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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 9001 | Wadeana minuta | Coppins & P. James (1978) | Yes | Wadeana minuta | 1525 | NT NS P Eng Sc IR | Wadeana minuta | |||
| 9002 | Wahlenbergiella mucosa | (Wahlenb.) Gueidan & Thüs (2009) | Yes | Wahlenbergiella mucosa | Verrucaria mucosa | 1506 | LC | Wahlenbergiella mucosa | ||
| 9003 | Wahlenbergiella striatula | (Wahlenb.) Gueidan & Thüs (2009) | Yes | Wahlenbergiella striatula | Verrucaria striatula | 1517 | LC | Wahlenbergiella striatula | ||
| 9004 | Watsoniomyces obsoletus | (Nyl.) D. Hawksw., M. Powell & T. Sprib. (2021) | Yes | Watsoniomyces obsoletus | Lecidea lichenicola auct.; Lecidea watsonii | 740 | LC NS ?E IR | Watsoniomyces obsoletus | ||
| 9005 | Weddellomyces aspiciliicola | Alstrup (1992) | Yes | Weddellomyces aspiciliicola | 2812 | parasitic on Aspicilia | NE NR | LF | Weddellomyces aspiciliicola | |
| 9006 | Weddellomyces epicallopisma | (Wedd.) D. Hawksw. (1986) | Yes | Weddellomyces epicallopisma | Phaeospora epicallopisma | 2267 | LC NS | LF | Weddellomyces epicallopisma | |
| 9007 | Weddellomyces epicallopismum | (Wedd.) D. Hawksw. [orth. error] | No | Weddellomyces epicallopisma | 2267 | LC NS | LF | |||
| 9008 | Weddellomyces macrosporus | D. Hawksw., Renob. & Coppins (1990) | Yes | Weddellomyces macrosporus | 2268 | NE NR | LF | Weddellomyces macrosporus | ||
| 9009 | Weddellomyces peripherica | (Taylor) Alstrup & D. Hawksw. [orth. error] | No | Weddellomyces periphericus | 2269 | LF | ||||
| 9010 | Weddellomyces periphericus | (Taylor) Alstrup & D. Hawksw. (1990) | Yes | Weddellomyces periphericus | Pleospora peripherica | 2269 | LF | Weddellomyces periphericus | ||
| 9011 | Wentiomyces lichenicola subsp. bouteillei | sensu auct. brit. | No | Neocoleroa inundata | 2847 | NE NR | LF | |||
| 9012 | Wentiomyces lichenicola subsp. bouteillei | Bricaud, Cl. Roux & Sérus. (1994) | No | Wentiomyces lichenicola subsp. bouteillei | incorrectly reported from GB&I. BLS No. 2270 deprecated | LF | ||||
| 9013 | Wentiomyces peltigericola | D. Hawksw. | No | Raciborskiomyces peltigericola | 2271 | NE NR | LF | |||
| 9014 | Winfrenatia reticulata | T.N. Taylor, Hass & Kerp | No | fossil lichen from Rhynie Chert! | ||||||
| 9015 | Woessia arnoldiana | (Körb.) Sérus. & Diederich (1998) | No | Bacidina arnoldiana | 132 | LC | ||||
| 9016 | Woessia caligans | (Nyl.) Sérus. & Diederich (1998) | No | Bacidina caligans | 137 | LC NS | ||||
| 9017 | Woessia delicata | (Larbal. ex Leight.) Sérus. & Diederich (1998) | No | Bacidina delicata | 144 | LC | ||||
| 9018 | Woessia inundata | (Fr.) Sérus. & Diederich (1998) | No | Bacidina inundata | 154 | LC | ||||
| 9019 | Xanthoanaptychia chrysophthalma | (L. f.) S.Y. Kondr. & Kärnefelt (2003) [? nom. illeg.] | No | Teloschistes chrysophthalmos | 1380 | CR B, C2, D NR P | ||||
| 9020 | Xanthocarpia crenulatella | (Nyl.) Frödén, Arup & Søchting (2013) | Yes | Xanthocarpia crenulatella | Caloplaca crenulatella | 249 | LC | Xanthocarpia crenulatella | ||
| 9021 | Xanthocarpia diffusa | (Vondrák & Llimona) Frödén, Arup & Søchting (2013) | Yes | Xanthocarpia diffusa | Caloplaca diffusa | 2592 | NE NR | Xanthocarpia diffusa | ||
| 9022 | Xanthocarpia fulva | (Harm.) Nav.-Ros. & Roux (2023) | Yes | Xanthocarpia fulva | Caloplaca marmorata auct.; Caloplaca lactea auct. brit.; Xanthocarpia marmorata auct. | 264 | LC | Xanthocarpia fulva | ||
| 9023 | Xanthocarpia marmorata | auct. non (Bagl.) Frödén, Arup & Søchting (2013) | No | Xanthocarpia fulva | 264 | LC | ||||
| 9024 | Xanthocarpia ochracea | (Schaer.) A. Massal. & De Not. (1853) | Yes | Xanthocarpia ochracea | Caloplaca ochracea; Caloplaca tetrasticha | 272 | LC NS Sc | Xanthocarpia ochracea | ||
| 9025 | Xanthomendoza coppinsii | S.Y. Kondr. & Kärnefelt & Søchting (2010) | No | Xanthomendoza oregana | 2894 | NE | ||||
| 9026 | Xanthomendoza fulva | (Hoffm.) Søchting, Kärnefelt & S.Y. Kondr. (2002) | Yes | Xanthmendoza fulva | Gallowayella fulva; Xanthoria candelaria auct. p.p.; Xanthoria fulva | 1918 | doubtfully British | DD NR | Xanthomendoza fulva | |
| 9027 | Xanthomendoza oregana | (Gyeln.) Søchting, Kärnefelt & S.Y. Kondr. (2002) | Yes | Xanthomendoza oregana | Xanthomendoza coppinsii; Xanthoria ulophyllodes auct. p.p. | 2894 | Most British records of X. ulophyllodes probably belong here | NE | ||
| 9028 | Xanthomendoza ulophyllodes | (Räsänen) Søchting, Kärnefelt & S.Y. Kondr. (2002) | Yes | Xanthomendoza ulophyllodes | Xanthoria candelaria auct. p.p.; Xanthoria fallax auct. brit.; Xanthoria ulophyllodes | 1909 | Most British records probably refer to X. oregana | LC NS | Xanthomendoza ulophyllodes | |
| 9029 | Xanthoparmelia conspersa | (Ehrh. ex Ach.) Hale (1974) | Yes | Xanthoparmelia conspersa | Parmelia conspersa Parmelia taractica |
988 | LC | Xanthoparmelia conspersa | ||
| 9030 | Xanthoparmelia delisei | (Duby) O. Blanco, A. Crespo, Elix, D. Hawksw. & Lumbsch (1978) | Yes | Xanthoparmelia delisei | Neofuscelia delisei Parmelia delisei |
990 | LC NS | Xanthoparmelia delisei |