Osmoporus mexicanus
Family Gloeophyllaceae · Updated October 2026
37US records
15states
Junbusiest month
37 US records since 1887 (4 in the last 10 years)
Last seen Jun 23, 2024 (about 2 years ago) in Grant County, OR, a preserved specimen in University of Washington Herbarium (WTU) - Macrofungi Collection. Most US records come from Florida, Kansas and Wyoming, and the busiest months are Jun, Sep and Feb. (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: Jun, Sep, Feb.
Where it's recorded
Top counties
- Wabaunsee County, KS (5)
- Albany County, WY (4) · latest Sep 16, 1961
- Jackson County, MS (3) · latest 1896-06
- Miami-Dade County, FL (2) · latest Jun 29, 1915
- Lee County, FL (2) · latest May 1, 1916
- Lee County, AL (2) · latest 1896-01
- Bibb County, GA (1) · latest 1887-08
- Putnam County, FL (1) · latest 1906-02
- Mercer County, NJ (1)
- Harrison County, MS (1)
More on this species from GBIF.
Bring along
🍄
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.