Checklist of lichens of Ohio (USA)
Version 31 December 2017
- Acarospora dispersa H. Magn. - Andreas et al. (2007: 59)
- Acarospora fuscata (Schrad.) Arnold - Claassen (1912: 544), Claassen (1917: 62 as Acarospora cervina var. fuscata), Andreas et al. (2007: 59)
- Acarospora macrospora (Hepp) A. Massal. ex Bagl. - Hambleton (1910: 42 as Acarospora squamulosa)
- Acrocordia conoidea (Fr.) Körb. - Wolfe (1940: 6 as Arthopyrenia conoidea)
- Acrocordia gemmata (Ach.) A. Massal. - Hambleton (1910: 41 as Pyrenula gemmata), Wolfe (1940: 6 as Arthopyrenia alba)
- Acrocordia megalospora (Fink) R. C. Harris - Claassen (1917: 62 as Arthopyrenia macrospora), Wolfe (1940: 6 as Arthopyrenia finkii)
- Agonimia opuntiella (Buschardt & Poelt) Vezda - Andreas et al. (2007: 59)
- Ahtiana aurescens (Tuck.) A. Thell & Randlane - Hambleton (1910: 43 as Cetraria aurescens), Flenniken & Showman (1990: 132 as Tuckermannopsis aurescens)
- Alyxoria varia (Pers.) Ertz & Tehler - Hambleton (1910: 41 as Opegrapha varia), Claassen (1912: 546 as Opegrapha varia), Wolfe (1940: 8 as Opegrapha varia), Wolfe (1940: 8 as Opegrapha lichenoides)
- Amandinea polyspora (Willey) E. Lay & P. May - Andreas et al. (2007: 59)
- Amandinea punctata (Hoffm.) Coppins & Scheid. - Hambleton (1910: 43 as Buellia myriocarpa), Claassen (1917: 62 as Buellia myriocarpa), Andreas et al. (2007: 59)
- Anaptychia palmulata (Michx.) Vain. - Flenniken & Showman (1990: 130), Andreas et al. (2007: 59)
- Anisomeridium distans (Willey) R. C. Harris - Andreas et al. (2007: 59)
- Anisomeridium leucochlorum Müll. Arg. - Wolfe (1940: 6 as Arthopyrenia leucochlora)
- Anisomeridium polypori (Ellis & Everh.) M. E. Barr - Andreas et al. (2007: 59)
- Anzia colpodes (Ach.) Stizenb. - Hambleton (1910: 43), Flenniken & Showman (1990: 130)
- Arthonia atra (Pers.) A. Schneid. - Wolfe (1940: 8 as Opegrapha atra)
- Arthonia dispersa (Schrad.) Nyl. - Hambleton (1910: 41), Wolfe (1940: 7) Nom. illegit., Art. 53.1 fide IF
- Arthonia polymorpha Ach. - Hambleton (1910: 41), Wolfe (1940: 7)
- Arthonia punctiformis Ach. - Hambleton (1910: 41), Claassen (1912: 544), Wolfe (1940: 8)
- Arthonia pyrrhuliza Nyl. - Hambleton (1910: 41), Wolfe (1940: 8)
- Arthonia quintaria Nyl. - Andreas et al. (2007: 59)
- Arthonia radiata (Pers.) Ach. - Hambleton (1910: 41), Claassen (1912: 544), Claassen (1912: 544 as Arthonia radiata var. swartziana), Wolfe (1940: 8)
- Arthonia ruana A. Massal. - Andreas et al. (2007: 59 as Arthothelium ruanum)
- Arthonia rupicola Fink ex J. Hedrick - Wolfe (1940: 8)
- Arthothelium spectabile A. Massal. - Hambleton (1910: 41), Claassen (1912: 544), Wolfe (1940: 8), Andreas et al. (2007: 59)
- Arthothelium taediosum (Nyl.) Müll. Arg. - Andreas et al. (2007: 59)
- Bacidia arceutina (Ach.) Arnold - Wolfe (1940: 14)
- Bacidia coprodes (Körb.) Lettau - Claassen (1917: 62 erroneously as Bilimbia trachona), Wolfe (1940: 13 as erroneously as Bilimbia trachona), Wolfe (1940: 13 as Bilimbia granosa), Andreas et al. (2007: 59 First record claimed), Andreas et al. (2007: 59 erroneously as Bacidia trachona)
- Bacidia laurocerasi (Delise ex Duby) Zahlbr. - Claassen (1917: 62 as Bacidia endoleuca),
- Bacidia polychroa (Th. Fr.) Körb. - Hambleton (1910: 42 as Bacidia fuscorubella), Claassen (1912: 544 as Bacidia fuscorubella)
- Bacidia rubella (Hoffm.) A. Massal. - Hambleton (1910: 42), Claassen (1912: 544),
- Bacidia schweinitzii (Fr. ex Tuck.) A. Schneid. - Hambleton (1910: 42), Claassen (1912: 544), Andreas et al. (2007: 59)
- Bacidia suffusa (Fr.) A. Schneid. - Hambleton (1910: 42), Claassen (1912: 544 as Bacidia fuscorubella var. suffusa)
- Bacidina inundata (Fr.) Vezda - Claassen (1917: 62 as Bacidia inundata)
- Biatora printzenii Tønsberg - Andreas et al. (2007: 59 First record)
- Biatora vernalis (L.) Fr. - Claassen (1912: 546 as Lecidea vernalis), Wolfe (1940: 13 as Lecidea vernalis)
