Crescent Crust
Chaetodermella luna · Family Gloeophyllaceae · Updated October 2026
55US records
9states
Julbusiest month
55 US records since 1917 (3 in the last 10 years)
Last seen May 26, 2024 (about 2 years ago) in Siskiyou County, CA, a preserved specimen in INSDC Sequences. Most US records come from Oregon, Idaho and Alaska, and the busiest months are Jul, Aug and Oct. (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, Aug, Oct.
Where it's recorded
Top counties
- Deschutes County, OR (11) · latest Jul 16, 1958
- Josephine County, OR (6) · latest Jul 20, 1958
- Bonner County, ID (5) · latest Oct 16, 1920
- Douglas County, OR (4) · latest Jul 23, 1958
- Kenai Peninsula Borough, AK (3) · latest Aug 17, 1933
- Siskiyou County, CA (2) · latest May 26, 2024
- Albany County, WY (2) · latest 2013
- Flathead County, MT (2) · latest Jul 12, 1971
- Latah County, ID (2) · latest Nov 13, 1946
- Wallowa County, OR (2) · latest Jul 23, 1958
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.