Checklist of lichens of Minnesota (USA)
Version 31 December 2018
- Acarospora americana H. Magn. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Acarospora badiofusca (Nyl.) Th. Fr. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Acarospora fuscata (Nyl.) Arnold - Wetmore (1981: 487), Thomson (1997: 24), Wetmore (2005: 85 without records)
- Acarospora schleicheri (Ach.) A. Massal. - Thomson (1997: 33), Wetmore (2005: 85 without records)
- Acrocordia cavata (Ach.) R. C. Harris - Wetmore (2005: 85 without records)
- Acrocordia megalospora (Fink) R. C. Harris - Fink (1910: 237 as Pyrenula megalospora Protologue), Harris (1973: 12 as Arthopyrenia finkii), Wetmore (2005: 85 without records) Type in Ann Arbor, USA MICH
- Ahtiana aurescens (Tuck.) A. Thell & Randlane - Wetmore (1981: 487 as Cetraria aurescens), Wetmore (2005: 86 as Cetraria aurescens without records)
- Alyxoria varia (Pers.) Ertz & Tehler - Fink (1910: 53 as Opegrapha varia), Fink (1910: 53 as Opegrapha varia varia pulicaris), Wetmore (1981: 489 as Opegrapha lichenoides), Wetmore (1981: 489 as Opegrapha pulicaris), Wetmore (2005: 89 as Opegrapha varia without records)
- Amandinea dakotensis (H. Magn.) P. May & Sheard - Wetmore (1981: 490 as Rinodina dakotensis), Wetmore (2005: 85 without records)
- Amandinea milliaria (Tuck.) P. F. May & Sheard - Wetmore (2005: 85 without records)
- Amandinea polyspora (Willey) E. Lay & P. F. May - Thomson (1997: 137 as Buellia polyspora), Wetmore (2005: 85 without records)
- Amandinea punctata (Hoffm.) Coppins & Scheid. - Wetmore (1981: 487 as Buellia punctata), Willson & Vinyard (1986: 12 as Buellia punctata), Thomson (1997: 138 as Buellia punctata), Wetmore (2005: 85 without records)
- Amandinea turgescens (Tuck.) Marbach - Wetmore (2005: 85 as Buellia turgescens without records)
- Anaptychia crinalis (Schleich.) Vezda - Thomson (1984: 40 erroneously as Anaptychia kaspica), Wetmore (2005: 85 erroneously as Anaptychia setifera without records)
- Anaptychia palmulata (Michx.) Vain. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Anisomeridium biforme (Borrer) R. C. Harris - Wetmore (2005: 85 without records)
- Anisomeridium polypori (Ellis & Everh.) M.E. Barr - Wetmore (2005: 85 as Anisomeridium nyssaegenum without records)
- Arctoparmelia centrifuga (L.) Hale - Wetmore (2005: 85 without records)
- Arctoparmelia subcentrifuga (Oxner) Hale - Wetmore (2005: 85 without records)
- Arthonia didyma Körb. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Arthonia dispersa (Schrad.) Nyl. - Fink (1910: 57), Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Arthonia patellulata Nyl. - Fink (1910: 56), Wetmore (1981: 487), Thomson (1997: 47), Wetmore (2005: 85 without records)
- Arthonia punctiformis Ach. - Fink (1910: 57), Wetmore (2005: 85 without records)
- Arthonia radiata (Pers.) Ach. - Fink (1910: 58), Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Arthonia ruana A. Massal. - Wetmore (1981: 487 as Arthothelium ruanideum), Wetmore (2005: 85 as Arthothelium ruanum without records)
- Arthonia spadicea Leight. - Wetmore (1981: 487 as Arthonia lurida)
- Arthonia vinosa Leight. - Wetmore (2005: 85 without records)
- Arthopyrenia cinereopruinosa (Schaer.) A. Massal. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Arthopyrenia punctiformis A. Massal. - Wetmore (2005: 85 without records)
- Arthothelium spectabile A. Massal. - Fink (1910: 59), Wetmore (2005: 84 without records)
- Arthrorhaphis citrinella (Ach.) Poelt - Wetmore (2005: 85 without records)
- Arthrosporum populorum A. Massal. - Thomson (1997: 107 as Bacidia populorum), Wetmore (2005: 85 without records)
- Aspicilia cinerea (L.) Körb. - Wetmore (1981: 488 as Lecanora cinerea), Thomson (1997: 68), Wetmore (2005: 85 without records)
- Aspilidea myrinii (Fr.) Hafellner - Thomson (1997: 84 as Aspicilia myrinii)
- Athallia holocarpa (Hoffm.) Arup, Frödén & Søchting - Wetmore (1981: 487 as Caloplaca holocarpa), Willson & Vinyard (1986: 12 as Caloplaca holocarpa), Thomson (1997: 164 as Caloplaca holocarpa), Wetmore (2005: 86 as Caloplaca holocarpa without records)
- Athallia vitellinula (Nyl.) Arup, Frödén & Søchting - Wetmore (1981: 487 as Caloplaca vitellinula), Wetmore (2005: 86 as Caloplaca vitellinula without records)
- Bacidia bagliettoana (A. Massal. & De Not.) Jatta - Willson & Vinyard (1986: 11), Thomson (1997: 99), Wetmore (2005: 85 without records)
- Bacidia circumspecta (Norrl. & Nyl.) Malme - Wetmore (2005: 85 without records)
- Bacidia coprodes (Körb.) Lettau - Thomson (1997: 112 erroneously as Bacidia trachona)
- Bacidia diffracta S. Ekman - Wetmore (2005: 85 without records)
- Bacidia egenula (Nyl.) Arnold - Wetmore (2005: 84 without records)
- Bacidia granosa (Tuck.) Zahlbr. - Wetmore (2005: 85 without records)
- Bacidia igniarii (Nyl.) Oxner - Thomson (1997: 103)
- Bacidia incompta (Borrer) Anzi - Wetmore (2005: 85 without records)
- Bacidia laurocerasi (Delise ex Duby) Zahlbr. - Wetmore (1981: 487 as Bacidia atrogrisea), Wetmore (2005: 85 without records)
- Bacidia polychroa (Th. Fr.) Körb. - Wetmore (1981: 487 as Bacidia fuscorubella), Wetmore (2005: 85 without records)
- Bacidia rosella (Pers.) De Not. - Wetmore (2005: 85 without records)
- Bacidia rubella (Hoffm.) A. Massal. - Wetmore (1981: 487), Willson & Vinyard (1986: 11), Wetmore (2005: 85 without records)
- Bacidia schweinitzii (Fr. ex Tuck.) A. Schneid. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Bacidia subincompta (Nyl.) Arnold - Wetmore (2005: 84 without records)
- Bacidia suffusa (Fr.) A. Schneid. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Bacidina inundata (Fr.) Vezda - Wetmore (1981: 487 as Bacidia inundata), Wetmore (2005: 85 without records)
- Baeomyces carneus (Retz.) Flörke - Wetmore (1981: 487), Thomson (1984: 48)
- Baeomyces rufus (Huds.) Rebent. - Wetmore (1981: 487), Thomson (1984: 52), Wetmore (2005: 85 without records)
- Bagliettoa baldensis (A. Massal.) Vezda - Wetmore (2005: 84 as Verrucaria baldensis without records)
- Bellemerea cinereorufescens (Ach.) Clauzade & Cl. Roux - Wetmore (2005: 85 without records)
- Biatora efflorescens (Hedl.) Räsänen - Wetmore (1981: 488 as Lecidea epixanthoidiza), Wetmore (2005: 85 without records)
- Biatora epixanthoides (Nyl.) Diederich - Wetmore (2005: 85 without records)
- Biatora helvola Körb. ex Hellb. - Wetmore (1981: 489 as Lecidea helvola), Thomson (1997: 349 as Lecidea helvola), Wetmore (2005: 85 without records)
- Biatora ocelliformis (Nyl.) Arnold - Wetmore (2005: 84 without records), Printzen & Otte (2005: 58)
- Biatora pycnidiata Printzen & Tønsberg - Wetmore (2005: 84 without records)
- Biatora vernalis (L.) Fr. - Wetmore (1981: 489 as Lecidea vernalis), Thomson (1997: 389 as Lecidea vernalis), Wetmore (2005: 85 without records)
- Bilimbia accedens Arnold - Wetmore (1981: 487 as Bacidia accedens)
- Bilimbia sabuletorum (Schreb.) Arnold - Wetmore (1981: 487 as Bacidia sabuletorum), Thomson (1997: 422 as Mycobilimbia sabuletorum), Wetmore (2005: 85 as Bacidia sabuletorum without records)
- Blastenia ferruginea (Huds.) A. Massal. - Wetmore (2005: 85 as Caloplaca ferruginea without records)
- Botryolepraria lesdainii (Hue) Canals, Hern.-Mar., Gómez-Bolea & Llimona - Wetmore (2005: 84 as Lepraria lesdainii without records)
- Brownliella cinnabarina (Ach.) S. Y. Kondr., Kärnefelt, A. Thell, Elix, Jung Kim, A. S. Kondr. & Hur - Wetmore (1981: 487 as Caloplaca cinnabarina), Willson & Vinyard (1986: 12 as Caloplaca cinnabarina)
- Bryobilimbia hypnorum (Lib.) Fryday, Printzen & S. Ekman - Wetmore (1981: 489 as Lecidea fusca), Thomson (1997: 351 as Lecidea hypnorum), Wetmore (2005: 89 as Mycobilimbia hypnorum without records)
- Bryoria capillaris (Ach.) Brodo & D. Hawksw. - Thomson (1984: 55), Wetmore (2005: 85 without records)
- Bryoria furcellata (Fr.) Brodo & D. Hawksw. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Bryoria fuscescens (Gyeln.) Brodo & D. Hawksw. - Thomson (1984: 57), Wetmore (2005: 85 without records)
- Bryoria nadvornikiana (Gyeln.) Brodo & D. Hawksw. - Thomson (1984: 61), Wetmore (2005: 85 without records)
- Bryoria trichodes (Michx.) Brodo & D. Hawksw. subsp. trichodes - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Buellia arnoldii Servít - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Buellia dialyta (Nyl.) Tuck. - Wetmore (2005: 85 without records)
- Buellia disciformis (Fr.) Mudd - Wetmore (1981: 487), Thomson (1997: 129), Wetmore (2005: 85 without records)
- Buellia erubescens Arnold - Wetmore (1981: 487 as Buellia stillingiana), Thomson (1997: 131)
- Buellia nigra (Fink) Sheard - Wetmore (2005: 85 without records)
- Buellia schaereri De Not. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Buellia stigmaea Tuck. - Wetmore (2005: 85 without records)
- Buellia stillingiana J. Steiner - Wetmore (2005: 85 without records)
- Caeruleum heppii (Nägeli ex Körb.) K. Knudsen & Arcadia - Thomson (1997: 27 as Acarospora heppii)
- Caeruleum immersum (Fink) K. Knudsen & B. Abbott - Wetmore (2005: 85 as Acarospora immersa without records)
- Calicium abietinum Pers. - Wetmore (1981: 487), Thomson (1997: 143), Wetmore (2005: 85 without records)
- Calicium glaucellum Ach. - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Calicium parvum Tibell - Wetmore (1981: 487), Wetmore (2005: 85 without records)
- Calicium quercinum Pers. - Fink (1910: 47)
- Calicium salicinum Pers. - Wetmore (1981: 487), Thomson (1997: 144), Wetmore (2005: 85 without records)
- Calicium trabinellum (Ach.) Ach. - Fink (1910: 46 as Calicium trachelinum), Wetmore (1981: 487), Thomson (1997: 145), Wetmore (2005: 85 without records)
- Caloplaca ahtii Søchting - Wetmore (2005: 85 without records)
- Caloplaca atroalba (Tuck.) Zahlbr. - Wetmore (2005: 85 without records)
- Caloplaca brunneola Wetmore - Wetmore (1995: 818 Protologue), Wetmore (2005: 85 without records) Type
- Caloplaca cerina (Ehrh. ex Hedwig) Th. Fr. - Wetmore (1981: 487), Thomson (1997: 154), Wetmore (2005: 85 without records)
