| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| LEGO4 | Lecidea goniophiloides de Lesd. | | Lecideaceae
|
| LEGR17 | Lecidea granulata H. Magn. | Lecidella granulata | Lecanoraceae
|
| LEGR18 | Lecidea granulosa (Hoffm.) Ach. | Trapeliopsis granulosa | Trapeliaceae
|
| LEGR19 | Lecidea gregaria G. Merr. | Trapelia involuta | Trapeliaceae
|
| LEGR20 | Lecidea grisella Florke ex Schaerer | Lecidea fuscoatra | Lecideaceae
|
| LEGY2 | Lecidea gyrodes H. Magn. | Fuscidea gyrodes | Fuscideaceae
|
| LEHA8 | Lecidea hassei Zahlbr. | | Lecideaceae
|
| LEHE5 | Lecidea hebescens Nyl. | | Lecideaceae
|
| LEHE7 | Lecidea helvola (Korber) Th. Fr. | Biatora helvola | Bacidiaceae
|
| LEHE8 | Lecidea heppii R. Anderson & W. A. Weber | Lecidella wulfenii | Lecanoraceae
|
| LEHO3 | Lecidea holopolia (Tuck.) Zahlbr. | | Lecideaceae
|
| LEHO4 | Lecidea homalodes Nyl. | Lecidea tessellata | Lecideaceae
|
| LEHO5 | Lecidea homosema Nyl. | | Lecideaceae
|
| LEHU5 | Lecidea humilis Lowe | | Lecideaceae
|
| LEHU6 | Lecidea humosa (Hoffm.) Nyl. | Placynthiella uliginosa | Trapeliaceae
|
| LEHY11 | Lecidea hypnorum Lib. | Mycobilimbia hypnorum | Porpidiaceae
|
| LEHY6 | Lecidea hypocrita A. Massal. | Farnoldia hypocrita | Porpidiaceae
|
| LEHY7 | Lecidea hypomela Nyl. | | Lecideaceae
|
| LEHY8 | Lecidea hypopta Ach. | Lecanora hypopta | Lecanoraceae
|
| LEIC | Lecidea icterica (Mont.) Taylor | Psora icterica | Psoraceae
|
| LEIM3 | Lecidea impavida Th. Fr. | Rimularia impavida | Rimulariaceae
|
| LEIN17 | Lecidea instrata Nyl. | Miriquidica instrata | Lecanoraceae
|
| LEIN18 | Lecidea insularis Nyl. | Rimularia insularis | Rimulariaceae
|
| LEIN29 | Lecidea internectens Nyl. | Biatora subduplex | Bacidiaceae
|
| LEIN11 | Lecidea intropallida Fink | | Lecideaceae
|
| LEIN12 | Lecidea intrudens H. Magn. | Miriquidica intrudens | Lecanoraceae
|
| LEIN19 | Lecidea intumescens (Flotow) Nyl. | Rimularia insularis | Rimulariaceae
|
| LEJU3 | Lecidea jurana Schaerer | Farnoldia jurana | Porpidiaceae
|
| LEKA3 | Lecidea katahdinensis Degel. | | Lecideaceae
|
| LEKOS | Lecidea kochiana Hepp var. subreagens H. Magn. | Fuscidea subreagens | Fuscideaceae
|
| LEKO2 | Lecidea kochiana Hepp | Fuscidea kochiana | Fuscideaceae
|
| LELA34 | Lecidea laboriosa Mull. Arg. | | Lecideaceae
|
| LELA16 | Lecidea labradorica Arnold | | Lecideaceae
|
| LELA23 | Lecidea lactea Florke ex Schaerer | Lecidea lapicida | Lecideaceae
|
| LELA24 | Lecidea lacus-crateris H. Magn. | Lecidella stigmatea | Lecanoraceae
|
| LELA60 | Lecidea lapicida (Ach.) Ach. | | Lecideaceae
|
| LELA26 | Lecidea latypea Ach. | Lecidea plana | Lecideaceae
|
| LELA25 | Lecidea latypea auct. | Lecidella carpathica | Lecanoraceae
|
| LELA27 | Lecidea latypiza Nyl. | Lecidella carpathica | Lecanoraceae
|
| LELE16 | Lecidea lepidastra (Tuck.) Hasse | | Lecideaceae
|
| LELE25 | Lecidea leprarioides Tonsberg | | Lecideaceae
|
| LELE17 | Lecidea leptoboloides Nyl. | Lecidea laboriosa | Lecideaceae
|
| LELE22 | Lecidea leucophaea (Florke ex Rabenh.) Nyl. | Miriquidica leucophaea | Lecanoraceae
|
| LELE23 | Lecidea leucophaeoides Nyl. | Miriquidica lulensis | Lecanoraceae
|
| LELE18 | Lecidea leucothallina Arnold | | Lecideaceae
|
| LELI9 | Lecidea limborina (Nyl.) Lamy | Rimularia limborina | Rimulariaceae
|
| LELI10 | Lecidea limitata auct. | Lecidella elaeochroma | Lecanoraceae
|
| LELI6 | Lecidea limosa Ach. | | Lecideaceae
|
| LELI7 | Lecidea lithophila (Ach.) Ach. | | Lecideaceae
|
| LELI11 | Lecidea lithospersa Zahlbr. | Farnoldia hypocrita | Porpidiaceae
|
