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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 7531 | Rhizocarpon tinei subsp. diabasicum | (Räsänen) Runemark | No | Rhizocarpon geographicum | 1257 | LC | ||||
| 7532 | Rhizocarpon tinei subsp. prospectans | (Räsänen) Runemark | No | Rhizocarpon geographicum | 1257 | LC | ||||
| 7533 | Rhizocarpon tinei subsp. vulgare | Runemark | No | Rhizocarpon geographicum | 1257 | LC | ||||
| 7534 | Rhizocarpon transiens | Eitner | No | incorrectly reported from the British Isles | ||||||
| 7535 | Rhizocarpon umbilicatum | (Ramond) Flagey (1894) | Yes | Rhizocarpon umbilicatum | Rehmia umbilicata; Rhizocarpon calcareum | 1279 | LC | Rhizocarpon umbilicatum | ||
| 7536 | Rhizocarpon viridiatrum | (Wulfen) Körb. (1855) | Yes | Rhizocarpon viridiatrum | 1280 | LC NS | Rhizocarpon viridiatrum | |||
| 7537 | Rhizomorpha dichotoma | Sowerby | No | name of uncertain application {?F} | F | |||||
| 7538 | Rhizomorpha spinosa | Ach. | No | name of uncertain application {?F} | F | |||||
| 7539 | Rhizonema interruptum | (Carmich. ex Hook.) Thwaites, comb. inval., p.p. | No | Dictyonema coppinsii | 488 | DD NR Sc | ||||
| 7540 | Rhymbocarpus cruciatus | (Sherwood, D. Hawksw. & Coppins) Etayo & Diederich (2000) | Yes | Rhymbocarpus cruciatus | Skyttea cruciata | 2205 | lichenicolous on Dipoicia canescens | NE NR | LF | Rhymbocarpus cruciatus |
| 7541 | Rhymbocarpus elachistophorus | (Nyl.) Triebel (1989) | No | Skyttea elachistophora | 2206 | LF | ||||
| 7542 | Rhymbocarpus ericetorum | (Körb.) Etayo, Diederich & Ertz (2010) | Yes | Rhymbocarpus ericetorum | Gelatinopsis ericetorum | 2066 | lichenicolous on Dibaeis baeomyces | LC NR | LF | Rhymbocarpus ericetorum |
| 7543 | Rhymbocarpus gregarius | (Sherwood, D. Hawksw. & Coppins) Triebel | No | Skyttea gregaria | 2208 | LC | LF | |||
| 7544 | Rhymbocarpus neglectus | (Vain.) Diederich & Etayo (2000) | Yes | Rhymbocarpus neglectus | Llimoniella neglectaNesolechia neglecta | 2106 | lichenicolous on Lepraria spp. | NE NR | LF | Rhymbocarpus neglectus |
| 7545 | Rhymbocarpus pubescens | (Etayo & Diederich) Diederich & Etayo (2000) | Yes | Rhymbocarpus pubescens | Llimoniella pubescens | 2302 | lichenicolous on Lepraria lobificans | NE NR | LF | Rhymbocarpus pubescens |
| 7546 | Ricasolia amplissima | (Scop.) De Not. (1846) | Yes | Ricasolia amplissima | Dendriscocaulon umhausense; Lobaria amplissima; Polychidium umhausense | 855 | LC Sc L IR | Ricasolia amplissima | ||
| 7547 | Ricasolia glomulifera | (Lightf.) Nyl. (1855) | No | Ricasolia amplissima | 855 | LC Sc L IR | ||||
| 7548 | Ricasolia laetevirens | (Lightf.) Leight. (1871) | No | Ricasolia virens | 856 | LC Sc L IR | ||||
| 7549 | Ricasolia virens | (With.) H.H. Blom & Tønsberg (2016) | Yes | Ricasolia virens | Lobaria laetevirens; Lobaria virens | 856 | LC Sc L IR | Ricasolia virens | ||
| 7550 | Riccia auriformis | With. (1776) | No | Lathagrium auriforme | 433 | LC | ||||
| 7551 | Rimelia reticulata | (Taylor) Hale & A. Fletcher | No | Parmotrema reticulatum | 1012 | LC | ||||
| 7552 | Rimularia badioatra | (Kremp.) Hertel & Rambold (1990) | Yes | Rimularia badioatra | Lecidea illita Mosigia illita |
733 | LC NS | Rimularia badioatra | ||
| 7553 | Rimularia furvella | (Nyl. ex Mudd) Hertel & Rambold (1987) | No | Lambiella furvella | 722 | LC | ||||
| 7554 | Rimularia fuscosora | Muhr & Tønsberg (1989) | No | Lambiella fuscosora | 1894 | DD NR Sc | ||||
| 7555 | Rimularia gibbosa | (Ach.) Coppins, Hertel & Rambold (1990) | No | incorrectly reported from the British Isles | ||||||
| 7556 | Rimularia globulosa | Coppins (2001) | No | Lambiella globulosa | 1992 | NT NR Sc | ||||
| 7557 | Rimularia gyrizans | (Nyl.) Hertel & Rambold (1990) | No | Lambiella gyrizans | 725 | LC NS | ||||
| 7558 | Rimularia insularis | (Nyl.) Rambold & Hertel (1985) | No | Lambiella insularis | 736 | LC NS | ||||
| 7559 | Rimularia intercedens | (H. Magn.) Coppins (1993) | Yes | Rimularia intercedens | Mosigia intercedens | 1633 | LC NS | Rimularia intercedens | ||
| 7560 | Rimularia limborina | Nyl. (1868) | Yes | Rimularia limborina | Lecidea limborina Lecidea trochodes |
741 | LC NS | Rimularia limborina |