| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| LEBO7 | Lecidea botryosa (Fr.) Th. Fr. | Biatora botryosa | Bacidiaceae
|
| LEBR6 | Lecidea brachyspora (Th. Fr.) Nyl. | | Lecideaceae
|
| LEBR8 | Lecidea brandegei Tuck. | Rhizoplaca melanophthalma | Lecanoraceae
|
| LEBR9 | Lecidea brouardii (de Lesd.) Zahlbr. | Psorula rufonigra | Psoraceae
|
| LEBR10 | Lecidea brujeriana (D. Dietr.) Leighton | Trapelia mooreana | Trapeliaceae
|
| LEBR7 | Lecidea brunneofusca H. Magn. | | Lecideaceae
|
| LECA43 | Lecidea cadubriae (A. Massal.) Nyl. | Lecanora cadubriae | Lecanoraceae
|
| LECA29 | Lecidea caeca Lowe | Rimularia caeca | Rimulariaceae
|
| LECA30 | Lecidea caesioatra Schaerer | Frutidella caesioatra | Lecideaceae
|
| LECA44 | Lecidea caesiocoronata Lowe | Lecidea olivascens | Lecideaceae
|
| LECA45 | Lecidea calcivora (Ehrh.) Nyl. | Clauzadea immersa | Porpidiaceae
|
| LECA31 | Lecidea californica Zahlbr. | | Lecideaceae
|
| LECA46 | Lecidea carbonoidea J. W. Thomson | Immersaria carbonoidea | Porpidiaceae
|
| LECA32 | Lecidea carneoalbens Nyl. | | Lecideaceae
|
| LECA33 | Lecidea carnulenta (Tuck.) Fink | | Lecideaceae
|
| LECA47 | Lecidea carpathica (Korber) Szat. | Lecidella carpathica | Lecanoraceae
|
| LECA34 | Lecidea cascadensis H. Magn. | | Lecideaceae
|
| LECA48 | Lecidea catalinaria Stizenb. | Lecidella asema | Lecanoraceae
|
| LECA49 | Lecidea caulophylla (Tuck.) Zahlbr. | Lecanora caulophylla | Lecanoraceae
|
| LECE4 | Lecidea cellularis Lowe | | Lecideaceae
|
| LECH16 | Lecidea chalybeiza Nyl. | Micarea erratica | Micareaceae
|
| LECI6 | Lecidea cinerata Zahlbr. | | Lecideaceae
|
| LECI12 | Lecidea cinereoatra Ach. | Porpidia cinereoatra | Porpidiaceae
|
| LECI13 | Lecidea cinereorufa Schaerer | Schaereria cinereorufa | Schaereriaceae
|
| LECI7 | Lecidea cinnabarina Sommerf. | Pyrrhospora cinnabarina | Lecanoraceae
|
| LECIR | Lecidea circumnigrata H. Magn. var. reagens H. Magn. | Miriquidica lulensis | Lecanoraceae
|
| LECI16 | Lecidea circumnigrata H. Magn. | Miriquidica pulvinata | Lecanoraceae
|
| LECO33 | Lecidea coarctata (Sm.) Nyl. | Trapelia coarctata | Trapeliaceae
|
| LECO34 | Lecidea columbiana H. Magn. | Lecidea tessellata | Lecideaceae
|
| LECO19 | Lecidea columnata Lowe | | Lecideaceae
|
| LECO20 | Lecidea conferenda Nyl. | Adelolecia kolaensis | Bacidiaceae
|
| LECO21 | Lecidea confluens (Weber) Ach. | | Lecideaceae
|
| LECO22 | Lecidea congesta Fink | | Lecideaceae
|
| LECO35 | Lecidea contigua Fr. | Porpidia macrocarpa | Porpidiaceae
|
| LECO36 | Lecidea coroniformis Krempelh. | Psora crenata | Psoraceae
|
| LECR11 | Lecidea crassilabra Mull. Arg. | | Lecideaceae
|
| LECR7 | Lecidea crassipes (Th. Fr.) Nyl. | Helocarpon crassipes | Micareaceae
|
| LECR8 | Lecidea crenata (Taylor) Stizenb. | Psora crenata | Psoraceae
|
| LECR3 | Lecidea crisima Nyl. | | Lecideaceae
|
| LECR4 | Lecidea cruciaria Tuck. | | Lecideaceae
|
| LECR9 | Lecidea crustulata (Ach.) Sprengel | Porpidia crustulata | Porpidiaceae
|
| LECU6 | Lecidea cuprea Sommerf. | Biatora cuprea | Bacidiaceae
|
| LECY9 | Lecidea cyanea (Ach.) Rohl. | Lecidea tessellata | Lecideaceae
|
| LECY10 | Lecidea cyanescens Lynge | Lecidea lapicida | Lecideaceae
|
| LECY11 | Lecidea cyathoides (Ach.) Ach. | Fuscidea cyathoides | Fuscideaceae
|
| LECY8 | Lecidea cyrtidia Tuck. | | Lecideaceae
|
| LEDE16 | Lecidea decipiens (Hedwig) Ach. | Psora decipiens | Psoraceae
|
| LEDE8 | Lecidea degelii H. Magn. | | Lecideaceae
|
| LEDE9 | Lecidea delincta Nyl. | | Lecideaceae
|
| LEDE10 | Lecidea deminutula H. Magn. | | Lecideaceae