- Bilimbia microcarpa (Th. Fr.) Th. Fr. - Wolfe (1940: 13)
- Bilimbia sabuletorum (Schreb.) Arnold - Claassen (1912: 544 as Bilimbia hypnophila), Wolfe (1940: 13 as xxx)
- Blastenia ferruginea (Huds.) A. Massal. - Hambleton (1910: 43)
- Blennothallia crispa (Weber ex F. H. Wigg.) Otálora, P.M. Jørg. & Wedin - Hambleton (1910: 42 as Collema crispum), Wolfe (1940: 10 as Collema crispum), Flenniken & Showman (1990: 131 as Collema crispum)
- Brigantiaea leucoxantha (Sprengel) R. Sant. & Hafellner - Hambleton (1910: 42 as Lopadium leucoxanthum)
- Bryobilimbia ahlesii (Körb.) Fryday, Printzen & S. Ekman - Andreas et al. (2007: 61 as Lecidea ahlesii)
- Bryobilimbia hypnorum (Lib.) Fryday, Printzen & S. Ekman - Andreas et al. (2007: 61 as Lecidea hypnorum)
- Bryoria chalybeiformis (L.) Brodo & D. Hawksw. - Claassen (1912: 544 as Alectoria jubata var. chalybeiformis)
- Bryoria furcellata (Fr.) Brodo & D. Hawksw. - Flenniken & Showman (1990: 130)
- Buellia disciformis (Fr.) Mudd - Hambleton (1910: 43 as Buellia parasema)
- Buellia erubescens Arnold - Andreas et al. (2007: 59 as Buellia stillingiana)
- Buellia spuria (Schaer.) Anzi - Claassen (1917: 62)
- Caeruleum heppii (Nägeli ex Körb.) K. Knudsen & B. Abbott - Andreas et al. (2007: 62 as Myriospora heppii)
- Caeruleum immersum (Fink in Hendrick) K. Knudsen & B. Abbott - Hendrick ??? (xx: xx Type), Andreas et al. (2007: 62 as Myriospora immersa), Knudsen & Abbott ??? (2012???: xx)
- Calicium abietinum Pers. - Andreas et al. (2007: 59)
- Calicium lenticulare (Hoffm.) Fr. - Wolfe (1940: 7)
- Caloplaca camptidia (Tuck.) Zahlbr. - Hambleton (1910: 43), Andreas et al. (2007: 59)
- Caloplaca cerina (Ehrh. ex Hedwig) Th. Fr. - Hambleton (1910: 43), Claassen (1912: 547 as Placodium cerinum), Andreas et al. (2007: 59)
- Caloplaca cinnabarina (Ach.) Zahlbr. - Hambleton (1910: 43 as )
- Caloplaca microphyllina (Tuck.) Hasse - Andreas et al. (2007: 59)
- Candelaria concolor (Dicks.) B. Stein - Hambleton (1910: 43), Claassen (1912: 548 as Teloschistes concolor), Flenniken & Showman (1990: 130), Andreas et al. (2007: 59)
- Candelaria fibrosa (Fr.) Müll. Arg. - Flenniken & Showman (1990: 130)
- Candelariella aurella (Hoffm.) Zahlbr. - Andreas et al. (2007: 59)
- Candelariella reflexa (Nyl.) Lettau - Andreas et al. (2007: 59)
- Candelariella xanthostigma (Ach.) Lettau - Andreas et al. (2007: 59)
- Canoparmelia caroliniana (Nyl.) Elix & Hale - Flenniken & Showman (1990: 131), Showman & Flenniken (2004 fide Andreas et al. 2007), Andreas et al. (2007: 59)
- Canoparmelia texana (Tuck.) Elix & Hale - Showman (1981: 178 as Pseudoparmelia texana), Flenniken & Showman (1990: 131), Andreas et al. (2007: 59)
- Catillaria nigroclavata (Nyl.) Schuler - Andreas et al. (2007: 59)
- Cetraria arenaria Kärnefelt - Flenniken & Showman (1990: 131)
- Cetraria islandica (L.) Ach. - Claassen (1912: 544)
- Cetrelia chicitae (W. L. Culb.) W. L. Culb. & C. F. Culb. - Flenniken & Showman (1990: 131)
- Cetrelia olivetorum (Nyl.) W. L. Culb. & C. F. Culb. - Andreas et al. (2007: 59 thought to be extirpated, refound)
- Chaenotheca chrysocephala (Turn.) Th. Fr. - Hambleton (1910: 41), Wolfe (1940: 7)
- Chaenotheca furfuracea (L.) Tibell - Wolfe (1940: 7 as Coniocybe furfuracea)
- Chrysothrix caesia (Flot.) Körb. - Hambleton (1910: 41 as Arthonia lecideella), Wolfe (1940: 7 as Arthonia lecideella)Andreas et al. (2007: 59 as Arthonia caesia)
- Chrysothrix candelaris (L.) J. R. Laundon - Andreas et al. (2007: 60)
- Cladonia apodocarpa Robb. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia arbuscula (Wallr.) Flot. subsp. arbuscula - Hambleton (1910: 42 as Cladonia sylvatica), Claassen (1912: 545 as Cladonia sylvatica), Armitage (1971: 244), Flenniken & Showman (1990: 131 as Cladina arbuscula)
