This list updated Jan 2007
I
| Lichen Name | Synonym |
|---|---|
| Illosporium coccineum Fr. | = Phlyctis argena |
| Illosporium corallinum Roberge | = Marchandiomyces corallinus {LF} |
| Illosporium roseum auct. | = Marchandiomyces corallinus {LF} |
| Imbricaria fuliginosa (Fr. ex Duby) Arnold | = Melanelia fuliginosa subsp. fuliginosa |
| Imbricaria fuliginosa subsp. glabratula (Lamy) Arnold | = Melanelia fuliginosa subsp. glabratula |
| Inoderma epigaea (Pers.) Gray | = Thrombium epigaeum |
| %Involucropyrenium waltheri (Kremp.) Breuss | = Catapyrenium waltheri |
| Ionaspis cyanocarpa (Anzi) Jatta | = Hymenelia cyanocarpa |
| Ionaspis epulotica (Ach.) Arnold | = Hymenelia epulotica |
| Ionaspis heteromorpha (Kremp.) Arnold | = Hymenelia heteromorpha |
| Ionaspis melanocarpa (Kremp.) Arnold | = Hymenelia melanocarpa |
| Ionaspis rhodopis (Sommerf.) Blomb. & Forsell | = Hymenelia rhodopis |
| Ionaspis rhodopsis auct. [orth. error] | = Hymenelia rhodopis |
| Ionaspis suaveolens (Ach. ex Schaer.) Stein | = Ionaspis chrysophana |
| Isidium coccodes (Ach.) Ach. | = Pertusaria coccodes |
| Isidium corallinum (L.) Ach. | = Pertusaria corallina |
| Isidium lutescens (Hoffm.) Turner & Borrer ex Hook. | = Pertusaria flavida |
| Isidium paradoxum Turner & Borrer ex Hook. | = Pertusaria ? corallina |
| Isidium phragmaeum (Ach.) Chev. | = Pertusaria flavida |
| Isidium phymatodes var. phragmaeum Ach. | = Pertusaria flavida |
J
| Lichen Name | Synonym |
|---|---|
| %Jamesiella anastomosans (P. James & Vêzda) Lücking, Sérus. & Vêzda | = Gyalideopsis anastomosans |
| %Jamesiella scotica (P. James) Lücking, Sérus. & Vêzda | = Gyalideopsis scotica |
| Japewia carrollii (Coppins & P. James) Tønsberg | = Japewiella tavaresiana |
| Japewiella carrollii (Coppins & P. James) Printzen | = Japewiella tavaresiana |
K
| Lichen Name | Synonym |
|---|---|
| Karschia adjuncta sensu Walt. Watson, non (Th. Fr.) Arnold | = Buellia pulverea |
| Karschia adjuncta (Th. Fr.) Arnold | = Buellia adjuncta Th. Fr.; incorrectly reported from the British Isles {LF} |
| Karschia advenula (Leight.) Zopf | = Rhizocarpon advenulum {LF} |
| Karschia athallina (Müll. Arg.) Vouaux | = Dactylospora athallina {LF} |
| Karschia bloxamii (Berk.) Sacc. | = Dactylospora bloxamii (Berk. Hafellner {F} |
| Karschia destructans Tobler | = Buellia schaereri |
| Karschia lignyota (Fr.) Sacc. | = Rhizodiscina lignyota (Fr.) Hafellner {F} |
| Karschia pulverulenta (Anzi) Körb. | = Buellia pulverulenta |
| Karschia saxatilis (Schaer.) Rehm | = Dactylospora saxatilis {LF} |
| Karschia scabrosa (Ach.) Rehm | = Epilichen scabrosus |
| Karschia stygia (Berk & M.A. Curtis) Massee | = Dactylospora stygia (Berk. & M.A. Curtis) Hafellner {F} |
| Karschia talcophila (Ach. ex Flot.) Körb. | = incorrectly reported from the British Isles {LF} |
| Karschia thalloides auct. brit. | = of uncertain application |
| Karschia thallophila (Ohlert) Rehm | = Amandinea punctata |
| Kiliasia episema (Nyl.) Hafellner | = Toninia episema {LF} |
| Kiliasia scotinodes (Nyl.) Coppins | = Catillaria scotinodes |
L
| Lichen Name | Synonym |
|---|---|
| Laestaedia olivieri Vouaux | = Telogalla olivieri {LF} |
| Laestaedia psoromoides (Borrer) Vouaux | = Catapyrenium psoromoides |
| Lahmia fueistingii Körb. | = ? Arthrorhaphis grisea {LF} |
| Lahmia plumbina (Anzi) Keissl. | = Toninia plumbina {LF} |
| Lathagrium flaccidum (Ach.) Gray | = Collema flaccidum |
| Lathagrium nigrescens (Huds.) Gray | = Collema nigrescens |
| Lauderlindsaya chlorococca (Leight.) Diederich & Sérus. | = Lauderlindsaya acroglypta |
| Lauderlindsaya erichsenii (Keissl.) Diederich & Sérus. | = Lauderlindsaya acroglypta |
| Lecanactis abscondita (Th. Fr.) Lojka | = Lecanographa abscondita |
| Lecanactis amylacea (Ehrh. ex Pers.) Arnold | = Lecanographa amylacea |
| Lecanactis biformigera (Leight.) Zahlbr. | = Tylothallia biformigera |
| Lecanactis corticola (Nyl.) Lettau | = Bactrospora corticola |
| Lecanactis delimis (Nyl.) A.L. Sm. | = Lecanographa grumulosa |
| Lecanactis dryina (Ach.) Vain. | = Bactrospora dryina |
| Lecanactis dryophila Lettau | = Bactrospora dryina |
| Lecanactis grumulosa (Dufour) Fr. | = Lecanographa grumulosa |
| Lecanactis hemisphaerica J.R. Laundon | = Lecanographa grumulosa |
| Lecanactis homalotropa (Nyl.) Gilenstam | = Bactrospora homalotropa |
| Lecanactis illecebrosa (Dufour) Fr. | = Lecanographa amylacea |
| Lecanactis lyncea (Sm.) Fr. | = Lecanographa lyncea |
| Lecanactis mirifica (Stirt.) A.L. Sm. | = Lecanographa grumulosa |
| Lecanactis monstrosa Bagl. | = Lecanographa grumulosa |
| Lecanactis nothiza (Nyl.) P. James | = Lecanographa grumulosa |
| Lecanactis plocina auct. | = Cresponea premnea [on rock] |
| Lecanactis premnea | = Cresponea premnea |
| Lecanactis premnea f. saxicola (Mudd) Leight. | = Cresponea premnea [on rock] |
| Lecanactis stenhammarii (Fr. ex Stenh.) Arnold | = Dirina massiliensis f. sorediata |
| Lecanactis umbrina Coppins & P. James | = Schismatomma umbrinum |
| Lecania actaea (Nyl.) de Lesd. | = Catillaria lenticularis |
| Lecania albariella (Nyl.) Müll. Arg. | = Lecania turicensis |
| Lecania albocarnea Nyl. | = Lecania hutchinsiae |
| Lecania alpivaga Th. Fr. | = Halecania alpivaga |
| Lecania cœrulescens var. cœruleo-rubella Mudd | = Lecania coeruleorubella |
| Lecania caesia (W. Johnson) A.L. Sm. | = Lecania baeomma |
| Lecania candicans (Dicks.) Stizenb. | = Solenopsora candicans |
| Lecania curvescens (Mudd) A.L. Sm | = Bryonora curvescens |
| Lecania dimera (Nyl.) Th. Fr. | = Lecania dubitans |
| Lecania erysibe auct. brit. p.p. pre-1992 | = various Lecania spp., including Lecania erysibe s.str. [blastidiate], Lecania hutchinsiae, Lecania inundata, Lecania rabenhorstii and Lecania turicensis |
| Lecania erysibe var. cinereofusca Mudd | = Lecanora sp., identity uncertain |
| Lecania erysibe var. sincerior (Nyl.) de Lesd. | = Lecanora sp., identity uncertain |
| Lecania erysibe f. sorediata J.R. Laundon | = Lecania erysibe |
| #Lecania fuscella auct. brit. p.max.p. | = Lecania naegelii |
| Lecania genevensis Müll. Arg. | = Lecania polycycla (Anzi) Lettau; incorrectly reported from the British Isles |
| Lecania globulosa (Flörke) Van den Boom & Sérus. | = Lecania hyalina |
| Lecania helicopis (Wahlenb.) Clauzade & Cl. Roux | = Lecanora helicopis |
| Lecania holophaea (Mont.) A.L. Sm. | = Solenopsora holophaea |
| Lecania holophaea var. glaucospora (Nyl.) A.L. Sm. | = Solenopsora vulturiensis |
| Lecania leucospeirea (Nyl.) A.L. Sm. | = Solenopsora vulturiensis |
| Lecania phaeoleucoides (Nyl.) Zahlbr. | = Lecania turicensis |
| Lecania prosechoides (Nyl.) H. Olivier | = Lecanora helicopis |
| Lecania prosechoidiza (Nyl.) A.L. Sm. | = Lecanora helicopis |
| Lecania ralfsii (Salwey) A.L. Sm. | = Halecania ralfsii |
| Lecania rupicola (Nyl.) P. James | = Lecania baeomma |
| Lecania spodomela (Nyl.) A.L. Sm. | = Halecania spodomela |
| Lecania spodophaeiza (Nyl.) A.L. Sm. | = Lecania aipospila |
| Lecania syringea (Ach.) Th. Fr. | = Lecania fuscella |
| Lecania syringea auct. brit. p.p. | = Lecania naegelii |
| Lecania tenera (Nyl.) Clauzade & Cl. Roux | = Cliostomum tenerum |
| Lecanographa hemisphaerica (J.R. Laundon) Egea & Torrente | = Lecanographa grumulosa |
| Lecanora agardhianoides A. Massal. | = Lecanora agardhiana |
| Lecanora albella var. angulosa (Schreb.) auct. | = Lecanora carpinea |
| Lecanora albella subsp. angulosa (Schreb.) Cromb. | = Lecanora carpinea |
| Lecanora allophana auct. brit. p.p. | = Lecanora chlarotera |
| Lecanora allophana auct. brit. p.p. | = Lecanora horiza |
| Lecanora alpina Sommerf. | = Bellemerea alpina |
| Lecanora angulosa (Schreb.) Ach. | = Lecanora carpinea |
| Lecanora argopholis auct. brit. | = Lecanora frustulosa |
| Lecanora atra (Huds.) Ach. | = Tephromela atra |
| Lecanora atra var. grumosa (Pers.) Ach. | = Tephromela grumosa |
| Lecanora atriseda (Fr.) Nyl. | = Protoparmelia atriseda |
| Lecanora austera Nyl. | = Fuscidea austera |
| Lecanora badia (Hoffm.) Ach. | = Protoparmelia badia |
| Lecanora barkmaneana Aptroot & Herk | = Lecanora barkmaniana |
| Lecanora bockii auct. brit. | = Rimularia badioatra |
| Lecanora caesiocinerea Nyl. ex Malbr. | = Aspicilia caesiocinerea |
| Lecanora calcarea (L.) Sommerf. | = Aspicilia calcarea |
| Lecanora calcarea var. contorta (Hoffm.) Hepp | = Aspicilia contorta |
| Lecanora calcarea var. hoffmannii (Ach.) Sommerf. | = Aspicilia contorta |
| Lecanora cambusiana (Walt. Watson) Cretz. | = Schaereria fuscocinerea |
| Lecanora candelaria auct. | = Candelaria concolor |
| Lecanora candelaria var. polycarpa (Hoffm.) Hook. | = Xanthoria polycarpa |
| Lecanora carnosa (Dicks.) Hook. | = Massalongia carnosa |
| Lecanora cartilaginea (With.) A.L. Sm. | = Squamarina cartilaginea |
| Lecanora cenisia var. soredians Suza | = Lecanora caesiosora |
| Lecanora cerina (Hedw.) Ach. | = Caloplaca cerina |
| Lecanora chlarona auct. | = Lecanora pulicaris |
| Lecanora chlarona f. pinastri (Schaer.) Cromb. | = Lecanora pulicaris |
| Lecanora chlarotera f. rugosella (Zahlbr.) Poelt | = Lecanora rugosella |
| Lecanora chlorophaeoides sensu Walt. Watson | = Lecanora fugiens |
| Lecanora chloropolia sensu J.R. Laundon, non (Erichsen) Almb. | = Pertusaria pupillaris |
| Lecanora chrysophana (Körb.) Nyl. ex Stizenb. | = Ionaspis chrysophana |
| Lecanora cinerea (L.) Sommerf. | = Aspicilia cinerea |
| Lecanora cinerea subsp. epiglypta (Norrl. ex Nyl.) Nyl. | = Aspicilia epiglypta |
