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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5521 | Mycoblastus sanguinarius f. leprosus | Nádv. (1951) | Yes | Mycoblastus sanguinarius f. leprosus | 1881 | sorediate morph | LC NR | Mycoblastus sanguinarius f. leprosus | ||
| 5522 | Mycoblastus sanguinarius f. sanguinarius | (L.) Norman (1853) | Yes | Mycoblastus sanguinarius f. sanguinarius | 909 | LC | Mycoblastus sanguinarius f. sanguinarius | |||
| 5523 | Mycoblastus sterilis | Coppins & P. James | No | Violella fucata | 908 | LC | ||||
| 5524 | Mycoblastus tornoënsis | (Nyl.) R.A. Anderson | No | Japewia tornoensis | 486 | orth. var. | VU D2 NR Sc | |||
| 5525 | Mycoblastus tornoënsis | (Nyl.) R.A. Anderson | No | Japewia tornoensis | 786 | VU D2 NR Sc | ||||
| 5526 | Mycocalicium parietinum | (Ach.) Vain. | No | Mycocalicium subtile | 1428 | LC NS Sc | F | |||
| 5527 | Mycocalicium subtile | (Pers.) Szatala (1925) | Yes | Mycocalicium subtile | Calicium subtile Mycocalicium parietinum |
1428 | LC NS Sc | F | Mycocalicium subtile | |
| 5528 | Mycoglaena acuminans | (Nyl.) Vain. (1921) | Yes | Mycoglaena acuminans | 785 | LC NR | F | Mycoglaena acuminans | ||
| 5529 | Mycoglaena myricae | (Nyl.) R.C. Harris (1973) | Yes | Mycoglaena myricae | Arthopyrenia aeruginella | 1278 | LC NS | F | Mycoglaena myricae | |
| 5530 | Mycomelaspilea leciographoides | (Vouaux) Keissl. | No | Melaspilea leciographoides | 1948 | NE NR | LF | |||
| 5531 | Mycomicrothelia atlantica | D. Hawksw. & Coppins (1985) | Yes | Mycomicrothelia atlantica | 1094 | NT NR Sc | F | Mycomicrothelia atlantica | ||
| 5532 | Mycomicrothelia confusa | D. Hawksw. (1985) | Yes | Mycomicrothelia confusa | Microthelia micula auct. | 1840 | LC | F | Mycomicrothelia confusa | |
| 5533 | Mycomicrothelia wallrothii | (Hepp) D. Hawksw. (1980) | Yes | Mycomicrothelia wallrothii | 1093 | LC NR | F | Mycomicrothelia wallrothii | ||
| 5534 | Mycoporellum obscurum | auct. brit., non (Pers.) A.L. Sm. | No | Arthonia radiata | 69 | LC | ||||
| 5535 | Mycoporellum sparsellum | auct. brit. p.max.p. | No | Mycoporum lacteum | 1576 | NT NS Sc | F | |||
| 5536 | Mycoporum antecellens | (Nyl.) R.C. Harris (1995) | Yes | Mycoporum antecellens | Arthopyrenia antecellans | 75 | LC | F | Mycoporum antecellens | |
| 5537 | Mycoporum hippocastani | (DC.) Coppins | No | Cyrtidula hippocastani | 911 | LC NS | F | |||
| 5538 | 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 | |
| 5539 | Mycoporum miserrimum | Nyl. (1857) | No | Cyrtidula quercus | 912 | LC | F | |||
| 5540 | Mycoporum ptelaeodes | (Ach.) Nyl. | No | Cyrtidula hippocastani | 911 | LC NS | F | |||
| 5541 | Mycoporum quercus | (A. Massal.) Müll. Arg. | No | Cyrtidula quercus | 912 | LC | F | |||
| 5542 | Mycoporum quercus var. ilicis | (Riedl) Coppins | No | name of uncertain application (type lost) | ||||||
| 5543 | Mycoporum sparsellum | Nyl. (1867) | Yes | Mycoporum sparsellum | 2509 | DD NR | F | Mycoporum sparsellum | ||
| 5544 | Mycopyrenula coryli | (A. Massal.) Vain. | No | Pyrenula coryli | 1675 | VU D2 NR Sc | F | |||
| 5545 | Mycosphaerella ascophylli | No | 914 | BLS number no longer used | ||||||
| 5546 | Mycosphaerella cookei | (Linds.) Sacc. & D. Sacc. | No | Muellerella lichenicola | 2116 | LC | LF | |||
| 5547 | Myochroidea porphyrospoda | (Anzi) Printzen, T. Sprib. & Tønsberg (2008) | Yes | Myochroidea porphyrospoda | Lecidea porphyrospoda | 1988 | NT NR Sc | Myochroidea porphyrospoda | ||
| 5548 | Myriolecis actophila | (Wedd.) M. Bertrand & Cl. Roux (2016) | Yes | Myriolecis actophila | Lecanora actophila | 624 | LC | Myriolecis actophila | ||
| 5549 | Myriolecis agardhiana | (Ach.) Śliwa, Zhao Xin & Lumbsch (2015) | Yes | Myriolecis agardhiana | Lecanora agardhiana | 625 | DD NS | Myriolecis agardhiana | ||
| 5550 | Myriolecis albescens | (Hoffm.) Śliwa, Zhao Xin & Lumbsch (2015) | Yes | Myriolecis albescens | Lecanora albescens; Lecanora dispersa f. albescens | 627 | LC | Myriolecis albescens |