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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5551 | Mycocalicium subtile | (Pers.) Szatala (1925) | Yes | Mycocalicium subtile | Calicium subtile Mycocalicium parietinum |
1428 | LC NS Sc | F | Mycocalicium subtile | |
| 5552 | Mycoglaena acuminans | (Nyl.) Vain. (1921) | Yes | Mycoglaena acuminans | 785 | LC NR | F | Mycoglaena acuminans | ||
| 5553 | Mycoglaena myricae | (Nyl.) R.C. Harris (1973) | Yes | Mycoglaena myricae | Arthopyrenia aeruginella | 1278 | LC NS | F | Mycoglaena myricae | |
| 5554 | Mycomelaspilea leciographoides | (Vouaux) Keissl. | No | Melaspilea leciographoides | 1948 | NE NR | LF | |||
| 5555 | Mycomicrothelia atlantica | D. Hawksw. & Coppins (1985) | Yes | Mycomicrothelia atlantica | 1094 | NT NR Sc | F | Mycomicrothelia atlantica | ||
| 5556 | Mycomicrothelia confusa | D. Hawksw. (1985) | Yes | Mycomicrothelia confusa | Microthelia micula auct. | 1840 | LC | F | Mycomicrothelia confusa | |
| 5557 | Mycomicrothelia wallrothii | (Hepp) D. Hawksw. (1980) | Yes | Mycomicrothelia wallrothii | 1093 | LC NR | F | Mycomicrothelia wallrothii | ||
| 5558 | Mycoporellum obscurum | auct. brit., non (Pers.) A.L. Sm. | No | Arthonia radiata | 69 | LC | ||||
| 5559 | Mycoporellum sparsellum | auct. brit. p.max.p. | No | Mycoporum lacteum | 1576 | NT NS Sc | F | |||
| 5560 | Mycoporum antecellens | (Nyl.) R.C. Harris (1995) | Yes | Mycoporum antecellens | Arthopyrenia antecellans | 75 | LC | F | Mycoporum antecellens | |
| 5561 | Mycoporum hippocastani | (DC.) Coppins | No | Cyrtidula hippocastani | 911 | LC NS | F | |||
| 5562 | Mycoporum lacteum | (Ach.) R.C. Harris (1995) | Yes | Mycoporum lacteum | Mycoporellum sparsellum auct. brit. p.max.p. Tomasellia lactea |
1576 | NT NS Sc | F | Mycoporum lacteum | |
| 5563 | Mycoporum miserrimum | Nyl. (1857) | No | Cyrtidula quercus | 912 | LC | F | |||
| 5564 | Mycoporum ptelaeodes | (Ach.) Nyl. | No | Cyrtidula hippocastani | 911 | LC NS | F | |||
| 5565 | Mycoporum quercus | (A. Massal.) Müll. Arg. | No | Cyrtidula quercus | 912 | LC | F | |||
| 5566 | Mycoporum quercus var. ilicis | (Riedl) Coppins | No | name of uncertain application (type lost) | ||||||
| 5567 | Mycoporum sparsellum | Nyl. (1867) | Yes | Mycoporum sparsellum | 2509 | DD NR | F | Mycoporum sparsellum | ||
| 5568 | Mycopyrenula coryli | (A. Massal.) Vain. | No | Pyrenula coryli | 1675 | VU D2 NR Sc | F | |||
| 5569 | Mycosphaerella ascophylli | No | 914 | BLS number no longer used | ||||||
| 5570 | Mycosphaerella cookei | (Linds.) Sacc. & D. Sacc. | No | Muellerella lichenicola | 2116 | LC | LF | |||
| 5571 | Myochroidea porphyrospoda | (Anzi) Printzen, T. Sprib. & Tønsberg (2008) | Yes | Myochroidea porphyrospoda | Lecidea porphyrospoda | 1988 | NT NR Sc | Myochroidea porphyrospoda | ||
| 5572 | Myriolecis actophila | (Wedd.) M. Bertrand & Cl. Roux (2016) | Yes | Myriolecis actophila | Lecanora actophila; Polyozosia actophila | 624 | LC | Myriolecis actophila | ||
| 5573 | Myriolecis agardhiana | (Ach.) Śliwa, Zhao Xin & Lumbsch (2015) | Yes | Myriolecis agardhiana | Lecanora agardhiana; Poyozosia agardhiana | 625 | DD NS | Myriolecis agardhiana | ||
| 5574 | Myriolecis albescens | (Hoffm.) Śliwa, Zhao Xin & Lumbsch (2015) | Yes | Myriolecis albescens | Lecanora albescens; Lecanora dispersa f. albescens; Polyozosia albescens | 627 | LC | Myriolecis albescens | ||
| 5575 | Myriolecis andrewii | (B. de Lesd.) Śliwa, Zhao Xin & Lumbsch (2015) | Yes | Myriolecis andrewii | Lecanora andrewii; Polyozosia andrewii | 629 | LC NS | Myriolecis andrewii | ||
| 5576 | Myriolecis antiqua | (J.R. Laundon) Śliwa, Zhao Xin & Lumbsch (2015) | Yes | Myriolecis antiqua | Lecanora antiqua; Lecanora conferta auct.; Polyozosia antiqua | 640 | LC | Myriolecis antiqua | ||
| 5577 | Myriolecis congesta | (Clauzade & Vězda) M. Bertrand & Cl. Roux (2016) | Yes | Myriolecis congesta | Lecanora congesta; Polyozosia congesta | 642 | In British Isles only from Ireland | NE | Myriolecis congesta | |
| 5578 | Myriolecis crenulata | (Hook.) Śliwa, Zhao Xin & Lumbsch (2015) | Yes | Myriolecis crenulata | Lecanora crenulata; Polyozosia crenulata auct. | 644 | LC | Myriolecis crenulata | ||
| 5579 | Myriolecis dispersa | (Pers.) Śliwa, Zhao Xin & Lumbsch (2015) | Yes | Myriolecis dispersa | Lecanora dispersa; Polyozosia dispersa | 646 | LC | Myriolecis dispersa | ||
| 5580 | Myriolecis fugiens | (Nyl.) Śliwa, Zhao Xin & Lumbsch (2015) | Yes | Myriolecis fugiens | Lecanora fugiens; Polyozosia fugiens | 652 | LC | Myriolecis fugiens |