| Lecanora cinereorufescens (Ach.) Hepp | = Bellemerea cinereorufescens (Ach.) Clauzade & Cl. Roux; incorrectly reported from the British Isles |
| Lecanora circinata (Pers.) Ach. | = Aspicilia radiosa |
| Lecanora circinatula Nyl. | = Aspicilia radiosa |
| Lecanora coarctata (Sm.) Hook. | = Trapelia coarctata |
| Lecanora coccinea auct. brit. | = Haematomma ochroleucum |
| Lecanora coilocarpa auct. brit. p.p. | = Lecanora gangaleoides |
| Lecanora coilocarpa auct. brit. p.p. | = Tephromela atra |
| Lecanora coilocarpa f. pulicaris (Pers.) Cromb. | = Lecanora pulicaris |
| Lecanora complanatoides A.L. Sm. | = Schaereria fuscocinerea |
| Lecanora coniopta Nyl. | = Rinodina luridescens |
| Lecanora conizaea (Ach.) Nyl. ex Cromb. | = Lecanora expallens |
| Lecanora conizaea auct. brit. | = Lecanora conizaeoides |
| Lecanora contorta (Hoffm.) Steiner | = Aspicilia contorta |
| Lecanora contracta (Th. Fr.) Zahlbr. | = Rimularia badioatra |
| Lecanora coriensis auct. brit., non (Hue) J.R. Laundon | = Lecanora ecorticata |
| Lecanora curvescens (Mudd) Nyl. | = Bryonora curvescens |
| Lecanora decincta Nyl. | = Fuscidea intercincta |
| Lecanora depressa auct. brit. p.max.p. | = Aspicilia laevata |
| Lecanora dicksonii auct. | = Tremolecia atrata |
| Lecanora dispersa f. albescens (Hoffm.) J.R. Laundon | = Lecanora albescens |
| Lecanora dispersa f. verrucosa (Leight.) J.R. Laundon | = Lecanora albescens |
| Lecanora dispersa f. zosterae auct. brit. | = Lecanora zosterae |
| Lecanora effusa (Hoffm.) Ach. | = Lecanora saligna |
| Lecanora epulotica (Ach.) Nyl. ex Cromb. | = Hymenelia epulotica |
| Lecanora exigua auct. brit. p.p. | = Rinodina gennarii |
| Lecanora exigua auct. brit. p.p. | = Rinodina oleae |
| Lecanora expallens subsp. inversa (Nyl.) Cromb. | = Ochrolechia inversa |
| Lecanora exomila Stirt. | = Lecanora crenulata |
| #Lecanora farinaria auct. p.p. | = Lecanora conizaeoides |
| Lecanora farinaria var. conizaeoides (Nyl. ex Cromb.) A.L. Sm. | = Lecanora conizaeoides |
| Lecanora flavida Th. Fr. | = Eiglera flavida |
| Lecanora flotowiana Spreng. [orth. var.] | = Lecanora flotoviana |
| Lecanora fugiens var. chlorophaeoides sensu A.L. Sm. | = Lecanora fugiens |
| Lecanora fulvomellea A.L. Sm. | = Ionaspis lacustris |
| Lecanora galactina Ach. | = Lecanora albescens |
| Lecanora galactina subsp. dispersa (Pers.) Nyl. ex Cromb. | = Lecanora dispersa |
| Lecanora galactina var. dispersoareolata (Schaer.) Mudd | = Lecanora dispersoareolata; incorrectly recorded from the British Isles |
| Lecanora galactina var. dispersoareolata sensu Mudd | = Lecanora muralis |
| Lecanora galactina subsp. dissipata Nyl. | = Lecanora dispersa |
| Lecanora gelida (L.) Ach. | = Placopsis gelida |
| Lecanora geminipara Th. Fr. | = Pertusaria geminipara |
| Lecanora gibbosa auct. p.max.p. | = Aspicilia caesiocinerea |
| Lecanora gibbosa f. porinoidea Flot. | = ? Aspicilia caesiocinerea |
| Lecanora gisleri Poelt & Ullrich | = Lecanora gisleriana |
| Lecanora glabrata (Ach.) Malme | = incorrectly reported from the British Isles |
| Lecanora glaucocarpa f. pruinosa Leight. | = Sarcogyne regularis |
| Lecanora glaucoma (Hoffm.) Ach. | = Lecanora rupicola |
| Lecanora grumosa (Pers.) Du Rietz | = Tephromela grumosa |
| Lecanora hagenii auct., non (Ach.) Ach. | = Lecanora umbrina |
| Lecanora hagenii f. zosterae (Ach.) A.L. Sm. | = Lecanora zosterae |
| Lecanora hagenii var. zosterae (Ach.) Zahlbr. | = Lecanora zosterae |
| Lecanora hoffmannii (Ach.) Müll. Arg. | = Aspicilia contorta |
| Lecanora hookeri (Borrer ex Sm.) Hook. | = Pannaria hookeri |
| Lecanora hypopta (Ach.) Vain. | = Lecidea hypopta |
| Lecanora impudens sensu P. James (1960), non Degel. | = Lecanora jamesii |
| Lecanora insolata H. Magn. | = Aspicilia grisea |
| Lecanora intercedens H. Magn. | = Rimularia intercedens |
| Lecanora intermutans Nyl. | = Aspicilia intermutans |
| Lecanora intricata var. leptacina (Sommerf.) Stizenb. | = Lecanora leptacina |
| Lecanora intricata var. soralifera Suza | = Lecanora soralifera |
| Lecanora inversa Nyl. | = Ochrolechia inversa |
| Lecanora involuta Taylor | = Trapelia glebulosa |
| Lecanora isidioides (Borrer) Nyl. | = Rinodina isidioides |
| Lecanora lactea f. ostreaseda (Harm.) Zahlbr. | = Caloplaca lactea |
| Lecanora lacustris (With.) Nyl. | = Ionaspis lacustris |
| Lecanora laevata (Ach.) Nyl. | = Aspicilia laevata |
| Lecanora laevis Poelt | = Lecanora horiza |
| Lecanora lentigera (Weber) Ach. | = Squamarina lentigera |
| Lecanora leprosescens Sandst. | = Aspicilia leprosescens |
| Lecanora leucophyma Leight. | = Koerberiella wimmeriana |
| Lecanora lilliei (de Lesd.) A.L. Sm. | = ? Aspicilia calcarea |
| Lecanora lindsayi (Walt. Watson) Cretz. | = Lecanora rupicola |
| Lecanora lusca Nyl. | = Aspicilia laevata |
| Lecanora mammillifera Stirt. | = Fuscidea kochiana |
| Lecanora marginata auct. brit., non (Schaer.) Hertel & Rambold | = Lecanora atromarginata |
| Lecanora melanaspis (Ach.) Ach. | = Aspicilia melanaspis |
| Lecanora “mauroides” sensu James et al. (1977) | = Clauzadeana macula |
| Lecanora milvina sensu Taylor (1836) | = Rinodina atrocinerea |
| Lecanora morioides (Blomb. ex Arnold) Blomb. | = Clauzadeana macula |
| Lecanora muralis var. albomarginata (Nyl.) Tomin | = Lecanora muralis |
| Lecanora muralis var. diffracta (Ach.) Rabenh. | = Lecanora muralis |
| Lecanora muralis var. versicolor (Pers.) Tuck. | = Lecanora muralis |
| Lecanora navarrensis Etayo | = Cliostomum flavidulum |
| Lecanora nephaea Sommerf. | = Protoparmelia nephaea |
| Lecanora nephaea auct. brit. p.p. | = Protoparmelia atriseda |
| Lecanora nitens auct., non Ach. | = Protoparmelia montagnei |
| Lecanora ochrococca (Nyl.) Clauzade & Cl. Roux | = Protoparmelia ochrococca |
| Lecanora oleagina Harm. | = Protoparmelia oleagina |
| Lecanora pacifica auct. brit. | = Lecanora sp. (unidentified species) |
| Lecanora pallescens auct. brit. p.p. | = Ochrolechia parella |
| Lecanora pallescens auct. brit. p.p. | = Ochrolechia szatalaensis |
| Lecanora pallida (Schreb.) Rabenh., non Chev. | = Lecanora albella |
| Lecanora parella (L.) Ach. | = Ochrolechia parella |
| Lecanora parella var. turneri (Sm.) Nyl. | = Ochrolechia turneri |
| Lecanora parisiensis Nyl. | = Lecanora horiza |
| Lecanora pelobotryon (Wahlenb.) Sommerf. | = Amygdalaria pelobotryon |
| Lecanora phaeoleucodes Nyl | = Lecania turicensis |
| Lecanora phaeops (Nyl.) Th. Fr. | = Lecidea phaeops |
| Lecanora picea auct. | = Protoparmelia memnonia |
| Lecanora picea (Dicks.) Nyl., non auct. | = Protoparmelia badia |
| Lecanora pityrea Erichsen | = Lecanora conizaeoides |
| Lecanora piniperda Körb. | = Lecanora albellula |
| Lecanora polytropa f. alpigena (Ach.) Schaer. | = Lecanora polytropa |
| Lecanora polytropa f. efflorescens Cromb. | = Lecanora soralifera |
| Lecanora polytropa var. stenotropa (Nyl.) A.L. Sm. | = Lecanora stenotropa |
| Lecanora poriniformis Nyl. | = Ochrolechia xanthostoma |
| Lecanora prevostii (Duby) Th. Fr. | = Hymenelia prevostii |
| Lecanora prevostii f. melanocarpa (Kremp.) Stizenb. | = Hymenelia melanocarpa |
| Lecanora psarophana Nyl. | = Protoparmelia montagnei |
| Lecanora pyracea (Ach.) Nyl. | = Caloplaca holocarpa s. lat. |
| Lecanora pyracea var. ulmicola (DC.) Leight. | = Caloplaca luteoalba |
| Lecanora radiosa (Hoffm.) Schaer. | = Aspicilia radiosa |
| Lecanora radiosa var. karelica Räsänen | = Lecanora swartzii |
| Lecanora recedens (Taylor) Nyl. | = Aspicilia recedens |
| Lecanora rugosa Nyl., non Ach. | = Lecanora chlarotera |
| Lecanora rupicola f. sorediata (Flot.) Zahlbr. | = Lecanora rupicola var. efflorens |
| Lecanora sambuci subsp. dimera (Nyl.) Wheldon & A. Wilson | = Lecania dubitans |
| Lecanora sarcopis (Ach.) Ach. | = Lecanora saligna |
| Lecanora sarcopisioides (A. Massal.) A.L. Sm. [orth. error] | = Lecanora sarcopidoides |
| Lecanora schistina (Nyl.) Arnold | = Lecanora praepostera |
| Lecanora sophodes (Ach.) Ach. | = Rinodina sophodes |
| Lecanora sophodes var. exigua auct. brit. p.max.p., non (Ach.) Cromb. | = Rinodina oleae |
| Lecanora sordida (Pers.) Th. Fr. | = Lecanora rupicola |
| Lecanora sordida var. subcarnea (Lilj.) Th. Fr. | = Lecanora subcarnea |
| Lecanora squamulosa sensu Taylor (1836) | = Protoparmelia badia |
| Lecanora squamulosa sensu Hook. (1833) | = Acarospora fuscata |
| Lecanora squamulosa auct. brit. 19th C p.p. | = Acarospora macrospora |
| #Lecanora subcarnea auct. brit. p.p. | = Lecanora ochroidea [esp. material from SW Britain] |
| Lecanora subcircinata Nyl. | = Aspicilia radiosa |
| Lecanora subdepressa auct. brit. | = Aspicilia laevata |
| Lecanora subfusca auct. p.max.p. | = Lecanora chlarotera |
| Lecanora subfusca f. albella (Pers.) Leight. | = Lecanora albella |
| Lecanora subfusca var. allophana auct. brit. p.max.p. | = Lecanora chlarotera |
| Lecanora subfusca var. allophana f. parisiensis (Nyl.) Hue | = Lecanora horiza |
| Lecanora subfusca f. angulosa (Schreb.) Leight. | = Lecanora carpinea |
| Lecanora subfusca var. angulosa (Schreb.) Mudd | = Lecanora carpinea |
| Lecanora subfusca var. campestris (Schaer.) Rabenh. | = Lecanora campestris |
| Lecanora subfusca var. chlarona auct. | = Lecanora pulicaris |
| Lecanora subfusca var. glabrata auct. brit. | = Lecanora pulicaris |
| Lecanora subfusca var. glabrata (Ach.) Mudd | = Lecanora glabrata; incorrectly reported from the British Isles |
| Lecanora subfusca var. pinastri Schaer. | = Lecanora pulicaris |
| Lecanora subfusca var. zosterae Ach. | = Lecanora zosterae |
| Lecanora subfuscata H. Magn. | = Lecanora argentata |
