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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 1471 | Caloplaca itiana | sensu Orange (2018) non Cl. Roux, M. Boulanger & Malle (2009) | No | Flavoplaca calcitrapa | 2609 | NE NR | Caloplaca itiana | |||
| 1472 | Caloplaca lactea | auct. brit. non (A. Massal.) Zahlbr. (1901) | No | Caloplaca marmorata | 264 | LC | ||||
| 1473 | Caloplaca lallavei | (Clemente ex Ach.) Flagey (1886) | No | Kuettlingeria teicholyta | 281 | LC | ||||
| 1474 | Caloplaca lallavei | auct. brit. p.p., non (Clem. ex Ach.) Flagey | No | Kuettlingeria albolutescens | 2503 | some records may be Caloplaca teicholyta | LC NS | |||
| 1475 | Caloplaca lamprocheila | (DC.) Flagey (1888) | No | Rufoplaca arenaria | 235 | LC NS | ||||
| 1476 | Caloplaca limonia | Nimis & Poelt (1994) | No | Flavoplaca limonia | 2607 | LC | Caloplaca limonia | |||
| 1477 | Caloplaca lithophila | auct. brit. | No | Flavoplaca oasis | 2461 | LC | ||||
| 1478 | Caloplaca littorea | Tav. (1956) | Yes | Caloplaca littorea | 265 | LC NS | Caloplaca littorea | |||
| 1479 | Caloplaca lobulata | (Flörke) Hellb. | No | incorrectly reported from the British Isles | ||||||
| 1480 | Caloplaca lucifuga | G. Thor (1988) | Yes | Caloplaca lucifuga | Lendemeriella lucifuga | 1642 | VU C, D1 NR P Eng Sc Wa | Caloplaca lucifuga | ||
| 1481 | Caloplaca luteoalba | (Turner) Th. Fr. (1860) | No | Cerothallia luteoalba | 266 | EN A2, C1 NS P Eng Sc Wa S8 | Caloplaca luteoalba | |||
| 1482 | Caloplaca marina | (Wedd.) Zahlbr. (1921) | No | Flavoplaca marina | 267 | LC | Caloplaca marina | |||
| 1483 | Caloplaca marina var. flavogranulata | (Wedd.) Zahlbr. (1921) | No | Flavoplaca marina | 267 | LC | ||||
| 1484 | Caloplaca maritima | (B. de Lesd.) B. de Lesd. (1953) | No | Flavoplaca maritima | 280 | LC NS | Caloplaca maritima | |||
| 1485 | Caloplaca marmorata | (Bagl.) Jatta (1900) | Yes | Caloplaca marmorata | Caloplaca lactea auct. brit.; Xanthocarpia marmorata | 264 | LC | Caloplaca marmorata | ||
| 1486 | Caloplaca medians | (Nyl.) Flagey | No | Candelariella medians f. medians | 296 | LC | ||||
| 1487 | Caloplaca microthallina | (Wedd.) Zahlbr. (1931) | No | Flavoplaca microthallina | 268 | LC | Caloplaca microthallina | |||
| 1488 | Caloplaca miniatula | (Nyl.) Zahlbr. (1931) | No | Calogaya oblitterata | 236 | LC | ||||
| 1489 | Caloplaca monacensis | (Leder.) Lettau (1912) | Yes | Caloplaca monacensis | 2496 | ? synonym of Caloplaca virescens | NE NR | Caloplaca monacensis | ||
| 1490 | Caloplaca murorum | sensu auct. brit. | No | Calogaya pusilla | 277 | LC | ||||
| 1491 | Caloplaca murorum f. pusilla | auct. brit. | No | Calogaya pusilla | 277 | LC | ||||
| 1492 | Caloplaca neotaurica | Vondrák, Khodosovtsev, Arup & Søchting (2012) | No | Kuettlingeria neotaurica | 2595 | NE | ||||
| 1493 | Caloplaca nivalis | (Körb.) Th. Fr. (1871) | Yes | Caloplaca nivalis | Lendemeriella nivalis | 269 | CR B, D NR S Sc S8 | Caloplaca nivalis | ||
| 1494 | Caloplaca oasis | (A. Massal.) Szatala (1932) | No | Flavoplaca oasis | 2461 | LC | Caloplaca oasis | |||
| 1495 | Caloplaca obliterans | (Nyl.) Blomb. & Forssell (1880) | No | Leproplaca obliterans | 270 | LC NS | Caloplaca obliterans | |||
| 1496 | Caloplaca obliterascens | (Nyl.) Zahlbr. (1931) | No | Calogaya oblitterata | 236 | LC | ||||
| 1497 | Caloplaca obscurella | (J. Lahm) Th. Fr. (1871) | Yes | Caloplaca obscurella | Caloplaca sarcopisioides; Caloplaca sarcopidoides | 271 | LC | Caloplaca obscurella | ||
| 1498 | Caloplaca ochracea | (Schaer.) Flagey (1886) | Yes | Caloplaca ochracea | Caloplaca tetrasticha; Xanthocarpia ochracea | 272 | LC NS Sc | Caloplaca ochracea | ||
| 1499 | Caloplaca phaeocarpella | (Nyl.) Zahlbr. | No | Huneckia pollinii | 274 | Synonymy and British status needs further study | Ex | |||
| 1500 | Caloplaca phlogina | (Ach.) Flagey (1886) | Yes | Caloplaca phlogina | Caloplaca citrina auct. p.p.; Polycauliona phlogina; Scythioria phlogina | 2317 | NE ?NS | Caloplaca phlogina |