Marasmius magnisporus
Family Marasmiaceae · Updated October 2026
34US records
12states
Julbusiest month
34 US records since 1904 (0 in the last 10 years)
Last seen Aug 8, 1997 (about 29 years ago) near Newberry, Alachua County, FL, a preserved specimen in University of Florida Herbarium - Fungi. Most US records come from North Carolina, California and Washington, and the busiest months are Jul, Jun and Aug. (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: Jul, Jun, Aug.
Where it's recorded
Top counties
- Orange County, NC (11) · latest Jun 14, 1932
- King County, WA (4) · latest Oct 20, 1911
- District of Columbia, DC (2) · latest Jul 14, 1905
- Santa Cruz County, CA (2) · latest Mar 25, 1934
- Bronx County, NY (2) · latest Aug 28, 1911
- Alachua County, FL (1) · latest Aug 8, 1997
- Alameda County, CA (1) · latest Feb 2, 1911
- Mendocino County, CA (1) · latest Jan 1, 1962
- Carter County, TN (1) · latest Aug 7, 1904
- Fayette County, PA (1) · latest Jun 12, 1938
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.