- Caloplaca chlorina (Flot.) Sandst. - Wetmore (2005: 85 without records)
- Caloplaca epithallina Lynge - Wetmore (2005: 85 without records)
- Caloplaca fraudans (Th. Fr.) H. Olivier - Thomson (1997: 162)
- Caloplaca grimmiae (Nyl.) H. Olivier - Wetmore (2005: 86 without records)
- Caloplaca microphyllina (Tuck.) Hasse - Wetmore (2005: 86 without records)
- Caloplaca parvula Wetmore - Wetmore (1994: 831 Protologue), Wetmore (2005: 86 without records) Type in MIN
- Caloplaca saxicola (Hoffm.) Nordin - Wetmore (1981: 487), Thomson (1997: 169), Wetmore (2005: 86 without records)
- Caloplaca sideritis (Tuck.) Zahlbr. - Wetmore (1981: 487), Willson & Vinyard (1986: 12), Wetmore (2005: 86 without records)
- Caloplaca stillicidiorum (Vahl) Lynge -Thomson (1997: 172)
- Caloplaca ulmorum (Fink) Fink - Wetmore (1981: 487)
- Caloplaca variabilis (Pers.) Müll. Arg. - Wetmore (2005: 84 without records)
- Candelaria concolor (Dicks.) Stein - Wetmore (1981: 487), Willson & Vinyard (1986: 12), Wetmore (2005: 86 without records)
- Candelaria fibrosa (Fr.) Müll. Arg. - Wetmore (1981: 487), Wetmore (2005: 86 without records)
- Candelariella aurella (Hoffm.) Zahlbr. - Thomson (1997: 182), Wetmore (2005: 86 without records)
- Candelariella efflorescens R. C. Harris & W. R. Buck - Wetmore (1981: 487), Thomson (1997: 185), Wetmore (2005: 86 without records)
- Candelariella subdeflexa (Nyl.) Lettau - Wetmore (2005: 86 without records)
- Candelariella vitellina (Hoffm.) Müll. Arg. - Wetmore (1981: 487), Willson & Vinyard (1986: 12), Thomson (1997: 189), Wetmore (2005: 86 without records)
- Candelariella xanthostigma (Pers. ex Ach.) Lettau - Wetmore (1981: 487), Thomson (1997: 190), Wetmore (2005: 86 without records)
- Canomaculina subtinctoria (Zahlbr.) Elix - Wetmore (2005: 86 without records)
- Carbonicola anthracophila (Nyl.) Bendiksby & Timdal - Wetmore (1981: 488 as Lecidea anthracophila)
- Catapyrenium lachneum - Wetmore (2005: 86 without records)
- Catapyrenium lacinulatum - Wetmore (2005: 86 without records)
- Catapyrenium tuckermanii - Wetmore (2005: 86 without records)
- Catillaria glauconigrans (Tuck.) Hasse -Thomson (1997: 197)
- Catillaria lenticularis (Ach.) Th. Fr. - Wetmore (2005: 86 without records)
- Catillaria nigroclavata (Nyl.) J. Steiner - Wetmore (2005: 86 without records)
- Catinaria atropurpurea (Schaer.) Vezda & Poelt - Wetmore (1981: 487 as Catillaria atropurpurea), Wetmore (2005: 86 without records)
- Cetraria americana M. Satô oder (Spreng.) Hale - Wetmore (2005: 86 as Cetraria americana without records)
- Cetraria arenaria Kärnefelt - Wetmore (2005: 86 without records)
- Cetraria ericetorum Opiz subsp. ericetorum - Thomson (1984: 79), Wetmore (2005: 86 without records)
- Cetraria fendleri - Wetmore (2005: 86 without records)
- Cetraria oakesiana - Wetmore (2005: 86 without records)
- Cetraria orbata - Wetmore (2005: 86 without records)
- Cetraria pinastri - Wetmore (2005: 86 without records)
- Cetraria sepincola - Wetmore (2005: 86 without records)
- Cetrelia chicitae (W. L. Culb.) W. L. Culb. & C. F. Culb. - Wetmore (1981: 487)
- Cetrelia olivetorum (Nyl.) W. L. Culb. & C. F. Culb. - Wetmore (1981: 487), Wetmore (2005: 86 without records)
- Chaenotheca brunneola (Ach.) Müll. Arg. - Fink (1910: 50), Wetmore (1981: 487), Wetmore (2005: 86 without records)
- Chaenotheca chrysocephala (Turner ex Ach.) Th. Fr. - Fink (1910: 49), Wetmore (1981: 487), Thomson (1997: 205), Wetmore (2005: 86 without records)
- Chaenotheca ferruginea (Turn. & Borr.) Mig. - Wetmore (1981: 487), Wetmore (2005: 86 without records)
- Chaenotheca furfuracea (L.) Tibell - Wetmore (1981: 488 as Coniocybe furfuracea), Thomson (1997: 210 as Coniocybe furfuracea), Wetmore (2005: 86 without records)
- Chaenotheca hispidula (Ach.) Zahlbr. - Wetmore (1981: 487), Wetmore (2005: 86 without records)
- Chaenotheca laevigata Nadv. - Wetmore (1981: 487), Wetmore (2005: 86 without records)
- Chaenotheca stemonea (Ach.) Müll. Arg. - Fink (1910: 50 as Chaenotheca trichialis stemonea), Wetmore (1981: 487), Wetmore (2005: 86 without records)
- Chaenotheca phaeocephala (Turner) Th. Fr. - Fink (1910: 48)
- Chaenotheca trichialis (Ach.) Hellb. - Fink (1910: 50), Wetmore (1981: 488), Wetmore (2005: 86 without records)
- Chaenotheca xyloxena Nádv. - Wetmore (1981: 488), Wetmore (2005: 86 without records)
- Chaenothecopsis consociata (Nádv.) A. F. W. Schmidt - Wetmore (2005: 86 without records)
- Chaenothecopsis debilis (Sm.) Tibell - Wetmore (2005: 86 without records)
- Chaenothecopsis pusilla (Ach.) A. F. W. Schmidt - Wetmore (2005: 86 without records)
- Chaenothecopsis pusiola (Ach.) Vain. - Wetmore (2005: 86 without records)
- Chaenothecopsis rubescens Vain. - Wetmore (2005: 86 without records)
- Chaenothecopsis savonica (Räsänen) Tibell - Wetmore (2005: 86 without records)
- Chaenothecopsis viridireagens (Nádv.) A. F. W. Schmidt - Wetmore (2005: 86 without records)
- Chrismofulvea dialyta (Nyl.) Marbach - Wetmore (1981: 487 as Buellia dialyta)
- Chrysothrix caesia (Flot.) Ertz & Tehler - Fink (1910: 57 as Arthonia lecideella), Wetmore (1981: 487 as Arthonia caesia), Wetmore (2005: 85 as Arthonia caesia without records)
- Chrysothrix candelaris (L.) J. R. Laundon - Wetmore (2005: 86 without records)
- Chrysothrix chlorina (Ach.) J. R. Laundon - Wetmore (2005: 86 without records)
- Circinaria caesiocinerea (Nyl. ex Malbr.) A. Nordin, Savic & Tibell - Wetmore (1981: 488 as Lecanora caesiocinerea), Thomson (1997: 65 as Aspicilia caesiocinerea), Willson & Vinyard (1986: 11 as Aspicilia caesiocinerea), Wetmore (2005: 85 as Aspicilia contorta without records)
- Cladonia acuminata (Ach.) Norrl. - Wetmore (1981: 488), Willson & Vinyard (1986: 12), Wetmore (2005: 86 without records)
- Cladonia amaurocraea (Flörke) Schaer. - Wetmore (1981: 488), Thomson (1984: 107), Wetmore (2005: 86 without records)
- Cladonia arbuscula (Wallr.) Flot. - Wetmore (2005: 86 without records)
- Cladonia apodocarpa Robbins - Anderson (1958: 101)
- Cladonia bacillaris (Ach.) Nyl. - Wetmore (1981: 488), Thomson (1984: 111)
- Cladonia bacilliformis - Wetmore (2005: 86 without records)
- Cladonia borealis - Wetmore (2005: 86 without records)
- Cladonia botrytes (K. G. Hagen) Willd. - Wetmore (1981: 488), Thomson (1984: 114), Wetmore (2005: 86 without records)
- Cladonia caespiticia (Pers.) Flörke - Wetmore (1981: 488), Wetmore (2005: 86 without records)
- Cladonia cariosa (Ach.) Spreng. - Wetmore (1981: 488), Thomson (1984: 116), Wetmore (2005: 86 without records)
- Cladonia cenotea (Ach.) Schaer. - Wetmore (1981: 488), Thomson (1984: 118), Wetmore (2005: 86 without records)
- Cladonia cervicornis (Ach.) Flot. - Wetmore (2005: 86 without records)
- Cladonia chlorophaea ( Flörke ex. Sommerf.) Spreng. - Wetmore (1981: 488), Willson & Vinyard (1986: 12), Thomson (1984: 119), Wetmore (2005: 86 without records)
- Cladonia coccifera (L.) Willd. - Wetmore (1981: 488), Thomson (1984: 121), Wetmore (2005: 86 without records)
- Cladonia coniocraea (Flörke) Spreng. - Wetmore (1981: 488), Thomson (1984: 122), Wetmore (2005: 86 without records)
- Cladonia conista (Nyl.) Robb. - Wetmore (1981: 488), Thomson (1984: 123)
- Cladonia cornuta (L.) Hoffm. subsp. cornuta - Wetmore (1981: 488), Thomson (1984: 124), Wetmore (2005: 86 without records)
- Cladonia crispata (Ach.) Flot. var. crispata - Wetmore (1981: 488), Thomson (1984: 125), Wetmore (2005: 86 without records)
- Cladonia cristatella Tuck. - Wetmore (1981: 488), Wetmore (2005: 86 without records)
- Cladonia cryptochlorophaea Asahina - Anderson (1958: 101), Wetmore (1981: 488), Thomson (1984: 126), Wetmore (2005: 86 without records)
- Cladonia cyanipes (Fr.) Flörke - Wetmore (1981: 488)
- Cladonia cylindrica (Evans) Evans - Wetmore (1981: 488), Wetmore (2005: 86 without records)
- Cladonia decorticata (Flörke) Spreng. - Wetmore (1981: 488), Wetmore (2005: 86 without records)
- Cladonia deformis (L.) Hoffm. - Wetmore (1981: 488), Thomson (1984: 129), Wetmore (2005: 86 without records)
- Cladonia digitata (L.) Hoffm. - Wetmore (1981: 488), Thomson (1984: 131), Wetmore (2005: 86 without records)
- Cladonia farinacea - Wetmore (2005: 86 without records)
- Cladonia fimbriata (L.) Fr. - Wetmore (1981: 488), Thomson (1984: 133), Wetmore (2005: 86 without records)
- Cladonia floerkeana (Fr.) Flörke - Anderson (1958: 101), Wetmore (1981: 488), Thomson (1984: 134), Wetmore (2005: 86 without records)
- Cladonia furcata (Huds.) Schrad. - Wetmore (1981: 488), Wetmore (2005: 86 without records)
- Cladonia glauca Flörke - Thomson (1984: 135)
- Cladonia gracilis (L.) Willd. subsp. gracilis - Wetmore (1981: 488), Wetmore (2005: 86 without records)
- Cladonia gracilis (L.) Willd. subsp. turbinata (Ach.) Ahti - Thomson (1984: 136)
- Cladonia grayi G. Merr. ex Sandst. - Anderson (1958: 101), Wetmore (1981: 488), Thomson (1984: 139), Wetmore (2005: 86 without records)
- Cladonia humilis - Wetmore (2005: 86 without records)
- Cladonia macilenta - Wetmore (2005: 86 without records)
- Cladonia magyarica - Wetmore (2005: 84 without records)
- Cladonia merochlorophaea Asah. - Wetmore (1981: 488), Thomson (1984: 143), Wetmore (2005: 86 without records)
- Cladonia mitis Sandst. - Wetmore (1981: 488), Thomson (1984: 148), Wetmore (2005: 86 without records)
- Cladonia multiformis G. Merr. - Wetmore (1981: 488), Thomson (1984: 149), Wetmore (2005: 86 without records)
- Cladonia norvegica - Wetmore (2005: 84 without records)
- Cladonia parasitica (Hoffm.) Hoffm. - Wetmore (1981: 488), Wetmore (2005: 86 without records)
- Cladonia peziziformis - Wetmore (2005: 86 without records)
- Cladonia phyllophora Ehrh. ex Hoffm. - Wetmore (1981: 488), Thomson (1984: 153), Wetmore (2005: 86 without records)
- Cladonia pleurota (Flörke) Schaer. - Wetmore (1981: 488), Thomson (1984: 154), Wetmore (2005: 86 without records)
- Cladonia pocillum (Ach.) O. J. Rich. - Thomson (1984: 156)
- Cladonia polycarpoides - Wetmore (2005: 87 without records)
