For more information see the Supplementary Notes for the Taxon Dictionary, which explains the names and synonyms, and these Instructions on how to use the online Taxon Dictionary which includes details of the Conservation Evaluation codes.
| Count | Name | Authority | Is Current Name? | Current Taxon Name | Synonyms | BLS Number | Comments | Conservation Evaluation | Group | Account & Map |
|---|---|---|---|---|---|---|---|---|---|---|
| 7711 | Scytinium plicatile | (Ach.) Otálora, P.M. Jørg. & Wedin (2013) | Yes | Scytinium plicatile | Leptogium plicatile | 843 | LC | Scytinium plicatile | ||
| 7712 | Scytinium pulvinatum | (Hoffm) Otálora, P.M. Jørg. & Wedin (2014) | Yes | Scytinium pulvinatum | Leptogium gelatinosum auct. p.p.; Leptogium lichenoides auct. p.p.; Leptogium pulvinatum | 2530 | LC | Scytinium pulvinatum | ||
| 7713 | Scytinium schraderi | (Bernh.) Otálora, P.M. Jørg. & Wedin (2013) | Yes | Scytinium schraderi | Leptogium schraderi | 845 | LC | Scytinium schraderi | ||
| 7714 | Scytinium subtile | (Schrad.) Otálora, P.M. Jørg. & Wedin (2013) | Yes | Scytinium subtile | Leptogium subtile | 1717 | LC NS | Scytinium subtile | ||
| 7715 | Scytinium subtorulosum | (Stizenb.) Otálora, P.M. Jørg. & Wedin (2013) | Yes | Scytinium subtorulosum | Leptogium subtorulosum | 939 | NT NR | Scytinium subtorulosum | ||
| 7716 | Scytinium tenuissimum | (Dicks.) Otálora, P.M. Jørg. & Wedin (2013) | Yes | Scytinium tenuissimum | Leptogium humosum; Leptogium tenuissimum | 847 | LC NS | Scytinium tenuissimum | ||
| 7717 | Scytinium teretiusculum | (Wallr.) Otálora, P.M. Jørg. & Wedin (2013) | Yes | Scytinium teretiusculum | Leptogium microscopicum; Leptogium teretiusculum | 848 | LC | Scytinium teretiusculum | ||
| 7718 | Scytinium turgidum | (Ach.) Otálora, P.M. Jørg. & Wedin (2013) | Yes | Scytinium turgidum | Leptogium turgidum | 849 | LC | Scytinium turgidum | ||
| 7719 | Scytonema atrovirens | (Dillwyn) C. Agardh | No | Ephebe lanata | 509 | LC | ||||
| 7720 | Scytonema interruptum | (Carmich. ex Hook.) Cooke, comb. inval., p.p. | No | Dictyonema coppinsii | 488 | DD NR Sc | ||||
| 7721 | Secoliga cupularis | (Hedw.) Norman (1852) | No | Secoliga jenensis | 539 | LC | ||||
| 7722 | Secoliga jenensis | (Batsch) P.F. Cannon (2024) | Yes | Secoliga jenensis | Gyalecta jenensis var. jenensis | 539 | LC | Secoliga jenensis | ||
| 7723 | Secoliga macrospora | (Vězda) P.F. Cannon (2024) | Yes | Secoliga macrospora | Gyalecta jenensis var. macrospora | 540 | DD NR | Secoliga macrospora | ||
| 7724 | Segestrella lectissima | (Fr.) Mudd | No | Porina lectissima | 1180 | LC | ||||
| 7725 | Segestrella thelostoma | (Ach. ex J. Harriman) Fr. (1845) | No | Pyrenocarpon thelostomum | 1813 | DD NR | ||||
| 7726 | Segestria byssophila | (Körb. ex Hepp) Zahlbr. (1898) | No | Porina byssophila | 1614 | DD NR Sc | ||||
| 7727 | Segestria lectissima | Fr. | No | Porina lectissima | 1180 | LC | ||||
| 7728 | Segestria leptalea | (Durieu & Mont.) R.C. Harris | No | Porina leptalea | 1181 | LC | ||||
| 7729 | Segestria mammillosa | Th. Fr. | No | Porina mammillosa | 1183 | NT NR Sc | ||||
| 7730 | Silobia dilatata | M. Westb. & Wedin | No | Myriospora dilatata | 2611 | NE | ||||
| 7731 | Silobia rhagadiza | (Nyl.) M. Westb. | No | Myriospora rhagadiza | 2455 | NE NR | ||||
| 7732 | Silobia rufescens | (Ach.) M. Westb. & Wedin | No | Myriospora rufescens | 21 | LC | ||||
| 7733 | Silobia scabrida | (H. Magn.) M. Westb. | No | Myriospora scabrida | 31 | DD NR | ||||
| 7734 | Silobia smaragdula | (Wahlenb.) M. Westb. & Wedin | No | Myriospora smaragdula | 25 | LC | ||||
| 7735 | Silobia tangerina | M. West. & Wedin (2011) | No | Myriospora tangerina | 2674 | NE NR | ||||
| 7736 | Siphula ceratites | (Wahlenb.) Fr. (1831) | Yes | Siphula ceratites | 1323 | NT NR Sc | Siphula ceratites | |||
| 7737 | Sirococcus lichenicola | Keissl. | No | Bachmanniomyces punctum | 2016 | LC NS | LF | |||
| 7738 | Sirosiphon compactus | (Agardh) Kütz. | No | Scytonema | non-lichenized Scytonema sp. {cyanobacterium} | CBM | ||||
| 7739 | Sirothecium lichenicola | (Linds.) Keissl. | No | Vouauxiella lichenicola | 2261 | LC | LF | |||
| 7740 | Skyttea buelliae | Sherwood, D. Hawksw. & Coppins (1981) | Yes | Skyttea buelliae | 2204 | lichenicolous on Amandinea punctata | NE NR | LF | Skyttea buelliae |