S
- Cortinarius salor
- Cortinarius sanguineus
- Cortinarius saturninus
- Cortinarius scandens
- Cortinarius scaurus
- Cortinarius semisanguineus – also known as Dermocybe semisanguinea red-gilled cortinar (Europe & North America)
- Cortinarius sinapivelus
- Cortinarius sodagnitus
- Cortinarius sphaerosporus
- Cortinarius splendidus – also known as Dermocybe splendida splendid red skin-head (Australia)
- Cortinarius squamulosus – edible, but related species have unclassified edibility
- Cortinarius stemmatus
- Cortinarius sodagnitus
- Cortinarius sterilis
- Cortinarius stillatitius
- Cortinarius subarcheri – (Australia)
- Cortinarius subargentatus
- Cortinarius subcuspidatus
- Cortinarius subflexipes
- Cortinarius subfoetidus
- Cortinarius suboenochelis
- Cortinarius subpulchrifolius
- Cortinarius subpurpurascens
- Cortinarius subpurpureophyllus
- Cortinarius subpurpureus
- Cortinarius subtestaceus
- Cortinarius superbus
Read more about this topic: List Of Cortinarius Species