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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5821 | Opegrapha pulverulenta | Sm., non Pers. | No | Graphis inustuloides | 529 | LC | ||||
| 5822 | Opegrapha pulvinata | Rehm (1869) | Yes | Opegrapha pulvinata | 1954 | LC NR Sc | LF | Opegrapha pulvinata | ||
| 5823 | Opegrapha reactiva | (Alstrup & D. Hawksw.) Etayo & Diederich (2008) | Yes | Opegrapha reactiva | Kalaallia reactiva | 2075 | LC NR | LF | Opegrapha reactiva | |
| 5824 | Opegrapha rimalis | Ach. (1809) | No | Alyxoria varia | 964 | LC | ||||
| 5825 | Opegrapha rotunda | Hafellner (1994) | Yes | Opegrapha rotunda | 1067 | lichenicolous on Physconia distorta | LC NR Sc | LF | Opegrapha rotunda | |
| 5826 | Opegrapha rubefacta | Räsänen (1946) | Yes | Opegrapha rubefacta | 1882 | doubtfully British | DD NR | |||
| 5827 | Opegrapha rubella | auct. brit. p.max.p. | No | Pseudoschismatomma rufescens | 958 | LC | ||||
| 5828 | Opegrapha rubella | sensu Mudd | No | ? Zwackhia viridis | ||||||
| 5829 | Opegrapha rubescens | Sandst. (1912) | No | Alyxoria ochrocheila | 954 | LC | ||||
| 5830 | Opegrapha rufescens | Pers. (1794) | No | Pseudoschismatomma rufescens | 958 | LC | ||||
| 5831 | Opegrapha rupestris | Pers. (1794) | Yes | Opegrapha rupestris | Opegrapha parasitica auct. p.p. Opegrapha persoonii |
2132 | LC NS | LF | Opegrapha rupestris | |
| 5832 | Opegrapha sawyeriana | Coppins (2021) | Yes | Opegrapha sawyeriana | 2778 | lichenicolous on Coniocarpon cinnabarinum | NE NR | LF | Opegrapha sawyeriana | |
| 5833 | Opegrapha saxatilis | auct. brit. p.max.p. | No | Arthonia calcarea | 959 | LC | ||||
| 5834 | Opegrapha saxatilis | sensu Leight., non DC. | No | Alyxoria mougeotii | 952 | LC NS | ||||
| 5835 | Opegrapha saxatilis | DC., non auct. brit. | No | Opegrapha rupestris | 2132 | LC NS | LF | |||
| 5836 | Opegrapha saxicola | auct. | No | Opegrapha dolomitica | 960 | LC NS | ||||
| 5837 | Opegrapha saxicola var. decandollei | Stizenb. (1865) | No | Arthonia calcarea | 959 | LC | ||||
| 5838 | Opegrapha saxicola var. gyrocarpa | (Flot.) Stizenb. | No | Gyrographa gyrocarpa | 947 | LC | ||||
| 5839 | Opegrapha saxicola var. persoonii | auct. | No | Opegrapha rupestris | 2132 | LC NS | LF | |||
| 5840 | Opegrapha saxigena | Taylor (1836) | No | Gyrographa saxigena | 961 | LC NS Sc IR | ||||
| 5841 | Opegrapha scripta | (L.) Ach. (1803) | No | Graphis scripta s. str. | 2865 | LC | ||||
| 5842 | Opegrapha semicincta | Zahlbr. ? | No | Opegrapha rupestris | 2132 | LC NS | LF | |||
| 5843 | Opegrapha siderella | Ach. | No | Pseudoschismatomma rufescens | 958 | LC | ||||
| 5844 | Opegrapha siderella | auct. brit. p.p. | No | Opegrapha vulgata | 943 | LC | ||||
| 5845 | Opegrapha sorediifera | P. James (1962) | No | Zwackhia sorediifera | 962 | LC L* | ||||
| 5846 | Opegrapha sphaerophoricola | Isbrand & Alstrup (1992) | Yes | Opegrapha sphaerophoricola | 2380 | DD NR Sc | LF | Opegrapha sphaerophoricola | ||
| 5847 | Opegrapha subelevata | Nyl. (1888) | No | Alyxoria subelevata | 963 | EN D NR P Eng | ||||
| 5848 | Opegrapha subsiderella | (Nyl.) Arnold | No | Opegrapha niveoatra | 953 | LC | ||||
| 5849 | Opegrapha sulcata | Moug. & Nestl. ex DC. | No | Graphis elegans | 532 | LC | ||||
| 5850 | Opegrapha thelotrematis | Coppins (1984) | Yes | Opegrapha thelotrematis | 1844 | LC NS Sc IR | LF | Opegrapha thelotrematis |