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Amanita flavoconia
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Amanita flavoconia

Common Name: Yellow Patches Amanita

Synonyms:

Substrate: Ground

Location: Hardwood Forests

Spore Color: White

Gill Color: Whiteish

Comments: 

A brilliant mushroom that has yellow patches on top of a yellow-orange cap. The patches can soon wash away leaving the yellow cap behind. The cap should not have striations around the margin, and there should be a yellowish ring on the stem.  Digging down into the soil you sometimes find yellowish veil remnants around the slight bulb at the base. Flavoconia means "yellowish" and "conical." Not edible. Very common.

Lookalikes:  

Amanita frostiana is very similar, but has a lined margin, white stem, and a bulb with a collar of volval material at the top. A. flavoconia has elliptic, amyloid spores, while A. frostiana has round, non-amyloid spores. Amanata flavorubens is also similar but bruises red. Somewhat similar to our midwestern Amanita muscaria, but is smaller and does not have concentric rings around the base. Also kind of similar to Amanita banningiana, but that mushroom has a strongly lined margin and has a white volva. 

Pictures:

Amanita flavoconia

9/19/12 - Griffey Woods - Bloomington, IN

Amanita flavoconia

Amanita flavoconia

6/5/10 - Brown County State Park - Nashville, IN

Amanita flavoconia

Older specimen.

Amanita flavoconia

Amanita flavoconia

Digging down you sometimes find yellow universal veil remnants.

6/5/12 - Griffy Woods - Bloomington, IN