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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 7411 | Rhizocarpon calcareum | (Fr.) Anzi (1860) | No | Rhizocarpon umbilicatum | 1279 | LC | ||||
| 7412 | Rhizocarpon chioneum | (Norman) Th. Fr. (1874) | Yes | Rhizocarpon chioneum | Rehmia chionea | 1248 | DD NR Sc | Rhizocarpon chioneum | ||
| 7413 | Rhizocarpon chlorophaeum | (Hepp ex Leight.) Müll. Arg. (1872) | No | Diplotomma chlorophaeum | 497 | LC | ||||
| 7414 | Rhizocarpon cinereonigrum | Vain. (1922) | Yes | Rhizocarpon cinereonigrum | 1274 | DD NR Sc | Rhizocarpon cinereonigrum | |||
| 7415 | Rhizocarpon cinereovirens | (Müll. Arg.) Vain. (1922) | Yes | Rhizocarpon cinereovirens | Rehmia cinereovirens | 1800 | DD NR Sc M* | Rhizocarpon cinereovirens | ||
| 7416 | Rhizocarpon colludens | sensu Fryday (1996) | No | Rhizocarpon hochstetteri | 1262 | LC | ||||
| 7417 | Rhizocarpon colludens | No | 1268 | BLS number no longer used | ||||||
| 7418 | Rhizocarpon colludens var. rufoatrum | sensu Fryday (1996) | No | Rhizocarpon hochstetteri | 1262 | Rhizocarpon hochstetteri [stictic acid-containing race] | LC | |||
| 7419 | Rhizocarpon concentricum | auct., ? non (Davies) Beltr. | No | Rhizocarpon petraeum | 1249 | LC | ||||
| 7420 | Rhizocarpon concentricum var. excentricum | (Ach.) P. Syd. (1887) | No | Rhizocarpon petraeum | 1249 | LC | ||||
| 7421 | Rhizocarpon confervoides | auct. brit. p.min.p. | No | Rhizocarpon lavatum | 1264 | LC | ||||
| 7422 | Rhizocarpon confervoides | auct. brit. p.max.p. | No | Rhizocarpon reductum | 1266 | LC | ||||
| 7423 | Rhizocarpon constrictum | Malme (1919) | No | Rhizocarpon richardii | 1250 | LC | ||||
| 7424 | Rhizocarpon copelandii | (Körb.) Th. Fr. (1874) | Yes | Rhizocarpon copelandii | 1845 | DD NR Sc | Rhizocarpon copelandii | |||
| 7425 | Rhizocarpon crystalligenum | Lynge | No | Rhizocarpon superficiale | 1277 | DD NR Sc | ||||
| 7426 | Rhizocarpon cyclodes | Hellb. (1874) | No | Rhizocarpon copelandii | 1845 | DD NR Sc | ||||
| 7427 | Rhizocarpon disporum | auct. brit., non (Nägeli ex Hepp) Müll. Arg. | No | Rhizocarpon geminatum | 1256 | DD NS | ||||
| 7428 | Rhizocarpon disporum | (Nägeli ex Hepp) Müll. Arg. | No | incorrectly reported from the British Isles | ||||||
| 7429 | Rhizocarpon distinctum | Th. Fr. (1874) | Yes | Rhizocarpon distinctum | 1251 | LC | Rhizocarpon distinctum | |||
| 7430 | Rhizocarpon drepanodes | Feuerer | No | Rhizocarpon ferax | 1252 | |||||
| 7431 | Rhizocarpon eupetraeoides | auct. non (Nyl.) Blomb. & Forssell (1880) | No | Rhizocarpon atroalbescens | 1253 | DD NR Sc | ||||
| 7432 | Rhizocarpon expallescens | Th. Fr. (1874) | Yes | Rhizocarpon expallescens | 1254 | LC NS | Rhizocarpon expallescens | |||
| 7433 | Rhizocarpon expallescens | auct. brit. p.p. | No | Rhizocarpon caesium | 968 | DD NS Sc | ||||
| 7434 | Rhizocarpon ferax | H. Magn. (1948) | Yes | Rhizocarpon ferax | 1252 | Rhizocarpon ferax | ||||
| 7435 | Rhizocarpon frigidum | Räsänen (1944) | No | Rhizocarpon geographicum | 1257 | LC | ||||
| 7436 | Rhizocarpon frigidum | No | 1255 | BLS number no longer used | ||||||
| 7437 | Rhizocarpon furfurosum | H. Magn. & Poelt (1955) | Yes | Rhizocarpon furfurosum | Rehmia furfurosa | 1694 | NT NS M* | Rhizocarpon furfurosum | ||
| 7438 | Rhizocarpon geminatum | Körb. (1855) | Yes | Rhizocarpon geminatum | Rhizocarpon disporum | 1256 | DD NS | Rhizocarpon geminatum | ||
| 7439 | Rhizocarpon geographicum | (L.) DC. (1805) | Yes | Rhizocarpon geographicum | Rhizocarpon geographicum subsp. arcticum Rhizocarpon geographicum var. atrovirens Rhizocarpon geographicum subsp. diabasicum Rhizocarpon geographicum subsp. prospectans Rhizocarpon lindsayanum Rhizocarpon riparium Rhizocarpon riparium subsp. lindsayanum |
1257 | LC | Rhizocarpon geographicum | ||
| 7440 | Rhizocarpon geographicum f. epichloroticum | Vain. (1922) | No | Rhizocarpon geographicum | 1257 | LC |