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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 181 | Alectoria ochroleuca f. tenuior | Cromb. | No | Alectoria sarmentosa subsp. vexillifera | 42 | LC NS | ||||
| 182 | Alectoria ochroleuca var. cincinnata | (Fr.) Nyl. | No | Alectoria sarmentosa subsp. vexillifera | 42 | LC NS | ||||
| 183 | Alectoria positiva | (Gyeln.) Motyka | No | Bryoria fuscescens | 193 | |||||
| 184 | Alectoria prolixa | auct. brit. | No | Bryoria sp. | Bryoria fuscescens or Bryoria subcana | |||||
| 185 | Alectoria pubescens | (L.) R. Howe | No | Pseudephebe pubescens | 1191 | LC | ||||
| 186 | Alectoria pubescens f. subciliata | (Nyl.) D. Hawksw. | No | Pseudephebe pubescens | 1191 | LC | ||||
| 187 | Alectoria pubescens var. reticulata | (Cromb.) A.E. Wade (1959) | No | Pseudephebe pubescens | 1191 | LC | ||||
| 188 | Alectoria sarmentosa subsp. sarmentosa | (Ach.) Ach. (1810) | Yes | Alectoria sarmentosa subsp. sarmentosa | Alectoria sarmentosa | 41 | NT NS | Alectoria sarmentosa subsp. sarmentosa | ||
| 189 | Alectoria sarmentosa subsp. vexillifera | (Nyl.) D. Hawksw. (1970) | Yes | Alectoria sarmentosa subsp. vexillifera | Alectoria ochroleuca auct. p.p. Alectoria ochroleuca var. cincinnata Alectoria vexillifera |
42 | Often mistakenly reported as A. ochroleuca, especially outside the Cairngorm Region | LC NS | Alectoria sarmentosa subsp. vexillifera | |
| 190 | Alectoria sarmentosa var. cincinnata | (Fr.) Nyl. | No | Alectoria sarmentosa subsp. vexillifera | 42 | LC NS | ||||
| 191 | Alectoria smithii | Du Rietz | No | Bryoria smithii | 198 | CR B NR P Eng Sc Wa | ||||
| 192 | Alectoria subcana | (Nyl. ex Stizenb.) Gyeln. | No | Bryoria subcana | 199 | LC | ||||
| 193 | Alectoria thrausta | auct. brit. non Ach. | No | Ramalina chondrina | 1696 | VU D2 NR | ||||
| 194 | Alectoria trichodes | auct. brit. | No | Bryoria implexa | 197 | Ex | ||||
| 195 | Alectoria vexillifera | (Nyl.) Stizenb. | No | Alectoria sarmentosa subsp. vexillifera | 42 | LC NS | ||||
| 196 | Alectoria vrangiana | Gyeln. | No | Bryoria vrangiana | Bryoria vrangiana (Gyeln.) Brodo & D. Hawksw., incorrectly reported from the British Isles | |||||
| 197 | Allantoparmelia alpicola | (Th. Fr.) Essl. (1978) | Yes | Allantoparmelia alpicola | Parmelia alpicola | 43 | LC NS | Allantoparmelia alpicola | ||
| 198 | Allarthonia lapidicola | (Taylor) Zahlbr. | No | Bryostigma lapidicola | 1700 | name usually applied to what is now Arthonia fusca | LC NS | |||
| 199 | Allarthonia lapidicola | sensu auct. brit. | No | Arthonia fusca | 64 | LC | ||||
| 200 | Allarthonia patellulata | auct. brit. p.p. | No | Arthonia didyma | 56 | LC | ||||
| 201 | Allarthonia patellulata | auct. brit. p.p. | No | Bryostigma lapidicola | 1700 | |||||
| 202 | Allarthonia phaeobaea | (Norman) Zahlbr. | No | Arthonia phaeobaea | 67 | LC NS | ||||
| 203 | Alloarthopyrenia italica | Pukhams., Comporesi, Ariyaw & K.D. Hyde (2016) | Yes | Alloarthopyrenia italica | Arthopyrenia cinereopruinosa auct. p.p. | 82 | LC | F | Alloarthopyrenia italica | |
| 204 | Allographa anomala | (Leight.) Aptroot & Weerakoon (2023) | Yes | Allographa anomala | Graphina ruiziana auct. brit.; Graphis ruiziana auct. brit. | 531 | LC NS Sc IR | Allographa anomala | ||
| 205 | Allographa pauciloculata | (Coppins & P. James) Aptroot & Weerakoon (2023) | Yes | Allographa pauciloculata | Graphina pauciloculata | 530 | VU D2 NR E P Eng Wa IR | Allographa pauciloculata | ||
| 206 | Allographa ruiziana | (Fée) Lücking & Kalb (2018) | No | incorrectly reported from GBI; records refer to Allographa anomala | LC NS Sc IR | |||||
| 207 | Alysphaeria candelaris | (L.) Turpin | No | Chrysothrix candelaris | 354 | LC | ||||
| 208 | Alyxoria culmigena | (Lib.) Ertz (2012) | Yes | Alyxoria culmigena | Opegrapha betulina; Opegrapha herbarum | 948 | LC | Alyxoria culmigena | ||
| 209 | Alyxoria diaphora | (Ach.) Gray (1821) | No | Alyxoria varia | 964 | LC | ||||
| 210 | Alyxoria mougeotii | (A. Massal.) Ertz, Frisch & G. Thor (2014) | Yes | Alyxoria mougeotii | Opegrapha mougeotii | 952 | LC NS | Alyxoria mougeotii |