Delicate tree shells (Anthrocophyllum archeri)

Almost a whole trunk of a small tree was covered in these delicate shells in various stages of development.
The largest were about 16mm wide. Papery, fuzzy, pale tan caps with darker orange/tan. Open, simple gills below.
In damp rain forest dominated by eucalyptus.
Anthracophyllum is a genus with only ten members and mostly found in the tropical parts of the world. However this species is mostly found in the cooler parts of Australia.