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Citron amanita

Identifying Your Amanita
7.3

Citron amanita

AMANITA CITRINA
Frequency 
Frequent
Unknown
Medium
Size
Habitat
Under hardwoods and conifers.
Fruit body
The color of the cap and the color of the secondary veil, as well as the large marginated bulb at the base of its stipe, make it possible to identify it for sure.
Cap
The cap is gray, darker in the center, bald or adorned with whitish to brownish gray velar flakes.
Margin
Even, not lined or sometimes shortly lined at maturity.
Gills
Whitish, crowdy with many short gills.
Stalk
White to yellowish.
Stalk Feature
Stipe largely bulbous-marginated sometimes longitudinaly « chiseled ». With a fairly persistant skirtlike white or pale yellow ring.
Flesh
Whitish, unchanging when sliced.
Chemical reactions
Discoloration of the cap under the effect of KOH and NaOH. Color change of cap and stipe due to FeSO4. No effect on the flesh.
Comments 
The cap color of citron amanita varies widely, ranging from greenish (a color that fades with age) or dark gray to white in the white variety. This is why it is described in three different places to help the amateurs to identified them: 3.2 for fruitbodies with a greenish cap, 5.8 for the white variety and 7.3 for fruitbodies with a gray to brownish gray cap.
More photos 
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