- Cladonia caespiticia (Pers.) Flörke - Hambleton (1910: 42), Claassen (1912: 544), Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia cariosa (Ach.) Sprengel - Hambleton (1910: 42)
- Cladonia caroliniana Schwein. ex Tuck. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia cervicornis (Ach.) Flotow - Flenniken & Showman (1990: 131)
- Cladonia chlorophaea (Flörke ex Sommerf.) Sprengel - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia coccifera (L.) Willd. - Hambleton (1910: 42), Claassen (1912: 544)
- Cladonia coniocraea (Flörke) Sprengel - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia cornuta (L.) Hoffm. - Hambleton (1910: 42)
- Cladonia crispata (Ach.) Flotow - Hambleton (1910: 42)
- Cladonia cristatella Tuck. - Hambleton (1910: 42), Claassen (1912: 545), Armitage (1971: 244), Cooke (1973: 196), Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia cryptochlorophaea Asah. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia cylindrica (A. Evans) A. Evans - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia didyma (Fée) Vain. - Andreas et al. (2007: 60)
- Cladonia fimbriata (L.) Fr. - Hambleton (1910: 42), Claassen (1912: 545), Flenniken & Showman (1990: 131)
- Cladonia fimbriata (L.) Fr. var. adspersa - Hambleton (1910: 42 as Cladonia fimbriata var. adspersa)
- Cladonia fimbriata (L.) Fr. var. simplex - Hambleton (1910: 42 as Cladonia fimbriata var. simplex), Claassen (1912: 545 as Cladonia fimbriata var. simplex)
- Cladonia floridana Vain. - Flenniken & Showman (1990: 131)
- Cladonia furcata (Huds.) Schrad. - Hambleton (1910: 42), Claassen (1912: 545), Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia furcata (Huds.) Schrad. var. racemosa - Hambleton (1910: 42 as Cladonia furcata var. racemosa)
- Cladonia furcata (Huds.) Schrad. var. subulata - Hambleton (1910: 42 as Cladonia furcata var. subulata)
- Cladonia gracilis (L.) Willd. - Hambleton (1910: 42), Claassen (1912: 545)
- Cladonia gracilis (L.) Willd. var. hybrida - Hambleton (1910: 42 as Cladonia gracilis var. hybrida)
- Cladonia grayi G. K. Merr. ex Sandst. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia humilis (With.) J. R. Laundon - Flenniken & Showman (1990: 131)
- Cladonia incrassata Flörke - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia macilenta Hoffm. - Hambleton (1910: 42), Claassen (1917: 62), Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia macilenta Hoffm. var. bacillaris Nyl. - Claassen (1912: 544 as Cladonia bacillaris), Flenniken & Showman (1990: 131 as Cladonia bacillaris)
- Cladonia mateocyatha Robb. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia ochrochlora Flörke - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia parasitica (Hoffm.) Hoffm. - Hambleton (1910: 42 as Cladonia delicata), Claassen (1917: 62 as Cladonia delicata), Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia petrophila R. C. Harris - Andreas et al. (2007: 60)
- Cladonia peziziformis (With.) J. R. Laundon - Hambleton (1910: 42 as Cladonia mitrula), Claassen (1912: 545 as Cladonia mitrula), Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia phyllophora Hoffm. - Hambleton (1910: 42 as Cladonia degenerans)
- Cladonia piedmontensis G. K. Merr. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia pleurota (Flörke) Schaer. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia pyxidata (L.) Hoffm. - Hambleton (1910: 42), Claassen (1912: 545), Cooke (1973: 196), Flenniken & Showman (1990: 131)
- Cladonia ramulosa (With.) J. R. Laundon - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia rangiferina (L.) Weber ex F. H. Wigg. - Hambleton (1910: 42), Claassen (1912: 545), Flenniken & Showman (1990: 131 as Cladina rangiferina), Andreas et al. (2007: 60)
- Cladonia rei Schaer. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia robbinsii A. Evans - Flenniken & Showman (1990: 131)
