| canada | nova scotia | cortinarius scaurus | species | 2 | 0 |
| canada | quebec | cortinarius scaurus | species | 7 | 0 |
| france | | cortinarius scaurus subsp. violaceonitens | subspecies | 2 | 0 |
| france | | cortinarius scaurus var. notandus | varietas | 2 | 0 |
| italy | | cortinarius scaurus | species | 3 | 0 |
| norway | | cortinarius scaurus | species | 1 | 0 |
| slovakia | | cortinarius scaurus | species | 1 | 0 |
| sweden | | cortinarius scaurus f. phaeophyllus | forma | 1 | 0 |
| switzerland | | cortinarius scaurus | species | 2 | 0 |
| united kingdom | scotland | cortinarius scaurus | species | 1 | 0 |
| united states | new york | cortinarius scaurus | species | 1 | 0 |
| united states | tennessee | cortinarius scaurus | species | 1 | 0 |