The fruit body is a polypore that grows out from its woody substrate as a shelf-like growth. Its upper side is creamy to light brown and the densely-pored underside is white. The ‘shelf’ may grow out to about 10 centimetres and almost invariably you don’t see a single fruit body, but a tiered cluster of closely spaced fruit bodies.
The upper surface is spotted, as if stained by water droplets and water droplets may be formed on the underside.
This species causes a brown rot in wood and is found in native forests. It is known also from southern Argentina and Chile.
Postia punctata is listed in the following regions:
Canberra & Southern Tablelands