- Cladonia squamosa (Scop.) Hoffm. - Hambleton (1910: 42), Claassen (1912: 545), Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia squamosa (Scop.) Hoffm. var. ventricosa - Hambleton (1910: 42 as ),
- Cladonia stellaris (Opiz) Pouzar & Vezda - Hambleton (1910: 42 as Cladonia alpestris)
- Cladonia strepsilis (Ach.) Grogn. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Cladonia subcariosa Nyl. - Claassen (1912: 545), Flenniken & Showman (1990: 131 as Cladonia polycarpoides), Flenniken & Showman (1990: 131 as Cladonia sobolescens), Andreas et al. (2007: 60 as Cladonia polycarpoides), Andreas et al. (2007: 60 as Cladonia sobolescens)
- Cladonia subtenuis (Abbayes) Mattick - Flenniken & Showman (1990: 131 as Cladina subtenuis), Andreas et al. (2007: 60)
- Cladonia subulata (L.) F. H. Wigg. - Claassen (1912: 545 as Cladonia fimbriata var. cornutoradiata), Claassen (1912: 545 as Cladonia fimbriata var. subulata)
- Cladonia uncialis (L.) Weber ex Wigg. - Hambleton (1910: 42), Flenniken & Showman (1990: 131)
- Cladonia verticillata (Hoffm.) Schaer. - Hambleton (1910: 42), Claassen (1912: 545), Cooke (1973: 196), Andreas et al. (2007: 60)
- Coccocarpia palmicola (Sprengel) Arvidsson & D. Galloway - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Coenogonium pineti (Ach.) Lücking & Lumbsch - Andreas et al. (2007: 60)
- Collema flaccidum (Ach.) Ach. - Hambleton (1910: 42), Wolfe (1940: 10 as Synechoblastus rupestris)
- Collema furfuraceum (Arnold) Du Rietz - Flenniken & Showman (1990: 131)
- Collema nigrescens (Huds.) DC. - Hambleton (1910: 42), Claassen (1912: 548 as Synechoblastus nigrescens), Wolfe (1940: 9 as Synechoblastus nigrescens), Flenniken & Showman (1990: 131)
- Collema ryssoleum (Tuck.) A. Schneider - Hambleton (1910: 42) Wolfe (1940: 10 as Synechoblastus ryssoleus)
- Collema subflaccidum Degel. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Crespoa crozalsiana (B. de Lesd. ex Harm.) Elix & Hale - Armitage (1971: 244 as Parmelia crozalsiana), Flenniken & Showman (1990: 131 as Canoparmelia crozalsiana), Andreas et al. (2007: 59 as Canoparmelia crozalsiana)
- Cresponea chloroconia (Tuck.) Egea & Torrente - Hambleton (1910: 42 as Lecanactis premnea var. chloroconia), Wolfe (1940: 9 as Lecanactis premnea var. chloroconia)
- Cresponea premnea (Ach.) Egea & Torrente - Hambleton (1910: 42 as Lecanactis premnea), Wolfe (1940: 9 as Lecanactis premnea)
- Crocodia aurata (Ach.) Link - Hambleton (1910: 42 as Sticta aurata), Wolfe (1940: 11 as Sticta aurata), Flenniken & Showman (1990: 132 as Pseudocyphellaria aurata)
- Cyphelium tigillare (Pers.) Th. Fr. - Hambleton (1910: 41), Wolfe (1940: 7)
- Cystocoleus ebeneus (Dillwyn) Thwaites - Andreas et al. (2007: 60)
- Dermatocarpon americanum Vain. - Heidmarsson (2003: 466)
- Dermatocarpon luridum (With.) J. R. Laundon - Hambleton (1910: 41 as Dermatocarpon aquaticum), Wolfe (1940: 5 as Dermatocarpon aquaticum), Armitage (1971: 244 as Dermatocarpon fluviatile), Flenniken & Showman (1990: 131), Andreas et al. (2007: 60)
- Dermatocarpon miniatum (L.) W. Mann - Hambleton (1910: 41), Claassen (1912: 545), Wolfe (1940: 5), Flenniken & Showman (1990: 131)
- Dermatocarpon miniatum (L.) W. Mann var. complicatum (Light.) Th. Fr. - Wolfe (1940: 5)
- Dermatocarpon muhlenbergii (Ach.) Müll. Arg. - Andreas et al. (2007: 61)
- Dibaeis absoluta (Tuck.) Kalb & Gierl - Flenniken & Showman (1990: 130 as Baeomyces absolutus)
- Dibaeis baeomyces (L. f.) Rambold & Hertel - Flenniken & Showman (1990: 130 as Baeomyces roseus), Andreas et al. (2007: 61)
- Diploschistes muscorum (Scop.) R. Sant. - Wolfe (1940: 9 as Urceolaria scruposa var. parasitica)
- Dirinaria frostii (Tuck.) Hale & W. Culb. - Showman (1977: 26), Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Enchylium bachmanianum (Fink) Otálora, P. M. Jørg. & Wedin - Wolfe (1940: 10 as Collemodes bachmanianum), Flenniken & Showman (1990: 131 as Collema bachmanianum)
