Atheniella amabillissima
Family Mycenaceae · Updated October 2026
60US records
12states
Octbusiest month
60 US records since 1909 (6 in the last 10 years)
Last seen Aug 19, 2022 (about 4 years ago) near Ophir, San Miguel County, CO, a preserved specimen in Denver Botanic Gardens, Sam Mitchel Herbarium of Fungi. Most US records come from Washington, California and Idaho, and the busiest months are Oct, Nov and Sep. (Data as of October 26, 2026; records can lag by weeks.)
⚠ Never eat a wild mushroom based on this site. We show where fungi have been recorded, nothing more. We never say any mushroom is edible or safe, and you shouldn't decide that from any website, app or photo. Many deadly mushrooms look like harmless ones. If someone may have eaten a wild mushroom, call Poison Control at 1-800-222-1222 right away.
Lookalike warning. Many mushrooms, including deadly ones, closely resemble each other, and the only reliable identification comes from an expert looking at the actual specimen (often with spore prints or microscopy). Never use a name, photo or record count on this page to decide what something is.
When it's recorded
Records by month, all years. Busiest: Oct, Nov, Sep.
Where it's recorded
Top counties
- Pierce County, WA (6) · latest Feb 21, 2020
- Sierra County, CA (4) · latest Jun 5, 1989
- Thurston County, WA (4) · latest Jan 6, 2021
- King County, WA (4) · latest Oct 18, 2000
- Siskiyou County, CA (3) · latest Oct 30, 1983
- Bonner County, ID (3) · latest Sep 28, 1992
- Kittitas County, WA (3) · latest Oct 24, 1963
- Humboldt County, CA (2) · latest Nov 10, 1979
- Yuba County, CA (2) · latest Nov 9, 1984
- Nevada County, CA (2) · latest Nov 26, 1981
More on this species from GBIF.
Bring along
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Regional mushroom field guideSee on Amazon🍄
Folding mushroom knife with brushSee on Amazon🍄
Wicker foraging basketSee on Amazon🍄
10x hand lens / loupeSee on Amazon🍄
Spore print paperSee on AmazonAs an Amazon Associate we earn from qualifying purchases.