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 revoluta | auct. p.p. | No | Hypotrachyna afrorevoluta | 2468 | name or specific epithet valid but has been misused in the past | LC | |||
| 6002 | Parmelia revoluta | Flörke | No | Hypotrachyna revoluta s. str. | 2577 | LC | ||||
| 6003 | Parmelia revoluta var. concentrica | (Arnold) Cromb. | No | Hypotrachyna revoluta s. lat. | 1013 | |||||
| 6004 | Parmelia revoluta var. erratica | (Linds.) Zahlbr. | No | Hypotrachyna revoluta s. lat. | 1013 | |||||
| 6005 | Parmelia revoluta var. rugosa | Cromb. | No | Hypotrachyna taylorensis | 1023 | LC Sc IR | ||||
| 6006 | Parmelia robusta | Degel. | No | Parmotrema robustum | 1014 | CR D NR P Eng Wa | ||||
| 6007 | Parmelia rugosa | Taylor, non Fr. | No | Hypotrachyna taylorensis | 1023 | LC Sc IR | ||||
| 6008 | Parmelia saturnina | (Dicks.) Ach. (1803) | No | Leptogium saturninum | 844 | VU C2 NS P Eng Sc | ||||
| 6009 | Parmelia saxatilis f. glomulifera | Cromb. | No | Parmelia omphalodes | 1006 | LC | ||||
| 6010 | Parmelia saxatilis s. lat. | s. lat. | Yes | Parmelia saxatilis s. lat. | Parmelia saxatilis var. aizoni; Parmelia saxatillis var. furfuracea; Parmelia saxatilis var. panniformis | 1015 | LC | Parmelia saxatilis s. lat. | ||
| 6011 | Parmelia saxatilis s. str. | (L.) Ach. s. str. (1803) | Yes | Parmelia saxatilis s. str. | 2677 | Requires DNA analysis for certain identification | NE | Parmelia saxatilis s. str. | ||
| 6012 | Parmelia saxatilis var. aizonii | Delise ex Duby | No | Parmelia saxatilis s. lat. | 1015 | LC | ||||
| 6013 | Parmelia saxatilis var. furfuracea | (Schaer.) Linds. | No | Parmelia saxatilis s. lat. | 1015 | LC | ||||
| 6014 | Parmelia saxatilis var. leucochroa | Wallr. | No | Parmelia sulcata | 1022 | LC | ||||
| 6015 | Parmelia saxatilis var. panniformis | auct. brit. | No | Parmelia saxatilis s. lat. | 1015 | LC | ||||
| 6016 | Parmelia saxicola var. areolata | Leight. nom. inval. | No | Protoparmeliopsis muralis | 661 | LC | ||||
| 6017 | Parmelia scortea | (Ach.) Ach. | No | Parmelina tiliacea | 1024 | LC | ||||
| 6018 | Parmelia septentrionalis | (Lynge) Ahti | No | Melanohalea septentrionalis | 1016 | LC NS | ||||
| 6019 | Parmelia serrana | A. Crespo, M.C. Molina & D. Hawksw. (2004) | Yes | Parmelia serrana | 2678 | a member of the Parmelia saxatilis agg., requiring DNA analysis for certain identification | NE | |||
| 6020 | Parmelia sinuosa | (Sm.) Ach. | No | Hypotrachyna sinuosa | 1017 | LC Sc IR | ||||
| 6021 | Parmelia sinuosa var. excentrica | Mudd | No | Hypotrachyna revoluta s. lat. | 1013 | |||||
| 6022 | Parmelia soredians | Nyl. | No | Flavoparmelia soredians | 1018 | LC Sc | ||||
| 6023 | Parmelia sorediata | auct. brit. | No | Montanelia disjuncta | 992 | LC NS | ||||
| 6024 | Parmelia sorediosa | auct. brit. | No | Montanelia disjuncta | 992 | LC NS | ||||
| 6025 | Parmelia speciosa | auct. brit. | No | Heterodermia obscurata | 560 | |||||
| 6026 | Parmelia stellaris | auct. brit. p.p. | No | Physcia aipolia | 1113 | LC | ||||
| 6027 | Parmelia stellaris | (L.) Ach. | No | Physcia stellaris | 1119 | LC | ||||
| 6028 | Parmelia stenophylla | auct. brit., non (Ach.) Heugel | No | Xanthoparmelia conspersa | 988 | LC | ||||
| 6029 | Parmelia stuppea | Taylor | No | Parmotrema stuppeum | Parmotrema stuppeum (Taylor) Hale, incorrectly reported from the British Isles | |||||
| 6030 | Parmelia stygia | (L.) Ach. | No | Melanelia stygia | 1019 | NT NS |