- Enchylium coccophorum (Tuck.) Otálora, P. M. Jørg. & Wedin - Showman (1981: 178 as Collema coccophorum), Flenniken & Showman (1990: 131 as Collema coccophorum), Andreas et al. (2007: 60 as Collema coccophorum)
- Enchylium conglomeratum (Hoffm.) Otálora, P. M. Jørg. & Wedin - Hambleton (1910: 42 as Collema cyrtaspis), Hambleton (1910: 42 as Collema pycnocarpum), Wolfe (1940: 9 as Synechoblastus cyrtaspis), Wolfe (1940: 9 as Synechoblastus ohioensis), Wolfe (1940: 9 as Synechoblastus pycnocarpus), Flenniken & Showman (1990: 131 as Collema conglomeratum)
- Enchylium polycarpon (Hoffm.) Otálora, P. M. Jørg. & Wedin - Flenniken & Showman (1990: 131 as Collema polycarpon)
- Enchylium tenax (Sw.) Gray - Hambleton (1910: 42 as Collema tenax), Wolfe (1940: 10 as Collema tenax), Wolfe (1940: 10 as Collema pulposum), Flenniken & Showman (1990: 131 as Collema tenax)
- Endocarpon diffractellum (Nyl.) Gueidan & Cl. Roux - Wolfe (1940: 5 as Staurothele diffractella), Andreas et al. (2007: 64 as Staurothele diffractella)
- Endocarpon pallidulum (Nyl.) Nyl. - Andreas et al. (2007: 61)
- Endocarpon pusillum Hedw. - Hambleton (1910: 41 as Dermatocarpon pusillum), Wolfe (1940: 6)
- Enterographa hutchinsiae (Leight.) A. Massal. - Andreas et al. (2007: 61 First record)
- Ephebe lanata (L.) Vain. - Flenniken & Showman (1990: 131)
- Evernia mesomorpha Nyl. - Flenniken & Showman (1990: 131)
- Evernia prunastri (L.) Ach. - Claassen (1912: 545)
- Flakea papillata O. E. Erikss. - Andreas et al. (2007: 61)
- Flavoparmelia baltimorensis (Gyeln. & Foriss) Hale - Showman (1981: 178 as Pseudoparmelia baltimorensis), Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Flavoparmelia caperata (L.) Hale - Hambleton (1910: 43 as Parmelia cylisphora), Claassen (1912: 546 as Parmelia caperata), Cooke (1973: 196 as Parmelia caperata), Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Flavoplaca citrina (Hoffm.) Arup, Frödén & Søchting - Andreas et al. (2007: 59 as Caloplaca citrina)
- Flavopunctelia flaventior (Stirton) Hale - Flenniken & Showman (1990: 131)
- Flavopunctelia soredica (Nyl.) Hale - Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Fuscopannaria leucosticta (Tuck.) P. M. Jørg. - Hambleton (1910: 42 as Pannaria leucosticta), Wolfe (1940: 11 as Pannaria leucosticta), Flenniken & Showman (1990: 131 as Pannaria leucosticta)
- Gassicurtia vernicoma (Tuck.) Marbach - Andreas et al. (2007: 59 as Buellia vernicoma)
- Graphis scripta (L.) Ach. - Hambleton (1910: 41), Claassen (1912: 545), Wolfe (1940: 8), Andreas et al. (2007: 61)
- Gyalecta jenensis (Batsch.) Zahlbr. - Claassen (1912: 545 as Gyalecta cupularis), Wolfe (1940: 9)
- Gyalolechia flavorubescens (Hudson) Søchting, Frödén & Arup - Hambleton (1910: 43 as Caloplaca aurantiaca), Claassen (1912: 547 as Placodium aurantiacum)
- Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup - Andreas et al. (2007: 59 as Caloplaca flavovirescens)
- Heppia despreauxii (Mont.) Tuck. - Wolfe (1940: 10 as Solorinaria desprauxii)
- Heppia lutosa (Ach.) Nyl. - Hambleton (1910: 42 as Heppia virescens)
- Heterodermia albicans (Pers.) Swinscow & Krog. - Showman (1981: 178), Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Heterodermia casarettiana (A. Massal.) Trevisan - Flenniken & Showman (1990: 131)
- Heterodermia echinata (Taylor) W. L. Culb. - Flenniken & Showman (1990: 131)
- Heterodermia galactophylla (Tuck.) W. L. Culb. - Hambleton (1910: 43 as Anaptychia comosa)
- Heterodermia granulifera (Ach.) Culb. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Heterodermia hypoleuca (Muhl.) Trevisan - Hambleton (1910: 43 as Anaptychia hypoleuca), Claassen (1912: 547 as Physcia hypoleuca), Armitage (1971: 244 as Anaptychia hypoleuca), Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Heterodermia leucomela (L.) Poelt - Hambleton (1910: 43 as Anaptychia leucomela), Flenniken & Showman (1990: 131 as Heterodermia leucomelos)
