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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 8311 | Thelidium margaceum | Zschacke | No | ? Thelidium minutulum | ||||||
| 8312 | Thelidium marinum | (Deakin) Keissl. | No | Stigmidium marinum | 2229 | LC NR | LF | |||
| 8313 | Thelidium mesotropum | (Nyl.) A.L. Sm. | No | Thelidium minutulum | 1391 | LC | ||||
| 8314 | Thelidium methorium | (Nyl.) Hellb. (1875) | Yes | Thelidium methorium | Thelidium aeneovinosum | 1729 | DD NR | Thelidium methorium | ||
| 8315 | Thelidium microb | No | 1901 | BLS number no longer used | ||||||
| 8316 | Thelidium microbolum | (Tuck.) Hasse (1913) | No | Thelidium fontigenum | 1900 | LC NR Sc | ||||
| 8317 | Thelidium microcarpum | (Davies ex Leight.) A.L. Sm. | No | Thelidium zwackhii | 1392 | LC NS | ||||
| 8318 | Thelidium minimum | (A. Massal.) Arnold | No | incorrectly reported from the British Isles | ||||||
| 8319 | Thelidium minutulum | Körb. (1863) | Yes | Thelidium minutulum | Thelidium cataractarum auct. p.p. Thelidium mesotropum |
1391 | LC | Thelidium minutulum | ||
| 8320 | Thelidium nylanderi | (Hepp) Lönnr. | No | Collemopsidium caesium | 79 | NT NR Sc | ||||
| 8321 | Thelidium papulare f. papulare | (Fr.) Arnold (1885) | Yes | Thelidium papulare f. papulare | 1394 | LC | Thelidium papulare f. papulare | |||
| 8322 | Thelidium papulare f. sorediatum | Coppins (1991) | Yes | Thelidium papulare f. sorediatum | 1811 | LC NR Sc | Thelidium papulare f. sorediatum | |||
| 8323 | Thelidium parvulum | Arnold, non auct. brit. | No | Thelidium minutulum | 1391 | LC | ||||
| 8324 | Thelidium parvulum | auct. brit. | No | Verrucaria bryoctona | 1539 | LC NS | ||||
| 8325 | Thelidium pluvium | Orange (1991) | Yes | Thelidium pluvium | 1812 | LC NS | Thelidium pluvium | |||
| 8326 | Thelidium pyrenophorum | (Ach.) Körb. (1855) | Yes | Thelidium pyrenophorum | 1395 | LC NS | Thelidium pyrenophorum | |||
| 8327 | Thelidium rehmii | Zschacke (1921) | Yes | Thelidium rehmii | 2652 | NE NR | Thelidium rehmii | |||
| 8328 | Thelidium salweii | (Leight. ex Nyl.) Mudd [orth. error] | No | Acrocordia salweyi | 36 | LC | ||||
| 8329 | Thelidium salweyi | (Leight. ex Nyl.) Mudd | No | Acrocordia salweyi | 36 | LC | ||||
| 8330 | Thelidium sparsulum | (Nyl.) A.L. Sm. | No | Thelidium zwackhii | 1392 | LC NS | ||||
| 8331 | Thelidium subgelatinosum | Zschacke | No | Thelidium zwackhii | 1392 | LC NS | ||||
| 8332 | Thelidium submethorium | (Vain.) Zschacke (1920) | Yes | Thelidium submethorium | 2811 | NE NR | Thelidium submethorium | |||
| 8333 | Thelidium subrimulatum | auct. brit. | No | Thelidium pyrenophorum | 1395 | LC NS | ||||
| 8334 | Thelidium terrestre | Walt. Watson | No | Thelidium minutulum | 1391 | LC | ||||
| 8335 | Thelidium viride | (Deakin) Zahlbr. | No | ? Thelidium pyrenophorum | ||||||
| 8336 | Thelidium zwackhii | (Hepp) A. Massal. (1855) | Yes | Thelidium zwackhii | Thelidium cataractarum auct. p.p. Thelidium microcarpum Thelidium subgelatinosum |
1392 | LC NS | Thelidium zwackhii | ||
| 8337 | Thelignya lacustris | (Nyl.) M. Schultz & M. Prieto (2024) | Yes | Thelignya lacustris | Pterygiopsis lacustris | 1797 | NT NR Sc | Thelignya lacustris | ||
| 8338 | Thelocarpon actonii | P.F. Cannon &Coppins (2025 | Yes | Thelocarpon actonii | 2911 | NE NR | ||||
| 8339 | Thelocarpon coccosporum | Lettau (1955) | Yes | Thelocarpon coccosporum | 2537 | LC NR | Thelocarpon coccosporum | |||
| 8340 | Thelocarpon epibolum s. lat. | s. lat. | Yes | Thelocarpon epibolum s. lat. | 1398 | Thelocarpon epibolum s. lat. |