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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 5011 | Lichen obscurus | sensu With. (1796) | No | Anaptychia runcinata | 47 | LC | ||||
| 5012 | Lichen obscurus | Sm. & Sowerby (1807), non Ach. | No | Enterographa crassa | 504 | LC | ||||
| 5013 | Lichen omphalodes | L. | No | Parmelia omphalodes | 1006 | LC | ||||
| 5014 | Lichen orbicularis | With., non Neck. | No | Physconia distorta | 1130 | LC | ||||
| 5015 | Lichen palmatus | Huds. (1778) | No | Scytinium palmatum | 842 | NT NS Sc | ||||
| 5016 | Lichen parasiticus | Sm. (1808), non Hoffm. (1784) | No | Abrothallus parmeliarum | 2004 | LC NS | LF | |||
| 5017 | Lichen parellus | L. | No | Ochrolechia parella | 926 | LC | ||||
| 5018 | Lichen parietinus | L. | No | Xanthoria parietina | 1530 | LC | ||||
| 5019 | Lichen pellitus | Ach. | No | Umbilicaria polyrrhiza | 1452 | LC | ||||
| 5020 | Lichen perforatus | sensu Sm. (1812) p.p. | No | Parmotrema crinitum | 989 | LC L | ||||
| 5021 | Lichen perforatus | sensu Sm. (1812) p.p. | No | Parmotrema reticulatum | 1012 | LC | ||||
| 5022 | Lichen perlatus | Huds. | No | Parmotrema perlatum | 1008 | LC | ||||
| 5023 | Lichen peronellus | Ach. | No | Sclerophora peronella | 469 | NT NS | ||||
| 5024 | Lichen pertusus | L. | No | Pertusaria pertusa | 1087 | LC | ||||
| 5025 | Lichen peziziformis | With. (1776) [orth. var.] | No | Cladonia peziziformis | 365 | CR A NR P Eng Sc Wa | ||||
| 5026 | Lichen pezizæformis | With. (1776) | No | Cladonia peziziformis | 365 | CR A NR P Eng Sc Wa | ||||
| 5027 | Lichen phaeocephalus | Turner | No | Chaenotheca phaeocephala | 347 | CR B NR P Wa | ||||
| 5028 | Lichen physodes | L. | No | Hypogymnia physodes | 582 | LC | ||||
| 5029 | Lichen pityreus | Ach. | No | Physconia grisea | 1127 | LC | ||||
| 5030 | Lichen plumbosus | Sm. (1814) | No | Verrucaria coerulea | 1481 | LC | ||||
| 5031 | Lichen pollinarius | sensu Sm. | No | Ramalina lacera | 1233 | LC | ||||
| 5032 | Lichen pollinarius | Westr. | No | Ramalina pollinaria | 1237 | LC NS | ||||
| 5033 | Lichen polydactylos | With. [orth. var.] | No | Peltigera hymenina | 1043 | LC | ||||
| 5034 | Lichen polydactylus | With., non Neck. | No | Peltigera hymenina | 1043 | LC | ||||
| 5035 | Lichen polymorphos | With. [orth. var.] | No | Cladonia foliacea | 387 | LC | ||||
| 5036 | Lichen polymorphus | With. | No | Cladonia foliacea | 387 | LC | ||||
| 5037 | Lichen polymorphus | (Lilj.) Ach. (1797), non With. | No | Ramalina polymorpha | 1238 | NT NS | ||||
| 5038 | Lichen polyphyllus | L. | No | Umbilicaria polyphylla | 1451 | LC | ||||
| 5039 | Lichen polyrrhizos | L. (1753) | No | Umbilicaria polyrrhiza | 1452 | LC | ||||
| 5040 | Lichen proboscideus | sensu Huds., non L. | No | Umbilicaria cylindrica | 1446 | LC |