- Candida solicola A.Endo, Okuma & Goto
- Candida soosii E.K.Novák
- Candida sorbosa L.R.Hedrick & Burke
- Candida sorbosa L.R.Hedrick & Burke ex van Uden & Buckley
- Issatchenkia occidentalis Kurtzman, M.J.Smiley & C.J.Johnson
Cortinarius iodes
Lenzites betulina