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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 2461 | Didymocyrtis pseudeverniae | (Etayo & Diederich) Ertz & Diederich (2015) | Yes | Didymocyrtis pseudeverniae | Diederichia pseudeverniae; Macrophomina pseudeverniae | 2107 | Lichenicolous on Pseudevernia; known only as anamorph | NE NR | LF | Didymocyrtis pseudeverniae |
| 2462 | Didymocyrtis ramalinae | (Roberge ex Desm.) Ertz, Diederich & Hafellner (2015) | Yes | Didymocyrtis ramalinae | 2587 | Lichenicolous on Ramalina; includes teleomorph and anamorph | NE NR | LF | Didymocyrtis ramalinae | |
| 2463 | Didymocyrtis slaptoniensis | (D. Hawksw.) Hafellner & Ertz (2015) | Yes | Didymocyrtis slaptoniensis | Polycoccum slaptoniense | 2166 | lichenicolous on Xanthoria parietina | NE NR | LF | Didymocyrtis slaptoniensis |
| 2464 | Didymosphaeria epipolytropa | (Mudd) G. Winter | No | Cercidospora epipolytropa | 2025 | LC NS | LF | |||
| 2465 | Didymosphaeria microstictica | (Leight.) G. Winter (1886) | No | Polycoccum microsticticum | 1483 | NE NR | LF | |||
| 2466 | Didymosphaeria neottizans | (Leight.) A.L. Sm. | No | Pyrenidium actinellum | 2179 | LC NS | LF | |||
| 2467 | Didymosphaeria peltigerae | Fuckel | No | Polycoccum peltigerae | 2164 | NE NR | LF | |||
| 2468 | Didymosphaeria stereocaulicola | (Linds.) Sacc. & D. Sacc. (1905) | No | Polycoccum trypethelioides | 2169 | NT NR | LF | |||
| 2469 | Diederichia pseudeverniae | (Etayo & Diederich) D. Hawksw. (2003) | No | Didymocyrtis pseudeverniae | 2107 | NE NR | LF | |||
| 2470 | Diederichomyces caloplacae | (D. Hawksw.) Crous & Trakun. (2014) | No | Didymocyrtis consimilis | 2708 | NE NR | LF | |||
| 2471 | Diederichomyces cladoniicola | (Diederich, Kocourk. & Etayo) Crous & Trakun. (2014) | No | Didymocyrtis cladoniicola | 2724 | NE NR | LF | |||
| 2472 | Diederichomyces foliaceiphila | (Diederich, Kocourk. & Etayo) Crous & Trakun. (2014) | No | Didymocyrtis foliaceiphila | 2718 | NE NR | LF | |||
| 2473 | Dimerella diluta | (Pers.) Trevis. (1880) | No | Coenogonium pineti | 489 | LC | ||||
| 2474 | Dimerella lutea | (Dicks.) Trevis. (1880) | No | Coenogonium luteum | 490 | LC L* | ||||
| 2475 | Dimerella pineti | (Ach.) Vězda (1975) | No | Coenogonium pineti | 489 | LC | ||||
| 2476 | Dimerella tavaresiana | Vězda (1969) | No | Coenogonium tavaresianum | 2695 | NE NR | ||||
| 2477 | Dinemasporium strigosum | (Pers.) Sacc. (1881) | Yes | Dinemasporium strigosum | 2726 | facultatively lichenicolous on Peltigera; anamorph of 'Phomatospora' dinemasporium | NE | LF | Dinemasporium strigosum | |
| 2478 | Diplodina lichenoides | A.L. Sm. (1911) | No | Crustodiplodina lichenoides | Crustodiplodina lichenoides (A.L. Sm.) Punith. | F | ||||
| 2479 | Diplodina sandstedei | Zopf | No | Epicladonia sandstedei | 2063 | LC NS | LF | |||
| 2480 | Diplodina solorinaria | (Linds.) Vouaux | No | Rhagadostoma lichenicola | 2184 | NE NR | LF | |||
| 2481 | Diplodina vouauxii | B. de Lesd. | No | ? Lichenodiplis lecanorae {LF} | LF | |||||
| 2482 | Diploicia canescens | (Dicks.) A. Massal. (1852) | Yes | Diploicia canescens | Buellia canescens | 491 | LC | Diploicia canescens | ||
| 2483 | Diploicia epigaea | auct. | No | Buellia asterella | 202 | CR A, C2, D NR P Eng S8 | ||||
| 2484 | Diplolaeviopsis ranula | Giralt & D. Hawksw. (1991) | Yes | Diplolaeviopsis ranula | 2283 | NE NR | LF | Diplolaeviopsis ranula | ||
| 2485 | Diplolaeviopsis symmictae | Diederich & Coppins (2014) | Yes | Diplolaeviopsis symmictae | 2646 | lichenicolous on Lecanora symmicta | NE NR | LF | Diplolaeviopsis symmictae | |
| 2486 | Diploschistes actinostoma | (Ach.) Zahlbr. (1892) | Yes | Diploschistes actinostoma | 2385 | previously incorrectly spelled "actinostomus" | CR D NR | Diploschistes actinostoma | ||
| 2487 | Diploschistes actinostoma var. caesioplumbeus | (Nyl.) J. Steiner | No | Diploschistes caesioplumbeus | 492 | LC NS | ||||
| 2488 | Diploschistes actinostomus | (Ach.) Zahlbr. (1892), orth. error | No | Diploschistes actinostoma | 2385 | CR D NR | ||||
| 2489 | Diploschistes albissimus | auct. brit. | No | Diploschistes gypsaceus | 493 | LC NS | ||||
| 2490 | Diploschistes bryophilus | (Ehrh. ex Ach.) Zahlbr. | No | Diploschistes muscorum | 494 | LC |