- Cladonia pyxidata (L.) Hoffm. - Wetmore (1981: 488), Willson & Vinyard (1986: 12), Thomson (1984: 158), Wetmore (2005: 87 without records)
- Cladonia ramulosa (With.) J. R. Laundon - Thomson (1984: 109 as Cladonia anomaea), Wetmore (1981: 488 as Cladonia pityrea), Wetmore (2005: 87 without records)
- Cladonia rangiferina (L.) F. H. Wigg. - Wetmore (1981: 488), Thomson (1984: 159), Wetmore (2005: 87 without records)
- Cladonia rei Schaer. - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Cladonia robbinsii Evans - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Cladonia scabriuscula (Del. ex Duby) Nyl. - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Cladonia squamosa (Scop.) Hoffm. var. squamosa - Wetmore (1981: 488), Thomson (1984: 161)
- Cladonia stellaris (Opiz) Pouzar & Vezda - Wetmore (1981: 488), Thomson (1984: 163)
- Cladonia stygia Wetmore (2005: 87 without records)
- Cladonia subcariosa Nyl. - Willson & Vinyard (1986: 12 as Cladonia polycarpoides)
- Cladonia submitis A. Evans - Anderson (1958: 101)
- Cladonia subulata (L.) Wigg. - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Cladonia sulphurina (Michx.) Fr. - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Cladonia symphycarpa (Ach.) Fr. - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Cladonia turgida Ehrh. ex Hoffm. - Wetmore (1981: 488), Thomson (1984: 172), Wetmore (2005: 87 without records)
- Cladonia uncialis (L.) F. H. Wigg. - Wetmore (1981: 488), Thomson (1984: 173), Wetmore (2005: 87 without records)
- Cladonia verticillata (Hoffm.) Schaer. - Wetmore (1981: 488), Thomson (1984: 174)
- Cladonia wainioi Savicz - Wetmore (1981: 488 as Cladonia pseudorangiformis), Thomson (1984: 157 as Cladonia pseudorangiformis), Wetmore (2005: 87 without records)
- Claussenomyces olivaceus (Fuckel) Sherwood - Wetmore (2005: 87 without records)
- Coccocarpia palmicola (Spreng.) Arv. & D. J. Galloway - Wetmore (2005: 87 without records)
- Coenogonium luteum (Dicks.) Kalb & Lücking - Wetmore (1981: 488 as Dimerella lutea), Wetmore (2005: 87 without records)
- Coenogonium pineti (Schrad. ex Ach.) Lücking & Lumbsch - Wetmore (1981: 488 as Dimerella diluta), Wetmore (2005: 87 without records)
- Collema flaccidum (Ach.) Ach. - Wetmore (1981: 488), Thomson (1984: 186), Willson & Vinyard (1986: 12), Wetmore (2005: 87 without records)
- Collema furfuraceum (Schaer.) Du Rietz - Thomson (1984: 187)
- Collema glebulentum (Nyl. ex Cromb.) Degel. - Wetmore (2005: 87 without records)
- Collema nigrescens (Huds.) DC. - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Collema subflaccidum Degel. - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Collema undulatum Laurer ex Flot. - Wetmore (2005: 87 without records)
- Cresponea chloroconia (Tuck.) Egea & Torrente - Wetmore (1981: 488 as Lecanactis chloroconia), Wetmore (2005: 87 without records)
- Cresponea premnea (Ach.) Egea & Torrente - Fink (1910: 60 as Lecanactis premnea)
- Cyphelium lucidum (Th. Fr.) Th. Fr. - Fink (1910: 50 as Acolium lucidum), Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Cyphelium tigillare (Ach.) Ach. - Fink (1910: 50 as Acolium tigillare), Wetmore (1981: 488), Thomson (1997: 214), Wetmore (2005: 87 without records)
- Dendriscocaulon intricatulum (Nyl.) Henssen - Wetmore (2005: 87 without records)
- Dermatocarpon americanum Vain. - Heidmarsson (2003: 466), Wetmore (2005: 87 without records)
- Dermatocarpon luridum (With.) J. R. Laundon - Wetmore (1981: 488 as Dermatocarpon weberi), Thomson (1984: 213 as Dermatocarpon fluviatile), Willson & Vinyard (1986: 12 as Dermatocarpon fluviatile), Wetmore (2005: 87 without records)
- Dermatocarpon meiophyllizum Vain. - Glavich & Geiser (2004: 139), Wetmore (2005: 87 without records)
- Dermatocarpon miniatum (L.) W. Mann - Wetmore (1981: 488), Thomson (1984: 219), Willson & Vinyard (1986: 12), Wetmore (2005: 87 without records)
- Dermatocarpon moulinsii (Mont.) Zahlbr. - Wetmore (2005: 87 without records)
- Dimelaena oreina (Ach.) Norman - Wetmore (1981: 490 as Rinodina oreina), Willson & Vinyard (1986: 12), Thomson (1997: 216), Wetmore (2005: 87 without records)
- Diploschistes actinostomus (Ach.) Zahlbr. - Wetmore (2005: 87 without records)
- Diploschistes muscorum (Scop.) R. Sant. subsp. muscorum - Thomson (1997: 218), Wetmore (2005: 87 without records)
- Diploschistes scruposus (Schreb.) Norman - Wetmore (1981: 488), Willson & Vinyard (1986: 12), Thomson (1997: 218), Wetmore (2005: 87 without records)
- Diplotomma venustum (Körb.) Körb. - Wetmore (2005: 85 as Buellia venusta without records)
- Diplotomma alboatrum (Hoffm.) Flot. - Wetmore (1981: 487 as Buellia alboatra), Thomson (1997: 127 as Buellia alboatra), Wetmore (2005: 85 as Buellia alboatra without records)
- Enchylium bachmanianum (Fink) Otálora, P. M. Jørg. & Wedin - Wetmore (2005: 87 as Collema bachmanianum without records)
- Enchylium coccophorum (Tuck.) Otálora, P. M. Jørg. & Wedin - Wetmore (2005: 87 as Collema coccophorum without records)
- Enchylium conglomeratum (Hoffm.) Otálora, P. M. Jørg. & Wedin - Wetmore (1981: 488 as Collema conglomeratum), Wetmore (2005: 87 as Collema conglomeratum without records)
- Enchylium limosum (Ach.) Otálora, P. M. Jørg. & Wedin - Wetmore (2005: 87 as Collema limosum without records)
- Enchylium polycarpon (Hoffm.) Otálora, P. M. Jørg. & Wedin - Wetmore (2005: 87 as Collema polycarpon without records)
- Enchylium tenax (Sw.) Gray - Wetmore (2005: 87 as Collema tenax without records)
- Endocarpon diffractellum (Nyl.) Gueidan & Cl. Roux - Wetmore (2005: 91 as Staurothele diffractella without records)
- Endocarpon pusillum Hedw. - Willson & Vinyard (1986: 12), Wetmore (2005: 87 without records)
- Eopyrenula intermedia Coppins - Wetmore (2005: 87 without records)
- Ephebe lanata (L.) Vain. - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Ephebe ocellata Henssen - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Evernia mesomorpha Nyl. - Wetmore (1981: 488), Thomson (1984: 229), Wetmore (2005: 87 without records)
- Flavoparmelia baltimorensis (Gyeln. & Fóriss) Hale - Wetmore (1981: 489 as Parmelia baltimorensis), Willson & Vinyard (1986: 12 as Pseudoparmelia baltimorensis), Wetmore (2005: 87 without records)
- Flavoparmelia caperata (L.) Hale - Wetmore (1981: 489 as Parmelia caperata), Willson & Vinyard (1986: 12 as Pseudoparmelia caperata), Wetmore (2005: 87 without records)
- Flavoplaca citrina (Hoffm.) Arup, Frödén & Søchting - Wetmore (1981: 487 as Caloplaca citrina), Thomson (1997: 155 as Caloplaca citrina), Wetmore (2005: 85 as Caloplaca citrina without records)
- Flavopunctelia flaventior (Stirt.) Hale - Wetmore (1981: 489 as Parmelia flaventior), Wetmore (2005: 87 without records)
- Flavopunctelia soredica (Nyl.) Hale - Wetmore (1981: 489 as Parmelia soredica), Wetmore (2005: 87 without records)
- Fuscidea arboricola Coppins & Tønsberg - Wetmore (2005: 84 without records)
- Fuscopannaria ahlneri (P. M. Jørg.) P. M. Jørg. - Wetmore (2005: 87 without records)
- Fuscopannaria leucosticta (Tuck.) P. M. Jørg. - Wetmore (1981: 489 as Pannaria leucosticta), Wetmore (2005: 87 without records)
- Fuscopannaria praetermissa (Nyl.) P. M. Jørg. - Wetmore (1981: 489 as Pannaria praetermissa), Thomson (1984: 320 as Parmeliella praetermissa), Wetmore (2005: 87 without records)
- Graphis scripta (L.) Ach. - Fink (1910: 54), Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Gyalecta fagicola (Hepp ex Arnold) Zwackh - Wetmore (1981: 489 as Pachyphiale fagicola), Wetmore (2005: 89 as Pachyphiale fagicola without records)
- Gyalecta jenensis (Batsch) Zahlbr. - Thomson (1997: 241), Wetmore (2005: 87 without records)
- Gyalecta truncigena (Ach.) Hepp - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Gyalolechia flavorubescens (Huds.) Søchting, Frödén & Arup - Wetmore (2005: 85 as Caloplaca flavorubescens without records)
- Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup - Wetmore (1981: 487 as Caloplaca flavovirescens), Thomson (1997: 161 as Caloplaca flavovirescens), Wetmore (2005: 86 as Caloplaca flavovirescens without records)
- Gyalolechia xanthostigmoidea (Räsänen) Søchting, Frödén & Arup - Thomson (1997: 158 as Caloplaca discolor)
- Henrica theleodes (Sommerf.) Savic, Tibell & Nav.-Ros. - Wetmore (2005: 90 as Polyblastia theleodes without records)
- Heppia lutosa (Ach.) Nyl. - Thomson (1997: 244), Wetmore (2005: 87 without records)
- Heterodermia galactophylla (Tuck.) W. L. Culb. - Wetmore (2005: 87 without records)
- Heterodermia obscurata (Nyl.) Trevis. - Wetmore (2005: 87 without records)
- Heterodermia speciosa (Wulfen) Trevis. - Wetmore (1981: 488), Wetmore (2005: 87 without records)
- Huneckia pollinii (A. Massal.) S. Y. Kondr., Kärnefelt, Elix, A. Thell, Jung Kim, A. S. Kondr. & Hur - Wetmore (1981: 487 as Caloplaca pollinii), Wetmore (2005: 86 as Caloplaca pollinii without records)
- Hyperphyscia adglutinata (Flörke) H. Mayrhofer & Poelt - Wetmore (2005: 87 without records)
- Hyperphyscia syncolla (Tuck. ex Nyl.) Kalb - Willson & Vinyard (1986: 12 as Physciopsis syncolla), Wetmore (2005: 87 without records)
- Hypocenomyce anthracophila - Wetmore (2005: 87 without records)
- Hypocenomyce friesii - Wetmore (2005: 87 without records)
- Hypocenomyce scalaris (Ach. ex Lilj.) M. Choisy - Wetmore (1981: 489 as Lecidea scalaris), Thomson (1997: 248), Wetmore (2005: 87 without records)
- Hypogymnia bitteri - Wetmore (2005: 87 without records)
- Hypogymnia physodes (L.) Nyl. - Wetmore (1981: 488), Thomson (1984: 241), Wetmore (2005: 87 without records)
- Hypogymnia tubulosa - Wetmore (2005: 87 without records)
- Hypotrachyna revoluta (Flörke) Hale - Wetmore (1981: 489 as Parmelia revoluta), Wetmore (2005: 87 without records)
- Icmadophila ericetorum (L.) Zahlbr. - Wetmore (1981: 488), Thomson (1997: 249), Wetmore (2005: 87 without records)
- Imshaugia aleurites (Ach.) S. F. Meyer - Wetmore (1981: 489 as Parmeliopsis aleurites), Thomson (1984: 321 as Parmeliopsis aleurites), Wetmore (2005: 87 without records)
