I quote from the publication Fungi Downunder
" While it is commonly believed that anything called a 'mushroom' is edible, and a 'toadstool' poisonous, this is a fallacy.  . . .  Importantly, it should be noted that fruit-bodies of many species are indeed poisonous, and there is no general rule for determining edibility or otherwise.  Unless you have reliable advice . . ., it is best not to sample any unknown specimen, regardless of what it is called.

Cathy