List of species and infraspecific taxa
- Species: Sagiolechia protuberans (Ach.) A. Massal.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Sarcogyne privigna (Ach.) A. Massal.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Sarcogyne regularis Körb.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Sarcosagium campestre (Fr.) Poetsch & Schied.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Sarea difformis (Fr.) Fr.
- Remark:
- Fungus type: saprotrophic
- Treatment in Estonia: certain
- Species: Sarea resinae (Fr.) Kuntze
- Remark:
- Fungus type: saprotrophic
- Treatment in Estonia: certain
- Species: Schaereria fuscocinerea (Nyl.) Clauzade & Cl. Roux
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Schismatomma pericleum (Ach.) Branth & Rostr.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Sclerophora coniophaea (Norman) Mattsson & Middelb.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- ruske nuisamblik
- Species: Sclerophora farinacea (Chevall.) Chevall.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- sale nuisamblik
- Species: Sclerophora nivea (Hoffm.) Tibell
- Remark: see: Sclerophora pallida
- Fungus type: lichenized
- Treatment in Estonia: synonym
- Species: Sclerophora pallida (Pers.) Y. I. Yao & Spooner
- Remark: earlier under Sclerophora nivea (Hoffm.) Tibell
- Fungus type: lichenized
- Treatment in Estonia: certain
- lumi-nuisamblik
- Species: Sclerophora peronella (Ach.) Tibell
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- võrk-nuisamblik
- Species: Scoliciosporum chlorococcum (Stenh.) Vězda
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- linna-rohesamblik
- Species: Scoliciosporum pruinosum (P. James) Vězda
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Scoliciosporum sarothamni (Vain.) Vězda
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Scoliciosporum umbrinum (Ach.) Arnold
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- Species: Scutula epiblastematica (Wallr.) Rehm
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Scutula heeri (Hepp) P. Karst.
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Scutula miliaris (Wallr.) Trevis.
- Remark: includes Karsteniomyces peltigerae (P. Karst.) D. Hawksw. as anamorph
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Skyttea elachistophora (Nyl.) Sherwood & D. Hawksw.
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Skyttea gregaria Sherwood, D. Hawksw. & Coppins
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Skyttea nitschkei (Körb.) Sherwood, D. Hawksw. & Coppins
- Remark:
- Fungus type: lichenicolous
- Treatment in Estonia: certain
- Species: Solorina bispora Nyl.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- kaheeoseline lohksamblik
- Species: Solorina saccata (L.) Ach.
- Remark:
- Fungus type: lichenized
- Treatment in Estonia: certain
- harilik lohksamblik