- Imshaugia placorodia (Ach.) S. F. Meyer - Wetmore (1981: 489 as Parmeliopsis placorodia), Wetmore (2005: 87 without records)
- Ionaspis alba - Wetmore (2005: 84 without records)
- Ionaspis lacustris (With.) Lutzoni - Wetmore (1981: 488 as Lecanora lacustris), Thomson (1997: 245 as Hymenelia lacustris), Wetmore (2005: 87 without records)
- Japewia tornoensis - Wetmore (2005: 87 without records)
- Julella sericea - Wetmore (2005: 87 without records)
- Kirschsteiniothelia aethiops - Wetmore (2005: 87 without records)
- Lasallia papulosa (Ach.) Llano - Wetmore (1981: 488), Thomson (1984: 245), Wetmore (2005: 87 without records)
- Lathagrium fuscovirens (With.) Otálora, P. M. Jørg. & Wedin - Wetmore (1981: 488 as Collema tuniforme), Thomson (1984: 192 as Collema tuniforme), Wetmore (2005: 87 as Collema fuscovirens without records)
- Lecania cyrtella - Wetmore (2005: 84 without records)
- Lecania dubitans (Nyl.) A. L. Sm. - Wetmore (1981: 488 as Lecania dimera), Wetmore (2005: 87 without records)
- Lecania erysibe - Wetmore (2005: 87 without records)
- Lecania naegelii - Wetmore (2005: 87 without records)
- Lecania nylanderiana - Wetmore (2005: 87 without records)
- Lecanora albella (Pers.) Ach. var. rubescens (Imshaug & Brodo) Lumbsch - Wetmore (1981: 488 as Lecanora pallida var. rubescens), Wetmore (2005: 87 without records)
- Lecanora albellula Nyl. - Wetmore (1981: 488 as Lecanora piniperda), Thomson (1997: 299 as Lecanora piniperda)
- Lecanora allophana (Ach.) Nyl. - Wetmore (1981: 488), Thomson (1997: 266), Wetmore (2005: 87 without records)
- Lecanora argentata - Wetmore (2005: 87 without records)
- Lecanora argentea Brodo - Thomson (1997: 281 as Lecanora fuliginosa), Wetmore (2005: 88 without records)
- Lecanora argopholis (Ach.) Ach. - Wetmore (1981: 488 as Lecanora frustulosa), Thomson (1997: 267), Wetmore (2005: 88 without records)
- Lecanora caesiorubella - Wetmore (2005: 88 without records)
- Lecanora caesiorubella Ach. var. saximontana Imsh. & Brodo - Wetmore (1981: 488)
- Lecanora carpinea (L.) Vain. - Wetmore (2005: 88 without records)
- Lecanora cateilea (Ach.) A. Massal. - Wetmore (2005: 88 without records)
- Lecanora cenisia Ach. - Wetmore (1981: 488), Thomson (1997: 272), Wetmore (2005: 88 without records)
- Lecanora circumborealis Brodo & Vitik. - Thomson (1997: 274), Wetmore (2005: 88 without records)
- Lecanora epanora (Ach.) Ach. - Wetmore (2005: 84 without records)
- Lecanora expallens - Wetmore (2005: 84 without records)
- Lecanora flotoviana - Wetmore (2005: 84 without records)
- Lecanora fugiens - Wetmore (2005: 84 without records)
- Lecanora galactinula - Wetmore (2005: 88 without records)
- Lecanora hagenii (Ach.) Ach. - Thomson (1997:286), Wetmore (2005: 88 without records)
- Lecanora hybocarpa - Wetmore (2005: 88 without records)
- Lecanora impudens Degel. - Wetmore (1981: 488), Thomson (1997: 287), Wetmore (2005: 88 without records)
- Lecanora intricata (Ach.) Ach. - Wetmore (2005: 88 without records)
- Lecanora meridionalis H. Magn. - Wetmore (1981: 488), Wetmore (2005: 88 without records)
- Lecanora minutella - Wetmore (2005: 84 without records)
- Lecanora muralis (Schreb.) Rabenh. var. muralis - Wetmore (1981: 488), Willson & Vinyard (1986: 12), Thomson (1997: 295), Wetmore (2005: 88 without records)
- Lecanora intricata (Ach.) Ach. - Wetmore (1981: 488 as Lecanora mutabilis)
- Lecanora opiniconensis - Wetmore (2005: 88 without records)
- Lecanora perplexa Brodo - Thomson (1997: 298)
- Lecanora piniperda - Wetmore (2005: 88 without records)
- Lecanora polytropa (Ehrh. in Hoffm.) Rabenh. - Wetmore (1981: 488), Thomson (1997: 299), Wetmore (2005: 88 without records)
- Lecanora pseudistera - Wetmore (2005: 88 without records)
- Lecanora pulicaris (Pers.) Ach. - Wetmore (1981: 488 as Lecanora coilocarpa), Wetmore (1981: 488), Thomson (1997: 301), Wetmore (2005: 88 without records)
- Lecanora chlarotera Nyl. - Wetmore (1981: 488 as Lecanora rugosella), Thomson (1997: 301 as Lecanora rugosella), Wetmore (2005: 88 as Lecanora rugosella without records)
- Lecanora rupicola (L.) Zahlbr. - Thomson (1997: 303), Wetmore (2005: 88 without records)
- Lecanora saligna (Schrad.) Zahlbr. - Wetmore (1981: 488), Wetmore (2005: 88 without records)
- Lecanora strobilina (Spreng.) Kieff. - Wetmore (1981: 488), Wetmore (2005: 88 without records)
- Lecanora subrugosa Nyl. - Thomson (1997: 308)
- Lecanora symmicta (Ach.) Ach. - Wetmore (1981: 488 as Lecanora symmictera), Thomson (1997: 309), Wetmore (2005: 88 without records)
- Lecanora thysanophora R. C. Harris - Wetmore (2005: 88 without records)
- Lecanora valesiaca (Müll. Arg.) Stizenb. - Wetmore (2005: 88 without records)
- Lecanora varia (Hoffm.) Ach. - Wetmore (1981: 488), Thomson (1997: 311), Wetmore (2005: 88 without records)
- Lecanora wisconsinensis H. Magn. - Wetmore (1981: 488), Wetmore (2005: 88 without records)
- Lecidea albofuscescens Nyl. - Wetmore (2005: 88 without records)
- Lecidea albohyalina (Nyl.) Th. Fr. - Wetmore (1981: 488), Thomson (1997: 325), Wetmore (2005: 85 as Biatora albohyalina without records)
- Lecidea atrobrunnea (DC.) Schaer. - Wetmore (2005: 88 without records)
- Lecidea auriculata Th. Fr. - Wetmore (2005: 88 without records)
- Lecidea berengeriana (A. Massal.) Nyl. - Wetmore (1981: 488 as Lecidea berengeriana), Thomson (1997: 331 as Lecidea berengeriana), Wetmore (2005: 89 as Mycobilimbia berengeriana without records)
- Lecidea betulicola (Kullh.) H. Magn. - Wetmore (2005: 84 without records)
- Lecidea carnulenta (Tuck.) Fink - Wetmore (2005: 88 without records)
- Lecidea delincta Nyl. - Wetmore (2005: 88 without records)
- Lecidea erythrophaea Flörke ex Sommerf. - Wetmore (1981: 489), Wetmore (2005: 88 without records)
- Lecidea fuliginosa Taylor - Wetmore (2005: 84 without records)
- Lecidea lithophila (Ach.) Ach. - Thomson (1997: 361)
- Lecidea nylanderi (Anzi) Th. Fr. - Wetmore (1981: 489), Thomson (1997: 365), Wetmore (2005: 88 without records)
- Lecidea plana (J. Lahm. in Körb.) Nyl. - Wetmore (1981: 489), Thomson (1997: 372), Wetmore (2005: 88 without records)
- Lecidea plebeja Nyl. - Wetmore (2005: 88 without records)
- Lecidea tessellata Flörke - Thomson (1997: 384), Wetmore (2005: 88 without records)
- Lecidea turgidula Fr. - Wetmore (1981: 489), Thomson (1997: 388), Wetmore (2005: 85 as Biatora turgidula without records)
- Lecidella carpathica Körb. - Wetmore (1981: 489), Thomson (1997: 395), Wetmore (2005: 88 without records)
- Lecidella effugiens (Nilson) Knoph & Hertel - Wetmore (2005: 88 without records)
- Lecidella elaeochroma (Ach.) Hazsl. - Wetmore (1981: 489), Wetmore (2005: 88 without records)
- Lecidella euphorea (Flörke) Hertel - Wetmore (1981: 489 as Lecidella glomerulosa), Thomson (1997: 398), Wetmore (2005: 88 without records)
- Lecidella patavina (A. Massal.) Knoph & Leuckert - Wetmore (2005: 88 without records)
- Lecidella stigmatea (Ach.) Hertel & Leuckert - Wetmore (1981: 489), Willson & Vinyard (1986: 12), Thomson (1997: 402), Wetmore (2005: 88 without records)
- Leimonis erratica (Körb.) R. C. Harris & Lendemer - Wetmore (1981: 489 as Lecidea erratica), Wetmore (2005: 89 as Micarea erratica without records)
- Lepra amara (Ach.) Hafellner - Wetmore (1981: 489 as Pertusaria amara), Wetmore (2005: 89 as Pertusaria amara without records)
- Lepra pustulata (Brodo & W. L. Culb.) Lendemer & R. C. Harris - Wetmore (2005: 88 as Loxospora pustulata without records)
- Lepraria caesioalba (B. de Lesd.) J. R. Laundon - Wetmore (2005: 88 without records)
- Lepraria lobificans Nyl. - Wetmore (2005: 88 without records)
- Lepraria neglecta (Nyl.) Lettau - Wetmore (1981: 489), Wetmore (1981: 489 as Lepraria zonata), Wetmore (2005: 88 without records)
- Leproplaca cirrochroa - Wetmore (2005: 85 as Caloplaca cirrochroa without records)
- Leptogium apalachense (Tuck.) Nyl. - Wetmore (2005: 88 without records)
- Leptogium arsenei Sierk - Wetmore (1981: 489), Wetmore (2005: 88 without records)
- Leptogium burnetiae C. W. Dodge - Wetmore (1981: 489)
- Leptogium byssinum - Wetmore (2005: 88 without records)
- Leptogium corticola - Wetmore (2005: 88 without records)
- Leptogium cyanescens (Ach.) Körb. - Wetmore (1981: 489), Wetmore (2005: 88 without records)
- Leptogium dactylinum - Wetmore (2005: 88 without records)
- Leptogium hirsutum - Wetmore (2005: 88 without records)
- Leptogium lichenoides - Wetmore (2005: 88 without records)
- Leptogium milligranum Sierk - Wetmore (1981: 489), Wetmore (2005: 88 without records)
- Leptogium pulchellum (Ach.) Nyl. - Wetmore (1981: 488 as Collema pulchellum), Wetmore (2005: 87 as Collema pulchellum without records)
- Leptogium saturninum (Dicks.) Nyl. - Wetmore (1981: 489), Thomson (1984: 262), Wetmore (2005: 88 without records)
- Leptogium tenuissimum - Wetmore (2005: 88 without records)
- Leptogium teretiusculum - Wetmore (2005: 88 without records)
- Leptorhaphis contorta - Wetmore (2005: 88 without records)
- Leptorhaphis epidermidis - Wetmore (2005: 88 without records)
- Lichenothelia scopularia (Nyl.) D. Hawksw. - Wetmore (2005: 88 without records)
- Lichinella cribellifera (Nyl.) P. P. Moreno & Egea - Wetmore (2005: 88 without records)
- Lichinella minnesotensis (Fink) Essl. - Fink (1910: 145 as Omphalaria minnesotensis Protologue), Zahlbruckner (1924: 806 as Thyrea minnesotensis), Fink (1935: 149 as Forssellia minnesotensis), Henssen & Jørgensen (1990: 141 as Gonohymenium minnesotensis), Wetmore (2005: 88 without records) Type in MICH
- Lichinella nigritella (Lettau) P. P. Moreno & Egea - Wetmore (2005: 88 without records)
- Lithothelium hyalosporum (Nyl.) Aptroot - Wetmore (2005: 84 without records)
- Lithothelium phaeosporum (R. C. Harris) Aptroot - Wetmore (2005: 88 without records)
- Lobaria pulmonaria (L.) Hoffm. - Wetmore (1981: 489), Wetmore (2005: 88 without records)
- Lobaria quercizans Michx. - Wetmore (1981: 489), Wetmore (2005: 88 without records)
- Lobaria scrobiculata (Scop.) DC. - Thomson (1984: 271), Wetmore (2005: 88 without records)
