Alysidium aureofulvum
Family Botryobasidiaceae · Updated October 2026
68US records
18states
Octbusiest month
68 US records since 1882 (0 in the last 10 years)
Last seen Sep 30, 1988 (about 38 years ago) near Reserve, Sawyer County, WI, a preserved specimen in University of Illinois, Illinois Natural History Survey Fungarium - Fungi. Most US records come from Massachusetts, Illinois and Delaware, and the busiest months are Oct, Sep and Nov. (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, Sep, Nov.
Where it's recorded
Top counties
- Hampden County, MA (8) · latest Oct 23, 1943
- New Castle County, DE (8) · latest Sep 4, 1894
- Fayette County, WV (6) · latest Oct 23, 1895
- Montgomery County, MD (6) · latest May 6, 1963
- Norfolk County, MA (4) · latest Oct 10, 1922
- Cook County, IL (4) · latest Mar 13, 1909
- Champaign County, IL (3) · latest Nov 3, 1984
- Washtenaw County, MI (3) · latest May 10, 1894
- Rooks County, KS (2) · latest Nov 29, 1893
- Western Connecticut Planning Region, CT (2) · latest Oct 9, 1948
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.