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 |
|---|---|---|---|---|---|---|---|---|---|---|
| 3811 | Lecidea botryiza | Nyl. ex Stirt. (1873) | No | Brianaria lutulata | 882 | LC | ||||
| 3812 | Lecidea botryoides | (Nyl.) Zahlbr. | No | Micarea botryoides | 874 | LC | ||||
| 3813 | Lecidea botryosa | (Fr.) Th. Fr. | No | Hertelidea botryosa | 703 | NT NR Sc | ||||
| 3814 | Lecidea brachyspora | (Th. Fr.) Nyl. (1887) | Yes | Lecidea brachyspora | Lecidea auriculata subsp. brachyspora | 704 | LC NS | Lecidea brachyspora | ||
| 3815 | Lecidea breadalbanensis | Stirt. | No | Japewia tornoensis | 786 | VU D2 NR Sc | ||||
| 3816 | Lecidea brujeriana | (Schaer. ex Dietr.) Leight. | No | Ainoa mooreana | 1433 | LC NS | ||||
| 3817 | Lecidea brujeriana f. ochrodes | Nyl. in Stirt., nomen nudum | No | Ainoa mooreana | 1433 | LC NS | ||||
| 3818 | Lecidea bruyeriana | (Schaer. ex Dietr.) Leight. [orth. error] | No | Ainoa mooreana | 1433 | LC NS | ||||
| 3819 | Lecidea bruyeriana f. ochrodes | Nyl. in Stirt., nomen nudum [orth. error] | No | Ainoa mooreana | 1433 | LC NS | ||||
| 3820 | Lecidea byssoboliza | Nyl. (1879) | No | Aquacidia antricola | 139 | LC NS | ||||
| 3821 | Lecidea cadubriae | (A. Massal.) Th. Fr. | No | Lecanora cadubriae | 1626 | LC NS | ||||
| 3822 | Lecidea caesioatra | Schaer. | No | Frutidella caesioatra | 705 | LC NS | ||||
| 3823 | Lecidea calcivora | (Schaer.) A. Massal. (1853) | No | Clauzadea immersa | 734 | LC | ||||
| 3824 | Lecidea callicarpa | Larbal. ex Leight. | No | ? Brianaria bauschiana | ||||||
| 3825 | Lecidea callista | Stirt. | No | name of uncertain application (type lost) | ||||||
| 3826 | Lecidea calpodes | Stirt. | No | name of uncertain application (type lost) | ||||||
| 3827 | Lecidea caradocensis | Leight. ex Nyl. | No | Xylopsora caradocensis | 576 | LC | ||||
| 3828 | Lecidea carneoalbens | Nyl. (1876) | No | Micarea cinerea f. cinerea | 875 | LC | ||||
| 3829 | Lecidea carneoglauca | Nyl. (1873) | No | Aquacidia antricola | 139 | LC NS | ||||
| 3830 | Lecidea carneola | Ach. | No | Pachyphiale carneola | 972 | LC L | ||||
| 3831 | Lecidea carpathica | (Körb.) Szatala | No | Lecidella carpathica | 796 | LC | ||||
| 3832 | Lecidea carrollii | Coppins & P. James | No | Japewiella tavaresiana | 708 | LC | ||||
| 3833 | Lecidea cechumena | Ach. | No | Lecidea fuscoatra s. lat. | 724 | |||||
| 3834 | Lecidea cetrariicola | No | 1947 | BLS number no longer used | ||||||
| 3835 | Lecidea chalybeia | Borrer | No | Catillaria chalybeia var. chalybeia | 306 | LC | ||||
| 3836 | Lecidea chalybeioides | Nyl. | No | Claurouxia chalybeioides | 1709 | LC NS | ||||
| 3837 | Lecidea chlorocarpa | Leight. | No | unidentified | F | |||||
| 3838 | Lecidea chloroscotina | Nyl. (1887) | No | Catillaria baliola | 1863 | NE NS | ||||
| 3839 | Lecidea chlorotiza | Nyl. (1866) | No | Lecania chlorotiza | 307 | NT NS P Eng Sc Wa IR | ||||
| 3840 | Lecidea cinerascens | sensu A.L. Sm., non Nyl. | No | Porpidia speirea | 774 | LC |