- Lobothallia alphoplaca (Wahlenb.) Hafellner - Wetmore (2005: 88 without records)
- Lopadium pezizoideum (Ach.) Körb. - Thomson (1997: 411), Wetmore (2005: 88 without records)
- Loxospora elatina (Ach.) A. Massal. - Wetmore (1981: 488 as Haematomma elatinum), Wetmore (2005: 88 without records)
- Megalospora porphyritis (Tuck.) R. C. Harris - Wetmore (2005: 88 without records)
- Megaspora verrucosa (Ach.) Hafellner & V. Wirth - Wetmore (1981: 489 as Pachyospora verrucosa), Thomson (1997: 443 as Pachyospora verrucosa), Wetmore (2005: 88 without records)
- Melanelia hepatizon (Ach.) A. Thell - Wetmore (2005: 88 as Melanelia hepatizon without records)
- Melanelixia albertana (Ahti) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Wetmore (1981: 489 as Parmelia albertana), Wetmore (2005: 88 as Melanelia albertana without records)
- Melanelia fuliginosa (Fr. ex Duby) Essl. - Wetmore (2005: 88 as Melanelia fuliginosa without records)
- Melanelixia glabratula (Lamy) O. Blanco et al. - Wetmore (1981: 489 as Parmelia glabratula), Thomson (1984: 303 as Parmelia glabratula)
- Melanelixia subargentifera (Nyl.) O. Blanco et al. - Wetmore (1981: 489 as Parmelia subargentifera), Wetmore (2005: 88 without records)
- Melanelixia subaurifera (Nyl.) O. Blanco et al. - Wetmore (1981: 489 as Parmelia subaurifera), Thomson (1984: 316 as Parmelia subaurifera), Wetmore (2005: 88 without records)
- Melanohalea exasperata (De Not.) O. Blanco et al. - Wetmore (1981: 489 as Parmelia exasperata), Wetmore (2005: 88 as Melanelia exasperata without records)
- Melanohalea exasperatula (Nyl.) O. Blanco et al. - Wetmore (1981: 489 as Parmelia exasperatula), Thomson (1984: 300 as Parmelia exasperatula), Wetmore (2005: 88as Melanelia exasperatula without records)
- Melanohalea infumata (Nyl.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Wetmore (1981: 489 as Parmelia infumata), Wetmore (2005: 88 as Melanelia infumata without records)
- Melanohalea olivacea (L.) O. Blanco et al. - Wetmore (1981: 489 as Parmelia olivacea), Thomson (1984: 306 as Parmelia olivacea), Wetmore (2005: 88 as Melanelia olivacea without records)
- Melanohalea septentrionalis (Lynge) O. Blanco et al. - Wetmore (1981: 489 as Parmelia septentrionalis), Thomson (1984: 311 as Parmelia septentrionalis), Wetmore (2005: 88 as Melanelia septentrionalis without records)
- Melanohalea subolivacea (Nyl. in Hasse) O. Blanco et al. - Wetmore (1981: 489 as Parmelia subolivacea), Wetmore (2005: 88 as Melanelia subolivacea without records)
- Melanohalea trabeculata (Ahti) O. Blanco et al. - Wetmore (1981: 489 as Parmelia trabeculata), Wetmore (2005: 89 as Melanelia trabeculata without records)
- Melaspilea arthonioides (Fée) Nyl. - Fink (1910: 60), Wetmore (2005: 89 without records)
- Menegazzia terebrata (Hoffm.) A. Massal. - Wetmore (2005: 89 without records)
- Micarea denigrata (Fr.) Hedl. - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Micarea melaena (Nyl.) Hedl. - Wetmore (1981: 489), Thomson (1997: 419), Wetmore (2005: 89 without records)
- Micarea misella (Nyl.) Hedl. - Wetmore (2005: 88 without records)
- Micarea peliocarpa (Anzi) Coppins & R. Sant. - Wetmore (2005: 89 without records)
- Micarea prasina (Fr.) Körb. - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Microcalicium arenarium (Hampe ex A. Massal.) Tibell - Wetmore (2005: 89 without records)
- Montanelia disjuncta (Erichsen) Divakar, A. Crespo, Wedin & Essl. - Wetmore (1981: 489 as Parmelia disjuncta), Thomson (1984: 299 as Parmelia disjuncta), Wetmore (2005: 88 as Melanelia disjuncta without records)
- Montanelia sorediata (Ach.) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 312 as Parmelia sorediosa), Wetmore (2005: 88 as Melanelia sorediata without records)
- Montanelia tominii (Oxner) Divakar, A. Crespo, Wedin & Essl. - Wetmore (1981: 489 as Parmelia substygia), Willson & Vinyard (1986: 12 as Parmelia substygia), Thomson (1984: 317 as Parmelia substygia), Wetmore (2005: 88 as Melanelia tominii without records)
- Mycobilimbia carneoalbida (Müll. Arg.) S. Ekman & Printzen - Wetmore (2005: 84 without records)
- Mycobilimbia epixanthoides (Nyl.) Lettau - Wetmore (1981: 487 as Bacidia epixanthoides), Thomson (1997: 101 as Bacidia epixanthoides), Wetmore (2005: 84 without records)
- Mycobilimbia pilularis (Körb.) Hafellner & Türk - Wetmore (1981: 487 as Bacidia sphaeroides), Thomson (1997: 110 as Bacidia sphaeroides), Wetmore (2005: 89 without records)
- Mycobilimbia tetramera - Wetmore (2005: 89 without records)
- Mycoblastus affinis (Schaer.) T. Schauer - Wetmore (2005: 89 without records)
- Mycoblastus sanguinarius (L.) Norman - Wetmore (1981: 489), Thomson (1997: 426), Wetmore (2005: 89 without records)
- Mycocalicium subtile (Pers.) Szatala - Wetmore (2005: 89 without records)
- Mycomicrothelia wallrothii (Hepp) D. Hawksw. - Wetmore (2005: 89 without records)
- Mycoglaena quercicola R. C. Harris - Wetmore (2005: 84 without records)
- Myelochroa aurulenta (Tuck.) Elix & Hale - Wetmore (1981: 489 as Parmelia aurulenta), Wetmore (2005: 89 without records)
- Myelochroa galbina (Ach.) Elix & Hale - Wetmore (1981: 489 as Parmelia galbina), Willson & Vinyard (1986: 12 as Parmelina galbina), Wetmore (2005: 89 without records)
- Myelochroa obsessa (Ach.) Elix & Hale - Wetmore (1981: 489 as Parmelia obsessa), Wetmore (2005: 89 without records)
- Myriolecis crenulata (Ach.) Sliwa, Zhao Xin & Lumbsch - Wetmore (2005: 88 as Lecanora crenulata without records)
- Myriolecis dispersa (Pers.) Sliwa, Zhao Xin & Lumbsch - Thomson (1997: 278 as Lecanora dispersa), Wetmore (2005: 88 as Lecanora dispersa without records)
- Myriolecis invadens (H. Magn.) Sliwa, Zhao Xin & Lumbsch - Wetmore (2005: 84 as Lecanora invadens without records)
- Myriolecis sambuci (Pers.) Clem. - Wetmore (2005: 88 as Lecanora sambuci without records)
- Myriolecis torrida (Vain.) Sliwa, Zhao Xin & Lumbsch - Wetmore (2005: 84 as Lecanora torrida without records)
- Myriospora smaragdula (Wahlenb. ex Ach.) K. Knudsen & B. Abbott - Thomson (1997: 34 as Acarospora smaragdula)
- Naetrocymbe punctiformis (Schrank) R. C. Harris - Wetmore (1981: 487 as Arthopyrenia padi)
- Nephroma bellum (Spreng.) Tuck. - Wetmore (1981: 489), Thomson (1984: 278), Wetmore (2005: 89 without records)
- Nephroma helveticum (Ach.) var. helveticum - Wetmore (1981: 489), Thomson (1984: 280), Wetmore (2005: 89 without records)
- Nephroma parile (Ach.) Ach. - Wetmore (1981: 489), Thomson (1984: 282), Wetmore (2005: 89 without records)
- Nephroma resupinatum (L.) Ach. - Wetmore (1981: 489), Thomson (1984: 283), Wetmore (2005: 89 without records)
- Normandina pulchella (Borrer) Nyl. - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Ochrolechia androgyna (Hoffm.) Arnold - Thomson (1997: 430), Wetmore (2005: 89 without records)
- Ochrolechia arborea (Ljubitz) Almb. - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Ochrolechia mexicana - Wetmore (2005: 89 without records)
- Ochrolechia pseudopallescens - Wetmore (2005: 89 without records)
- Ochrolechia trochophora (Tuck.) Vers. - Wetmore (1981: 489 as Ochrolechia rosella), Wetmore (2005: 89 without records)
- Opegrapha anomea Nyl. - Wetmore (2005: 84 without records)
- Pannaria conoplea (Ach.) Bory - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Pannaria tavaresii P. M. Jørg.- Wetmore (2005: 89 without records)
- Parmelia fraudans (Nyl.) Nyl. - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Parmelia omphalodes (L.) Ach. - Wetmore (2005: 89 without records)
- Parmelia saxatilis (L.) Ach. - Thomson (1984: 310), Wetmore (2005: 89 without records)
- Parmelia squarrosa Hale - Wetmore (1981: 489), Thomson (1984: 313), Wetmore (2005: 89 without records)
- Parmelia sulcata Taylor - Wetmore (1981: 489), Thomson (1984: 318), Wetmore (2005: 89 without records)
- Parmeliella triptophylla (Ach.) Müll. Arg. - Wetmore (2005: 89 without records)
- Parmeliopsis ambigua (Wulfen) Nyl. - Wetmore (1981: 489), Thomson (1984: 325), Wetmore (2005: 89 without records)
- Parmeliopsis hyperopta (Ach.) Arnold - Wetmore (1981: 489), Thomson (1984: 326), Wetmore (2005: 89 without records)
- Parmotrema arnoldii (Du Rietz) Hale - Wetmore (2005: 89 without records)
- Parmotrema cetratum (Ach.) Hale - Wetmore (2005: 91 as Rimelia cetrata without records)
- Parmotrema crinitum (Ach.) M. Choisy - Wetmore (1981: 489 as Parmelia crinita), Wetmore (2005: 89 without records)
- Parmotrema margaritatum (Hue) Hale - Wetmore (2005: 89 without records)
- Parmotrema reticulatum (Taylor) M. Choisy - Wetmore (2005: 91 as Rimelia reticulata without records)
- Parmotrema stuppeum (Taylor) Hale - Wetmore (2005: 89 without records)
- Peltigera aphthosa (L.) Willd. - Wetmore (1981: 489), Thomson (1984: 329), Wetmore (2005: 89 without records)
- Peltigera canina (L.) Willd. - Wetmore (1981: 489), Willson & Vinyard (1986: 12), Wetmore (2005: 89 without records)
- Peltigera collina (Ach.) Schrad. - Wetmore (2005: 89 without records)
- Peltigera didactyla (With.) J. R. Laundon - Wetmore (1981: 489 as Peltigera canina var. spuria), Thomson (1984: 332 as Peltigera canina f. sorediata), Willson & Vinyard (1986: 12 as Peltigera spuria), Wetmore (2005: 89 without records)
- Peltigera elisabethae Gyeln. - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Peltigera evansiana Gyeln. - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Peltigera horizontalis (Huds.) Baumg. - Wetmore (1981: 489), Thomson (1984: 337), Wetmore (2005: 89 without records)
- Peltigera lepidophora (Nyl.) Vain. - Wetmore (1981: 489), Thomson (1984: 338), Wetmore (2005: 89 without records)
- Peltigera leucophlebia (Nyl.) Gyeln. - Wetmore (1981: 489), Thomson (1984: 330 as Peltigera aphthosa var. leucophlebia), Wetmore (2005: 89 without records)
- Peltigera malacea (Ach.) Funck - Wetmore (1981: 489), Thomson (1984: 339), Wetmore (2005: 89 without records)
- Peltigera membranacea (Ach.) Nyl. - Thomson (1984: 340), Wetmore (2005: 89 without records)
