Amauroderma rude

Amauroderma rude is a tough woody mushroom in the family Ganodermataceae. A polypore fungus, it is found in Eastern Australia, where it grows as a saprophyte on rotting, buried wood.
Etymology.
"Amauroderma" means "dark/dusky-skinned" (from "amauro", meaning "dark or dusky", and "derma", meaning "skin"). The second half of the binomen, "rude", means "robust".
Description.
Fruit bodies have caps that are typically wide with alternating bands of light and dark brown rings. On the cap underside are small white to pale grey pores that initially turn red when bruised before turning black; this red-staining behaviour is unique in its genus.
The light to dark brown stipe measures long by thick.