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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 4591 | Leciographa physciaria | (Nyl.) H. Olivier (1906) | No | Phacothecium varium | 1953 | LC NR | LF | |||
| 4592 | Leciographa plumbina | Anzi | No | Toninia plumbina | 1907 | NT NR Sc | LF | |||
| 4593 | Leciographa scapanaria | (Carrington) A.L. Sm. | No | Dactylospora scapanaria | 2703 | hepaticolous fungus | F | |||
| 4594 | Leciographa zwackhii | A. Massal. ex Zwackh | No | Phacographa zwackhii | 2133 | NE NR Sc | LF | |||
| 4595 | Lecothecium nigrum | (Huds.) A. Massal. (1852) | No | Placynthium nigrum | 1139 | LC | ||||
| 4596 | Lecothecium nigrum f. fuscum | (Hepp) Mudd | No | Placynthium nigrum | 1139 | LC | ||||
| 4597 | Leightoniomyces phillipsii | (Berk. & Leight.) D. Hawksw. & B. Sutton (1977) | Yes | Leightoniomyces phillipsii | 2080 | lichenicolous on Thrombium epigaeum | NE NR | LF | Leightoniomyces phillipsii | |
| 4598 | Leimonis erratica | (Körb.) R.C. Harris & Lendemer (2009) | Yes | Leimonis erratica | Helocarpon erraticum; Lecidea erratica; Micarea erratica | 719 | LC | Leimonis erratica | ||
| 4599 | Leimonis lynceola | (Th. Fr.) Aptroot (2017) | Yes | Leimonis lynceola | Micarea excipulata; Micarea lynceola | 1775 | LC NR | Leimonis lynceola | ||
| 4600 | Leiophloea fallax | (Nyl.) Reidl (1970) | No | Arthopyrenia analepta | 1540 | LC | F | |||
| 4601 | 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 | |||
| 4602 | Lemmopsis arnoldiana | (Hepp) Zahlbr. (1906) | Yes | Lemmopsis arnoldiana | 807 | NT NR Sc | Lemmopsis arnoldiana | |||
| 4603 | Lemmopsis leptogiella | (Nyl.) A.L. Sm. | No | Porocyphus leptogiella | 808 | NT NR Sc | ||||
| 4604 | Lemmopsis oblongans | (Nyl. ex Cromb.) A.L. Sm. (1918) | Yes | Lemmopsis oblongans | 809 | DD E IR | Lemmopsis oblongans | |||
| 4605 | Lempholema isidioides | (Nyl. ex Arnold) H. Magn. | No | incorrectly reported from the British Isles | ||||||
| 4606 | Lempholemma albonigrum | H. Magn. (1946) | No | Synalissina cladodes | 814 | NT NR Sc | ||||
| 4607 | Lempholemma botryosum | (A. Massal.) Zahlbr. (1924) | No | Synalissina botryosa | 810 | LC NS | ||||
| 4608 | Lempholemma chalazanellum | (Nyl.) Zahlbr. (1924) | Yes | Lempholemma chalazanellum | 811 | sometimes considered a synonym of L. polyanthes | LC NS | Lempholemma chalazanellum | ||
| 4609 | Lempholemma chalazanodes | (Nyl.) Zahlbr. (1924) | Yes | Lempholemma chalazanodes | 812 | sometimes considered a synonym of L. polyanthes | NE | Lempholemma chalazanodes | ||
| 4610 | Lempholemma chalazanum | (Ach.) B. de Lesd. (1910) | Yes | Lempholemma chalazanum | 813 | DD NS | Lempholemma chalazanum | |||
| 4611 | Lempholemma cladodes | (Tuck.) Zahlbr. (1924) | No | Synalissina cladodes | 814 | NT NR Sc | ||||
| 4612 | Lempholemma confertum | (Ach.) Zahlbr. | No | ? Enchylium tenax | ||||||
| 4613 | Lempholemma fennicum | (Räsänen) Degel. | No | Synalissina intricata | 815 | NT NR Sc | ||||
| 4614 | Lempholemma intricatum | (Arnold) Zahlbr. (1924) | No | Synalissina intricata | 815 | NT NR Sc | ||||
| 4615 | Lempholemma isidioides | No | 816 | BLS number no longer used | ||||||
| 4616 | Lempholemma myriococcum | (Ach.) Th. Fr. | No | Lempholemma polyanthes | 817 | LC NS | ||||
| 4617 | Lempholemma polyanthes | (Bernh.) Malme (1918) | Yes | Lempholemma polyanthes | Lempholemma myriococcum | 817 | LC NS | Lempholemma polyanthes | ||
| 4618 | Lempholemma radiatum | (Sommerf.) Henssen (1968) | Yes | Lempholemma radiatum | Thyrea radiata | 818 | NT NR Sc | Lempholemma radiatum | ||
| 4619 | Lendemeriella lucifuga | (G. Thor) S.Y. Kondr. (2020) | No | Caloplaca lucifuga | 1642 | VU C, D1 NR P Eng Sc Wa | ||||
| 4620 | Lendemeriella nivalis | (Körb.) S.Y. Kondr. (2020) | No | Caloplaca nivalis | 269 | CR B, D NR S Sc S8 |