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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6091 | Parmelia saxatilis var. leucochroa | Wallr. | No | Parmelia sulcata | 1022 | LC | ||||
| 6092 | Parmelia saxatilis var. panniformis | auct. brit. | No | Parmelia saxatilis s. lat. | 1015 | LC | ||||
| 6093 | Parmelia saxicola var. areolata | Leight. nom. inval. | No | Protoparmeliopsis muralis | 661 | LC | ||||
| 6094 | Parmelia scortea | (Ach.) Ach. | No | Parmelina tiliacea | 1024 | LC | ||||
| 6095 | Parmelia septentrionalis | (Lynge) Ahti | No | Melanohalea septentrionalis | 1016 | LC NS | ||||
| 6096 | 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 | Parmelia serrana | ||
| 6097 | Parmelia sinuosa | (Sm.) Ach. | No | Hypotrachyna sinuosa | 1017 | LC Sc IR | ||||
| 6098 | Parmelia sinuosa var. excentrica | Mudd | No | Hypotrachyna revoluta s. lat. | 1013 | |||||
| 6099 | Parmelia soredians | Nyl. | No | Flavoparmelia soredians | 1018 | LC Sc | ||||
| 6100 | Parmelia sorediata | auct. brit. | No | Montanelia disjuncta | 992 | LC NS | ||||
| 6101 | Parmelia sorediosa | auct. brit. | No | Montanelia disjuncta | 992 | LC NS | ||||
| 6102 | Parmelia speciosa | auct. brit. | No | Heterodermia obscurata | 560 | |||||
| 6103 | Parmelia squarrosa | Hale (1971) | Parmelia squarrosa | Presence in GBI needs confirmation | ||||||
| 6104 | Parmelia stellaris | auct. brit. p.p. | No | Physcia aipolia | 1113 | LC | ||||
| 6105 | Parmelia stellaris | (L.) Ach. | No | Physcia stellaris | 1119 | LC | ||||
| 6106 | Parmelia stenophylla | auct. brit., non (Ach.) Heugel | No | Xanthoparmelia conspersa | 988 | LC | ||||
| 6107 | Parmelia stuppea | Taylor | No | Parmotrema stuppeum | Parmotrema stuppeum (Taylor) Hale, incorrectly reported from the British Isles | |||||
| 6108 | Parmelia stygia | (L.) Ach. | No | Melanelia stygia | 1019 | NT NS | ||||
| 6109 | Parmelia subargentifera | Nyl. | No | Melanelixia subargentifera | 1570 | CR B, C, D NR P Sc | ||||
| 6110 | Parmelia subarnoldii | auct. brit., non Abbayes | No | Parmotrema arnoldii | 984 | NT NS Sc | ||||
| 6111 | Parmelia subaurifera | Nyl. | No | Melanelixia subaurifera | 1020 | LC | ||||
| 6112 | Parmelia submontana | Nádv. ex Hale (1987) | Yes | Parmelia submontana | 1785 | DD NR Sc | Parmelia submontana | |||
| 6113 | Parmelia subrudecta | auct. brit. p.p. pre-2000 | No | Punctelia jeckeri | 1989 | name or specific epithet valid but has been misused in the past | LC | |||
| 6114 | Parmelia subrudecta | Nyl. | No | Punctelia subrudecta | 1021 | |||||
| 6115 | Parmelia substygia | auct. brit. | No | Montanelia disjuncta | 992 | LC NS | ||||
| 6116 | Parmelia sulcata | Taylor (1836) | Yes | Parmelia sulcata | 1022 | LC | Parmelia sulcata | |||
| 6117 | Parmelia sulcata var. laevis | Nyl. | No | Parmelia sulcata | 1022 | LC | ||||
| 6118 | Parmelia taractica | auct. brit. | No | Xanthoparmelia conspersa | 988 | LC | ||||
| 6119 | Parmelia taractica | auct. sed non auct. brit. | No | Xanthoparmelia somloënsis | Xanthoparmelia somloensis (Gyeln.) Hale, incorrectly reported from the British Isles | |||||
| 6120 | Parmelia taractica | Kremp. | No | Xanthoparmelia taractica | Xanthoparmelia taractica (Kremp.) Hale, incorrectly reported from the British Isles |