| LELO7 | Lecidea lopadioides (Th. Fr.) Grumm. | Trapelia mooreana | Trapeliaceae
|
| LELO5 | Lecidea louisianae de Lesd. | | Lecideaceae
|
| LELO8 | Lecidea lowensis H. Magn. | Fuscidea lowensis | Fuscideaceae
|
| LELU4 | Lecidea lucida (Ach.) Ach. | Psilolechia lucida | Micareaceae
|
| LELU5 | Lecidea lugubris Sommerf. | Ropalospora lugubris | Fuscideaceae
|
| LELU6 | Lecidea lulensis (Hellbom) Stizenb. | Miriquidica lulensis | Lecanoraceae
|
| LELU3 | Lecidea lurida (Ach.) DC. | | Lecideaceae
|
| LELU7 | Lecidea luridella Tuck. | Psora luridella | Psoraceae
|
| LELY4 | Lecidea lynceola Th. Fr. | Micarea bauschiana | Micareaceae
|
| LELY5 | Lecidea lyngeana Zahlbr. | Adelolecia pilati | Bacidiaceae
|
| LELY3 | Lecidea lyngei Degel. | | Lecideaceae
|
| LEMAT | Lecidea macrocarpa (DC.) Steudel var. trullisata (Arnold) Mig. | Porpidia zeoroides | Porpidiaceae
|
| LEMA19 | Lecidea macrocarpa (DC.) Steudel | Porpidia macrocarpa | Porpidiaceae
|
| LEMA12 | Lecidea mammillana Tuck. | | Lecideaceae
|
| LEMA13 | Lecidea mannii Tuck. | | Lecideaceae
|
| LEMA14 | Lecidea marciensis Lowe | | Lecideaceae
|
| LEMA20 | Lecidea marginata Schaerer | Lecanora marginata | Lecanoraceae
|
| LEMA15 | Lecidea marylandensis H. Magn. | | Lecideaceae
|
| LEME10 | Lecidea meiocarpa Nyl. | Biatora meiocarpa | Bacidiaceae
|
| LEME16 | Lecidea melancheima Tuck. | Pyrrhospora elabens | Lecanoraceae
|
| LEME11 | Lecidea melaphanoides Nyl. | | Lecideaceae
|
| LEME17 | Lecidea melinodes (Korber) H. Magn. ex Lynge | Porpidia melinodes | Porpidiaceae
|
| LEME12 | Lecidea merrillii H. Magn. | | Lecideaceae
|
| LEMI22 | Lecidea micacea Korber | Lecidella stigmatea | Lecanoraceae
|
| LEMI17 | Lecidea micytho Tuck. | | Lecideaceae
|
| LEMI23 | Lecidea minuta (Nyl.) Nyl. | Biatora meiocarpa | Bacidiaceae
|
| LEMI24 | Lecidea misella (Nyl.) Nyl. | Micarea misella | Micareaceae
|
| LEMO12 | Lecidea mollis (Wahlenb.) Nyl. | Fuscidea mollis | Fuscideaceae
|
| LEMO13 | Lecidea monticola Ach. | Clauzadea monticola | Porpidiaceae
|
| LEMO10 | Lecidea moreliiensis de Lesd. | | Lecideaceae
|
| LEMU7 | Lecidea mutabilis Fee | | Lecideaceae
|
| LEMY2 | Lecidea myriocarpella (G. Merr.) Zahlbr. | | Lecideaceae
|
| LEMY3 | Lecidea myriocarpoides Nyl. | Lecidea plebeja | Lecideaceae
|
| LENE12 | Lecidea nearingii H. Magn. | | Lecideaceae
|
| LENE13 | Lecidea nemoralis Lowe | | Lecideaceae
|
| LENO5 | Lecidea novomexicana (de Lesd.) W. A. Weber ex R. Anderson | Psora nipponica | Psoraceae
|
| LENY2 | Lecidea nylanderi (Anzi) Th. Fr. | | Lecideaceae
|
| LEOB6 | Lecidea oblongula H. Magn. | Caloplaca oblongula | Teloschistaceae
|
| LEOB7 | Lecidea obtegens Th. Fr. | Trapelia obtegens | Trapeliaceae
|
| LEOC4 | Lecidea occidentalis Lynge | Lecidea tessellata | Lecideaceae
|
| LEOC7 | Lecidea ochrococca Nyl. | Protoparmelia ochrococca | Lecanoraceae
|
| LEOL3 | Lecidea oligotropha J. R. Laundon | Placynthiella oligotropha | Trapeliaceae
|
| LEOL4 | Lecidea olivacea (Hoffm.) A. Massal. | Lecidella elaeochroma | Lecanoraceae
|
| LEOL2 | Lecidea olivascens Th. Fr. | | Lecideaceae
|
| LEOR9 | Lecidea oreinodes (Korber) W. A. Weber & Hertel | Lecanora oreinoides | Lecanoraceae
|
| LEOR10 | Lecidea ornata (Sommerf.) Hue | Trapelia involuta | Trapeliaceae
|
| LEOR6 | Lecidea orosthea (Ach.) Ach. | Lecanora orosthea | Lecanoraceae
|
| LEOS2 | Lecidea ostreata (Hoffm.) Schaerer | Hypocenomyce scalaris | Lecideaceae
|
| LEOX2 | Lecidea oxyspora (Tul.) Nyl. | Phacopsis oxyspora | Lecanoraceae
|
| LEPA19 | Lecidea pacifica Herre | | Lecideaceae
|
| LEPA20 | Lecidea paddensis (Tuck.) Zahlbr. | | Lecideaceae
|