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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6001 | Parmelia hyperopta | Ach. | No | Parmeliopsis hyperopta | 1035 | LC | ||||
| 6002 | Parmelia incurva | (Pers.) Fr. | No | Arctoparmelia incurva | 1000 | LC | ||||
| 6003 | Parmelia intestiniformis | (Vill.) Ach. | No | Brodoa intestiniformis | 581 | CR B, D NR S Sc | ||||
| 6004 | Parmelia isidioides | Borrer | No | Rinodina isidioides | 1291 | NT NS P Eng Sc Wa IR | ||||
| 6005 | Parmelia isidiotyla | Nyl., non auct. brit. | No | Xanthoparmelia loxodes | 1003 | LC | ||||
| 6006 | Parmelia isidiotyla | auct. brit. | No | Xanthoparmelia verruculifera | 1026 | LC | ||||
| 6007 | Parmelia laciniatula | (Flagey ex H. Olivier) Zahlbr. (1916) | No | Melanohalea laciniatula | 1001 | LC | ||||
| 6008 | Parmelia laevigata | (Sm.) Ach. | No | Hypotrachyna laevigata | 1002 | LC | ||||
| 6009 | Parmelia lanata var. parmelioides | Cromb. | No | Pseudephebe pubescens | 1191 | LC | ||||
| 6010 | Parmelia lanata var. reticulata | Cromb. (1894) | No | Pseudephebe pubescens | 1191 | LC | ||||
| 6011 | Parmelia lanata var. subciliata | Nyl. | No | Pseudephebe pubescens | 1191 | LC | ||||
| 6012 | Parmelia loxodes | Nyl. | No | Xanthoparmelia loxodes | 1003 | LC | ||||
| 6013 | Parmelia luteonotata | J. Steiner | No | Xanthoparmelia luteonotata | 2343 | DD NR | ||||
| 6014 | Parmelia macmillana | Stirt. | No | Hypotrachyna endochlora | 994 | LC NS Sc IR | ||||
| 6015 | Parmelia maxima | Hue | No | Parmotrema stuppeum | Parmotrema stuppeum (Taylor) Hale, incorrectly reported from the British Isles | |||||
| 6016 | Parmelia mcmillana | Stirt. [orth. var.] | No | Hypotrachyna endochlora | 994 | LC NS Sc IR | ||||
| 6017 | Parmelia microthelia | Ach. (1803) | No | Gyalolechia flavorubescens | 254 | EN A NS P Eng Sc Wa | ||||
| 6018 | Parmelia minarum | Vain. (1890) | No | Hypotrachyna minarum | 1004 | LC NS S8 | ||||
| 6019 | Parmelia minuscula | auct. brit., non (Nyl. ex Arnold) Nyl. | No | Pseudephebe pubescens | 1191 | LC | ||||
| 6020 | Parmelia mougeotii | Schaer. ex D. Dietr. | No | Xanthoparmelia mougeotii | 1005 | LC | ||||
| 6021 | Parmelia multifida | auct. | No | Arctoparmelia incurva | 1000 | LC | ||||
| 6022 | Parmelia murorum | auct. brit. p.p. | No | Variospora flavescens | 259 | LC | ||||
| 6023 | Parmelia negata | Nyl. | No | Punctelia negata | Punctelia negata (Nyl.) Krog, incorrectly reported from the British Isles | |||||
| 6024 | Parmelia olivacea | auct. brit. p.max.p. | No | Melanelixia glabratula | 997 | LC | ||||
| 6025 | Parmelia olivacea | auct. brit. p.min.p. | No | Melanohalea septentrionalis | 1016 | LC NS | ||||
| 6026 | Parmelia olivacea | auct. brit. p.min.p. | No | Xanthoparmelia pulla | 1009 | Xanthoparmelia pulla s.lat. | LC | |||
| 6027 | Parmelia olivacea var. aspera | (A. Massal.) ?? | No | Melanohalea exasperata | 995 | LC | ||||
| 6028 | Parmelia olivacea var. dendritica | (Pers.) Leight. | No | Xanthoparmelia pulla | 1009 | LC | ||||
| 6029 | Parmelia olivacea var. fuliginosa | Fr. ex Duby | No | Melanelixia fuliginosa | 998 | LC | ||||
| 6030 | Parmelia olivacea var. furfuracea | sensu Mudd | No | Melanelixia fuliginosa | 998 | Records may include Melanelixia glabratula | LC |