- Peltigera neckeri Müll. Arg. - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Peltigera polydactylon (Neck.) Hoffm. - Wetmore (1981: 489), Thomson (1984: 343), Willson & Vinyard (1986: 12), Wetmore (2005: 89 without records)
- Peltigera praetextata (Flörke ex Sommerf.) Zopf - Wetmore (1981: 489 as Peltigera canina var. praetextata), Wetmore (2005: 89 without records)
- Peltigera rufescens (Weiss) Humb. - Wetmore (1981: 489 as Peltigera canina var. rufescens), Thomson (1984: 333 as Peltigera canina var. rufescens), Wetmore (2005: 89 without records)
- Peltigera scabrosa Th. Fr. - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Peltigera venosa (L.) Baumg. - Thomson (1984: 345), Wetmore (2005: 89 without records)
- Peltula bolanderi (Tuck.) Wetmore - Wetmore (2005: 89 without records)
- Peltula euploca (Ach.) Poelt ex Pišút - Wetmore (2005: 89 without records)
- Peltula patellata (Bagl.) Swinscow & Krog - Wetmore (2005: 89 without records)
- Pertusaria alpina Hepp ex Ahles - Wetmore (1981: 489), Thomson (1997: 447), Wetmore (2005: 89 without records)
- Pertusaria consocians Dibben - Wetmore (1981: 489), Wetmore (2005: 89 without records)
- Pertusaria globularis (Ach.) Tuck. - Wetmore (2005: 89 without records)
- Pertusaria leioplaca (Ach.) DC. - Wetmore (1981: 489 as Pertusaria leucostoma), Wetmore (2005: 89 without records)
- Pertusaria macounii (I. M. Lamb) Dibben- Wetmore (2005: 89 without records)
- Pertusaria multipunctoides - Wetmore (2005: 89 without records)
- Pertusaria ophthalmiza - Wetmore (2005: 89 without records)
- Pertusaria plittiana - Wetmore (2005: 89 without records)
- Pertusaria pustulata - Wetmore (2005: 89 without records)
- Pertusaria rhexostoma - Wetmore (2005: 89 without records)
- Pertusaria stenhammarii Hellb. - Wetmore (1981: 489)
- Pertusaria trachythallina - Wetmore (2005: 89 without records)
- Pertusaria velata - Wetmore (2005: 89 without records)
- Phaeocalicium compressulum - Wetmore (2005: 89 without records)
- Phaeocalicium curtisii - Wetmore (2005: 89 without records)
- Phaeocalicium polyporaeum - Wetmore (2005: 89 without records)
- Phaeocalicium populneum - Wetmore (2005: 89 without records)
- Phaeographis dendritica (Ach.) Müll. Arg. - Fink (1910: 54 as Graphis dendritica)
- Phaeophyscia adiastola (Essl.) Essl. - Wetmore (1981: 490), Wetmore (2005: 89 without records)
- Phaeophyscia hirsuta (Mereschk.) Essl. - Wetmore (1981: 490 as Phaeophyscia cernohorskyi), Wetmore (2005: 89 without records)
- Phaeophyscia ciliata (Hoffm.) Moberg - Wetmore (1981: 490), Wetmore (2005: 89 without records)
- Phaeophyscia endococcina (Körb.) Moberg - Wetmore (1981: 490), Thomson (1984: 348), Willson & Vinyard (1986: 12), Wetmore (2005: 89 without records)
- Phaeophyscia hirtella - Wetmore (2005: 89 without records)
- Phaeophyscia hispidula (Ach.) Essl. - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Phaeophyscia hirsuta (Mereschk.) Essl. - Wetmore (2005: 90 without records)
- Phaeophyscia hirtella Essl. - Esslinger (1978: 303 Protologue) Type in DUKE
- Phaeophyscia imbricata (Vain.) Essl. - Wetmore (2005: 90 without records)
- Phaeophyscia kairamoi (Vain.) Moberg - Wetmore (2005: 90 without records)
- Phaeophyscia melanchra (Hue) Hale - Wetmore (2005: 90 without records)
- Phaeophyscia nigricans (Flörke) Moberg - Wetmore (2005: 90 without records)
- Phaeophyscia orbicularis (Flörke) Moberg - Wetmore (2005: 90 without records)
- Phaeophyscia pusilloides (Zahlbr.) Essl. - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Phaeophyscia rubropulchra (Degel.) Moberg - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Phaeophyscia sciastra (Ach.) Moberg - Wetmore (1981: 490), Thomson (1984: 349), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Phaeophyscia squarrosa Kashiw. - Wetmore (1981: 490 as Phaeophyscia imbricata)
- Phlyctis argena (Ach.) Flot. - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Phylliscum demangeonii (Moug. & Mont.) Nyl. - Wetmore (1981: 490), Thomson (1997: 469), Wetmore (2005: 90 without records)
- Physcia adscendens H. Olivier - Wetmore (1981: 490), Thomson (1984: 352), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Physcia aipolia (Ehrh. ex Humb.) Fürnr. var. aipolia - Wetmore (1981: 490), Thomson (1984: 353), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Physcia americana G. Merr. - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Physcia caesia (Hoffm.) Hampe ex Fürnr. - Wetmore (1981: 490), Thomson (1984: 354), Wetmore (2005: 90 without records)
- Physcia dakotensis Essl. - Esslinger (2004: 302), Wetmore (2005: 90 without records)
- Physcia dubia (Hoffm.) Lettau - Wetmore (1981: 490), Thomson (1984: 355), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Physcia halei J. W. Thomson - Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Physcia millegrana Degel. - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Physcia phaea (Tuck.) J. W. Thomson - Wetmore (1981: 490), Thomson (1984: 356), Wetmore (2005: 90 without records)
- Physcia stellaris (L.) Nyl. - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Physcia subtilis Degel. - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Physcia tenella (Scop.) DC. - Willson & Vinyard (1986: 12)
- Physciella chloantha (Ach.) Essl. - Wetmore (1981: 490 as Phaeophyscia chloantha), Willson & Vinyard (1986: 12 as Physcia chloantha), Wetmore (2005: 89 without records)
- Physciella melanchra (Hue) Essl. - Willson & Vinyard (1986: 12 as Physcia melanchra)
- Physconia detersa (Nyl.) Poelt - Wetmore (1981: 490), Thomson (1984: 359), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Physconia kurokawae Kashiw. - Wetmore (2005: 90 without records)
- Physconia leucoleiptes (Tuck.) Essl. - Wetmore (2005: 90 without records)
- Physconia muscigena (Ach.) Poelt - Thomson (1984: 360), Wetmore (2005: 90 without records)
- Piccolia ochrophora (Nyl.) Hafellner - Wetmore (2005: 91 as Strangospora ochrophora without records)
- Pilophorus cereolus (Ach.) Th. Fr. - Thomson (1984: 362)
- Placidium arboreum (Schwein. ex E. Michener) Lendemer - Wetmore (1981: 488 as Dermatocarpon tuckermanii)
- Placidium lachneum (Ach.) B. de Lesd. - Willson & Vinyard (1986: 12 as Dermatocarpon lachneum)
- Placidium squamulosum (Ach.) Breuss - Thomson (1984: 215 as Dermatocarpon hepaticum)
- Placopyrenium fuscellum (Turner) Gueidan & Cl. Roux - Wetmore (2005: 92 as Verrucaria fuscella without records)
- Placynthiella dasaea (Stirt.) Tønsberg - Wetmore (2005: 90 without records)
- Placynthiella icmalea (Ach.) Coppins & P. James - Wetmore (2005: 90 without records)
- Placynthiella oligotropha (J. R. Laundon) Coppins & P. James - Wetmore (1981: 489 as Lecidea oligotropha), Thomson (1997: 474), Wetmore (2005: 90 without records)
- Placynthiella uliginosa (Schrad.) Coppins & P. James - Wetmore (1981: 489 as Lecidea uliginosa), Thomson (1997: 475), Wetmore (2005: 90 without records)
- Placynthium nigrum (Huds.) Gray - Wetmore (1981: 490), Thomson (1984: 366), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Placynthium stenophyllum (Tuck.) Fink - Wetmore (2005: 90 without records)
- Platismatia glauca (L.) W. L. Culb. & C. F. Culb. - Thomson (1984: 368), Wetmore (2005: 90 without records)
- Platismatia tuckermanii (Oakes) W. L. Culb. & C. F. Culb. - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Pleopsidium chlorophanum (Wahlenb.) Zopf - Willson & Vinyard (1986: 11 as Acarospora chlorophana)
- Pleopsidium flavum (Trevis.) Körb. - Wetmore (2005: 90 without records)
- Polyblastia cupularis A. Massal. - Wetmore (2005: 90 without records)
- Polyblastidium hypoleucum (Ach.) Kalb - Wetmore (1981: 488 as Heterodermia hypoleuca), Willson & Vinyard (1986: 12 as Heterodermia hypoleuca), Wetmore (2005: 87 as Heterodermia hypoleuca without records)
- Polycauliona candelaria (L.) Frödén, Arup & Søchting - Willson & Vinyard (1986: 12 as Xanthoria candelaria)
- Polycauliona polycarpa (Hoffm.) Frödén, Arup & Søchting - Wetmore (1981: 490 as Xanthoria polycarpa), Thomson (1984: 487 as Xanthoria polycarpa), Willson & Vinyard (1986: 12 as Xanthoria polycarpa)
- Polycauliona stellata (Wetmore & Kärnefelt) Arup, Frödén & Søchting - Wetmore (2005: 86 as Caloplaca stellata without records)
- Polysporina simplex (Borrer ex Hook.) Vezda - Wetmore (1981: 490 as Sarcogyne simplex), Thomson (1997: 486), Wetmore (2005: 90 without records)
- Porocyphus coccodes Flot. ex Körb. - Thomson (1997: 488)
- Porpidia albocaerulescens (Wulfen) Hertel & Knoph - Wetmore (2005: 90 without records)
- Porpidia cinereoatra (Ach.) Hertel & Knoph - Wetmore (2005: 90 without records)
- Porpidia crustulata (Ach.) Hertel & Knoph - Wetmore (2005: 90 without records)
- Porpidia diversa (J. Lowe) Gowan - Wetmore (2005: 90 without records)
- Porpidia herteliana Gowan - Wetmore (2005: 90 without records)
- Porpidia macrocarpa (DC.) Hertel & A. J. Schwab - Wetmore (1981: 488 as Huilia macrocarpa), Wetmore (2005: 90 without records)
- Porpidia speirea (Ach.) Kremp. - Thomson (1997: 497), Wetmore (2005: 90 without records)
- Porpidia tahawasiana Gowan - Wetmore (2005: 90 without records)
- Porpidia tuberculosa (Sm.) Hertel & Knoph - Wetmore (2005: 90 without records)
- Protoblastenia rupestris (Scop.) Steiner - Thomson (1997: 503), Wetmore (2005: 90 without records)
- Protopannaria pezizoides (Weber) P. M. Jørg. & S. Ekman - Thomson (1984: 294 as Pannaria pezizoides), Wetmore (2005: 89 as Pannaria pezizoides without records)
- Protoparmelia badia (Hoffm.) Hafellner - Wetmore (2005: 90 without records)
- Protoparmelia hypotremella Herk, Spier & V. Wirth - Wetmore (2005: 90 without records)
- Pseudevernia consocians (Vain.) Hale & W. L. Culb. - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Pseudocyphellaria crocata (L.) Vain. - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Psilolechia lucida (Ach.) M. Choisy - Wetmore (1981: 489 as Lecidea lucida), Wetmore (2005: 90 without records)
- Psora decipiens (Hedwig) Hoffm. - Thomson (1997: 507), Wetmore (2005: 90 without records)
