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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 6901 | Porina tenuifera | (Nyl.) A.L. Sm. | No | Porina chlorotica f. tenuifera | 1887 | NE NR | ||||
| 6902 | Porocyphus areolatus | Flot. ex Körb. (1855) | No | Porocyphus coccodes | 1184 | LC NS | ||||
| 6903 | Porocyphus coccodes | Flot. ex Körb. (1855) | Yes | Porocyphus coccodes | Psorotichia diffundensPsorotichia pyrenopsoides | 1184 | LC NS | Porocyphus coccodes | ||
| 6904 | Porocyphus furfurellus | (Nyl.) Forssell (1885) | No | Porocyphus coccodes | 1184 | LC NS | ||||
| 6905 | Porocyphus kenmorensis | (H.B. Holl ex Nyl.) Henssen (1974) | Yes | Porocyphus kenmorensis | 1185 | NT NS Sc | Porocyphus kenmorensis | |||
| 6906 | Porocyphus leptogiella | (Nyl.) L.T. Ellis (1981) | Yes | Porocyphus leptogiella | 808 | NT NR Sc | Porocyphus leptogiella | |||
| 6907 | Porocyphus rehmicus | (A. Massal.) Zahlbr. (1924) | No | Porocyphus rehmicus | incorrectly reported from British Isles. Records referable to Pyrenopsis furfurea | DD NR | ||||
| 6908 | Poroscyphus rehmicus | auct. brit. | No | Pyrenopsis furfurea | 1212 | DD NR Sc | ||||
| 6909 | Porpidia athroocarpa | (Ach.) Hertel & Rambold | No | Immersaria athroocarpa | 699 | LC NS | ||||
| 6910 | Porpidia cinereoatra | (Ach.) Hertel & Knoph (1984) | Yes | Porpidia cinereoatra | Huilia albocaerulescens auct. p.p. Huilia cinereoatra Lecidea albocaerulescens auct. p.p. Porpidia musiva |
562 | LC | Porpidia cinereoatra | ||
| 6911 | Porpidia confluenta | Fryday ad int. (1996) | No | Porpidia pachythallina | 2400 | LC NR | ||||
| 6912 | Porpidia confluenta | No | 340 | BLS number no longer used | ||||||
| 6913 | Porpidia contraponenda | (Arnold) Knoph & Hertel (1984) | Yes | Porpidia contraponenda | Huilia albocaerulescens auct. p.p. Lecidea albocaerulescens auct. p.p. |
1790 | LC NS | Porpidia contraponenda | ||
| 6914 | Porpidia crustulata | (Ach.) Hertel & Knoph (1984) | Yes | Porpidia crustulata | Huilia crustulata Lecidea crustulata |
564 | LC | Porpidia crustulata | ||
| 6915 | Porpidia flavicunda | auct. brit. p.max.p. | No | Porpidia flavocruenta | 2398 | name or specific epithet valid but has been misused in the past | LC NS | |||
| 6916 | Porpidia flavicunda | (Ach.) Gowan (1989) | Yes | Porpidia flavicunda | Huilia flavocaerulescens auct. p.p. Lecidea flavicunda Porpidia flavocaerulescens auct. p.p. |
1791 | LC NS | Porpidia flavicunda | ||
| 6917 | Porpidia flavocaerulescens | (Hornem.) Hertel & A.J. Schwab (1984), nom. rejic. | No | Porpidia flavicunda | 1791 | LC NS | ||||
| 6918 | Porpidia flavocaerulescens | auct. [sorediate taxon] | No | Porpidia melinodes | 565 | LC NS | ||||
| 6919 | Porpidia flavocruenta | Fryday & Buschbom (2005) | Yes | Porpidia flavocruenta | 2398 | LC NS | Porpidia flavocruenta | |||
| 6920 | Porpidia glaucophaea | (Körb.) Hertel & Knoph | No | Porpidia rugosa | 566 | LC | ||||
| 6921 | Porpidia grisea | Gowan | No | 118 | incorrectly reported from the British Isles, BLS number no longer used | |||||
| 6922 | Porpidia hydrophila | (Fr.) Hertel & A.J. Schwab (1984) | Yes | Porpidia hydrophila | Huilia hydrophila Lecidea hydrophila |
567 | LC | Porpidia hydrophila | ||
| 6923 | Porpidia irrigua | Orange (2014) | Yes | Porpidia irrigua | 2637 | NE NR | Porpidia irrigua | |||
| 6924 | Porpidia islandica | Fryday, Knoph & Hertel (2005) | Yes | Porpidia islandica | 2405 | DD NR | Porpidia islandica | |||
| 6925 | Porpidia lowiana | Gowan (1989) | Yes | Porpidia lowiana | 2403 | CR D NR | Porpidia lowiana | |||
| 6926 | Porpidia macrocarpa f. macrocarpa | Yes | Porpidia macrocarpa f. macrocarpa | Porpidia macrocarpa Huilia macrocarpa Lecidea macrocarpa |
568 | LC | Porpidia macrocarpa f. macrocarpa | |||
| 6927 | Porpidia macrocarpa f. nigrocruenta | (Anzi) Fryday (2005) | Yes | Porpidia macrocarpa f. nigrocruenta | Huilia nigrocruenta Lecidea nigrocruenta |
2399 | LC NR | |||
| 6928 | Porpidia melinodes | (Körb.) Gowan & Ahti (1993) | Yes | Porpidia melinodes | Huilia flavocaerulescens auct. p.p. Huilia melinodes Lecidea melinodes Porpidia flavocaerulescens auct. p.p. |
565 | LC NS | Porpidia melinodes | ||
| 6929 | Porpidia musiva | (Körb.) Hertel & Knoph | No | Porpidia cinereoatra | 562 | LC | ||||
| 6930 | Porpidia musiva | No | 1888 | BLS number no longer used |