From Mayne Island, a group of white mushrooms growing on a patch where no other mushrooms are around. Various stages of development are seen. Medium size, pure white, coarse branching gills, ring on the stem. Unfortunately, I did not look for the spores. Is it possible to ID this one?
This looks very much like "Woman on a Motorcycle" which used to be called Lepiota naucina, and is now.... Leucoagaricus leucothites. Better in this case perhaps to also eyeball the base of the stem.
