In another Canberra Nature Map report of Amanita muscaria I commented on a suggestion that the subject might have been Amanita caesarea (a species not yet known from Australia though I did say that something similar to an Asian relative, Amanita hemibapha, does occur in northern Australia). This photo gives a perfect opportunity to point out another naked eye difference between muscaria and the caesarea group - the base of the stem. In muscaria you see one or more rings of scales sticking out a bit. In the caesarea group the stem comes out of a pronounced, cup-like sac (or saccate volva, to be technical). You can see that in a couple of photos on the botanic gardens' website, which show a Queensland specimen of a hemibapha relative - http//www/cpbr.gov.au/fungi/images-captions/amanita-aff-hemibapha-1.html. Replace the 1 with a 2 to see the other photo.
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