endocarp. Seeds about 6 x 2.5 mm.

Cotyledons elliptic to obovate, apex rounded. At the tenth leaf stage: leaf blade lanceolate or elliptic, apex acute, apiculate or mucronate, base cuneate, margin crenate or serrate. Seed germination time 717 days.

Endemic to Australia, occurs in CYP, NEQ, CEQ and in south-eastern Queensland and north-eastern New South Wales but not in coastal central Queensland. Altitudinal range in CYP and NEQ from sea level to 900 m. Grows in drier rain forest and monsoon forest.