| Lecanora subimbricata A.L. Sm. | = Aspicilia radiosa |
| Lecanora subimbricata var. circinatula (Nyl.) A.L. Sm. | = Aspicilia radiosa |
| Lecanora subradiosa Nyl. | = Lecanora swartzii |
| Lecanora subrugosa Nyl. | = status of British material uncertain |
| Lecanora subluta Nyl. | = identity uncertain [possibly a KC+ member of the Lecanora dispersa group] |
| Lecanora superiuscula Nyl. | = Miriquidica complanata |
| Lecanora sylvatica (Arnold) Sandst. | = ? Aspicilia laevata |
| #Lecanora symmicta auct. p.p. | = Lecanora aitema |
| Lecanora symmicta var. saepincola (Ach.) Nyl. | = Lecanora aitema |
| Lecanora symmicta var. symmictera (Nyl.) Zahlbr. | = Lecanora symmicta |
| Lecanora symmictera Nyl. | = Lecanora symmicta |
| Lecanora symmictera var. aitema (Ach.) Nyl. | = Lecanora aitema |
| Lecanora tartarea (L.) Ach. | = Ochrolechia tartarea |
| Lecanora tartarea var. frigida (Sw.) Ach. | = Ochrolechia frigida |
| Lecanora tartarea var. gonatodes (Ach.) Ach. | = Ochrolechia frigida |
| Lecanora tartarea subsp. subtartarea Nyl. | = Ochrolechia androgyna |
| Lecanora tenera Nyl. | = Cliostomum tenerum |
| Lecanora thelostoma (Ach. ex J. Harriman) Hook. | = Thrombium thelostomum |
| Lecanora torquata auct. brit. | = Fuscidea cyathoides |
| Lecanora tuberculosa Ach. | = Aspicilia tuberculosa |
| Lecanora turneri (Sm.) Ach. | = Ochrolechia turneri |
| Lecanora umbrina f. zosterae (Ach.) Leight. | = Lecanora zosterae |
| Lecanora umbrina subsp. zosterae (Ach.) Cromb. | = Lecanora zosterae |
| Lecanora umbrosa auct. brit., non Degel. | = Lecanora caesiosora |
| Lecanora urbana Nyl. | = Lecanora albescens |
| Lecanora varia var. aitema (Ach.) Nyl. | = Lecanora aitema |
| Lecanora varia var. denigrata sensu Mudd | = Lecanora aitema |
| Lecanora varia var. orosthea (Ach.) Mudd | = Lecanora orosthea |
| Lecanora varia var. sarcopis (Ach.) Mudd | = Lecanora saligna |
| Lecanora varia var. symmicta Ach. | = Lecanora symmicta |
| Lecanora variabilis f. ecrustacea Nyl. | = Caloplaca alociza |
| Lecanora ventosa (L.) Ach. | = Ophioparma ventosa |
| Lecanora ventosa var. subfestiva Nyl. ex Cromb. | = Ophioparma ventosa |
| Lecanora verrucosa Ach. | = Megaspora verrucosa |
| Lecanora vitellina (Hoffm.) Ach. | = Candelariella vitellina |
| Lecidea abietina (Ach.) Ach. | = Lecanactis abietina |
| Lecidea acutula Nyl. | = Hypocenomyce caradocensis |
| Lecidea advertens Nyl. | = Lecidella carpathica |
| Lecidea aenea auct. brit. | = Lecidea fuscoatra |
| Lecidea aeruginosa Borrer | = Trapeliopsis flexuosa |
| Lecidea aestivalis Ohl. | = Vezdaea aestivalis |
| Lecidea aggerata Mudd | = Micarea sylvicola |
| Lecidea aggregatula Nyl. | = Miriquidica leucophaea |
| Lecidea aglaea Sommerf. | = Calvitimela aglaea |
| Lecidea alabastrites Nyl. | = Micarea alabastrites |
| Lecidea alboatra (Hoffm.) Fr. | = Diplotomma alboatrum |
| Lecidea alboatra f. epipolia auct. brit. p.p. | = Diplotomma alboatrum |
| Lecidea alboatra f. epipolia auct. brit. p.p. | = Diplotomma venustum auct. brit. |
| Lecidea albocaerulescens auct. brit. p.p. | = Porpidia cinereoatra |
| Lecidea albocaerulescens auct. brit. p.p. | = Porpidia contraponenda |
| Lecidea albocaerulescens auct. brit. p.p. | = Porpidia platycarpoides |
| Lecidea albocaerulescens var. alpina Schaer. | = Porpidia rugosa |
| Lecidea albocaerulescens var. flavocaerulescens (Hornem.) Schaer. [nom. rejic. prop.] | = Porpidia flavicunda |
| Lecidea albocaerulescens var. flavocaerulescens auct. brit. p.p. | = Porpidia flavocruenta |
| Lecidea albocaerulescens var. flavocaerulescens auct. [sorediate taxon] | = Porpidia melinodes |
| Lecidea albocaerulescens var. smaragdula M. Knowles ex A.L. Sm. | = Porpidia hydrophila |
| Lecidea albocarnea Nyl. | = Lecania hutchinsiae |
| Lecidea albohyalina auct. brit., non (Nyl.) Th. Fr. | = Lecania cyrtellina |
| Lecidea albohyalina (Nyl.) Th. Fr. | = incorrectly reported from the British Isles |
| Lecidea albosuffusa (Nyl.) Th. Fr. | = Farnoldia jurana |
| Lecidea alienata Nyl. | = Lecidella asema |
| Lecidea alocizoides Leight. | = Rinodina gennarii |
| Lecidea alocizoides auct. brit. p.p. | = Rinodina bischoffii |
| Lecidea alpestris auct. brit. | = Protomicarea limosa |
| Lecidea alumnula Nyl. | = Cecidonia xenophana {LF} |
| Lecidea amphiplecta Stirt. | = Rimularia furvella |
| Lecidea amylacea (Ehrh. ex Pers.) Nyl. | = Lecanographa amylacea |
| Lecidea amylacea sensu Leight. (1858) | = Lecanactis dilleniana |
| Lecidea aniptiza Stirt. | = Micarea denigrata |
| Lecidea anomala auct. brit. p.p. | = Lecania cyrtella |
| Lecidea antrophila Larbal. ex Leight. | = Micarea lutulata |
| Lecidea aphana Nyl. | = Catillaria aphana |
| Lecidea aphanoides Nyl. | = Carbonea intrusa |
| Lecidea arctica Sommerf. | = Frutidella caesioatra |
| Lecidea armeniaca (DC.) Fr. | = Calvitimela armeniaca |
| Lecidea arridens Nyl. | = Trapelia coarctata |
| Lecidea arthroocarpa (Ach.) Ach. [orth. error] | = Immersaria athroocarpa |
| Lecidea ascaridiella Nyl. | = Spirographa fusisporella {LF} |
| Lecidea asema Nyl. | = Lecidella asema |
| Lecidea asperella Stirt. | = Carbonea vorticosa |
| Lecidea asserculorum auct. brit. | = Micarea misella |
| Lecidea assimilata Nyl. | = Micarea assimilata |
| Lecidea assimilata auct. brit. p.p. | = Frutidella caesioatra |
| Lecidea assimilata auct. brit. p.p. | = Lecidea hypnorum |
| Lecidea assimilata auct. brit. p.p. | = Protomicarea limosa |
| Lecidea assimilata auct. brit. p.p. | = Micarea incrassata |
| Lecidea associata Th. Fr. | = Geltingia associata {F} |
| Lecidea athrocarpa (Ach.) Ach. [orth. error] | = Immersaria athroocarpa |
| Lecidea athroocarpa (Ach.) Ach. (‘athrocarpa’) | = Immersaria athroocarpa |
| Lecidea atrata (Ach.) Wahlenb. | = Tremolecia atrata |
| Lecidea atroalba auct. p.p. | = Rhizocarpon hochstetteri |
| Lecidea atroalba auct. p.p. | = Rhizocarpon richardii |
| Lecidea atrobrunnea subsp. saxosa Hertel & Leuckert | = Lecidea syncarpa |
| Lecidea atrofulva Sommerf. | = Miriquidica atrofulva |
| Lecidea atroides Walt. Watson | = Tephromela atra |
| Lecidea atrorufa (Dicks.) Ach. | = Lecidoma demissum |
| Lecidea aurantiaca auct. | = Caloplaca flavorubescens |
| %Lecidea auriculata subsp. brachyspora Th. Fr. | = Lecidea brachyspora |
| Lecidea auriculata var. diducens (Nyl.) Th. Fr. | = Lecidea diducens |
| Lecidea bauschiana (Körb.) Lettau | = Micarea bauschiana |
| Lecidea botryoides (Nyl.) Zahlbr. | = Micarea botryoides |
| Lecidea botryzia Nyl. ex Stirt. | = Micarea lutulata |
| Lecidea breadalbanensis Stirt. | = Japewia tornoensis |
| Lecidea brujeriana (Schaer. ex Dietr.) Leight. | = Ainoa mooreana |
| Lecidea cadubriae (A. Massal.) Th. Fr. | = Lecanora cadubriae |
| Lecidea caesioatra Schaer. | = Frutidella caesioatra |
| Lecidea calcivora A. Massal. | = Clauzadea immersa |
| Lecidea callicarpa Larbal. ex Leight. | = ? Micarea bauschiana |
| Lecidea callista Stirt. | = name of uncertain application (type lost) |
| Lecidea calpodes Stirt. | = name of uncertain application (type lost) |
| Lecidea carpathica (Körb.) Szatala | = Lecidella carpathica |
| Lecidea carrollii Coppins & P. James | = Japewiella tavaresiana |
| Lecidea cechumena Ach. | = Lecidea fuscoatra |
| Lecidea chalybeia Borrer | = Catillaria chalybeia |
| Lecidea chalybeioides Nyl. | = Claurouxia chalybeioides |
| Lecidea cinerascens sensu A.L. Sm., non Nyl. | = Porpidia speirea |
| Lecidea cinereorufa Schaer. | = Schaereria cinereorufa |
| Lecidea cinnabarina auct. brit. | = Pertusaria pupillaris and Schismatomma quercicola |
| Lecidea cinnabarina Sommerf. | = Pyrrhospora cinnabarina (Sommerf.) M. Choisy; incorrectly reported from the British Isles |
| Lecidea citrinella f. arenicola Nyl. | = Arthrorhaphis grisea {LF} |
| Lecidea cladoniaria Nyl. | = Phaeopyxis punctum {LF} |
| Lecidea clavulifera Nyl. | = Psilolechia clavulifera |
| Lecidea coarctata (Sm.) Nyl. | = Trapelia coarctata |
| Lecidea coarctata f. elachista (Ach.) Th. Fr.. | = Trapelia coarctata |
| Lecidea coarctata f. glebulosa (Gray) Arnold. | = Trapelia glebulosa |
| Lecidea coarctata var. glebulosa (Gray) Cromb. | = Trapelia glebulosa |
| Lecidea coarctata var. ornata (Sommerf.) Nyl. | = Trapelia glebulosa |
| Lecidea confertula Stirt. | = Miriquidica leucophaea |
| Lecidea confusior Nyl. | = Catillaria scotinodes |
| Lecidea confusula Nyl. | = Micarea subnigrata |
| Lecidea conglomerata sensu Mudd | = Lecania cyrtellina |
| Lecidea consentiens Nyl. | = Amygdalaria consentiens |
| Lecidea conspurcata (Sm.) Ach. p.p. | = Dirina massiliensis f. sorediata |
| Lecidea contenebricans Nyl. p.p. | = Lecidea lactea |
| Lecidea contenebricans Nyl. p.p. | = Lecidea lapicida |
| Lecidea contigua auct. | = Porpidia macrocarpa |
| Lecidea contigua var. calcarea Fr. | = Porpidia speirea (?p.p.) |
| Lecidea contigua var. flavicunda (Ach.) Nyl. | = Porpidia flavicunda |
| Lecidea contigua var. flavicunda auct. brit. p.p. | = Porpidia flavocruenta |
| Lecidea contigua var. platycarpa (Ach.) Fr. | = Porpidia macrocarpa |
| Lecidea contiguella Nyl. | = Lecidea lapicida |
| Lecidea contortula Stirt. | = Porpidia macrocarpa |
| Lecidea coracina auct. brit. p.p. | = Buellia aethalea |
| Lecidea coracina auct. brit. p.p. | = Orphniospora moriopsis |
| Lecidea coriacella Nyl. | = Fuscidea kochiana |
| Lecidea corollidia Stirt. | = Porpidia platycarpoides |
| Lecidea coronata Borrer, non Hoffm. | = Protopannaria pezizoides |
| Lecidea cristata Leight. | = Unguiculariopsis thallophila {LF} |
| Lecidea crombei Nyl. | = Calvitimela aglaea |
