Amanita SubSection
Base of stalk has concentric, toothed rings
Annulus usually present; usually (in my experience) jagged at the edges | Links from Look-alikes Vaginatae Section
Cap margin distinctly striate in maturity
Either (most commonly) annulus absent and colors brown or grey, or
(rarely) annulus present and colors bright: red, orange or yellow
Volva sack-like in some species, in others clamped tightly to the stem, leaving traces in bands of color on the stalk |