- Heterodermia obscurata (Nyl.) Trevisan - Armitage (1971: 244 as Anaptychia obscurata), Cooke (1973: 196 as Anaptychia obscurata), Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Heterodermia pseudospeciosa (Kurok.) W. L. Culb. - Andreas et al. (2007: 61 First record)
- Heterodermia speciosa (Wulfen) Trevisan - Hambleton (1910: 43 as Anaptychia speciosa), Claassen (1912: 547 as Physcia speciosa), Cooke (1973: 196 as Anaptychia speciosa), Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Heterodermia squamulosa (Degel.) W. L. Culb. - Flenniken & Showman (1990: 131)
- Hyperphyscia adglutinata (Flörke) H. Mayrhofer & Poelt - Hambleton (1910: 43 as Physcia adglutinata), Claassen (1912: 547 as Physcia adglutinata), Flenniken & Showman (1990: 131)
- Hyperphyscia syncolla (Tuck. ex Nyl.) Kalb - Flenniken & Showman (1990: 131)
- Hypocenomyce scalaris (Ach.) M. Choisy - Andreas et al. (2007: 61)
- Hypogymnia physodes (L.) Nyl. - Claassen (1912: 546 as Parmelia physodes), Flenniken & Showman (1990: 131)
- Hypotrachyna livida (Taylor) Hale - Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Hypotrachyna horrescens (Taylor) Krog & Swinscow - Flenniken & Showman (1990: 131 as Parmelinopsis horrescens)
- Hypotrachyna minarum (Vain.) Krog & Swinscow - Flenniken & Showman (1990: 131 as Parmelinopsis minarum), Andreas et al. (2007: 62 as Parmelinopsis minarum)
- Hypotrachyna showmanii Hale - Hale (1976: 78 Type in US), Showman (1977: 26), Andreas et al. (2007: 61)
- Imshaugia aleurites (Ach.) S. F. Meyer - Hambleton (1910: 43 as Cetraria aleurites), Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Imshaugia placorodia (Ach.) S. F. Meyer - Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Ionaspis alba Lutzoni - Andreas et al. (2007: 61)
- Ionaspis lacustris (With.) Lutzoni - Andreas et al. (2007: 61)
- Kirschsteiniothelia aethiops Körb. - Wolfe (1940: 6 as Microthelia micula auct.)
- Lasallia papulosa (Ach.) Llano - Flenniken & Showman (1990: 131), Andreas et al. (2007: 61)
- Lasallia pensylvanica (Hoffm.) Llano - Flenniken & Showman (1990: 131 but spelled pennsylvanica fide IF)
- Lasallia pustulata (L.) Mérat - Hambleton (1910: 42 as Gyrophora pustulata)
- Lathagrium fuscovirens (With.) Otálora, P. M. Jørg. & Wedin - Wolfe (1940: 10 as Collema furvum)
- Lecania naegelii (Hepp) Diederich & van den Boom - Claassen (1912: 544 as Bilimbia naegelii), Wolfe (1940: 13 as Bilimbia naegelii)
- Lecanora cinereofusca H. Magn. var. appalachensis Brodo - Andreas et al. (2007: 61 First record)
- Lecanora hagenii (Ach.) Ach. - Hambleton (1910: 43), Claassen (1912: 545),
- Lecanora hybocarpa (Tuck.) Brodo - Tuckerman in Lea (1849: 45 as Parmelia hybocarpa Type in FH-TUCK), Brodo (1984: 134), Andreas et al. (2007: 61)
- Lecanora miculata Ach. - Hambleton (1910: 43)
- Lecanora muralis (Schreb.) Rabenh. - Claassen (1912: 545 as Lecanora muralis),
- Lecanora albella (Pers.) Ach. var. albella - Hambleton (1910: 43 as Lecanora pallida), Claassen (1912: 545 as Lecanora pallida)
- Lecanora allophana Nyl. - Hambleton (1910: 43 as Lecanora subfusca), Claassen (1912: 545 as Lecanora subfusca), Claassen (1912: 545 as Lecanora subfusca var. allophana)
- Lecanora campestris (Schaer.) Hue - Claassen (1917: 62 as Lecanora subfusca var. campestris)
- Lecanora pulicaris (Pers.) Ach. - Andreas et al. (2007: 61)
- Lecanora strobilina (Spreng.) Kieff. - Andreas et al. (2007: 61)
- Lecanora subimmergens Vain. - Andreas et al. (2007: 61 First record)
- Lecanora thysanophora R. C. Harris - Andreas et al. (2007: 61)
- Lecanora varia (Hoffm.) Ach. - Hambleton (1910: 43), Claassen (1912: 545)
- Lecidea coarctata (J. E. Smith) Nyl. - Claassen (1912: 545 as Lecidea coarctata), Wolfe (1940: 12 as Lecidea coarctata)
- Lecidea congesta Fink - Wolfe (1940: 12)