| Lecidea crustulata (Ach.) Spreng. | = Porpidia crustulata |
| Lecidea cuprea Sommerf. | = Biatora cuprea |
| Lecidea cyanothalmia Nyl. | = Porpidia hydrophila |
| Lecidea cyathoides (Ach.) Ach. | = Fuscidea cyathoides |
| Lecidea cyathoides f. corticola auct. brit. | = Fuscidea cyathoides var. cyathoides |
| Lecidea cyclisca sensu A.L. Sm., non (A. Massal.) Malbr. | = Clauzadea metzleri |
| Lecidea dasaea Stirt. | = Placynthiella dasaea |
| Lecidea declinans Nyl. | = Lecidea lapicida |
| Lecidea dealbatula Nyl. | = Cecidonia xenophana {LF} |
| Lecidea decipiens (Hedw.) Ach. | = Psora decipiens |
| Lecidea declinascens Nyl. | = Lecidea lapicida |
| Lecidea decolorans Flörke | = Trapeliopsis granulosa |
| Lecidea decolorans subsp. flexuosa (Fr.) Cromb. | = Trapeliopsis flexuosa |
| Lecidea decolorans var. flexuosa (Fr.) Link | = Trapeliopsis flexuosa |
| Lecidea demarginata auct. brit. | = Micarea lutulata |
| Lecidea demarginata Nyl., non auct. brit. | = Micarea erratica |
| Lecidea demissa (Rustr.) Ach. | = Lecidoma demissum |
| Lecidea demolita auct. brit., non Vain. | = Lecidea lactea |
| Lecidea denigrata (Fr.) Nyl. | = Micarea denigrata |
| Lecidea deparcula Nyl. | = Cecidonia xenophana {LF} |
| Lecidea dicksonii auct. | = Tremolecia atrata |
| Lecidea didymospora Stirt. | = Mycoblastus affinis or M. sanguinarius |
| Lecidea discolorella Nyl. | = Miriquidica leucophaea |
| Lecidea dispansa Nyl. | = Micarea erratica |
| Lecidea dolosa (Nyl.) Vain. | = Lecidella elaeochroma |
| Lecidea dubia Turner & Borrer (1833), non Schaer. (1828) | = Lecidella pulveracea |
| Lecidea dubiosa Zahlbr. | = Lecidella pulveracea |
| Lecidea dufourii Ach. ex Nyl. | = Catillaria contristans |
| Lecidea ecrustacea (Anzi ex Arnold) Arnold | = incorrectly reported from the British Isles |
| Lecidea efflorescens (Hedl.) Erichsen | = Biatora efflorescens |
| Lecidea effusa auct. brit. p.p. | = Lecania cyrtellina |
| Lecidea effusa auct. brit. p.p. | = various Bacidia spp. with pale apothecia |
| Lecidea ehrhartiana (Ach.) Ach. | = Cliostomum corrugatum |
| Lecidea elaeochroma (Ach.) Ach. | = Lecidella elaeochroma |
| Lecidea elata Schaer. | = Lecanora marginata |
| Lecidea enclitica auct. brit. | = Lecidea paraclitica |
| Lecidea endocarpicola Linds. | = ? Toninia verrucarioides |
| Lecidea endocyanea Stirt. | = Schaereria fuscocinerea |
| Lecidea epimarta Nyl. | = Pycnothelia papillaria |
| Lecidea epipolia auct. brit. p.max.p. | = Diplotomma alboatrum |
| Lecidea epipolia auct. brit. p.min.p. | = Diplotomma venustum auct. brit. |
| Lecidea epixanthoidiza auct. p.max.p., non Nyl. | = Biatora chrysantha |
| Lecidea epixanthoidiza Nyl., non auct. brit. | = Biatora efflorescens |
| Lecidea erratica Körb. | = Micarea erratica |
| Lecidea erythrella (Ach.) Borrer ex Hook. | = Caloplaca flavovirescens |
| Lecidea euphorea auct. brit. | = Lecidella elaeochroma |
| #Lecidea expallens sensu Hook. p.p. | = Lecanora orosthea |
| Lecidea expallens (Ach.) Borrer ex Hook. | = Lecanora expallens |
| Lecidea expansa Nyl. ex Norrl. | = Micarea erratica |
| Lecidea fecunda (Th. Fr.) Nyl. ex Stizenb. | = Schadonia fecunda |
| Lecidea fecunda sensu Leight. | = identity uncertain |
| Lecidea ferruginea (Huds.) Hook. | = Caloplaca ferruginea |
| Lecidea ferruginea auct. p.p. | = Caloplaca crenularia |
| Lecidea filamentosa Stirt. | = Lecanora symmicta s. lat. |
| Lecidea flavicunda Ach., auct. brit. p.min.p. | = Porpidia flavicunda |
| Lecidea flavicunda auct. brit. p.max.p. | = Porpidia flavocruenta |
| Lecidea flexuosa (Fr.) Nyl. | = Trapeliopsis flexuosa |
| Lecidea flexuosa f. aeruginosa (Borrer) Leight. | = Trapeliopsis flexuosa |
| Lecidea flexuosa var. aeruginosa (Borrer) Mudd | = Trapeliopsis flexuosa |
| Lecidea formosa Bagl. & Carestia | = Lecanora formosa |
| Lecidea friesii Ach. | = Hypocenomyce friesii |
| Lecidea fucata Stirt. | = Mycoblastus fucatus |
| Lecidea fuliginea Ach. | = Placynthiella icmalea |
| Lecidea fumosa var. deusta sensu Mudd | = Lecidea fuscoatra |
| Lecidea fumosa var. grisella Flörke ex Schaer. | = Lecidea fuscoatra |
| Lecidea furvella Nyl. ex Mudd | = Rimularia furvella |
| Lecidea fuscescens Sommerf. | = Lecanora fuscescens |
| Lecidea fuscoatra var. grisella (Flörke ex Schaer.) Nyl. | = Lecidea fuscoatra |
| Lecidea fuscocinerea auct. | = Rimularia gyrizans |
| Lecidea fuscocinerea Nyl. | = Schaereria fuscocinerea |
| Lecidea fuscorubens (Nyl.) Nyl. | = Clauzadea monticola |
| Lecidea fuscolutea (Dicks.) Ach. | = Brigantiaea fuscolutea |
| Lecidea gagei sensu Hook. p.p. | = Catillaria lenticularis |
| Lecidea gagei (Sm.) A.L. Sm., non Hook. | = Herteliana gagei |
| Lecidea gelatinosa Flörke | = Trapeliopsis gelatinosa |
| Lecidea gelatinosa subsp. prasinorufa sensu A.L. Sm. p.p. | = Trapeliopsis gelatinosa |
| Lecidea gelatinosa subsp. prasinorufa sensu A.L. Sm. p.p. | = Trapeliopsis granulosa |
| Lecidea geographica (L.) Schaer. | = Rhizocarpon geographicum |
| Lecidea geographica var. atrovirens (L.) Schaer. | = Rhizocarpon geographicum |
| Lecidea geographica var. sphaerica (Schaer.) Leight. | = Rhizocarpon viridiatrum |
| Lecidea geographica f. urceolata Schaer. | = Rhizocarpon geographicum |
| Lecidea geomaea Taylor | = Micarea lignaria var. lignaria |
| Lecidea geophana Nyl. | = Steinia geophana |
| Lecidea glaucolepidea Nyl. | = Trapeliopsis glaucolepidea |
| Lecidea globifera Ach. | = Psora globifera |
| Lecidea globularis (Nyl.) Lamy | = Micarea misella |
| Lecidea glomerulosa auct. brit. | = Lecidella elaeochroma |
| Lecidea goniophila sensu H. Magn. | = Lecidella anomaloides |
| Lecidea goniophila auct. brit. p.p. | = Lecidella stigmatea |
| Lecidea gothoburgensis H. Magn. | = Fuscidea gothoburgensis |
| Lecidea granulosa (Hoffm.) Ach. | = Trapeliopsis granulosa |
| Lecidea granulosa subsp. flexuosa (Fr.) Th. Fr. | = Trapeliopsis flexuosa |
| Lecidea granulosa var. flexuosa (Fr.) Schaer. | = Trapeliopsis flexuosa |
| Lecidea griffithii (Sm.) Hook. | = Cliostomum griffithii |
| Lecidea griseoatra (Flot.) Schaer. | = Miriquidica griseoatra |
| Lecidea griseoatra sensu A.L. Sm. | = Schaereria fuscocinerea |
| Lecidea grumosa Leight. | = Agyrium rufum {F} |
| Lecidea gyrizans Nyl. | = Rimularia gyrizans |
| Lecidea gyrophorica Tønsberg | = Biatora chrysantha |
| Lecidea helvola auct. brit., non (Körb. ex Hellb.) Hedl. | = Vezdaea aestivalis |
| Lecidea helvola (Körb. ex Hellb.) Hedl. | = Biatora helvola; incorrectly reported from British Isles |
| Lecidea hemipolioides Nyl. | = Micarea peliocarpa |
| Lecidea henrica Larbal. ex Nyl. | = Herteliana gagei |
| Lecidea humigena Taylor | = Aphanopsis coenosa |
| Lecidea humida (Kullh.) Th. Fr. | = Gregorella humida |
| Lecidea humosa (Hoffm.) Leight. | = Placynthiella uliginosa |
| Lecidea hyalinella (Körb.) Jatta | = Lecidea erythrophaea |
| Lecidea hypocyanea Stirt. | = Catillaria contristans |
| Lecidea hydrophila Fr. | = Porpidia hydrophila |
| Lecidea icmalea Ach. | = Placynthiella icmalea |
| Lecidea icmadophila (Hoffm.) Ach. | = Icmadophila ericetorum |
| Lecidea illita Nyl. | = Rimularia badioatra |
| Lecidea ilyophora Stirt. | = Micarea melaena |
| Lecidea immersa (Hoffm.) Ach. | = Clauzadea immersa |
| Lecidea imponens Leight. | = Carbonea vitellinaria {LF} |
| Lecidea incana auct. brit. 19th C | = Megalospora tuberculosa |
| Lecidea incompta Borrer | = Bacidia incompta |
| Lecidea indigula Nyl. | = Herteliana gagei |
| Lecidea infidula Nyl. | = Micarea bauschiana |
| Lecidea inquinans (Tul.) Nyl. | = Micarea inquinans |
| Lecidea inserina Nyl. | = ? Miriquidica griseoatra |
| Lecidea insidiosa Th. Fr. | = Ramboldia insidiosa |
| Lecidea insita Stirt. | = Steinia geophana |
| Lecidea instratula Nyl. | = Clauzadeana macula |
| Lecidea insularis Nyl. | = Rimularia insularis |
| Lecidea interpolata Stirt. | = Rinodina interpolata |
| Lecidea interludens Nyl. | = Fuscidea kochiana |
| Lecidea irrubata (Ach.) Ach. | = Protoblastenia rupestris |
| Lecidea jurana Schaer. | = Farnoldia jurana |
| Lecidea kaleida Taylor | = Buellia ocellata |
| Lecidea kochiana Hepp | = Fuscidea kochiana |
| Lecidea kochiana var. lygaea (Ach.) Leight. | = Fuscidea lygaea |
| Lecidea lapicida sensu A.L. Sm. p.p. | = Lecidea lactea |
| Lecidea lapicida var. lactea (Flörke ex Schaer.) V. Wirth | = Lecidea lactea |
| %Lecidea lapicida var. pantherina Ach. | = Lecidea lactea |
| Lecidea lapillicola Vain. | = Micarea lapillicola |
| Lecidea latens Taylor | = Micarea tuberculata |
| Lecidea latypea auct. brit. p.p. | = Lecidella asema |
| Lecidea latypea auct. brit. p.p. | = Lecidella stigmatea |
| Lecidea latypea f. latypiza (Nyl.) A.L. Sm. | = Lecidella carpathica |
| Lecidea latypiza Nyl. | = Lecidella carpathica |
| Lecidea laxula Nyl. | = Micarea lutulata |
| Lecidea leiotea Nyl. | = Fuscidea lygaea |
| Lecidea leptostigma Nyl. | = Geltingia associata {LF} |
| Lecidea leucophaea (Flörke ex Rabenh.) Nyl. | = Miriquidica leucophaea |
| Lecidea leucophaeoides Nyl. | = Miriquidica lulensis |
| Lecidea leucophaeopsis Nyl. | = Stereocaulon leucophaeopsis |
| Lecidea leucoplaca auct. | = Megalaria grossa |
| Lecidea liljenstroemii Du Rietz | = Miriquidica nigroleprosa var. liljenstroemii |
| Lecidea limborina (Nyl.) Lamy | = Rimularia limborina |
| Lecidea limitata auct. | = Lecidella elaeochroma |
| Lecidea limitata var. soralifera (Erichsen) J.R. Laundon | = Lecidella elaeochroma f. soralifera |
| Lecidea limosa Ach. | = Protomicarea limosa |
| Lecidea lithophiliza Nyl. | = Lecidea lithophila |
