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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3691 | Lecanora sambuci subsp. dimera | (Nyl.) Wheldon & A. Wilson | No | Lecania dubitans | 2388 | DD NR Sc | ||||
| 3692 | Lecanora sarcopidoides | (A. Massal.) Hedl. (1892) | No | Lecanoropsis sarcopidoides | 678 | DD NR | Lecanora sarcopidoides | |||
| 3693 | Lecanora sarcopis | (Wahlenb. ex Ach.) Ach. (1813) | No | Lecanoropsis saligna | 675 | LC | ||||
| 3694 | Lecanora sarcopisioides | (A. Massal.) A.L. Sm. [orth. error] | No | Lecanoropsis sarcopidoides | 678 | DD NR | ||||
| 3695 | Lecanora saxicola | (Pollich) Ach. (1810) | No | Protoparmeliopsis muralis | 661 | LC | ||||
| 3696 | Lecanora saxicola var. versicolor | (Pers.) Tuck. (1871) | No | Protoparmeliopsis muralis | 661 | LC | ||||
| 3697 | Lecanora schistina | (Nyl.) Arnold | No | Lecanora praepostera | 669 | LC NS | ||||
| 3698 | Lecanora scopularis | Nyl. (1883) | No | Athallia scopularis | 278 | NT NS | ||||
| 3699 | Lecanora scruposa | (Schreb.) Sommerf. | No | Diploschistes scruposus | 495 | LC | ||||
| 3700 | Lecanora scruposa var. parasitica | Sommerf. | No | Diploschistes muscorum | 494 | LC | ||||
| 3701 | Lecanora semipallida | H. Magn. (1940) | No | Myriolecis semipallida | 610 | LC NS | ||||
| 3702 | Lecanora sinuosa | Herk & Aptroot (1999) | Yes | Lecanora sinuosa | 2561 | member of Lecanora hybocarpa agg. | LC NR | Lecanora sinuosa | ||
| 3703 | Lecanora sophodes | (Ach.) Ach. | No | Rinodina sophodes | 1298 | LC | ||||
| 3704 | Lecanora sophodes var. exigua | auct. brit. p.max.p., non (Ach.) Cromb. | No | Rinodina oleae | 1289 | LC | ||||
| 3705 | Lecanora sophodes var. lecideoides | auct. brit. | No | ? Rinodina oleae | ||||||
| 3706 | Lecanora soralifera | (Suza) Räsänen (1931) | Yes | Lecanora soralifera | Lecanora intricata var. soralifera | 679 | LC | Lecanora soralifera | ||
| 3707 | Lecanora sordida | (Pers.) Th. Fr. (1861) | No | Glaucomaria rupicola var. rupicola | 674 | LC | ||||
| 3708 | Lecanora sordida var. subcarnea | (Lilj.) Th. Fr. | No | Lecanora subcarnea | 684 | LC NS | ||||
| 3709 | Lecanora spodophaea | (Wahlenb. ex Ach.) Ach. (1810) | No | Myriolecis poliophaea | 666 | LC | ||||
| 3710 | Lecanora spodophaeoides | Nyl. ex Cromb. | No | Lecanora campestris subsp. campestris | 635 | LC | ||||
| 3711 | Lecanora squamulosa | sensu Hook. (1833) p.p. | No | Acarospora fuscata | 10 | LC | ||||
| 3712 | Lecanora squamulosa | auct. brit. 19th C p.p. | No | Acarospora macrospora subsp. macrospora | 14 | NT NR Sc | ||||
| 3713 | Lecanora squamulosa | sensu Hook. (1833) p.p. | No | Protoparmelia badia | 633 | LC | ||||
| 3714 | Lecanora squamulosa | sensu Taylor (1836) | No | Protoparmelia badia | 633 | LC | ||||
| 3715 | Lecanora stanislai | Guz.-Krzem., Łubek, Malíček & Kukwa (2017) | No | Zeora stanislai | 2889 | NE NR | Lecanora stanislai | |||
| 3716 | Lecanora stenotropa | Nyl. (1872) | Yes | Lecanora stenotropa | Lecanora polytropa var. stenotropa | 680 | LC | Lecanora stenotropa | ||
| 3717 | Lecanora steropea | (Ach.) Nyl. (1880) | No | Calogaya pusilla | 277 | LC | ||||
| 3718 | Lecanora straminea | Ach. (1810) | No | Myriolecis straminea | 681 | NT NR Sc | ||||
| 3719 | Lecanora strobilina | (Spreng.) Kieff. (1895) | No | Zeora strobilina | 682 | VU D2 NR | Lecanora strobilina | |||
| 3720 | Lecanora subalbella | Nyl. | No | Lecanora albella | 754 | LC NS Sc |