- Lecidea cyrtidia Tuck. - Claassen (1912: 546), Wolfe (1940: 12), Andreas et al. (2007: 61)
- Lecidea intropallida Fink - Wolfe (1940: 13)
- Lecidea lapicida (Ach.) Ach. var. lapicida - Claassen (1917: 62 as Lecidea lactea)
- Lecidea lapicida (Ach.) Ach. var. pantherina Ach. - Wolfe (1940: 13 as Lecidea pantherina)
- Lecidea micytho Tuck. ex Willey - Wolfe (1940: 13)
- Lecidea plebeja Nyl. - Claassen (1917: 62 as Lecidea myriocarpoides), Wolfe (1940: 13 as Lecidea myriocarpoides), Andreas et al. (2007: 61)
- Lecidea promiscens Nyl. - Wolfe (1940: 13)
- Lecidea pycnocarpa (Körb.) Ohlert - Claassen (1917: 62)
- Lecidea varians Ach. - Hambleton (1910: 42), Wolfe (1940: 13), Andreas et al. (2007: 64 as Pyrrhospora varians)
- Lecidella elaeochroma (Ach.) M. Choisy - Claassen (1912: 544 as Buellia parasema), Wolfe (1940: 13 as Lecidea parasema)
- Lecidoma demissum (Rutstr.) Gotth. Schneider & Hertel - Wolfe (1940: 14 as Psora demissa)
- Lepraria caesiella R. C. Harris - Andreas et al. (2007: 61)
- Lepraria finkii (B. de Lesd.) R. C. Harris - Andreas et al. (2007: 61 as Lepraria lobificans)
- Lepraria membranacea (Dicks.) Vain. - Claassen (1917: 62 as Amphiloma lanuginosum)
- Lepraria neglecta (Nyl.) Erichsen - Andreas et al. (2007: 61)
- Lepraria normandinoides Lendemer & R. C. Harris - Andreas et al. (2007: 62)
- Leptogium austroamericanum (Malme) Dodge - Flenniken & Showman (1990: 131)
- Leptogium burnetiae Dodge - Flenniken & Showman (1990: 131)
- Leptogium chloromelum (Sw.) Nyl. - Hambleton (1910: 42), Wolfe (1940: 10)
- Leptogium corticola (Taylor) Tuck. - Taylor (1847: 195 Type in London, Great Britain BM), Jørgensen & James (1983: 117), Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Leptogium cyanescens (Rabenh.) Körb. - Hambleton (1910: 42 as Leptogium tremelloides auct.), Claassen (1912: 546 as Leptogium tremelloides auct.), Wolfe (1940: 10 as Leptogium tremelloides auct.), Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Leptogium lichenoides (L.) Zahlbr. - Wolfe (1940: 10), Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Leptogium milligranum Sierk - Flenniken & Showman (1990: 131)
- Leptogium saturninum (Dicks.) Nyl. - Hambleton (1910: 42), Wolfe (1940: 10)
- Leptorhaphis epidermidis (Ach.) Th. Fr. - Hambleton (1910: 41), Wolfe (1940: 6)
- Lichinella nigritella (Lettau) P. Moreno & Egea - Andreas et al. (2007: 62)
- Lobaria pulmonaria (L.) Hoffm. - Hambleton (1910: 42), Claassen (1912: 548), Wolfe (1940: 11 as Sticta pulmonaria), Flenniken & Showman (1990: 131)
- Lobaria quercizans Michx. - Hambleton (1910: 42), Wolfe (1940: 11 as Sticta quercizans), Flenniken & Showman (1990: 131)
- Loxospora ochrophaea (Tuck.) R. C. Harris - Andreas et al. (2007: 62)
- Melanelixia subargentifera (Nyl.) O. Blanco et al. - Flenniken & Showman (1990: 131 as Melanelia subargentifera)
- Melanelixia subaurifera (Nyl.) O Blanco et al. - Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Melanohalea exasperata (De Not.) O. Blanco et al. - Flenniken & Showman (1990: 131 as Melanelia exasperata)
- Melanohalea olivacea (L.) O. Blanco et al. - Hambleton (1910: 43 as Parmelia olivacea), Claassen (1912: 546 as Parmelia olivacea)
- Melaspilea arthonioides (Fée) Nyl. - Andreas et al. (2007: 62)
- Menegazzia terebrata (Hoffm.) A. Massal. - Hambleton (1910: 43 as Parmelia pertusa), Flenniken & Showman (1990: 131)
- Micarea melaena (Nyl.) Hedl. - Wolfe (1940: 13 as Bilimbia melaena), Andreas et al. (2007: 62)
- Micarea peliocarpa (Anzi) Coppins & R. Sant. - Andreas et al. (2007: 62)
- Micarea prasina Fr. - Andreas et al. (2007: 62)
- Micarea sylvicola (Flot.) Vezda & V. Wirth - Wolfe (1940: 13 as Lecidea sylvicola)
- Mycobilimbia pilularis (Körb.) Hafellner & Türk - Claassen (1912: 544 as Bilimbia sphaeroides), Wolfe (1940: 13 as Bilimbia sphaeroides)
- Mycocalicium albonigrum (Nyl.) Fink - Wolfe (1940: 7)