| Lecidea lithophiloides Müll. Arg. | = Lecidea swartzioidea |
| Lecidea littorella Nyl. | = Fellhanera bouteillei |
| Lecidea livescens Leight. | = Lecidea fuscoatra |
| Lecidea lopadioides (Th. Fr.) Grummann | = Ainoa mooreana |
| Lecidea lucida (Ach.) Ach. | = Psilolechia lucida |
| Lecidea lulensis Hellb. | = Miriquidica lulensis |
| Lecidea lugubris Sommerf. | = Ropalospora lugubris |
| Lecidea lurida Ach. | = Psora lurida |
| Lecidea lutea (Dickson) Borrer ex Hook. | = Dimerella lutea |
| Lecidea luteoatra auct. brit. p.p. | = Lecidea lapicida |
| Lecidea lygaea Ach. | = Fuscidea lygaea |
| Lecidea macrocarpa (DC.) Steud. | = Porpidia macrocarpa |
| Lecidea macrocarpa f. calcarea sensu U.K. Duncan (1961) | = ? Porpidia speirea |
| Lecidea macrocarpa f. flavicunda (Arnold) Zahlbr. | = Porpidia flavicunda |
| Lecidea macrocarpa f. flavicunda auct. brit. p. max p. | = Porpidia flavocruenta |
| Lecidea macula Taylor | = Clauzadeana macula |
| Lecidea mammillaris Dufour | = Toninia tumidula |
| Lecidea margaritacea var. conspurcata (Sm.) Ach. p.p. | = Dirina massiliensis f. sorediata |
| Lecidea matildae H. Magn. | = Lecidea confluentula |
| Lecidea marginata Schaer. | = Lecanora marginata |
| Lecidea meiocarpa auct. brit., non Nyl. | = Lecania cyrtellina |
| Lecidea meiococca Nyl. | = Lecidella meiococca |
| Lecidea melaphana Nyl. | = Carbonea intrusa |
| Lecidea melastigma Taylor | = Catillaria chalybeia |
| Lecidea melinodes (Körb.) H. Magn. & Lynge | = Porpidia melinodes |
| Lecidea mersata Stirt. | = Porpidia hydrophila |
| Lecidea mesotropa Nyl. | = Miriquidica leucophaea |
| Lecidea mesotropiza Nyl. | = Lecanora formosa |
| Lecidea mesotropoides Nyl. | = ? Miriquidica leucophaea |
| Lecidea metzleri (Körb.) Th. Fr. | = Clauzadea metzleri |
| Lecidea micrococca (Körb.) Cromb. | = Micarea micrococca |
| Lecidea milliaria Fr. | = Micarea lignaria var. lignaria |
| Lecidea milliaria var. saxigena Leight., nom. nud. | = Micarea lignaria var. lignaria |
| Lecidea minuta auct. brit. p.p. | = Lecania cyrtellina |
| Lecidea minuta auct. brit. p.p. | = Lecidea erythrophaea |
| Lecidea minuta (Schaer.) A. Massal. non auct. brit. | = Lecania hyalina |
| Lecidea modesta Müll. Arg. | = Catillaria modesta |
| Lecidea modesta auct. brit. p.p. | = Micarea lutulata |
| Lecidea moestula Nyl. | = Micarea erratica |
| Lecidea mollis (Wahlenb.) Nyl. | = Fuscidea mollis |
| Lecidea monticola (Ach.) Schaer. | = Clauzadea monticola |
| Lecidea mooreana Carroll | = Ainoa mooreana |
| Lecidea muddii Salwey ex Mudd, nom. inval. | = Halecania ralfsii |
| Lecidea mullensis Stirt. | = Rimularia mullensis |
| Lecidea muscorum (Sw.) Ach. | = Bacidia bagliettoana |
| Lecidea mutabilis auct. brit., non Fée | = Japewiella tavaresiana |
| Lecidea myriocarpa (DC.) Röhl. | = Amandinea punctata |
| Lecidea nigrificans Nyl. | = Halecania spodomela |
| Lecidea nigroclavata Nyl. | = Catillaria nigroclavata |
| Lecidea nigrocruenta Anzi | = Porpidia macrocarpa f. nigrocruenta |
| Lecidea nigroglomerata Leight. ex Cromb. | = Lecanora formosa |
| Lecidea nigrogrisea Nyl. | = Lecidea siderolithica |
| Lecidea nigroleprosa (Vain.) H. Magn. | = Miriquidica nigroleprosa |
| Lecidea nitescens Leight. | = ? Porpidia platycarpoides |
| Lecidea nitida sensu Leight. | = Clauzadeana macula |
| Lecidea obsoleta Nyl. | = Lecidea lactea |
| Lecidea ocellata subsp. praeponens Nyl. | = Buellia ocellata |
| Lecidea ochracea (Hepp) Zwackh | = Clauzadea monticola |
| Lecidea ochrococca Nyl. | = Protoparmelia ochrococca |
| Lecidea oligotropha J.R. Laundon | = Placynthiella oligotropha |
| Lecidea orosthea (Ach.) Ach. | = Lecanora orosthea |
| Lecidea orphnaeilla Stirt. | = Rimularia furvella |
| Lecidea ostreata (Hoffm.) Schaer. | = Hypocenomyce scalaris |
| Lecidea oxyspora (Tul.) Nyl. | = Nesolechia oxyspora {LF} |
| Lecidea pachycarpa (Delise ex Duby) Dufour | = Megalospora tuberculosa |
| Lecidea pammicta Stirt. | = Lecidea lactea |
| Lecidea panaeola auct. brit. | = Amygdalaria pelobotryon |
| Lecidea pantherina (Ach.) Th. Fr. | = Lecidea lactea |
| Lecidea parasema auct. p.p. | = Lecidella elaeochroma |
| Lecidea parasema var. elaeochroma Ach. | = Lecidella elaeochroma |
| Lecidea parasema var. flavens Nyl. | = Lecidella elaeochroma |
| Lecidea parmeliarum Sommerf. | = Abrothallus parmeliarum {LF} |
| Lecidea patavina A. Massal. | = Lecidella patavina |
| Lecidea paucula Nyl. | = Micarea lutulata |
| Lecidea pedatula Nyl. | = Ascomycota identity uncertain |
| Lecidea pelobotrya (Wahlenb.) Leight. | = Amygdalaria pelobotryon |
| Lecidea pelobotryon (Wahlenb.) Leight. | = Amygdalaria pelobotryon |
| Lecidea percontigua Nyl. | = Porpidia platycarpoides |
| Lecidea periplaca Nyl. | = Fuscidea lygaea |
| Lecidea pernigra Hertel | = Lecidea promixta |
| Lecidea perobscura Nyl. | = Lecanora symmicta s. lat. |
| Lecidea perustula Nyl. | = Clauzadeana macula |
| Lecidea petraea (Wulfen) Ach. | = Rhizocarpon petraeum |
| Lecidea petrosa Arnold | = Farnoldia jurana |
| Lecidea phaeenterodes Nyl. | = Porpidia rugosa |
| Lecidea phylliscina Nyl. | = Porpidia macrocarpa |
| Lecidea pilati (Hepp) Körb. | = Adelolecia pilati |
| Lecidea pineti Ach. | = Dimerella pineti |
| Lecidea pinicola sensu Borrer | = Amandinea punctata |
| Lecidea pissodes Stirt. | = Clauzadeana macula |
| Lecidea poliodes Nyl. | = Micarea lutulata |
| Lecidea polioides Nyl. [orth. error] | = Micarea lutulata |
| Lecidea polyantha Taylor ex Leight. | = Lecidella asema |
| Lecidea polycarpa Flörke | = Lecidea lactea s. lat. |
| Lecidea polycarpella Erichsen | = Micarea polycarpella |
| Lecidea polysita Stirt. | = Bacidia polychroa |
| Lecidea praerimata Nyl. | = Dirina massiliensis f. sorediata |
| Lecidea praeruptorum Du Rietz & H. Magn. | = Fuscidea praeruptorum |
| Lecidea prasina (Fr.) Schaer. | = Micarea prasina |
| #Lecidea prasina auct. p.p. | = Micarea micrococca |
| Lecidea prasinula (Wedd.) Hertel, non auct brit. | = Lecidella scabra |
| Lecidea prasinula auct. p.max.p. | = Lecidella meiococca |
| Lecidea prasinolepis auct. brit., non (Nyl.) Th. Fr. | = Biatora vernalis |
| Lecidea privigna Ach. | = Sarcogyne privigna |
| Lecidea privigna auct. brit. p.p. | = Polysporina simplex |
| Lecidea prominula Borrer | = Lecidella stigmatea |
| Lecidea promiscens auct. brit. | = ? Lecidea auriculata |
| Lecidea prostratula Stirt. | = Lecidea fuscoatra |
| Lecidea protrusa auct. brit. | = Lecidella scabra |
| Lecidea protrusa f. meiococca (Nyl.) A.L. Sm. | = Lecidella meiococca |
| Lecidea pruinosa auct. | = Sarcogyne regularis |
| Lecidea pseudogranulosa Coppins & P. James ad int. | = Trapeliopsis pseudogranulosa |
| Lecidea pulveracea Flörke ex Th. Fr. | = Lecidella pulveracea |
| Lecidea pulverea Borrer | = Megalaria pulverea |
| Lecidea puncta (A. Massal.) Jatta [orth. error] | = Phaeopyxis punctum {LF} |
| Lecidea punctum (A. Massal.) Jatta | = Phaeopyxis punctum {LF} |
| Lecidea quadricolor (Dicks.) Borrer | = Trapeliopsis granulosa |
| Lecidea quernea (Dicks.) Ach. | = Pyrrhospora quernea |
| Lecidea relicta Stirt. | = Lecidea stirtoniana Zahlbr.; identity uncertain, type not traced |
| Lecidea recensa Stirt. | = Fuscidea recensa |
| Lecidea restricta Stirt. | = Lecidella stigmatea |
| Lecidea rhizobola Nyl. | = Acarospora rhizobola |
| Lecidea rivulosa Ach. | = Fuscidea cyathoides |
| Lecidea rivulosa auct. brit. 19th C p.p. | = Fuscidea lygaea |
| Lecidea rosella auct. brit. p.p. | = Bacidia phacodes |
| Lecidea rosella auct. brit. p.p. | = Bacidia rubella |
| Lecidea rubidula Nyl. | = Protoblastenia cyclospora |
| Lecidea rubiformis (Ach.) Wahlenb. | = Psora rubiformis |
| Lecidea rufofusca auct. brit., non (Anzi) Nyl. | = Japewiella tavaresiana |
| Lecidea rupestris (Scop.) Hook. | = Protoblastenia rupestris |
| Lecidea rusticella Nyl. | = Micarea bauschiana |
| Lecidea rusticula Nyl. | = ? Lecidea ahlesii |
| Lecidea sabuletorum f. simplicior Nyl. | = Catillaria contristans |
| Lecidea salweii Borrer [orth. error] | = Trapeliopsis wallrothii |
| Lecidea salweyi Borrer | = Trapeliopsis wallrothii |
| Lecidea sanguinaria (L.) Ach. | = Mycoblastus sanguinarius |
| Lecidea sanguinaria var. affinis (Schaer.) Nyl. | = Mycoblastus affinis |
| Lecidea sanguinaria var. endorhoda Th. Fr. | = Mycoblastus sanguinarius |
| Lecidea sanguinaria var. melina Kremp. ex Nyl. | = Mycoblastus affinis |
| #Lecidea sanguineoatra sensu A.L. Sm. p.p. | = Lecidea hypnorum |
| Lecidea sanguineoatra var. templetonii (Taylor) Vain. | = Lecidea hypnorum |
| Lecidea sapinea f. aeruginosa (Borrer) Zahlbr. | = Trapeliopsis flexuosa |
| Lecidea saxatilis Schaer. | = Dactylospora saxatilis {LF} |
| Lecidea scabra Taylor | = Lecidella scabra |
| Lecidea scalaris (Ach.) Ach. | = Hypocenomyce scalaris |
| Lecidea scapanaria Carrington | = Dactylospora scapanaria (Carrington) D. Hawksw. {F} |
| Lecidea scotinodes Nyl. | = Catillaria scotinodes |
| Lecidea scutellata Walt. Watson | = Porpidia crustulata |
| Lecidea scutulata Stirt. | = Amygdalaria consentiens |
| Lecidea segregans Nyl. | = Lecidea pycnocarpa |
| Lecidea semipallens Nyl. | = Micarea bauschiana |
| Lecidea sincerula Nyl. ex Cromb. | = Tremolecia atrata |
| Lecidea scabrosa auct.brit. p.p., non Ach. | = Lecidella elaeochroma |
| Lecidea scabrosa auct. brit. p.p., non Ach. | = Lecidella asema |
| Lecidea scabrosa Ach. | = Epilichen scabrosus |
| Lecidea simplex (Davies) Hook. | = Polysporina simplex |
| Lecidea socialis (Körb.) Cromb. | = Schadonia fecunda |
| Lecidea sorediza Nyl. | = Porpidia tuberculosa |
