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Postia ptychogaster · Family Dacryobolaceae · Updated October 2026
40US records
12states
Octbusiest month
40 US records since 1993 (31 in the last 10 years)
Last seen Oct 17, 2025 (about 12 months ago) near Port Angeles, Clallam County, WA, a preserved specimen in INSDC Sequences. Most US records come from California, Washington and Pennsylvania, 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
- Humboldt County, CA (14) · latest Oct 5, 2025
- Clallam County, WA (2) · latest Oct 17, 2025
- Jefferson County, WA (2) · latest Jun 15, 2018
- Montgomery County, VA (2) · latest Aug 29, 1993
- Sierra County, CA (1) · latest Oct 1, 2011
- Mendocino County, CA (1) · latest Nov 18, 2023
- Monroe County, PA (1) · latest Apr 16, 2019
- Ashland County, WI (1) · latest Sep 8, 2017
- Marion County, OR (1) · latest Oct 12, 2018
- Pierce County, WA (1) · latest Oct 9, 2014
More on this species from GBIF.
Bring along
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Folding mushroom knife with brushSee on Amazon🍄
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10x hand lens / loupeSee on Amazon🍄
Spore print paperSee on AmazonAs an Amazon Associate we earn from qualifying purchases.