Botryobasidium lembosporum
Family Botryobasidiaceae · Updated October 2026
30US records
3states
Julbusiest month
30 US records since 1958 (0 in the last 10 years)
Last seen Aug 11, 1968 (about 58 years ago) in Great Smoky Mountains National Park, TN, a preserved specimen in University of Illinois Fungarium - Fungi. Most US records come from Oregon, Tennessee and Louisiana, 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
| State | Records | Latest sighting |
|---|---|---|
| Oregon | 27 | Jul 20, 1958 |
| Tennessee | 2 | Aug 11, 1968 |
| Louisiana | 1 | Feb 23, 1960 |
Top counties
- Josephine County, OR (9) · latest Jul 20, 1958
- Jackson County, OR (7) · latest Jul 17, 1958
- Lane County, OR (5) · latest 1958-07
- Wallowa County, OR (2) · latest Jul 17, 1958
- Blount County, TN (2) · latest Aug 11, 1968
- Curry County, OR (1) · latest Jul 9, 1958
- Douglas County, OR (1) · latest Jul 20, 1958
- Deschutes County, OR (1) · latest Jul 9, 1958
- Coos County, OR (1) · latest 1958-06
- East Baton Rouge Parish, LA (1) · latest Feb 23, 1960
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.