|
| LEDE17 | Lecidea demissa (Rutstr.) Ach. | Lecidoma demissum | Psoraceae
|
| LEDE11 | Lecidea despecta Th. Fr. | | Lecideaceae
|
| LEDE18 | Lecidea deustata Zahlbr. | Miriquidica deusta | Lecanoraceae
|
| LEDI12 | Lecidea diapensiae Th. Fr. | | Lecideaceae
|
| LEDI21 | Lecidea dicksonii auct. | Tremolecia atrata | Hymeneliaceae
|
| LEDI13 | Lecidea diducens Nyl. | | Lecideaceae
|
| LEDI22 | Lecidea dilutiuscula Nyl. | Micarea bauschiana | Micareaceae
|
| LEDI23 | Lecidea diversa Lowe | Porpidia diversa | Porpidiaceae
|
| LEDO6 | Lecidea dolodes Nyl. | | Lecideaceae
|
| LEEC | Lecidea eckfeldtii Zahlbr. | | Lecideaceae
|
| LEEC2 | Lecidea ecrustacea (Anzi ex Arnold) Arnold | | Lecideaceae
|
| LEEF3 | Lecidea efflorescens (Hedl.) Erichsen | Biatora efflorescens | Bacidiaceae
|
| LEEL6 | Lecidea elabens Fr. | Pyrrhospora elabens | Lecanoraceae
|
| LEEL10 | Lecidea elaeochroma (Ach.) Ach. | Lecidella elaeochroma | Lecanoraceae
|
| LEEL11 | Lecidea elata Schaerer | Lecanora marginata | Lecanoraceae
|
| LEEL12 | Lecidea elegantior H. Magn. | Amygdalaria elegantior | Porpidiaceae
|
| LEEM | Lecidea ementiens Nyl. | | Lecideaceae
|
| LEEN3 | Lecidea endolithea Lynge | Lecidella patavina | Lecanoraceae
|
| LEEN2 | Lecidea enterophaea Vainio | | Lecideaceae
|
| LEEP6 | Lecidea epiiodiza Nyl. | Schaereria endocyanea | Schaereriaceae
|
| LEEP3 | Lecidea epizanthoidiza Nyl. | Biatora efflorescens | Bacidiaceae
|
| LEER6 | Lecidea erratica Korber | Micarea erratica | Micareaceae
|
| LEER4 | Lecidea erythrophaea Florke ex Sommerf. | | Lecideaceae
|
| LEEU2 | Lecidea euphorea (Florke) Nyl. | Lecidella euphorea | Lecanoraceae
|
| LEEV | Lecidea evansii H. Magn. | Lecidella carpathica | Lecanoraceae
|
| LEEX3 | Lecidea extenuata Vainio | | Lecideaceae
|
| LEFI5 | Lecidea fissuriseda Poelt | Mycobilimbia fissuriseda | Porpidiaceae
|
| LEFL9 | Lecidea flavidolivens (Tuck.) Fink | | Lecideaceae
|
| LEFL15 | Lecidea flavocaerulescens Hornem. | Porpidia flavocaerulescens | Porpidiaceae
|
| LEFL16 | Lecidea flexuosa (Fr.) Nyl. | Trapeliopsis flexuosa | Trapeliaceae
|
| LEFL10 | Lecidea floridensis Nyl. | | Lecideaceae
|
| LEFR8 | Lecidea friesii Ach. | Hypocenomyce friesii | Lecideaceae
|
| LEFU6 | Lecidea fuliginosa Taylor | | Lecideaceae
|
| LEFU15 | Lecidea furfuracea Pers. | Phyllopsora furfuracea | Bacidiaceae
|
| LEFU7 | Lecidea furfurosa Tuck. ex Nyl. | | Lecideaceae
|
| LEFU8 | Lecidea furva Lowe | | Lecideaceae
|
| LEFU16 | Lecidea furvella Nyl. ex Mudd | Rimularia furvella | Rimulariaceae
|
| LEFU9 | Lecidea furvonigrans (Tuck.) Zahlbr. | | Lecideaceae
|
| LEFU17 | Lecidea fusca (Schaerer) Th. Fr. | Mycobilimbia hypnorum | Porpidiaceae
|
| LEFU10 | Lecidea fuscatoatra Nyl. | | Lecideaceae
|
| LEFU18 | Lecidea fuscescens Sommerf. | Lecanora fuscescens | Lecanoraceae
|
| LEFU11 | Lecidea fuscoatra (L.) Ach. | | Lecideaceae
|
| LEFU19 | Lecidea fuscocinerea Nyl. | Schaereria fuscocinerea | Schaereriaceae
|
| LEGA6 | Lecidea garovaglii Schaerer | Miriquidica garovaglii | Lecanoraceae
|
| LEGE4 | Lecidea gelatinosa Florke | Trapeliopsis gelatinosa | Trapeliaceae
|
| LEGE5 | Lecidea geophana Nyl. | Steinia geophana | Lecideaceae
|
| LEGL12 | Lecidea glaucophaea Korber | Porpidia glaucophaea | Porpidiaceae
|
| LEGL9 | Lecidea glaucopholis Nyl. | | Lecideaceae
|
| LEGL13 | Lecidea glebulosa (Fr.) Clem. | Trapeliopsis wallrothii | Trapeliaceae
|
| LEGL14 | Lecidea globifera Ach. | Psora globifera | Psoraceae
|
| LEGL15 | Lecidea glomerulosa (DC.) Steudel | Lecidella euphorea | Lecanoraceae
|