Amanita grisella

Description:

A patch of large mushrooms up to 280mm across, caps shallow domed to flat, pale grey, crumbly fragments mostly near the centre; stipe very robust, straight, white, lightly fibrous, with ring, thicker near base; gills dense, white, slightly adnate.

Habitat:

Suburban highway division with eucalyptus and some native understory.

Notes:

Fuhrer(2005) #9
http://bie.ala.org.au/species/AMANITA+GR...