When I lived in Michigan in the 1980s, it was inevitable that sometime during the autumn, somebody would not look closely at every one of the mushrooms that they harvested - and they would get some of the poisonous Galerina species mixed in with their little brown edible mushrooms, like the Flammulina velutipes, the Armellariella mellea, or the Pholiota mutabilis. So, so sad.