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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3001 | Haematomma neglectum | Lumbsch & Feige | No | Haematomma sorediatum | 553 | |||||
| 3002 | Haematomma ochroleucum s. lat. | Yes | Haematomma ochroleucum s. lat. | 1547 | For records where thallus colour not reported | LC | Haematomma ochroleucum s. lat. | |||
| 3003 | Haematomma ochroleucum var. ochroleucum | (Neck.) J.R. Laundon (1970) | Yes | Haematomma ochroleucum var. ochroleucum | 554 | Thallus yellow-green; with usnic acid | LC | Haematomma ochroleucum var. ochroleucum | ||
| 3004 | Haematomma ochroleucum var. porphyrium | (Pers.) J.R. Laundon (1970) | Yes | Haematomma ochroleucum var. porphyrium | 555 | Thallus grey; usnic acid lacking | LC | Haematomma ochroleucum var. porphyrium | ||
| 3005 | Haematomma sorediatum | R.W. Rogers (1982) | Yes | Haematomma sorediatum | Haematomma leprarioides Haematomma neglectum |
553 | Haematomma sorediatum | |||
| 3006 | Haematomma ventosum | (L.) A. Massal. | No | Ophioparma ventosa | 556 | LC | ||||
| 3007 | Haematomma ventosum subsp. lapponicum | (Räsänen) J.R. Laundon | No | Ophioparma lapponica | Ophioparma lapponica (Räsänen) Hafellner & R.W. Rogers, but British status of this species doubtful | |||||
| 3008 | Hafellia arnoldii | (Servít) Hafellner & Türk | No | Buellia arnoldii | 1854 | NT NR Sc IR | ||||
| 3009 | Hafellia disciformis | (Fr.) Marbach & H. Mayrhofer | No | Buellia disciformis | 204 | LC | ||||
| 3010 | Hafellia leptoclinoides | (Nyl.) Schied. & H. Mayrhofer | No | Buellia leptoclinoides | 210 | LC NR | ||||
| 3011 | Hafellia sanguinolenta | (T. Schauer) Hafellner & Türk | No | Buellia sanguinolenta | 1856 | NT NR Sc | ||||
| 3012 | Hainesia pertusariae | Etayo & Diederich (1996) | No | Epithamnolia pertusariae | 2292 | NE NR | LF | |||
| 3013 | Hainesia xanthoriae | Brackel (2009) | No | Epithamnolia xanthoriae | 2671 | NE NR | LF | |||
| 3014 | Halecania alpivaga | (Th. Fr.) M. Mayrhofer (1987) | Yes | Halecania alpivaga | Lecania alpivaga | 1756 | VU D2 NR Sc | Halecania alpivaga | ||
| 3015 | Halecania bryophila | Fryday & Coppins (1996) | Yes | Halecania bryophila | 983 | NT NR E Sc IR | Halecania bryophila | |||
| 3016 | Halecania giraltiae | Van den Boom & Etayo (2001) | Yes | Halecania giraltiae | 2774 | NE NR | Halecania giraltiae | |||
| 3017 | Halecania laevis | M. Brand & Van den Boom (2009) | Yes | Halecania laevis | Catillaria laevis | 2552 | NE NR | Halecania laevis | ||
| 3018 | Halecania micacea | Fryday & Coppins (1996) | Yes | Halecania micacea | 1821 | LC NR E Sc IR | Halecania micacea | |||
| 3019 | Halecania ralfsii | (Salwey) M. Mayrhofer (1987) | Yes | Halecania ralfsii | Catillaria jejuna Lecania ralfsii |
620 | LC NS | Halecania ralfsii | ||
| 3020 | Halecania rhypodiza | (Nyl.) Coppins (1989) | Yes | Halecania rhypodiza | Catillaria rhypodiza | 319 | VU D2 NR E P Sc IR | Halecania rhypodiza | ||
| 3021 | Halecania spodomela | (Nyl.) M. Mayrhofer (1987) | Yes | Halecania spodomela | Lecania spodomela | 622 | LC NR Sc | Halecania spodomela | ||
| 3022 | Halecania viridescens | Coppins & P. James (1989) | Yes | Halecania viridescens | Halecaniella viridescens | 1704 | LC NS | Halecania viridescens | ||
| 3023 | Halecaniella viridescens | (Coppins & P. James) M. Svenss., S. Ekman & M. Westb. (2026) | No | Halecania viridescens | 1704 | LC NS | ||||
| 3024 | Haloplaca britannica | (R. Sant.) Arup, Søchting & Frödén (2013) | Yes | Haloplaca britannica | Caloplaca britannica | 1689 | LC NS ?E Sc IR | Haloplaca britannica | ||
| 3025 | Haloplaca sorediella | (Arup) Arup, Frödén & Søchting (2013) | Yes | Haloplaca sorediella | Caloplaca sorediella | 2459 | LC NR | Haloplaca sorediella | ||
| 3026 | Haloplaca suaedae | (O.L. Gilbert & Coppins) Arup, Frödén & Søchting (2013) | Yes | Haloplaca suaedae | Caloplaca suaedae | 2321 | NT NR IR | Haloplaca suaedae | ||
| 3027 | Halospora deminuta | (Arnold) Tomas. & Cif. (1952) | No | Merismatium deminutum | 1152 | currently a synonym but may be adopted as the correct name in the future | LC NS | |||
| 3028 | Halospora discrepans | (J. Lahm ex Arnold) Hafellner (2011) | No | Merismatium discrepans | 1154 | currently a synonym but may be adopted as the correct name in the future |
LC NS | |||
| 3029 | Hastifera tenuispora | D. Hawksw. & Poelt | No | Micarea cinerea f. tenuispora | 2341 | LC NR | ||||
| 3030 | Haugania oederi | (Ach.) E.J. Möller & Timdal (2024) | Yes | Haugania oederi | Rhizocarpon oederi | 1267 | LC M* | Haugania oederi |