Cudonia circinans
- kingdom: Fungi
- phylum: Ascomycota
- class: Leotiomycetes
- order: Rhytismatales
- family: Cudoniaceae
- genus: Cudonia
- species: Cudonia circinans
- Kentville
Nova Scotia- Watson Lake
Yukon
Canada- Viljandi
Viljandimaa
Estonia- Jokkmokk
Norrbotten- Kågeröd
Skåne- Bergeforsen
- Matfors
Västernorrland- Ramnäs
Västmanland- Sköllersta
- Vintrosa
Örebro- Krokek
Östergötland
Sweden- College
Alaska
United States