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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3511 | Lecanora gelida | (L.) Ach. | No | Placopsis gelida | 1133 | DD NS | ||||
| 3512 | Lecanora geminipara | Th. Fr. (1871) | No | Toensbergia geminipara | 923 | NT NR Sc | ||||
| 3513 | Lecanora gibbosa | auct. p.max.p. | No | Circinaria caesiocinerea | 102 | LC | ||||
| 3514 | Lecanora gibbosa f. lacustris | (With.) Leight. (1871) | No | Hymenelia lacustris | 573 | LC | ||||
| 3515 | Lecanora gibbosa f. porinoidea | (Flot.) Leight. (1879) | No | Circinaria caesiocinerea | 102 | LC | ||||
| 3516 | Lecanora gibbosa var. zonata | auct. brit. | No | Circinaria caesiocinerea | 102 | LC | ||||
| 3517 | Lecanora gisleri | Poelt & Ullrich | No | Lecanora gisleriana | 1763 | DD NR Sc M* | ||||
| 3518 | Lecanora gisleriana | Müll. Arg. (1874) | Yes | Lecanora gisleriana | Lecanora gisleri | 1763 | DD NR Sc M* | Lecanora gisleriana | ||
| 3519 | Lecanora glabrata | (Ach.) Malme | No | incorrectly reported from the British Isles | ||||||
| 3520 | Lecanora glaucella | (Flot.) Nyl. (1891) | No | Lecanora albellula var. albellula | 665 | LC NS | ||||
| 3521 | Lecanora glaucocarpa | (Ach.) Ach. | No | Acarospora glaucocarpa | 11 | LC NS | ||||
| 3522 | Lecanora glaucocarpa f. conspersa | (Th. Fr.) Cromb. (1873) | No | Acarospora glaucocarpa | 11 | LC NS | ||||
| 3523 | Lecanora glaucocarpa f. pruinosa | Leight. | No | Sarcogyne regularis | 1306 | LC | ||||
| 3524 | Lecanora glaucoma | (Hoffm.) Ach. (1810) | No | Glaucomaria rupicola var. rupicola | 674 | LC | ||||
| 3525 | Lecanora grumosa | (Pers.) Du Rietz | No | Tephromela grumosa | 654 | LC | ||||
| 3526 | Lecanora haematomma | auct. | No | Haematomma ochroleucum s. lat. | Haematomma ochroleucum s. lat. | LC | ||||
| 3527 | Lecanora hagenii | (Ach.) Ach. (1810) | No | Myriolecis hagenii | Lecanora umbrina; Myriolecis hagenii | 621 | LC | |||
| 3528 | Lecanora hagenii f. zosterae | (Ach.) A.L. Sm. | No | Myriolecis zosterae | 2287 | LC NS | ||||
| 3529 | Lecanora hagenii var. zosterae | (Ach.) Zahlbr. | No | Myriolecis zosterae | 2287 | LC NS | ||||
| 3530 | Lecanora handelii | J. Steiner (1909) | Yes | Lecanora handelii | 1692 | NT NS M* | Lecanora handelii | |||
| 3531 | Lecanora helicopis | (Wahlenb.) Ach. (1814) | Yes | Lecanora helicopis | 655 | LC | Lecanora helicopis | |||
| 3532 | Lecanora hoffmannii | Müll. Arg. (1889) non auct. p.max.p. | No | Circinaria contorta | 107 | LC | ||||
| 3533 | Lecanora hoffmannii | auct. p.max.p. | No | Circinaria hoffmanniana | 113 | LC NS | ||||
| 3534 | Lecanora hookeri | (Borrer ex Sm.) Hook. | No | Pannaria hookeri | 975 | NT NS Sc | ||||
| 3535 | Lecanora horiza | (Ach.) Linds. (1869) | Yes | Lecanora horiza | Lecanora laevis Lecanora parisiensis |
1764 | NT NS Sc | Lecanora horiza | ||
| 3536 | Lecanora hybocarpa | auct. brit. non (Tuck.) Brodo (1984) | Yes | Lecanora hybocarpa | 2506 | NE NR | Lecanora hybocarpa | |||
| 3537 | Lecanora hypophaea | Nyl. | No | Sarcogyne hypophaea | 1305 | LC NS | ||||
| 3538 | Lecanora hypopta | auct. brit. | No | Lecanora phaeostigma | 731 | LC NS | ||||
| 3539 | Lecanora hypoptella | (Nyl.) Grummann (1963) | Yes | Lecanora hypoptella | 601 | DD NR Sc | Lecanora hypoptella | |||
| 3540 | Lecanora hypoptoides | (Nyl.) Nyl. (1872) | Yes | Lecanora hypoptoides | 2745 | NE NR | Lecanora hypoptoides |