| Lecidea soredizodes (Lamy) Sandst. | = Porpidia soredizodes |
| Lecidea speirea (Ach.) Ach. | = Porpidia speirea |
| Lecidea speirea auct. brit. p.p. | = Rhizocarpon umbilicatum |
| Lecidea sphaeroides auct. brit. | = various lecidioid lichens with pale, biatorine apothecia |
| Lecidea sporodiza Stirt. | = Trapeliopsis flexuosa |
| Lecidea sporotea Stirt. | = Miriquidica leucophaea |
| Lecidea stellulata Tayl. | = Buellia stellulata |
| Lecidea stenotera auct. brit. p.p. | = Protomicarea limosa |
| Lecidea stenotera auct. brit. p.p. | = Micarea incrassata |
| Lecidea steriza (Ach.) Vain. | = Porpidia macrocarpa |
| Lecidea stigmatea Ach. | = Lecidella stigmatea |
| Lecidea stirtoniana Zahlbr. | = identity uncertain, type not traced |
| Lecidea subcinerascens auct. brit., non Nyl. | = Lecidea lactea |
| Lecidea subdita Nyl. | = Lecanora formosa |
| Lecidea subfurva Nyl. | = Schaereria cinereorufa |
| Lecidea subgyratula Nyl. | = Rimularia limborina |
| Lecidea subincongrua Nyl. | = Lecidella asema |
| Lecidea subinfidula Nyl. | = Micarea tuberculata |
| Lecidea subkochiana sensu Cromb. | = Lecidea lactea |
| Lecidea sublatypea Leight. ex Cromb. | = Carbonea vorticosa |
| Lecidea sublivescens (Nyl. ex Cromb.) P. James | = Lecanora sublivescens |
| Lecidea submoestula Nyl. | = Micarea subconfusa |
| Lecidea subplumbea Anzi | = ? Miriquidica griseoatra |
| Lecidea subsequens Nyl. | = Lecidella stigmatea |
| Lecidea subumbonata auct. brit. | = Porpidia speirea |
| Lecidea subumbonella Lamy | = Porpidia speirea |
| Lecidea subviridescens Nyl. | = Micarea subviridescens |
| Lecidea sulphurea (Hoffm.) Wahlenb. | = Lecanora sulphurea |
| Lecidea supersparsa Nyl. | = Carbonea supersparsa {LF} |
| Lecidea sylvicola Flot. | = Micarea sylvicola |
| Lecidea sylvicola var. hellbomii (J. Lahm) Leight. | = Micarea sylvicola |
| Lecidea sylvicola var. infidula (Nyl.) Leight. | = Micarea bauschiana |
| Lecidea symmicta (Ach.) Ach. | = Lecanora symmicta |
| #Lecidea symmicta auct. p.p. | = Lecanora aitema |
| Lecidea symmicta var. saepincola (Ach.) Hedl. | = Lecanora aitema |
| Lecidea symmicta var. symmictera (Nyl.) Hedl. | = Lecanora symmicta |
| Lecidea symmictella Nyl. | = ? Lecanora symmicta |
| Lecidea sympathetica Taylor ex Leight. | = Clauzadea monticola |
| Lecidea tabidula Nyl. | = Lecidea pycnocarpa |
| Lecidea taeniarum (Malme.) | = Fuscidea austera |
| Lecidea tantilla Nyl. | = Strangospora moriformis |
| Lecidea tantilla sensu Leight. (1879) p.p. | = Strangospora pinicola |
| Lecidea taylorii Mudd | = Herteliana gagei |
| Lecidea templetonii Taylor | = Lecidea hypnorum |
| Lecidea tenebrans Nyl. | = Porpidia macrocarpa |
| Lecidea tenebrica Nyl. | = Fuscidea lygaea |
| Lecidea tenebricosa auct. brit. p.p. | = Japewiella tavaresiana |
| Lecidea tenebricosa auct. brit. p.p. | = Lecidea erythrophaea |
| Lecidea tenebrosa Flot. | = Schaereria fuscocinerea |
| Lecidea tenera Nyl. | = Cliostomum tenerum |
| Lecidea tephrizans Leight. | = Micarea erratica |
| Lecidea tornoensis Nyl. | = Japewia tornoensis |
| Lecidea tricolor Nyl. | = Cliostomum griffithii |
| Lecidea trochodes (Taylor ex Leight.) Cromb. | = Rimularia limborina |
| Lecidea truncigena (Ach.) Nyl. | = Gyalecta truncigena |
| Lecidea tumidior (Nyl.) Vain. | = ? Miriquidica griseoatra |
| Lecidea turfosa (A. Massal.) Jatta | = Micarea turfosa |
| Lecidea tumida A. Massal. | = Porpidia tuberculosa |
| Lecidea turneri Leight. | = Toninia aromatica |
| Lecidea uliginascens Stirt. | = ? Placynthiella hyporhoda |
| Lecidea uliginosa (Schrad.) Ach. | = Placynthiella uliginosa |
| Lecidea uliginosa auct. brit. p.p. | = Placynthiella icmalea |
| Lecidea uliginosa var. humosa Leight., non (Hoffm.) Leight. | = Placynthiella oligotropha |
| Lecidea ulmicola (DC.) Borrer ex Hook. | = Caloplaca luteoalba |
| Lecidea umbonata auct. brit., non (Hepp) Mudd | = Cecidonia umbonella {LF} |
| Lecidea umbonella Nyl. | = Cecidonia umbonella {LF} |
| Lecidea umbonella var. alumnula (Nyl.) Hertel | = Cecidonia xenophana {LF} |
| Lecidea umbrina Ach. | = Scoliciosporum umbrinum |
| Lecidea umbrina var. compacta (Körb.) Leight. | = Scoliciosporum umbrinum |
| Lecidea urceolata auct. brit., non Ach. | = Bactrospora homalotropum |
| Lecidea vainioi H. Magn. | = Micarea sylvicola |
| Lecidea valentior Nyl. | = Lecidea ahlesii |
| Lecidea vernalis (L.) Fr. | = Biatora vernalis |
| Lecidea verruculosa (Sm.) Borrer | = Buellia aethalea |
| Lecidea verruculosa auct. p.p. | = Buellia ocellata |
| Lecidea verruculosa var. praeponens (Nyl.) Leight. | = Buellia ocellata |
| Lecidea viridiatra auct. brit. | = Lecidea lapicida |
| Lecidea viridans (Flot.) Lamy | = Lecidella viridans |
| Lecidea viridescens (Schrad.) Ach. | = Trapeliopsis viridescens |
| Lecidea vitellinaria Nyl. | = Carbonea vitellinaria {LF} |
| Lecidea vorticosa (Flörke) Körb. | = Carbonea vorticosa |
| Lecidea wallrothii Flörke ex Spreng. | = Trapeliopsis wallrothii |
| Lecidea watsonii P. James | = Lecidea lichenicola |
| Lecidea xanthococca Sommerf. | = Pycnora xanthococca |
| Lecidella bullata auct. brit. | = Lecanora formosa |
| %Lecidella effugiens (Nilson) Knoph & Hertel | = Lecidella asema s. lat. {CR} |
| %Lecidella elaeochromoides (Nyl.) Knoph & Hertel | = Lecidella asema s. lat. {CR} |
| Lecidella euphorea (Flörke) Hertel | = Lecidella elaeochroma {CR} |
| Lecidella subincongrua (Nyl.) Hertel & Leuckert | = Lecidella asema |
| Lecidella prasinula auct. | = Lecidella meiococca |
| Lecidella prasinula (Wedd.) Hertel, non auct. | = Lecidella scabra |
| Leciographa centrifuga (A. Massal.) Rehm | = Opegrapha rupestris {LF} |
| Leciographa glaucomaria (Nyl.) A.L. Sm. | = Arthonia varians {LF} |
| Leciographa inspersa auct. | = Dactylospora parasitica {LF} |
| Leciographa parasitica A. Massal. | = Opegrapha parasitica {LF} |
| Leciographa parasitica auct.brit. p.max.p. | = Opegrapha rupestris {LF} |
| Leciographa parellaria (Nyl.) Sacc. & D. Sacc. | = Dactylospora parellaria {LF} |
| Leciographa persimilis Nyl. | = ? Dactylospora scapanaria (Carrington) D. Hawksw. {F} |
| Leciographa plumbina Anzi | = Toninia plumbina {LF} |
| Leciographa scapanaria (Carrington) A.L. Sm. | = Dactylospora scapanaria (Carrington) D. Hawksw. {F} |
| Leciographa zwackhii A. Massal. ex Zwackh | = Opegrapha zwackhii {LF} |
| Lecothecium nigrum (Huds) A. Massal. | = Placynthium nigrum |
| Lecothecium nigrum f. fuscum (Hepp) Mudd | = Placynthium nigrum |
| Leiophloea fallax (Nyl.) H. Reidl | = Arthopyrenia analepta {F} |
| %Leiorreuma lyellii (Sm.) Staiger | = Phaeographis lyellii |
| Lemmopsis leptogiella (Nyl.) A.L. Sm. | = Porocyphus leptogiella |
| Lempholemma albonigrum H. Magn. | = Lempholemma cladodes |
| Lempholemma fennicum (Räsänen) Degel. | = Lempholemma intricatum |
| Lempholemma chalazanellum (Nyl.) Zahlbr. | = ? Lempholemma polyanthes [some authors regard L. chalazanellum as a separate species] |
| Lempholemma chalazanodes (Nyl.) Zahlbr. | = ? Lempholemma polyanthes |
| Lempholemma confertum (Ach.) Zahlbr. | = ? Collema tenax |
| Lempholema isidioides (Nyl. ex Arnold) H. Magn. | = incorrectly reported from the British Isles |
| Lempholemma myriococcum (Ach.) Th. Fr. | = Lempholemma polyanthes |
| Lepidoma demissum (Rutstr.) M. Choisy | = Lecidoma demissum |
| Lepidoma triptophyllum (Ach.) Gray | = Parmeliella triptophylla |
| Lepraria aeruginosa (Weiss) Sm. | = Scytonema hofmannii Agardh ex Bornet & Flahault {cyanobacterium} |
| Lepraria aeruginosa auct. p.max.p. | = various Lepraria s.lat. species, especially L. incana and Botryolepraria lesdainii |
| Lepraria aeruginosa auct. p.p. | = Lepraria lobificans |
| Lepraria alba Ach., nom. superfl. | = application uncertain |
| Lepraria botryoides (L.) Ach. | = Lichenomphalia umbellifera |
| Lepraria botryoides auct. p.p. | = Desmococcus olivaceus (Pers. ex Ach.) J.R. Laundon, and other non-lichenized green algae on trees, rocks and stonework |
| Lepraria candelaris (L.) Fr. | = Chrysothrix candelaris |
| Lepraria chlorina (Ach.) Ach. | = Chrysothrix chlorina |
| Lepraria cinereosulphurea Flörke | = application uncertain (type lost) |
| #Lepraria crassissima auct. brit. p.max.p. | = Lepraria nivalis |
| Lepraria decolorans (Turner & Borrer ex Sm.) Almb. | = Schismatomma decolorans |
| Lepraria finkii (de Lesd. ex Hue) R.C. Harris | = Lepraria lobificans |
| Lepraria flava (Schreb.) Sm. | = Chrysothrix candelaris |
| Lepraria frigida Laundon {CR} | = Lepraria eburnea |
| Lepraria jolithus (L.) Ach. | = Trentepohlia jolithus (L.) Wallr. [alga] |
| Lepraria lactea (L.) Hue | = application uncertain |
| Lepraria lesdainii (Hue) R.C. Harris | = Botryolepraria lesdainii |
| Lepraria lutescens (Hoffm.) Sm. | = Pertusaria flavida |
| Lepraria murorum Hook. | = Desmococcus olivaceus (Pers. ex Ach.) J.R. Laundon {non-lichenized alga} |
| #Lepraria neglecta auct. p.p. | = Lepraria neglecta |
| Lepraria nigra Turner & Borrer ex Sm. | = Monodictys cellulosa S.J. Hughes {F} |
| Lepraria ochracea Turner & Borrer ex Sm. | = Caloplaca borreri |
| Lepraria virescens Sm. | = Caloplaca virescens |
| Lepraria viridis (Schreb.) Funck | = Desmococcus olivaceus (Pers. ex Ach.) J.R. Laundon {non-lichenized alga} |
| Lepraria xantholyta (Nyl.) Lettau | = Leproplaca xantholyta |
| Lepraria zonata Brodo | = Lepraria caesioalba |
| Leproloma angardianum (Øvstedal) J.R. Laundon | = Lepraria cacuminum |
| Leproloma cacuminum (A. Massal.) J.R. Laundon | = Lepraria cacuminum |
| Leproloma diffusum J.R. Laundon var. diffusum | = Lepraria diffusa var. diffusa |
