-- field key --

1 Amanitoid:

Cap and stem fleshy.

Gills free (from stem) or nearly so. 

Universal veil present, leaving either a cup of tissue about the stem base or patch like or wart like remnants on the cap or stem base.

Partial veil present or, in two groups of Amanita, absent, leaving a membranous annulus (ring of tissue) on the stem.

Caesar's mushroom
Amanita caesarea
Vaginate amanita
Amanita fulva

Booted amanita
Amanita cothurnata
Leather-cupped amanita
Amanita volvata

Death cap
Amanita phalloides
Destroying angel
Amanita ocreata (A. virosa complex)

Cleft-cup amanita
Amanita brunnescens
Lepidella Amanita section
Amanita sect. Lepidella group

Look alikes include Tree Volvariella, Volvariella bombycina -- but it is pink-spored: