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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 8491 | Usnea laricina | auct., ? non Vain. ex Räsänen | No | Usnea glabrescens | 1467 | LC NS | ||||
| 8492 | Usnea madeirensis | Motyka | No | Usnea silesiaca | 1818 | VU D2 NR Sc | ||||
| 8493 | Usnea mollis | Stirt. (1881) nom. illegit. | No | Usnea fragilescens | 1817 | LC | ||||
| 8494 | Usnea monstruosa | auct. brit., non Vain. | No | Usnea dasopoga | 1460 | LC | ||||
| 8495 | Usnea muricata | Motyka | No | Usnea dasopoga | 1460 | LC | ||||
| 8496 | Usnea pendulina | Motyka | No | incorrectly reported from the British Isles | ||||||
| 8497 | Usnea perplexans | Stirt. (1881) | Yes | Usnea perplexans | 2742 | NE NR | ||||
| 8498 | Usnea plicata | auct. brit. p.p. | No | Usnea ceratina | 1458 | LC Sc | ||||
| 8499 | Usnea plicata | auct. brit. p.p. | No | Usnea rubicunda | 1470 | LC | ||||
| 8500 | Usnea plicata var. comosa | (Ach.) Ach. | No | Usnea subfloridana | 1471 | LC | ||||
| 8501 | Usnea praetervisa | (Asahina) P. Clerc (2004) | Yes | Usnea praetervisa | 2743 | NE NR | ||||
| 8502 | Usnea protensa | Stirt. | No | Usnea rubicunda | 1470 | LC | ||||
| 8503 | Usnea rubicunda | Stirt. (1881) | Yes | Usnea rubicunda | Usnea rubiginea Usnea rubiginosa |
1470 | LC | Usnea rubicunda | ||
| 8504 | Usnea rubiginea | auct. brit., non (Michx.) A. Massal. | No | Usnea rubicunda | 1470 | LC | ||||
| 8505 | Usnea rubiginosa | auct. | No | Usnea rubicunda | 1470 | LC | ||||
| 8506 | Usnea rupestris | Motyka | No | Usnea flammea | 1461 | LC | ||||
| 8507 | Usnea scabrata | Nyl. | No | incorrectly reported from the British Isles | ||||||
| 8508 | Usnea silesiaca | Motyka (1930) | Yes | Usnea silesiaca | Usnea madeirensis | 1818 | VU D2 NR Sc | Usnea silesiaca | ||
| 8509 | Usnea sorediifera var. laricina | auct., ? non (Vain. ex Räsänen) Keissl. | No | Usnea glabrescens | 1467 | LC NS | ||||
| 8510 | Usnea sp. | No | 1579 | BLS number no longer used | ||||||
| 8511 | Usnea subfloridana | auct. brit. p.p. pre-1992 | No | Usnea wasmuthii | 1640 | name or specific epithet valid but has been misused in the past | LC NS | |||
| 8512 | Usnea subfloridana | Stirt. (1882) | Yes | Usnea subfloridana | Usnea comosa | 1471 | LC | Usnea subfloridana | ||
| 8513 | Usnea sublurida | Stirt. | No | Usnea rubicunda | 1470 | LC | ||||
| 8514 | Usnea subpectinata | Stirt. (1881) | Yes | Usnea subpectinata | 2856 | a member of Usnea cornuta group | NE | Usnea subpectinata | ||
| 8515 | Usnea subscabrosa | Motyka (1937) | Yes | Usnea subscabrosa | 1908 | VU D2 NR | Usnea subscabrosa | |||
| 8516 | Usnea wasmuthii | Räsänen (1932) | Yes | Usnea wasmuthii | Usnea subfloridana | 1640 | LC NS | Usnea wasmuthii | ||
| 8517 | Usnea wirthii | P. Clerc | No | Usnea flavocardia | 1731 | DD NR Sc | ||||
| 8518 | Vahliella atlantica | (P.M. Jørg. & P. James) P.M. Jørg. (2008) | Yes | Vahliella atlantica | Fuscopannaria atlantica | 2432 | LC NR Sc | Vahliella atlantica | ||
| 8519 | Vahliella leucophaea | (Vahl) P.M. Jørg. (2008) | Yes | Vahliella leucophaea | Fuscopannaria leucophaea Pannaria leucophaea Pannaria microphylla Pannaria microphylla var. cheilea |
977 | LC | Vahliella leucophaea | ||
| 8520 | Vandenboomia chlorotiza | (Nyl.) S.Y Kondr. (2019) | No | Lecania chlorotiza | 307 | NT NS P Eng Sc Wa IR |