| Leproloma diffusum var. chrysodetoides J.R. Laundon | = Lepraria diffusa var. chrysodetoides |
| Leproloma lanuginosum Nyl. ex Cromb., nom. illeg. | = Lepraria membranacea |
| Leproloma membranaceum (Dicks.) Vain | = Lepraria membranacea |
| Leproloma vouauxii (Hue) J.R. Laundon | = Lepraria vouauxii |
| Leptogidium dendriscum Nyl. | = Polychidium dendriscum |
| Leptogidium moorei auct., non Nyl. | = Polychidium dendriscum |
| Leptogium amphineum auct. brit. | = Leptogium subtile |
| Leptogium amphineum Nyl., non auct. brit. | = Leptogium byssinum |
| Leptogium andegavense Hy | = incorrectly reported from the British Isles |
| Leptogium andegavense auct. brit. | = ? Leptogium turgidum |
| Leptogium azureum auct. brit. | = Leptogium cochleatum |
| Leptogium byssinum auct. brit. p.max.p. | = Leptogium biatorinum |
| Leptogium callopismum (A. Massal.) Harm. | = Collema callopismum |
| Leptogium cataclystum Körb. | = Collema dichotomum |
| Leptogium corniculatum (Hoffm.) Minks | = Leptogium palmatum |
| Leptogium crenulatum Walt. Watson | = of uncertain application |
| Leptogium cretaceum (Sm.) Nyl. | = ? Leptogium biatorinum |
| Leptogium dermatinum auct. p.p. | = Collema auriforme |
| Leptogium dermatinum auct. p.p. | = Collema cristatum |
| Leptogium fluviatile (Huds.) Cromb. | = Collema dichotomum |
| Leptogium fragile (Taylor) Nyl. | = Collema fragile |
| Leptogium fragrans (Sm.) Leight. | = Collema fragrans |
| Leptogium glebulentum Nyl. ex Cromb. | = Collema glebulentum |
| Leptogium granuliforme Harm. | = status of British records uncertain |
| Leptogium humosum Nyl. | = Leptogium tenuissimum |
| Leptogium lacerum (Retz.) Gray | = Leptogium lichenoides |
| Leptogium lacerum var. lophaeum (Ach.) Nyl. | = Leptogium lichenoides |
| Leptogium lacerum var. pulvinatum (Hoffm.) Körb. | = Leptogium lichenoides |
| Leptogium microphyllum Leight. | = Collema fragrans |
| Leptogium microscopicum Nyl. | = Leptogium teretiusculum |
| Leptogium minutissimum (Flörke) Fr. | = Leptogium subtile |
| Leptogium moorei Hepp ex Leight. | = Polychidium dendriscum |
| Leptogium placodiellum Nyl. ex Ripart | = Leptogium diffractum |
| Leptogium pulvinatum (Hoffm.) Cromb. | = Leptogium lichenoides |
| Leptogium pusillum Nyl. | = Leptogium biatorinum |
| Leptogium rhyparodes Nyl. | = Collema callopismum var. rhyparodes |
| Leptogium rimosum (Sommerf.) Nyl. | = status of British records uncertain |
| Leptogium rivulare auct. brit. | = Collema dichotomum |
| Leptogium ruginosum (Schaer.) Nyl. | = Leptogium brebissonii |
| Leptogium sinuatum (Huds.) A. Massal. | = Leptogium gelatinosum |
| Leptogium sinuosum auct. brit. (sphalm. ‘sinuatum’) | = Leptogium gelatinosum |
| Leptogium tremelloides auct. brit. p.p. | = Leptogium britannicum |
| Leptogium tremelloides auct. brit. p.p. | = Leptogium cyanescens |
| Leptogium tremelloides (L. f.) Gray, nom. illeg. | = Leptogium cochleatum |
| Leptorhaphis carrollii A.L. Sm. | = Celothelium ischnobelum |
| Leptorhaphis ischnobela (Nyl.) Coppins | = Celothelium ischnobelum |
| Leptosphaeria baeomycearia (Linds.) Sacc. & Trotter | = ? Pyrenidium actinellum {LF} |
| Leptosphaeria caninae (W. Phillips & Plowr.) Sacc. | = Pyrenidium actinellum {LF} |
| Leptosphaeria leucomelaria (Mudd) Vouaux | = ? Pyrenidium actinellum {LF} |
| Leptosphaeria neottizans (Leight.) Zopf | = Pyrenidium actinellum {LF} |
| Leptosphaeria oligospora (Vain.) Sacc. & D. Sacc. | = Pyrenidium actinellum {LF} |
| Leptosphaeria rivana (De Not.) Sacc. | = Pyrenidium actinellum {LF} |
| Leptosphaeria pycnostigma auct. brit. | = Pyrenidium actinellum {LF} |
| Leptotrema monosporum auct. brit., non (Nyl.) Müll. Arg. | = Thelotrema macrosporum |
| Letharia arenaria auct. brit. | = Evernia prunastri |
| Leucocarposis devensis G. Salisb. | = Verrucaria praetermissa |
| Libertiella peltigerae (Lib. ex Cooke) Keissl. | = Libertiella malmedyensis {LF} |
| Lichen abietinus Ach. | = Lecanactis abietina |
| Lichen abietinus sensu Sm. (1807), non Ach. | = Cresponea premnea |
| Lichen acicularis sensu Sm., non Ach. | = Chaenotheca hispidula |
| Lichen aculeatus Schreb. | = Cetraria aculeata |
| Lichen aculeatus With. | = Cetraria aculeata |
| Lichen affinis Dicks. | = Pannaria rubiginosa |
| Lichen agelaeus Ach. | = Phlyctis agelaea |
| Lichen albellus Pers. | = Lecanora albella |
| Lichen albescens Huds. | = Pertusaria albescens var. albescens |
| Lichen amphibius With. | = ? Dermatocarpon luridum |
| Lichen anthracinus Wulfen | = Umbilicaria polyphylla |
| Lichen aquaticus Weiss, non L. | = Dermatocarpon luridum |
| Lichen aromaticus Sm. | = Toninia aromatica |
| Lichen atlanticus Sm. | = Tornabea scutellifera |
| Lichen atratus Sm. (1811), non Hedw. (1788) | = Orphniospora moriopsis |
| Lichen borreri Sm. | = Punctelia borreri |
| Lichen caeruleonigricans Lightf., non auct. | = Fuscopannaria praetermissa |
| Lichen caeruleonigricans auct. | = Toninia sedifolia |
| Lichen caesariensis With. | = Roccella fuciformis |
| Lichen calcareus L. | = Aspicilia calcarea |
| Lichen calcareus Weiss non L. | = Rhizocarpon umbilicatum |
| Lichen calicaris L. | = Ramalina calicaris |
| Lichen calicaris sensu Huds. p.p. | = Ramalina fastigiata |
| Lichen candidus F.H. Wigg. (1798), nec Sm. (1803) | = Toninia candida (F.H. Wigg.) Th. Fr.; incorrectly reported from the British Isles |
| Lichen candidus Sm. (1803), non F.H. Wigg. (1798) | = Toninia aromatica |
| Lichen capitatus Ach. | = Chaenotheca furfuracea |
| Lichen carnosus Dicks. | = Massalongia carnosa |
| Lichen cartilagineus Lightf. | = Squamarina cartilaginea |
| Lichen cartilagineus With. | = Squamarina cartilaginea |
| Lichen cerinus Hedw. | = Caloplaca cerina |
| Lichen ceuthocarpus Sm. | = Pertusaria pseudocorallina |
| Lichen chloroleucus Sm. | = Caloplaca cerina var. chloroleuca |
| Lichen chrysocephalus Turner ex Ach. | = Chaenotheca chrysocephala |
| Lichen clavellus sensu Sm., non Ach. | = Calicium quercinum |
| Lichen clementei Sm. | = Physcia clementei |
| Lichen clementi Sm. [orth. var.] | = Physcia clementei |
| Lichen coarctatus Sm. | = Trapelia coarctata |
| Lichen coccineus Dicks. (1785), non Neck. | = Haematomma ochroleucum |
| Lichen compositus With. | = Lecanora rupicola parasitized by Arthonia varians {LF} [name not typified] |
| Lichen conspurcatus Sm. (1801) p.p. | = Dirina massiliensis f. sorediata |
| Lichen conspurcatus Sm. (1801) p.p. | = unidentified hyphomycete on Dirina massiliensis f. sorediata {LF} |
| Lichen corneus With. (1776) | = Umbilicaria cylindrica |
| Lichen corneus With. (1796) | = Cliostomum griffithii |
| Lichen cornigerus With. | = Cladonia subulata |
| Lichen cornucopioides auct. brit. p.p. | = Cladonia coccifera s. lat. |
| Lichen corrugatus Sm. | = Pleurosticta acetabulum |
| Lichen corynellus Ach. | = Calicium corynellum |
| Lichen crassus Huds. | = Squamarina cartilaginea |
| Lichen crenularius With. | = Caloplaca crenularia |
| Lichen crenulatus Dicks., non With. | = Lecanora crenulata |
| Lichen crenulatus With. | = Pannaria rubiginosa |
| Lichen cretaceum Sm. | = ? L. biatorinum |
| Lichen crinitus Lightf. | = Umbilicaria cylindrica |
| Lichen crispus Huds. | = Collema crispum |
| Lichen cristatus L. | = Collema cristatum |
| Lichen cristatus sensu Huds. et sensu Sm. | = Collema tenax |
| Lichen cycloselis Ach. | = Phaeophyscia orbicularis |
| Lichen daedaleus Sm. | = Pyxine sorediata (Ach.) Mont.; incorrectly reported from the British Isles |
| Lichen debilis Sm. | = Chaenothecopsis debilis {F} |
| Lichen deustus Lightf., non L. | = Umbilicaria proboscidea |
| Lichen didactylos With. [orth. var.] | = Peltigera didactyla |
| Lichen didactylus With. | = Peltigera didactyla |
| Lichen dillenii With. | = Umbilicaria grisea |
| Lichen distorta With. | = Physconia distorta |
| Lichen dubius Sm. (1814) non Wulfen (1791) | = Lecidella pulveracea |
| Lichen ehrhartianus Ach. | = Cliostomum corrugatum |
| Lichen exilis Lightf. | = ? Ephebe lanata |
| Lichen farinaceus L. | = Ramalina farinacea |
| Lichen fastigiatus Pers. | = Ramalina fastigiata |
| Lichen flavicans Sw. | = Teloschistes flavicans |
| Lichen floridus L. | = Usnea florida |
| Lichen fluviatilis Huds. | = Collema dichotomum |
| Lichen fluviatilis Weber | = Dermatocarpon luridum |
| Lichen fluviatilis sensu Sm. (1809) | = Leptogium plicatile |
| Lichen foliaceus Huds. | = Cladonia foliacea |
| Lichen fragilis L. | = Sphaerophorus fragilis |
| Lichen fragilis sensu Sm., non L. | = Bunodophoron melanocarpum |
| Lichen fragrans Sm. | = Collema fragrans |
| Lichen fraxineus L. | = Ramalina fraxinea |
| Lichen fuciformis L. | = Roccella fuciformis |
| Lichen fucoides Dicks. | = Roccella phycopsis |
| Lichen fucoides With., non Neck. | = Cornicularia normoerica |
| Lichen fuliginosus Dicks. | = Sticta fuliginosa |
| Lichen fuliginosus With. | = Sticta fuliginosa |
| Lichen fungosus With. | = Bulgaria inquinans (Pers.) Fr. {F} |
| Lichen fuscellus Turner | = Verrucaria fuscella |
| Lichen gagei Sm. | = Herteliana gagei |
| Lichen gelasinatus With. | = Sphinctrina turbinata {LF} |
| Lichen gelatinosus With. | = Leptogium gelatinosum |
| Lichen glebulosus Sm. | = Trapelia glebulosa |
| Lichen globiferus L. | = Sphaerophorus globosus |
| Lichen globosus Huds. | = Sphaerophorus globosus |
| Lichen glomuliferus Lightf. | = Lobaria amplissima |
| Lichen granulatus Huds. p.p. | = Collema auriforme |
| Lichen granulatus Huds. p.p. | = Leptogium plicatile |
| Lichen griffithii Sm. | = Cliostomum griffithii |
| Lichen griseus Lam. | = Physconia grisea |
