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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3631 | Lecanora saxicola var. versicolor | (Pers.) Tuck. (1871) | No | Protoparmeliopsis muralis | 661 | LC | ||||
| 3632 | Lecanora schistina | (Nyl.) Arnold | No | Lecanora praepostera | 669 | LC NS | ||||
| 3633 | Lecanora scopularis | Nyl. (1883) | No | Athallia scopularis | 278 | NT NS | ||||
| 3634 | Lecanora scruposa | (Schreb.) Sommerf. | No | Diploschistes scruposus | 495 | LC | ||||
| 3635 | Lecanora scruposa var. parasitica | Sommerf. | No | Diploschistes muscorum | 494 | LC | ||||
| 3636 | Lecanora semipallida | H. Magn. (1940) | No | Myriolecis semipallida | 610 | LC NS | ||||
| 3637 | Lecanora sinuosa | Herk & Aptroot (1999) | Yes | Lecanora sinuosa | 2561 | LC NR | Lecanora sinuosa | |||
| 3638 | Lecanora sophodes | (Ach.) Ach. | No | Rinodina sophodes | 1298 | LC | ||||
| 3639 | Lecanora sophodes var. exigua | auct. brit. p.max.p., non (Ach.) Cromb. | No | Rinodina oleae | 1289 | LC | ||||
| 3640 | Lecanora sophodes var. lecideoides | auct. brit. | No | ? Rinodina oleae | ||||||
| 3641 | Lecanora soralifera | (Suza) Räsänen (1931) | Yes | Lecanora soralifera | Lecanora intricata var. soralifera | 679 | LC | Lecanora soralifera | ||
| 3642 | Lecanora sordida | (Pers.) Th. Fr. (1861) | No | Glaucomaria rupicola var. rupicola | 674 | LC | ||||
| 3643 | Lecanora sordida var. subcarnea | (Lilj.) Th. Fr. | No | Lecanora subcarnea | 684 | LC NS | ||||
| 3644 | Lecanora spodophaea | (Wahlenb. ex Ach.) Ach. (1810) | No | Myriolecis poliophaea | 666 | LC | ||||
| 3645 | Lecanora spodophaeoides | Nyl. ex Cromb. | No | Lecanora campestris subsp. campestris | 635 | LC | ||||
| 3646 | Lecanora squamulosa | sensu Hook. (1833) p.p. | No | Acarospora fuscata | 10 | LC | ||||
| 3647 | Lecanora squamulosa | auct. brit. 19th C p.p. | No | Acarospora macrospora subsp. macrospora | 14 | NT NR Sc | ||||
| 3648 | Lecanora squamulosa | sensu Hook. (1833) p.p. | No | Protoparmelia badia | 633 | LC | ||||
| 3649 | Lecanora squamulosa | sensu Taylor (1836) | No | Protoparmelia badia | 633 | LC | ||||
| 3650 | Lecanora stanislai | Guz.-Krzem., Łubek, Malíček & Kukwa (2017) | Yes | Lecanora stanislai | 2889 | NE NR | ||||
| 3651 | Lecanora stenotropa | Nyl. (1872) | Yes | Lecanora stenotropa | Lecanora polytropa var. stenotropa | 680 | LC | Lecanora stenotropa | ||
| 3652 | Lecanora steropea | (Ach.) Nyl. (1880) | No | Calogaya pusilla | 277 | LC | ||||
| 3653 | Lecanora straminea | Ach. (1810) | No | Myriolecis straminea | 681 | NT NR Sc | ||||
| 3654 | Lecanora strobilina | (Spreng.) Kieff. (1895) | Yes | Lecanora strobilina | 682 | VU D2 NR | Lecanora strobilina | |||
| 3655 | Lecanora subalbella | Nyl. | No | Lecanora albella | 754 | LC NS Sc | ||||
| 3656 | Lecanora subaurea | Zahlbr. (1928) | Yes | Lecanora subaurea | 683 | LC NS M* | Lecanora subaurea | |||
| 3657 | Lecanora subcarnea | auct. brit. p.p. | No | Lecanora ochroidea | 694 | [esp. material from SW Britain] name or specific epithet valid but has been misused in the past | DD NR | |||
| 3658 | Lecanora subcarnea | (Lilj.) Ach. (1810) | Yes | Lecanora subcarnea | 684 | LC NS | Lecanora subcarnea | |||
| 3659 | Lecanora subcircinata | Nyl. (1873) | No | Lobothallia radiosa | 124 | LC | ||||
| 3660 | Lecanora subdepressa | auct. brit. | No | Aspicilia laevata | 115 | LC NS |