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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 7651 | Scytinium teretiusculum | (Wallr.) Otálora, P.M. Jørg. & Wedin (2013) | Yes | Scytinium teretiusculum | Leptogium microscopicum; Leptogium teretiusculum | 848 | LC | Scytinium teretiusculum | ||
| 7652 | Scytinium turgidum | (Ach.) Otálora, P.M. Jørg. & Wedin (2013) | Yes | Scytinium turgidum | Leptogium turgidum | 849 | LC | Scytinium turgidum | ||
| 7653 | Scytonema atrovirens | (Dillwyn) C. Agardh | No | Ephebe lanata | 509 | LC | ||||
| 7654 | Scytonema interruptum | (Carmich. ex Hook.) Cooke, comb. inval., p.p. | No | Dictyonema coppinsii | 488 | DD NR Sc | ||||
| 7655 | Secoliga cupularis | (Hedw.) Norman (1852) | No | Secoliga jenensis | 539 | LC | ||||
| 7656 | Secoliga jenensis | (Batsch) P.F. Cannon (2024) | Yes | Secoliga jenensis | Gyalecta jenensis var. jenensis | 539 | LC | |||
| 7657 | Secologia macrospora | (Vězda) P.F. Cannon (2024) | Yes | Secologia macrospora | Gyalecta jenensis var. macrospora | 540 | DD NR | |||
| 7658 | Segestrella lectissima | (Fr.) Mudd | No | Porina lectissima | 1180 | LC | ||||
| 7659 | Segestrella thelostoma | (Ach. ex J. Harriman) Fr. (1845) | No | Pyrenocarpon thelostomum | 1813 | DD NR | ||||
| 7660 | Segestria byssophila | (Körb. ex Hepp) Zahlbr. (1898) | No | Porina byssophila | 1614 | DD NR Sc | ||||
| 7661 | Segestria lectissima | Fr. | No | Porina lectissima | 1180 | LC | ||||
| 7662 | Segestria leptalea | (Durieu & Mont.) R.C. Harris | No | Porina leptalea | 1181 | LC | ||||
| 7663 | Segestria mammillosa | Th. Fr. | No | Porina mammillosa | 1183 | NT NR Sc | ||||
| 7664 | Silobia dilatata | M. Westb. & Wedin | No | Myriospora dilatata | 2611 | NE | ||||
| 7665 | Silobia rhagadiza | (Nyl.) M. Westb. | No | Myriospora rhagadiza | 2455 | NE NR | ||||
| 7666 | Silobia rufescens | (Ach.) M. Westb. & Wedin | No | Myriospora rufescens | 21 | LC | ||||
| 7667 | Silobia scabrida | (H. Magn.) M. Westb. | No | Myriospora scabrida | 31 | DD NR | ||||
| 7668 | Silobia smaragdula | (Wahlenb.) M. Westb. & Wedin | No | Myriospora smaragdula | 25 | LC | ||||
| 7669 | Silobia tangerina | M. West. & Wedin (2011) | No | Myriospora tangerina | 2674 | NE NR | ||||
| 7670 | Siphula ceratites | (Wahlenb.) Fr. (1831) | Yes | Siphula ceratites | 1323 | NT NR Sc | Siphula ceratites | |||
| 7671 | Sirococcus lichenicola | Keissl. | No | Bachmanniomyces punctum | 2016 | LC NS | LF | |||
| 7672 | Sirosiphon compactus | (Agardh) Kütz. | No | Scytonema | non-lichenized Scytonema sp. {cyanobacterium} | CBM | ||||
| 7673 | Sirothecium lichenicola | (Linds.) Keissl. | No | Vouauxiella lichenicola | 2261 | LC | LF | |||
| 7674 | Skyttea buelliae | Sherwood, D. Hawksw. & Coppins (1981) | Yes | Skyttea buelliae | 2204 | lichenicolous on Amandinea punctata | NE NR | LF | Skyttea buelliae | |
| 7675 | Skyttea caesii | Diederich & Etayo (2000) | Yes | Skyttea caesii | Skyttea fusispora auct. brit. | 2207 | lichenicolous Mycoblastus caesius | LC NR | LF | Skyttea caesii |
| 7676 | Skyttea cruciata | Sherwood, D. Hawksw. & Coppins | No | Rhymbocarpus cruciatus | 2205 | NE NR | LF | |||
| 7677 | Skyttea elachistophora | (Nyl.) Sherwood & D. Hawksw. (1981) | Yes | Skyttea elachistophora | Rhymbocarpus elachistophorus | 2206 | Lichenicolous on sterile host (? Herteliana gagei or Tylothalla biformigera) | LF | Skyttea elachistophora | |
| 7678 | Skyttea fusispora | auct. brit. | No | Skyttea caesii | 2207 | LC NR | LF | |||
| 7679 | Skyttea gregaria | Sherwood, D. Hawksw. & Coppins (1981) | Yes | Skyttea gregaria | Rhymbocarpus gregarius | 2208 | lichenicolous on Violella fucata | LC | LF | Skyttea gregaria |
| 7680 | Skyttea lecanorae | Diederich & Etayo (2000) | Yes | Skyttea lecanorae | 2301 | lichenicolous on Lecanora chlarotera group | LC NS | LF | Skyttea lecanorae |