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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5761 | Opegrapha atra f. tenuior | Nyl. ex Leight. (1854) | No | Arthonia atra | 938 | LC | ||||
| 5762 | Opegrapha atra var. arthonioidea | Leight. (1861) | No | Arthonia atra | 938 | LC | ||||
| 5763 | Opegrapha atra var. denigrata | (Ach.) Schaer. (1823) | No | Arthonia atra | 938 | LC | ||||
| 5764 | Opegrapha atra var. nigrata | Leight. ex Mudd (1861) | No | arthonia atra | 938 | LC | ||||
| 5765 | Opegrapha atra var. obscura | sensu Leight. (1854), non (Pers.) Schaer. | No | Arthonia radiata | 69 | LC | ||||
| 5766 | Opegrapha atra var. parallela | Leight. ex Mudd (1861) | No | Arthonia atra | 938 | LC | ||||
| 5767 | Opegrapha atricolor | Stirt. (1876) | No | Alyxoria ochrocheila | 954 | LC | ||||
| 5768 | Opegrapha atrula | Nyl. (1877) | No | Arthonia calcarea | 959 | LC | ||||
| 5769 | Opegrapha betulina | Sm. (1811), non Pers. | No | Alyxoria culmigena | 948 | LC | ||||
| 5770 | Opegrapha brevis | Coppins (1987) | Yes | Opegrapha brevis | 1841 | NT NR Sc IR | LF | Opegrapha brevis | ||
| 5771 | Opegrapha calcarea | Turner ex Sm. (1807) | No | Arthonia calcarea | 959 | LC | ||||
| 5772 | Opegrapha calcarea var. chevallieri | (Leight.) H. Olivier (1902) | No | Arthonia calcarea | 959 | LC | ||||
| 5773 | Opegrapha centrifuga | A. Massal. | No | Opegrapha rupestris | 2132 | LC NS | LF | |||
| 5774 | Opegrapha cesareensis | Nyl. (1868) | Yes | Opegrapha cesareensis | 941 | LC | Opegrapha cesareensis | |||
| 5775 | Opegrapha chevallieri | Leight. (1854) | No | Arthonia calcarea | 959 | LC | ||||
| 5776 | Opegrapha cinerea | Chevall. | No | Opegrapha vulgata | 943 | LC | ||||
| 5777 | Opegrapha conferta | auct. brit. p.p. | No | Arthonia calcarea | 959 | |||||
| 5778 | Opegrapha conferta | Anzi, non auct. brit. | No | Gyrographa saxigena | 961 | LC NS Sc IR | ||||
| 5779 | Opegrapha confluens | auct. brit. | No | Arthonia calcarea | 959 | |||||
| 5780 | Opegrapha confluens | (Ach.) Stizenb., non auct. brit. | No | Opegrapha vulgata | 943 | LC | ||||
| 5781 | Opegrapha contexta | Stirt. | No | Pseudoschismatomma rufescens | 958 | LC | ||||
| 5782 | Opegrapha corticola | Coppins & P. James (1979) | No | Thelopsis corticola | 945 | LC IR | ||||
| 5783 | Opegrapha crassa | DC. | No | Enterographa crassa | 504 | LC | ||||
| 5784 | Opegrapha culmigena | Lib. (1830) | No | Alyxoria culmigena | 948 | LC | ||||
| 5785 | Opegrapha decandollei | (Stizenb.) Arnold (1884) | No | Arthonia calcarea | 959 | |||||
| 5786 | Opegrapha demutata | Nyl. (1879) | Yes | Opegrapha demutata | 1555 | LC NS | Opegrapha demutata | |||
| 5787 | Opegrapha dendritica | Ach. | No | Phaeographis dendritica | 1100 | LC Sc | ||||
| 5788 | Opegrapha devulgata | Nyl. | No | Opegrapha vulgata | 943 | LC | ||||
| 5789 | Opegrapha diaphora | (Ach.) Ach. (1803) | No | Alyxoria varia | 964 | LC | ||||
| 5790 | Opegrapha dolomitica | (Arnold) Clauzade & Cl. Roux ex Torrente & Egea (1989) | Yes | Opegrapha dolomitica | Opegrapha saxicola auct. | 960 | LC NS | Opegrapha dolomitica |