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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5251 | Marfloraea pulvinata | (Erichsen) S.Y. Kondr., L. Lökös & J.-S. Hur (2015) | No | Lepra pulvinata | 1090 | NE NR | ||||
| 5252 | Massalongia carnosa | (Dicks.) Körb. (1855) | Yes | Massalongia carnosa | Massalongia carnosa var. determinata | 861 | LC | Massalongia carnosa | ||
| 5253 | Massalongia carnosa var. determinata | (Nyl.) A.L. Sm. | No | Massalongia carnosa | 861 | LC | ||||
| 5254 | Massalongia cheilea | Mudd | No | Vahliella leucophaea | 977 | LC | ||||
| 5255 | Massjukiella candelaria | (L.) S.Y. Kondr. et al. (2012) | No | Polycauliona candelaria s. str. | 2364 | LC | ||||
| 5256 | Massjukiella polycarpa | (Hoffm.) S.Y. Kondr. et al. (2012) | No | Polycauliona polycarpa | 1531 | LC | ||||
| 5257 | Massjukiella ucrainica | (S.Y. Kondr.) S.Y. Kondr. et al. (2012) | No | Polycauliona ucrainica | 950 | LC | ||||
| 5258 | Megalaria grossa | (Pers. ex Nyl.) Hafellner (1984) | Yes | Megalaria grossa | Catillaria grossa Catinaria grossa |
323 | LC | Megalaria grossa | ||
| 5259 | Megalaria laureri | (Hepp ex Th. Fr.) Hafellner (1993) | Yes | Megalaria laureri | Catinaria laureri | 324 | EN D NR P Eng S8 IR | Megalaria laureri | ||
| 5260 | Megalaria pulverea | (Borrer) Hafellner & E. Schreiner (1992) | Yes | Megalaria pulverea | Catillaria pulverea | 318 | LC | Megalaria pulverea | ||
| 5261 | Megalospora fucata | (Stirt.) H. Olivier | No | Violella fucata | 908 | LC | ||||
| 5262 | Megalospora pachycarpa | (Delise ex Duby) H. Olivier | No | Megalospora tuberculosa | 862 | currently a synonym but may be adopted as the correct name in the future | NT NS P Eng Sc Wa IR | |||
| 5263 | Megalospora tuberculosa | (Fée) Sipman (1983) | Yes | Megalospora tuberculosa | Bombyliospora pachycarpa | 862 | NT NS P Eng Sc Wa IR | Megalospora tuberculosa | ||
| 5264 | Megaspora verrucosa | (Ach.) Arcadia & A. Nordin (2012) | Yes | Megaspora verrucosa | Aspicilia verrucosaLecanora verrucosaPachyospora verrucosa | 971 | NT NS | Megaspora verrucosa | ||
| 5265 | Melanaria lactescens | (Mudd) Erichsen | No | Pertusaria lactescens | 1078 | LC | ||||
| 5266 | Melanaria urceolaria | (Nyl.) Erichsen | No | Pertusaria lactescens | 1078 | LC | ||||
| 5267 | Melanelia acetabulum | (Neck.) Essl. | No | Pleurosticta acetabulum | 982 | LC | ||||
| 5268 | Melanelia commixta | (Nyl.) A. Thell | No | Cetrariella commixta | 328 | LC NS | ||||
| 5269 | Melanelia disjuncta | (Erichsen) Essl. (1978) | No | Montanelia disjuncta | 992 | LC NS | ||||
| 5270 | Melanelia elegantula | (Zahlbr.) Essl. | No | Melanohalea elegantula | 993 | LC | ||||
| 5271 | Melanelia exasperata | (De Not.) Essl. | No | Melanohalea exasperata | 995 | LC | ||||
| 5272 | Melanelia exasperatula | (Nyl.) Essl. | No | Melanohalea exasperatula | 996 | LC | ||||
| 5273 | Melanelia fuliginosa subsp. fuliginosa | (Fr. ex Duby) Essl. | No | Melanelixia fuliginosa | 998 | LC | ||||
| 5274 | Melanelia fuliginosa subsp. glabratula | (Lamy) J.R. Laundon | No | Melanelixia glabratula | 997 | LC | ||||
| 5275 | Melanelia glabratula | (Lamy) Essl. | No | Melanelixia glabratula | 997 | LC | ||||
| 5276 | Melanelia hepatizon | (Ach.) A. Thell (1995) | Yes | Melanelia hepatizon | Cetraria fahlunensis auct. p.p. Cetraria hepatizon |
332 | LC NS | Melanelia hepatizon | ||
| 5277 | Melanelia laciniatula | (Flagey ex H. Olivier) Essl. (1978) | No | Melanohalea laciniatula | 1001 | LC | ||||
| 5278 | Melanelia septentrionalis | (Lynge) Essl. | No | Melanohalea septentrionalis | 1016 | LC NS | ||||
| 5279 | Melanelia stygia | (L.) Essl. (1978) | Yes | Melanelia stygia | Parmelia stygia | 1019 | NT NS | Melanelia stygia | ||
| 5280 | Melanelia subargentifera | (Nyl.) Essl. | No | Melanelixia subargentifera | 1570 | CR B, C, D NR P Sc |