- Psora globifera (Ach.) A. Massal. - Thomson (1997: 508), Wetmore (2005: 90 without records)
- Psora icterica (Mont.) Müll. Arg. - Wetmore (2005: 90 without records)
- Psora pseudorussellii Timdal - Wetmore (2005: 90 without records)
- Psorula rufonigra (Tuck.) Gotth. Schneid. - Wetmore (1981: 489 as Lecidea rufonigra), Thomson (1997: 515), Wetmore (2005: 90 without records)
- Punctelia appalachiensis (W. L. Culb.) Krog - Wetmore (2005: 90 without records)
- Punctelia bolliana (Müll. Arg.) Krog - Wetmore (1981: 489 as Parmelia bolliana), Willson & Vinyard (1986: 12 as Parmelia bolliana), Wetmore (2005: 90 without records)
- Punctelia graminicola (B. de Lesd.) Egan - Wetmore (2005: 90 without records)
- Punctelia hypoleucites (Nyl.) Krog - Wetmore (2005: 90 without records)
- Punctelia perreticulata (Räsänen) G. Wilh. & Ladd - Wetmore (2005: 90 without records)
- Punctelia rudecta (Ach.) Krog - Wetmore (1981: 489 as Parmelia rudecta), Willson & Vinyard (1986: 12 as Parmelia rudecta), Wetmore (2005: 90 without records)
- Punctelia stictica (Delise ex Duby) Krog - Wetmore (2005: 90 without records)
- Pyrenopsis polycocca (Nyl.) Tuck. - Wetmore (2005: 90 without records)
- Pyrenula pseudobufonia (Rehm) R. C. Harris - Wetmore (2005: 90 without records)
- Pyxine sorediata (Ach.) Mont. - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Ramalina americana Hale - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Ramalina dilacerata (Hoffm.) Hoffm. - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Ramalina intermedia (Del. ex Nyl.) Nyl. - Wetmore (1981: 490), Thomson (1984: 379), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Ramalina obtusata (Arnold) Bitter - Thomson (1984: 380), Wetmore (2005: 90 without records)
- Ramalina roesleri (Hoechst. ex Schaer.) Hue - Thomson (1984: 233 as Fisturiella roesleri), Wetmore (2005: 90 without records)
- Ramalina sinensis Jatta - Wetmore (1981: 490), Wetmore (2005: 90 without records)
- Ramalina thrausta (Ach.) Nyl. - Wetmore (2005: 90 without records)
- Ramalina unifolia J. W. Thomson - Thomson (1990: 341 Type in WIS), Wetmore (2005: 90 without records)
- Ramboldia elabens (Fr.) Kantvilas & Elix - Wetmore (1981: 488 as Lecidea elabens), Wetmore (2005: 90 as Pyrrhospora elabens without records)
- Rhizocarpon badioatrum (Flörke ex Sprengel) Th. Fr. - Wetmore (1981: 490), Thomson (1997: 524), Wetmore (2005: 90 without records)
- Rhizocarpon cinereovirens (Müll. Arg.) Vain. - Wetmore (1981: 490), Thomson (1997: 528), Wetmore (2005: 90 without records)
- Rhizocarpon concentricum (Davis) Beltr. - Wetmore (1981: 490), Thomson (1997: 529)
- Rhizocarpon disporum (Nägeli ex Hepp) Müll. Arg. - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Wetmore (2005: 90 without records)
- Rhizocarpon distinctum Th. Fr. - Wetmore (2005: 90 without records)
- Rhizocarpon eupetraeum (Nyl.) Arnold - Thomson (1997: 533)
- Rhizocarpon geminatum Körb. - Thomson (1997: 537), Wetmore (2005: 90 without records)
- Rhizocarpon geographicum (L.) DC. - Wetmore (1981: 490), Thomson (1997: 538), Wetmore (2005: 90 without records)
- Rhizocarpon grande (Flörke ex Flot.) Arnold - Wetmore (1981: 490), Thomson (1997: 539), Wetmore (2005: 90 without records)
- Rhizocarpon hochstetteri (Körb.) Vain. - Wetmore (1981: 490), Thomson (1997: 540), Wetmore (2005: 90 without records)
- Rhizocarpon lavatum (Ach.) Hazsl. - Wetmore (2005: 90 without records)
- Rhizocarpon obscuratum auct. - Wetmore (1981: 490), Thomson (1997: 545)
- Rhizocarpon petraeum - Wetmore (2005: 90 without records)
- Rhizocarpon reductum - Wetmore (2005: 90 without records)
- Rhizocarpon rubescens Th. Fr. - Wetmore (1981: 490 as Rhizocarpon plicatile), Wetmore (2005: 90 without records)
- Rhizocarpon subgeminatum Eitner - Wetmore (1981: 490), Wetmore (2005: 84 without records)
- Rhizoplaca chrysoleuca (Sm.) Zopf - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Thomson (1997: 554), Wetmore (2005: 91 without records)
- Rhizoplaca melanophthalma (Ramond) Leuckert & Poelt - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Thomson (1997: 555), Wetmore (2005: 91 without records)
- Rhizoplaca subdiscrepans (Nyl.) R. Sant. - Wetmore (2005: 91 without records)
- Rimularia caeca (Lowe) Rambold & Printzen - Wetmore (1981: 488 as Lecidea caeca), Wetmore (2005: 91 without records)
- Rinodina adirondackii H. Magn. - Wetmore (2005: 91 without records)
- Rinodina archaea (Ach.) Arnold - Wetmore (1981: 490), Thomson (1997: 560), Wetmore (2005: 91 without records)
- Rinodina austroborealis Sheard - Wetmore (2005: 91 without records)
- Rinodina bischoffii (Hepp) A. Massal. - Wetmore (2005: 91 without records)
- Rinodina cana (Arnold) Arnold - Wetmore (1981: 490 as Rinodina iowensis), Wetmore (2005: 91 without records)
- Rinodina colobina (Ach.) Th. Fr. - Wetmore (2005: 91 without records)
- Rinodina colobinoides - Wetmore (2005: 91 without records)
- Rinodina confragosa - Wetmore (2005: 91 without records)
- Rinodina efflorescens - Wetmore (2005: 91 without records)
- Rinodina excrescens - Wetmore (2005: 91 without records)
- Rinodina degeliana - Wetmore (2005: 84 without records)
- Rinodina exigua (Ach.) S. Gray - Wetmore (1981: 490), Wetmore (2005: 91 without records)
- Rinodina freyi - Wetmore (2005: 84 without records)
- Rinodina glauca - Wetmore (2005: 91 without records)
- Rinodina granulans - Wetmore (2005: 91 without records)
- Rinodina isidiate - Wetmore (2005: 84 without records)
- Rinodina magnusonii - Wetmore (2005: 84 without records)
- Rinodina metaboliza - Wetmore (2005: 91 without records)
- Rinodina oleae - Wetmore (2005: 84 without records)
- Rinodina oxydata - Wetmore (2005: 91 without records)
- Rinodina pachysperma H. Magn. - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Wetmore (2005: 91 without records)
- Rinodina polyspora - Wetmore (2005: 91 without records)
- Rinodina populicola H. Magn. - Wetmore (1981: 490), Wetmore (2005: 91 without records)
- Rinodina septentrionalis - Wetmore (2005: 91 without records)
- Rinodina siouxiana - Wetmore (2005: 91 without records)
- Rinodina subminuta H. Magn. - Wetmore (1981: 490), Wetmore (2005: 91 without records)
- Rinodina tephraspis (Tuck.) Herre - Wetmore (1981: 490), Wetmore (2005: 84 without records)
- Rinodina thomsonii Sheard - Wetmore (2005: 91 without records)
- Rinodina santae-monicae H. Magn. - Sheard (1995: 124 as Rinodina thomsonii)
- Rinodina turfacea (Wahlenb.) Körb. - Wetmore (1981: 490)
- Rinodina vezdae H. Mayrhofer - Wetmore (2005: 91 without records)
- Rinodina wetmorei Sheard - Sheard (2010: 206 Type in MIN)
- Ropalospora chlorantha (Tuck.) S. Ekman - Wetmore (2005: 91 without records)
Ropalospora viridis - Wetmore (2005: 84 without records)
- Rufoplaca arenaria (Pers.) Arup, Søchting & Frödén - Wetmore (1981: 487 as Caloplaca arenaria), Wetmore (2005: 85 as Caloplaca arenaria without records)
- Rufoplaca oxfordensis (Fink) Arup, Søchting & Frödén - Wetmore (2005: 86 as Caloplaca oxfordensis without records)
- Rusavskia elegans (Link) S. Y. Kondr. & Kärnefelt - Wetmore (1981: 490 as Xanthoria elegans), Thomson (1984: 484 as Xanthoria elegans), Willson & Vinyard (1986: 12 as Xanthoria elegans)
- Rusavskia sorediata (Vain.) S. Y. Kondr. & Kärnefelt - Wetmore (1981: 490 as Xanthoria sorediata)
- Sagiolechia rhexoblephara (Nyl.) Zahlbr. - Thomson (1997: 575)
- Sarcogyne regularis Körb. - Thomson (1997: 579), Wetmore (2005: 91 without records)
- Sarcosagium campestre - Wetmore (2005: 91 without records)
- Sarea difformis - Wetmore (2005: 91 without records)
- Sarea resinae - Wetmore (2005: 91 without records)
- Schismatomma pericleum - Wetmore (2005: 91 without records)
- Sclerophora farinacea - Wetmore (2005: 91 without records)
- Sclerophora nivea (Hoffm.) Tibell - Fink (1910: 45 as Coniocybe pallida), Wetmore (1981: 488 as Coniocybe pallida), Wetmore (2005: 91 without records)
- Scoliciosporum chlorococcum (Graewe ex Stenh.) Vezda - Wetmore (1981: 487 as Bacidia chlorococca), Wetmore (2005: 91 without records)
- Scoliciosporum umbrinum (Ach.) Arnold - Wetmore (1981: 487 as Bacidia umbrina), Thomson (1997: 585), Wetmore (2005: 91 without records)
- Scytinium gelatinosum (With.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 263 as Leptogium sinuatum)
- Scytinium lichenoides (L.) Otálora, P. M. Jørg. & Wedin - Wetmore (1981: 489 as Leptogium lichenoides), Thomson (1984: 257 as Leptogium lichenoides)
- Scytinium subtile (Schrad.) Otálora, P. M. Jørg. & Wedin - Wetmore (1981: 489 as Leptogium minutissimum)
- Scytinium tenuissimum (Hoffm.) Otálora, P. M. Jørg. & Wedin - Wetmore (1981: 489 as Leptogium tenuissimum), Thomson (1984: 264 as Leptogium tenuissimum)
- Solitaria chrysophthalma (Degel.) Arup, Søchting & Frödén - Wetmore (1981: 487 as Caloplaca chrysophthalma), Wetmore (2005: 85 as Caloplaca chrysophthalma without records)
- Solorina saccata (L.) Ach. - Thomson (1984: 390), Wetmore (2005: 91 without records)
- Sphinctrina anglica Nyl. - Wetmore (2005: 91 without records)
- Sphinctrina leucopoda Nyl. - Wetmore (2005: 91 without records)
- Sphinctrina turbinata (Pers.) De Not. - Wetmore (2005: 91 without records)
- Spiloma fuliginosum Turner & Borrer - Wetmore (1981: 487 as Arthonia fuliginosa), Wetmore (2005: 85 as Arthonia fuliginosa without records)
- Spilonema revertens Nyl. - Wetmore (1981: 490), Wetmore (2005: 91 without records)
- Squamulea galactophylla (Tuck.) Arup, Søchting & Frödén - Wetmore (2005: 86 as Caloplaca galactophylla without records)
- Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén - Wetmore (2005: 86 as Caloplaca subsoluta without records)
- Staurothele areolata (Ach.) Lettau - Thomson (1997: 592), Wetmore (2005: 91 without records)
- Staurothele drummondii (Tuck.) Tuck. - Wetmore (1981: 490 as Staurothele clopima), Willson & Vinyard (1986: 12 as Staurothele clopima), Thomson (1997: 595), Wetmore (2005: 91 without records)
- Staurothele elenkinii Oxner - Wetmore (2005: 91 without records)