| Lichen griseus Sw. ex Westr., non Lam. | = Umbilicaria grisea |
| Lichen haematomma Ehrh., nom. illeg. | = Haematomma ochroleucum |
| Lichen herbaceus Huds. | = Lobaria virens |
| Lichen heteromallus Sm. | = Pilonema heteromallum (Sm.) Nyl. {F} |
| Lichen hookeri Borrer ex Sm. | = Pannaria hookeri |
| Lichen humilis With. | = Cladonia humilis |
| Megalospora tuberculosa | |
| Lichen inclusus Sm. | = Thelotrema lepadinum |
| Lichen inquinans Sm. | = Cyphelium inquinans |
| Lichen jacquinii J.F. Gmel. | = ? Umbilicaria hyperborea or Umbilicaria proboscidea |
| Lichen lacerus With. | = Ramalina lacera |
| Lichen laciniatus Huds. | = Lobaria amplissima |
| Lichen lactucæfolius With. [orth. var.] | = Peltigera sp., identity uncertain |
| Lichen lactucifolius With. | = Peltigera sp., identity uncertain |
| Lichen lacustris With. | = Ionaspis lacustris |
| Lobaria laetevirens Lightf. | = Lobaria virens |
| Lichen laevigatus Sm. | = Hypotrachyna laevigata |
| Lichen lanatus L. | = Ephebe lanata |
| Lichen leucomelos L. | = Heterodermia leucomela |
| Lichen lightfootii Sm. | = Fuscidea lightfootii |
| Lichen limbatus Sm. | = Sticta limbata |
| Lichen luridus Sw., non With. | = Psora lurida |
| Lichen luridus With. | = Dermatocarpon luridum |
| Lichen lutescens Hoffm. | = Pertusaria flavida |
| Lichen lynceus Sm. | = Lecanographa lyncea |
| Lichen madræporiformis With. [orth. var.] | = Pycnothelia papillaria |
| Lichen madriporiformis With. | = Pycnothelia papillaria |
| Lichen marginalis Huds. | = Collema cristatum var. marginale |
| Lichen marginatus Bernh. | = Collema crispum |
| Lichen melaleucus Sm. | = Pertusaria pustulata |
| Lichen melanocarpus Sw. | = Bunodophoron melanocarpum |
| Lichen membranaceus Dicks. | = Lepraria membranacea |
| Lichen microcephalus Sm. | = Sphinctrina anglica {LF} |
| Lichen microphyllus Sm. (1807), non Lilj. (1792) | = Cladonia peziziformis |
| Lichen microsticticus Sm. | = Sclerococcum sphaerale {LF} |
| Lichen multifidus Dicks. (1793) | = Arctoparmelia incurva |
| Lichen multifidus Scop. (1772) | = Collema cristatum var. marginale |
| Lichen multipunctus (Turner) Sm. | = Pertusaria multipuncta |
| Lichen niger Huds. | = Placynthium nigrum |
| Lichen nigrescens Huds. | = Collema nigrescens |
| Lichen obscurus Sm. & Sowerby (1807), non Ach. | = Enterographa crassa |
| Lichen obscurus sensu With. (1796) | = Anaptychia runcinata |
| Lichen orbicularis With., non Neck. | = Physconia distorta |
| Lichen parasiticus Sm. (1808), non Hoffm. (1784) | = Abrothallus parmeliarum {LF} |
| Lichen pellitus Ach. | = Umbilicaria polyrrhiza |
| Lichen perforatus sensu Sm. (1812) p.p. | = Parmotrema crinitum |
| Lichen perforatus sensu Sm. (1812) p.p. | = Parmotrema reticulatum |
| Lichen perlatus Huds. | = Parmotrema perlatum |
| Lichen peronellus Ach. | = Sclerophora peronella |
| Lichen pezizæformis With. | = Cladonia peziziformis |
| Lichen peziziformis With. [orth. var.] | = Cladonia peziziformis |
| Lichen phaeocephalus Turner | = Chaenotheca phaeocephala |
| Lichen pityreus Ach. | = Physconia grisea |
| Lichen plumbosus Sm. | = Verrucaria caerulea |
| Lichen pollinarius Westr. | = Ramalina pollinaria |
| Lichen pollinarius sensu Sm. | = Ramalina lacera |
| Lichen polydactylos With. [orth. var.] | = Peltigera hymenina |
| Lichen polydactylus With., non Neck. | = Peltigera hymenina |
| Lichen polymorphos With. [orth. var.] | = Cladonia foliacea |
| Lichen polymorphus Ach., non With. | = Ramalina polymorpha |
| Lichen polymorphus With. | = Cladonia foliacea |
| Lichen polyphyllus L. | = Umbilicaria polyphylla |
| Lichen polyrrhizos L. | = Umbilicaria polyrrhiza |
| Lichen proboscideus L. | = Umbilicaria proboscidea |
| Lichen proboscideus sensu Huds., non L. | = Umbilicaria cylindrica |
| Lichen pubescens L. | = Pseudephebe pubescens |
| Lichen pubescens auct. p.p. | = Ephebe lanata |
| Lichen pullus Lightf. (1777) | = Anaptychia runcinata |
| Lichen pullus Wulfen | = Umbilicaria proboscidea |
| Lichen pulmonarius L. | = Lobaria pulmonaria |
| Lichen pulposus Bernh., nom. illeg., sensu auct. p.max.p | = Collema tenax |
| Lichen pustulatus L. | = Lasallia pustulata |
| Lichen ramulosus With. | = Cladonia ramulosa |
| Lichen rosellus sensu Sm. | = Lecanora albella |
| Lichen rubiginosus Ach. | = Pannaria rubiginosa |
| Lichen rufescens With. | = Ophioparma ventosa |
| Lichen runcinatus With. | = Anaptychia runcinata |
| Lichen saccatus L. | = Solorina saccata |
| Lichen scaber Huds. | = ? Pseudephebe pubescens |
| Lichen scopulorum Retz. | = Ramalina siliquosa |
| Lichen scriptus L. | = Graphis scripta |
| Lichen scrobiculatus Scop. | = Lobaria scrobiculata |
| Lichen scrobiculatus With. | = Lobaria scrobiculata |
| Lichen scutelliferus With. | = Tornabea scutellifera |
| Lichen sepincola sensu Dicks. (1793) | = Tuckermanopsis chlorophylla |
| Lichen siliquosus Huds. | = Ramalina siliquosa |
| Lichen sinuatus Huds. | = Leptogium gelatinosum |
| Lichen sinuosus Sm. | = Hypotrachyna sinuosa |
| Lichen sparassus (Ach.) Sm. | = Cladonia squamosa var. squamosa |
| Lichen speireus auct. brit. | = Rhizocarpon umbilicatum |
| Lichen spongiosus Sm. (1804), non Scop. (1772) | = Solorina spongiosa |
| Lichen spongiosus With., non Scop. | = Sticta canariensis |
| Lichen spurius Ach. | = Peltigera didactyla |
| Lichen stictoceros Sm. & Sowerby | = Evernia prunastri |
| Lichen sulphureus Hoffm. | = Lecanora sulphurea |
| Lichen terrestris Sm. (1807) | = Thrombium epigaeum |
| Lichen tessellatus Sm. | = Verrucaria sp. |
| Lichen thelostomus (Ach. ex J. Harriman) Sm. | = Thrombium thelostomum |
| Lichen tigillaris Ach. | = Cyphelium tigillare |
| Lichen torrefactus Lightf. | = Umbilicaria torrefacta |
| Lichen trabinellus sensu Sm., non (Ach.) Sm. | = Chaenotheca phaeocephala |
| Lichen tricolor With. | = ? Opegrapha sp. or Hysterium pulicare Pers. {F} |
| Lichen tuberculosus Sm. (1807), non Hoffm. (1784) | = Aspicilia tuberculosa |
| Lichen tumidulus Sm. | = Toninia tumidula |
| Lichen turneri Sm. | = Ochrolechia turneri |
| Lichen velleus sensu Huds., non L. | = Umbilicaria vellea; incorrectly reported from the British Isles |
| Lichen verruculosus Sm. | = Buellia aethalea |
| Lichen verrucosus Huds. | = Lobaria scrobiculata |
| Lichen verrucosus With. | = Umbilicaria torrefacta |
| Lichen virellus Ach. | = Phaeophyscia orbicularis |
| Lichen virens With. | = Lobaria virensv |
| Lichen vitellinus Hoffm. | = Candelariella vitellina |
| Lichen vulpinus auct. brit., non L. | = Teloschistes flavicans |
| Lichenochora thallina (Cooke) Hafellner | = Lichenochora obscuroides {LF} |
| Lichenoconium imbricariae (Allesch.) Keissl. | = Lichenoconium usneae {LF} |
| Lichenoconium jaapii (Died.) Petr. & Syd. | = Lichenoconium usneae {LF} |
| Lichenoconium lecanoracearum auct. brit. | = Lichenoconium lecanorae {LF} |
| Lichenoconium parasiticum D. Hawksw. | = Lichenoconium lecanorae {LF} |
| Lichenoconium pertusariicola (Nyl.) D. Hawksw. | = Laeviomyces pertusariicola {LF} |
| %Lichenodiplis opegraphae (D. Hawksw.) Diederich {LF} | = Laeviomyces opegraphae (LF} |
| %Lichenodiplis pertusariicola (Nyl.) Diederich {LF} | = Laeviomyces pertusariicola (LF} |
| Lichenomyces lichenum (Sommerf. ex Nyl.) | = Plectocarpon lichenum {LF} |
| Lichenosticta podetiicola Zopf | = Lichenosticta alcicornaria {LF} |
| Lichina pumila (Huds.) Gray | = Lichina pygmaea |
| Lichina pumila sensu Gray, non (Huds.) Gray | = Lichina confinis |
| Lichina pygmaea var. minor (Turner) Hook. | = Lichina confinis |
| Lichiniza kenmorensis (Nyl.) Nyl. | = Porocyphus kenmorensis |
| Lithocia glaucina sensu Gray (1821) | = Verrucaria polysticta |
| Lithocia plumbea (Ach.) Gray | = Verrucaria caerulea |
| Lithographa andrewii Stirt. | = Geltingia associata {LF} |
| Lithographa cerebrina (DC.) Leight. | = Poeltinula cerebrina |
| Lithographa dendrographa Nyl. | = Wadeana dendrographa |
| Lithographa larbalestieri Leight. | = Lecidella asema |
| Lithographa flexella (Ach.) Zahlbr. | = Elixia flexella |
| Lithographa petraea (Ach.) Nyl. | = Lithographa tesserata |
| Lithographa petraea sensu A.L. Sm. (1911) | = ? Polysporina sp. |
| Lithographa tesserata var. petraea (Ach.) Redinger | = Lithographa tesserata |
| Llimoniella groenlandiae (Alstrup & D. Hawksw.) Triebel & Hafellner | = Unguiculariopsis groenlandiae {LF} |
| Llimoniella neglecta (Vain.) Triebel & Rambold | = Rhymbocarpus neglectus {LF} |
| Llimoniella pubescens Etayo & Diederich | = Rhymbocarpus pubescens {LF} |
| Lobaria laciniata (Huds.) Vain. | = Lobaria amplissima |
| Lobaria laetevirens Zahlbr. | = Lobaria virens |
| Lobaria linita auct. brit. | = Lobaria pulmonaria |
| Lobaria pulmonaria f. hypomela (Delise) Cromb. | = Lobaria pulmonaria |
| Lobaria verrucosa (Huds.) Hoffm. | = Lobaria scrobiculata |
| Lobarina scrobiculata (Scop.) Nyl. | = Lobaria scrobiculata |
| %Lobothallia melanaspis (Nyl.) Hafellner | = Aspicilia melanaspis |
| %Lobothallia radiosa (Hoffm.) Hafellner | = Aspicilia radiosa |
| Lopadium fecundum Th. Fr. | = Schadonia fecunda |
| Lopadium fuscoluteum (Dicks.) Mudd | = Brigantiaea fuscolutea |
| Lopadium pezizoideum var. muscicola (Sommerf.) Th. Fr. | = Lopadium pezizoideum |
| #Lopadium pezizoideum auct. p.p. [lowland, corticolous] | = Lopadium disciforme |
| Lopadium sociale Körb. | = Schadonia fecunda |
| Lopidia bacidioides Vêzda ad int. | = Fellhaneropsis vezdae |
| Lophothelium acervatum Stirt. | = Polycoccum trypethelioides {LF} |
| Lopidia bacidioides Vêzda ad int. | = Fellhaneropsis vezdae |
