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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4561 | Lecidella subincongrua | (Nyl.) Hertel & Leuckert | No | Lecidella asema | 804 | LC | ||||
| 4562 | Lecidella subviridis | Tønsberg (1992) | Yes | Lecidella subviridis | 707 | DD NR Sc | Lecidella subviridis | |||
| 4563 | Lecidella viridans | (Flot.) Körb. (1855) | Yes | Lecidella viridans | Lecidea viridans | 805 | DD NR Sc | Lecidella viridans | ||
| 4564 | Lecidella wulfenii | (Hepp) Körb. (1861) | Yes | Lecidella wulfenii | 1659 | VU D2 NR Sc | Lecidella wulfenii | |||
| 4565 | Lecidoma demissum | (Rutstr.) Gotth. Schneid. & Hertel (1981) | Yes | Lecidoma demissum | Lecidea demissa Lepidoma demissum Psora demissa |
806 | LC NS | Lecidoma demissum | ||
| 4566 | Leciographa centrifuga | (A. Massal.) Rehm | No | Opegrapha rupestris | 2132 | LC NS | LF | |||
| 4567 | Leciographa glaucomaria | (Nyl.) A.L. Sm. (1911) | No | Phacographa glaucomaria | 1976 | NT NR Sc | LF | |||
| 4568 | Leciographa inspersa | auct. | No | Sclerococcum parasiticum | 1973 | LC NS | LF | |||
| 4569 | Leciographa parasitica | A. Massal. | No | Opegrapha parasitica | 1842 | LC NR | LF | |||
| 4570 | Leciographa parasitica | auct.brit. p.max.p. | No | Opegrapha rupestris | 2132 | LC NS | LF | |||
| 4571 | Leciographa parellaria | (Nyl.) Sacc. & D. Sacc. (1906) | No | Sclerococcum parellarium | 2048 | LC NS | LF | |||
| 4572 | Leciographa persimilis | Nyl. | No | ? Dactylospora scapanaria (Carrington) D. Hawksw. {F} | ||||||
| 4573 | Leciographa physciaria | (Nyl.) H. Olivier (1906) | No | Phacothecium varium | 1953 | LC NR | LF | |||
| 4574 | Leciographa plumbina | Anzi | No | Toninia plumbina | 1907 | NT NR Sc | LF | |||
| 4575 | Leciographa scapanaria | (Carrington) A.L. Sm. | No | Dactylospora scapanaria | 2703 | hepaticolous fungus | F | |||
| 4576 | Leciographa zwackhii | A. Massal. ex Zwackh | No | Phacographa zwackhii | 2133 | NE NR Sc | LF | |||
| 4577 | Lecothecium nigrum | (Huds.) A. Massal. (1852) | No | Placynthium nigrum | 1139 | LC | ||||
| 4578 | Lecothecium nigrum f. fuscum | (Hepp) Mudd | No | Placynthium nigrum | 1139 | LC | ||||
| 4579 | Leightoniomyces phillipsii | (Berk. & Leight.) D. Hawksw. & B. Sutton (1977) | Yes | Leightoniomyces phillipsii | 2080 | lichenicolous on Thrombium epigaeum | NE NR | LF | Leightoniomyces phillipsii | |
| 4580 | Leimonis erratica | (Körb.) R.C. Harris & Lendemer (2009) | Yes | Leimonis erratica | Lecidea erratica; Micarea erratica | 719 | LC | Leimonis erratica | ||
| 4581 | Leimonis lynceola | (Th. Fr.) Aptroot (2017) | Yes | Leimonis lynceola | Micarea excipulata; Micarea lynceola | 1775 | LC NR | Leimonis lynceola | ||
| 4582 | Leiophloea fallax | (Nyl.) Reidl (1970) | No | Arthopyrenia analepta | 1540 | LC | F | |||
| 4583 | Leiorreuma lyellii | (Sm.) Staiger | No | Phaeographis lyellii | 1102 | currently a synonym but may be adopted as the correct name in the future | NT NS IR | |||
| 4584 | Lemmopsis arnoldiana | (Hepp) Zahlbr. (1906) | Yes | Lemmopsis arnoldiana | 807 | NT NR Sc | Lemmopsis arnoldiana | |||
| 4585 | Lemmopsis leptogiella | (Nyl.) A.L. Sm. | No | Porocyphus leptogiella | 808 | NT NR Sc | ||||
| 4586 | Lemmopsis oblongans | (Nyl. ex Cromb.) A.L. Sm. (1918) | Yes | Lemmopsis oblongans | 809 | DD E IR | Lemmopsis oblongans | |||
| 4587 | Lempholema isidioides | (Nyl. ex Arnold) H. Magn. | No | incorrectly reported from the British Isles | ||||||
| 4588 | Lempholemma albonigrum | H. Magn. (1946) | No | Synalissina cladodes | 814 | NT NR Sc | ||||
| 4589 | Lempholemma botryosum | (A. Massal.) Zahlbr. (1924) | No | Synalissina botryosa | 810 | LC NS | ||||
| 4590 | Lempholemma chalazanellum | (Nyl.) Zahlbr. (1924) | Yes | Lempholemma chalazanellum | 811 | sometimes considered a synonym of L. polyanthes | LC NS | Lempholemma chalazanellum |