For general comment about the genus see: https://tas.naturemapr.org/species/5675. In Ganoderma australe the fruitbody is stemless, the upper surface is matt and the fruitbodies may extend to more than 30 centimetres from their woody substrate.
Ganoderma australe is listed in the following regions:
South Coast | New South Wales North Coast | Tasmania
Places
Guildford, TAS