- Staurothele fissa (Taylor) Zwackh - Wetmore (1981: 490), Willson & Vinyard (1986: 12), Thomson (1997: 596), Wetmore (2005: 91 without records)
- Stenocybe major Nyl. ex Körb. - Wetmore (2005: 91 without records)
- Stenocybe pullatula (Ach.) Stein - Wetmore (2005: 91 without records)
- Stereocaulon dactylophyllum Flörke - Wetmore (1981: 490), Thomson (1984: 410), Wetmore (2005: 91 without records)
- Stereocaulon evolutum Graewe - Wetmore (2005: 84 without records)
- Stereocaulon paschale (L.) Hoffm. - Wetmore (1981: 490), Thomson (1984: 418), Wetmore (2005: 91 without records)
- Stereocaulon pileatum Ach. - Thomson (1984: 419), Wetmore (2005: 91 without records)
- Stereocaulon saxatile H. Magn. - Wetmore (1981: 490), Thomson (1984: 423), Wetmore (2005: 91 without records)
- Stereocaulon spathuliferum Vain. - Thomson (1984: 425)
- Stereocaulon taeniarum (H. Magn.) Kivistö - Wetmore (2005: 84 without records)
- Stereocaulon tomentosum E. Fries - Wetmore (1981: 490), Thomson (1984: 428), Wetmore (2005: 91 without records)
- Sticta beauvoisii Delise - Wetmore (2005: 91 without records)
- Sticta fuliginosa (Dicks.) Ach. - Wetmore (1981: 490), Wetmore (2005: 91 without records)
- Stictis urceolata (Ach.) Gilenstam - Wetmore (2005: 87 as Conotrema urceolatum without records)
- Strangospora microhaema (Norm. in Th. Fr.) R. A. Anderson - Wetmore (1981: 487 as Biatorella microhaema), Wetmore (2005: 91 without records)
- Strangospora moriformis (Ach.) Stein - Wetmore (1981: 487 as Biatorella moriformis), Thomson (1997: 599), Wetmore (2005: 91 without records)
- Strangospora pinicola - Wetmore (2005: 91 without records)
- Strigula jamesii (Swinsc.) R. C. Harris - Wetmore (1981: 490 erroneously as Strigula affinis)
- Strigula stigmatella (Ach.) R. C. Harris - Wetmore (1981: 487 as Arthopyrenia faginea)
- Strigula submuriformis (R. C. Harris) R. C. Harris - Wetmore (2005: 91 without records)
- Synalissa symphorea (Ach.) Nyl. - Wetmore (2005: 91 without records)
- Teloschistes chrysophthalmus (L.) Th. Fr. - Wetmore (1981: 490), Wetmore (2005: 91 without records)
- Tephromela atra (Huds.) Hafellner - Wetmore (2005: 91 without records)
- Thelocarpon epibolum Nyl. - Wetmore (2005: 91 without records)
- Thelocarpon laureri (Flot.) Nyl. - Wetmore (1981: 490), Wetmore (2005: 91 without records)
- Thrombium epigaeum (Pers.) Wallr. - Wetmore (1981: 490), Thomson (1997: 610), Wetmore (2005: 91 without records)
- Thyrea confusa Henssen - Wetmore (2005: 91 without records)
- Toninia aromatica (Turner ex Sm.) A. Massal. - Thomson (1997: 613), Wetmore (2005: 91 without records)
- Toninia ruginosa (Tuck.) Herre - Wetmore (2005: 91 without records)
- Toninia sedifolia (Scop.) Timdal - Wetmore (2005: 91 without records)
- Toninia squalida (Ach.) A. Massal. - Wetmore (2005: 91 without records)
- Trapelia coarctata (Turner ex Sm. & Sow.) M. Choisy - Thomson (1997: 621), Wetmore (2005: 91 without records)
- Trapelia involuta (Taylor) Hertel - Wetmore (2005: 91 without records)
- Trapelia obtegens (Th. Fr.) Hertel - Wetmore (2005: 91 without records)
- Trapelia placodioides Coppins & P. James - Wetmore (2005: 91 without records)
- Trapeliopsis flexuosa (Fr.) Coppins & P. James - Wetmore (1981: 488 as Lecidea aeruginosa), Thomson (1997: 623), Wetmore (2005: 91 without records)
- Trapeliopsis granulosa (Hoffm.) H. T. Lumbsch - Wetmore (1981: 489 as Lecidea granulosa), Thomson (1997: 624), Wetmore (2005: 91 without records)
- Trapeliopsis viridescens (Schrad.) Coppins & P. James - Wetmore (1981: 489 Micarea viridescens), Thomson (1997: 625), Wetmore (2005: 91 without records)
- Traponora varians (Ach.) J. Kalb & Kalb - Wetmore (2005: 90 as Pyrrhospora varians without records)
- Tuckermanella fendleri (Nyl.) Essl. - Wetmore (1981: 487 as Cetraria fendleri)
- Tuckermannopsis americana (Sprengel) Hale - Wetmore (1981: 487 as Cetraria halei), Thomson (1984: 81 as Cetraria halei)
- Tuckermannopsis orbata (Nyl.) M. J. Lai - Wetmore (1981: 487 as Cetraria orbata)
- Tuckermannopsis sepincola (Ehrh.) Hale - Wetmore (1981: 487 as Cetraria sepincola)
- Umbilicaria americana Poelt & T. H. Nash - Wetmore (2005: 91 without records)
- Umbilicaria arctica (Ach.) Nyl. - Thomson (1984: 444)
- Umbilicaria deusta (L.) Baumg. - Wetmore (1981: 490), Thomson (1984: 449), Wetmore (2005: 91 without records)
- Umbilicaria hyperborea (Ach.) Hoffm. var. hyperborea - Wetmore (1981: 490), Thomson (1984: 453), Wetmore (2005: 91 without records)
- Umbilicaria mammulata (Ach.) Tuck. - Wetmore (1981: 490), Wetmore (2005: 91 without records)
- Umbilicaria muehlenbergii (Ach.) Tuck. - Wetmore (1981: 487 as Actinogyra muehlenbergii), Thomson (1984: 26 as Actinogyra muehlenbergii), Wetmore (2005: 91 without records)
- Umbilicaria torrefacta (Lightf.) Schrad. - Wetmore (2005: 91 without records)
- Umbilicaria polyrrhiza (L.) Fr. - Thomson (1984: 27 as Actinogyra polyrrhiza)
- Umbilicaria vellea (L.) Ach. - Wetmore (1981: 490), Thomson (1984: 460), Wetmore (2005: 91 without records)
- Usnea amblyoclada (Müll. Arg.) Zahlbr. - Wetmore (2005: 91 without records)
- Usnea angulata Ach. - Wetmore (2005: 92 without records)
- Usnea cavernosa Tuck. - Wetmore (1981: 490), Thomson (1984: 463), Wetmore (2005: 92 without records)
- Usnea ceratina Ach. - Wetmore (2005: 92 without records)
- Usnea dasopoga (Ach.) Nyl. - Thomson (1984: 465)
- Usnea filipendula Stirt. - Wetmore (1981: 490), Wetmore (2005: 92 without records)
- Usnea fulvoreagens (Räsänen) Räsänen - Wetmore (1981: 490)
- Usnea hirta (L.) Weber ex F. H. Wigg. - Wetmore (1981: 490), Thomson (1984: 466), Wetmore (2005: 92 without records)
- Usnea lapponica Vain. - Wetmore (2005: 92 without records)
- Usnea longissima Ach. - Wetmore (1981: 490 Extinct), Wetmore (2005: 92 without records)
- Usnea mutabilis Stirt. - Wetmore (2005: 92 without records)
- Usnea rubicunda Stirt. - Wetmore (2005: 92 without records)
- Usnea subfloridana Stirt. - Wetmore (1981: 490), Wetmore (2005: 92 without records)
- Vahliella leucophaea (Vahl) P. M. Jørg. - Wetmore (1981: 489 as Pannaria leucophaea), Wetmore (2005: 87 as Fuscopannaria leucophaea without records)
- Variolaria multipunctoides (Dibben) Lendemer, Hodkinson & R. C. Harris - Wetmore (1981: 489 as Pertusaria multipunctoides)
- Variolaria ophthalmiza Nyl. - Wetmore (1981: 489 as Pertusaria ophthalmiza)
- Variolaria trachythallina (Erichsen) Lendemer, Hodkinson & R. C. Harris - Wetmore (1981: 489 as Pertusaria trachythallina)
- Varicellaria velata (Turner) I. Schmitt & Lumbsch - Wetmore (1981: 489 as Pertusaria velata)
- Verrucaria aethiobola Wahlenb. - Thomson (1997: 632)
- Verrucaria fayettensis Servít - Wetmore (2005: 84 without records)
- Verrucaria glaucovirens Grummann - Wetmore (2005: 92 without records)
- Verrucaria margacea (Wahlenb. in Ach.) Wahlenb. - Wetmore (1981: 490), Thomson (1997: 639), Wetmore (2005: 92 without records)
- Verrucaria muralis Ach. - Thomson (1997: 641), Wetmore (2005: 92 without records)
- Verrucaria nigrescens Pers. - Wetmore (1981: 490), Thomson (1997: 642), Wetmore (2005: 92 without records)
- Verrucaria nigrescentoidea Fink ex J. Hedrick - Wetmore (2005: 92 without records)
- Verrucaria rupestris Schrad. - Thomson (1997: 643)
- Violella fucata (Stirt.) T. Sprib. - Wetmore (2005: 84 as Mycoblastus fucatus without records)
- Vulpicida pinastri (Scop.) S. Gray - Wetmore (1981: 487 as Cetraria pinastri), Thomson (1984: 93 as Cetraria pinastri)
- Xanthocarpia feracissima (H. Magn.) Frödén, Arup & Søchting - Wetmore (1981: 487 as Caloplaca feracissima), Wetmore (2005: 85 as Caloplaca feracissima without records)
- Xanthoparmelia angustiphylla (Gyeln.) Hale - Wetmore (1981: 489 erroneously as Parmelia hypopsila), Wetmore (2005: 92 without records)
- Xanthoparmelia conspersa (Ehrh. ex Ach.) Hale - Wetmore (1981: 489 as Parmelia conspersa), Willson & Vinyard (1986: 12), Wetmore (2005: 92 without records)
- Xanthoparmelia cumberlandia (Gyeln.) Hale - Wetmore (1981: 489 as Parmelia cumberlandia), Willson & Vinyard (1986: 12), Wetmore (2005: 92 without records)
- Xanthoparmelia hypomelaena (Hale) Hale - Wetmore (2005: 92 without records)
- Xanthoparmelia rimalis (Kurok.) Elix, A. Thell & Søchting - Wetmore (2005: 92 as Xanthoparmelia lineola without records)
- Xanthoparmelia mexicana (Gyeln.) Hale - Wetmore (1981: 489 as Parmelia mexicana), Wetmore (2005: 92 without records)
- Xanthoparmelia plittii (Gyeln.) Hale - Wetmore (1981: 489 as Parmelia plittii), Willson & Vinyard (1986: 12), Wetmore (2005: 92 without records)
- Xanthoparmelia somloensis (Gyeln.) Hale - Wetmore (2005: 92 without records)
- Xanthoparmelia taractica (Kremp.) Hale - Wetmore (1981: 489 as Parmelia taractica), Thomson (1984: 480)
- Xanthoparmelia tasmanica (Hook. f. & Taylor) Hale - Wetmore (2005: 92 without records)
- Xanthomendoza fallax Søchting, Kärnefelt & S. Y. Kondr. - Wetmore (1981: 490 as Xanthoria fallax), Thomson (1984: 486 as Xanthoria fallax), Willson & Vinyard (1986: 12 as Xanthoria fallax), Wetmore (2005: 92 as Xanthoria fallax without records)
- Xanthoria candelaria - Wetmore (2005: 92 as Xanthoria candelaria without records)
- Xanthoria elegans - Wetmore (2005: 92 as Xanthoria elegans without records)
- Xanthoria fulva - Wetmore (2005: 92 as Xanthoria fulva without records)
- Xanthoria hasseana - Wetmore (2005: 92 as Xanthoria hasseana without records)
- Xanthoria polycarpa - Wetmore (2005: 92 as Xanthoria polycarpa without records)
- Xanthoria sorediata - Wetmore (2005: 92 as Xanthoria sorediata without records)
- Xanthoria ulophyllodes - Wetmore (2005: 92 as Xanthoria ulophyllodes without records)
- Xylographa disseminata Willey - Wetmore (1981: 490), Wetmore (2005: 92 without records)
- Xylographa parallela (Ach.) Fr. - Wetmore (1981: 490 as Xylographa abietina), Wetmore (2005: 92 without records)
- Xylographa vitiligo (Ach.) J. R. Laundon - Wetmore (1981: 490), Wetmore (2005: 92 without records)
- Xylopsora friesii (Ach.) Bendiksby & Timdal - Wetmore (1981: 489 as Lecidea friesii), Thomson (1997: 247 as Hypocenomyce friesii)