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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 8431 | Usnea barbata | auct. brit. p.max.p. | No | Usnea dasopoga | 1460 | LC | ||||
| 8432 | Usnea barbata var. articulata | (L.) Ach. | No | Usnea articulata | 1456 | NT P Eng Wa IR | ||||
| 8433 | Usnea barbata var. florida | (L.) Fr. | No | Usnea florida | 1462 | Pre c. 1960 usage probably includes other species, esp. U. subfloridana | NT ? P Eng Sc Wa | |||
| 8434 | Usnea barbata var. plicata | auct. brit. p.p. | No | Usnea ceratina | 1458 | LC Sc | ||||
| 8435 | Usnea cavernosa | Tuck. | No | 1457 | incorrectly reported from the British Isles, BLS number no longer used | |||||
| 8436 | Usnea ceratina | Ach. (1810) | Yes | Usnea ceratina | 1458 | LC Sc | Usnea ceratina | |||
| 8437 | Usnea ceratina var. incurvescens | (Arnold) H. Olivier, non auct. brit. p.p. | No | Usnea ceratina | 1458 | LC Sc | ||||
| 8438 | Usnea ceratina var. incurvescens | auct. brit. p.p., non (Arnold) H. Olivier | No | Usnea cornuta s. lat. | 1469 | LC | ||||
| 8439 | Usnea ceratina var. scabrosa | sensu Cromb., ? non Ach. | No | Usnea flammea | 1461 | LC | ||||
| 8440 | Usnea chaetophora | auct. p.p. | No | Usnea barbata | 2741 | NE NR | ||||
| 8441 | Usnea chaetophora | Stirt. (1883) | No | Usnea dasopoga | 1460 | No longer in use, the BLS code number 1459 was used for this name | LC | |||
| 8442 | Usnea comosa | (Ach.) Vain. | No | Usnea subfloridana | 1471 | LC | ||||
| 8443 | Usnea comosa var. similis | (Motyka) Erichsen | No | Usnea subfloridana | 1471 | LC | ||||
| 8444 | Usnea comosa var. sordidula | (Motyka) H. Magn. | No | Usnea subfloridana | 1471 | LC | ||||
| 8445 | Usnea compacta | auct. brit., non (Räsänen) Motyka | No | Usnea subfloridana | 1471 | LC | ||||
| 8446 | Usnea constrictula | Stirt. (1881) | No | Usnea cornuta s. lat. | 1469 | LC | ||||
| 8447 | Usnea cornuta s. lat. | Yes | Usnea cornuta s. lat. | Usnea ceratina var. incurvescens; Usnea inflata; Usnea intexta; Usnea intexta var. constrictula | 1469 | LC | Usnea cornuta s. lat. | |||
| 8448 | Usnea cornuta s. str. | Körb. (1865) | Yes | Usnea cornuta s. str. | 2855 | NE | ||||
| 8449 | Usnea dasaea | Stirt. (1881) | No | Usnea cornuta s. lat. | 1469 | LC | ||||
| 8450 | Usnea dasopoga | (Ach.) Nyl. (1876) | Yes | Usnea dasopoga | Usnea chaetophora; Usnea dasypoga; Usnea filipendula | 1460 | LC | Usnea dasopoga | ||
| 8451 | Usnea dasypoga | (Ach.) Nyl. (1876) [orth. error] | No | Usnea dasopoga | 1460 | LC | ||||
| 8452 | Usnea diplotypa | Vain. | No | incorrectly reported from the British Isles | ||||||
| 8453 | Usnea distincta | auct. brit., non Motyka | No | Usnea subfloridana | 1471 | LC | ||||
| 8454 | Usnea esperantiana | P. Clerc (1992) | Yes | Usnea esperantiana | Usnea fulvoreagens auct. p.p. | 1816 | NT NR Sc IR | Usnea esperantiana | ||
| 8455 | Usnea extensa | Vain. | No | Usnea glabrescens | 1467 | LC NS | ||||
| 8456 | Usnea fibrillosa | Motyka | No | Usnea dasopoga | 1460 | LC | ||||
| 8457 | Usnea filipendula | Stirt. | No | Usnea dasopoga | 1460 | LC | ||||
| 8458 | Usnea flammea | Stirt. (1881) | Yes | Usnea flammea | 1461 | LC | Usnea flammea | |||
| 8459 | Usnea flavocardia | Räsänen (1936) | Yes | Usnea flavocardia | Usnea wirthii | 1731 | DD NR Sc | Usnea flavocardia | ||
| 8460 | Usnea florida | (L.) F.H. Wigg. (1780) | Yes | Usnea florida | 1462 | NT ? P Eng Sc Wa | Usnea florida |