Cryptomyces maximus
| Cryptomyces maximus | |
|---|---|
| Depiction of fruiting bodies | |
| Image of fruiting bodies | |
| Scientific classification | |
| Domain: | Eukaryota | 
| Kingdom: | Fungi | 
| Division: | Ascomycota | 
| Class: | Leotiomycetes | 
| Order: | Rhytismatales | 
| Family: | Cryptomycetaceae | 
| Genus: | Cryptomyces | 
| Species: | C. maximus  | 
| Binomial name | |
| Cryptomyces maximus | |
Cryptomyces maximus (commonly known as willow blister) is a species of fungus within the genus Cryptomyces.
Cryptomyces maximus is the only species listed on The world's 100 most threatened species as being native to the British Isles.