- Mycocalicium subtile (Pers.) Szatala - Claassen (1912: 544 as Calicium parietinum), Wolfe (1940: 7 as Mycocalicium parietinum), Andreas et al. (2007: 62)
- Mycoporum sparsellum Nyl. - Claassen (1912: 546)
- Myelochroa aurulenta (Tuck.) Elix & Hale - Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Myelochroa galbina (Ach.) Elix & Hale - Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Myelochroa obsessa (Ach.) Elix & Hale - Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Myriolecis dispersa (Pers.) Sliwa, Zhao Xin & Lumbsch - Claassen (1917: 62 as Lecanora dispersa), Andreas et al. (2007: 61 as Lecanora dispersa)
- Nadvornikia sorediata R. C. Harris - Andreas et al. (2007: 62)
- Nephroma helveticum Ach. subsp. helveticum - Hambleton (1910: 43 as Nephromium helveticum), Corrington (1921: 359), Wolfe (1940: 11), Flenniken & Showman (1990: 131)
- Nephroma laevigatum Ach. - Claassen (1912: 546), Wolfe (1940: 11)
- Normandina pulchella (Borrer) Nyl. - Andreas et al. (2007: 62)
- Ochrolechia arborea (Kreyer) Almb. - Andreas et al. (2007: 62)
- Ochrolechia pseudopallescens Brodo - Andreas et al. (2007: 62)
- Ochrolechia tartarea (L.) A. Massal. - Hambleton (1910: 43)
- Ochrolechia yasudae Vain. - Andreas et al. (2007: 62)
- Opegrapha vulgata (Ach.) Nyl. - Hambleton (1910: 41), Claassen (1912: 546), Wolfe (1940: 8)
- Pannaria lurida (Mont.) Nyl. subsp. lurida - Flenniken & Showman (1990: 131)
- Pannaria rubiginosa (Thunb.) Delise - Hambleton (1910: 42), Wolfe (1940: 11), Flenniken & Showman (1990: 131)
- Parmelia saxatilis (L.) Ach. - Hambleton (1910: 43), Claassen (1912: 546), Flenniken & Showman (1990: 131)
- Parmelia squarrosa Hale - Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Parmelia sulcata Taylor - Armitage (1971: 244), Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Parmotrema arnoldii (Du Rietz) Hale - Flenniken & Showman (1990: 131)
- Parmotrema cetratum (Ach.) Hale - Hambleton (1910: 43 as Parmelia cetrata), Armitage (1971: 244 as Parmelia cetrata), Flenniken & Showman (1990: 131)
- Parmotrema crinitum (Ach.) M. Choisy - Hambleton (1910: 43 as Parmelia crinita), Flenniken & Showman (1990: 131)
- Parmotrema despectum Kurok. - Andreas et al. (2007: 62)
- Parmotrema gardneri (C. W. Dodge) Sérus. - Andreas et al. (2007: 62 First record)
- Parmotrema hypotropum (Nyl.) Hale - Flenniken & Showman (1990: 131), Andreas et al. (2007: 62)
- Parmotrema madagascariaceum (Hue) Hale - Flenniken & Showman (1990: 132)
- Parmotrema margaritatum (Hue) Hale - Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Parmotrema submarginale (Michx.) DePriest & B. Hale - Flenniken & Showman (1990: 132 as Parmotrema michauxianum)
- Parmotrema perforatum (Jacq.) A. Massal. - Hambleton (1910: 43 as Parmelia perforata), Claassen (1912: 546 as Parmelia perforata), Flenniken & Showman (1990: 132)
- Parmotrema perlatum (Osbeck) Hale & Ahti - Hambleton (1910: 43 as Parmelia perlata), Claassen (1912: 546 as Parmelia perlata), Flenniken & Showman (1990: 131 as Parmotrema chinense), Andreas et al. (2007: 62 as Parmotrema chinense)
- Parmotrema reticulatum (Taylor) M. Choisy - Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Parmotrema stuppeum (Taylor) Hale - Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Parmotrema subisidiosum (Müll. Arg.) Hale - Showman (1981: 178), Flenniken & Showman (1990: 132)
- Parmotrema subtinctorium (Zahlbr.) Hale - Flenniken & Showman (1990: 132)
- Parmotrema xanthinum (Müll. Arg.) Hale - Showman (1977: 26 as Parmelia xanthina), Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Peltigera aphthosa (L.) Hoffm. - Hambleton (1910: 43), Claassen (1912: 546), Corrington (1921: 356), Wolfe (1940: 11), Flenniken & Showman (1990: 132)
- Peltigera canina (L.) Willd. - Hambleton (1910: 43), Claassen (1912: 547), Corrington (1921: 357), Wolfe (1940: 12), Flenniken & Showman (1990: 132)
- Peltigera collina (Ach.) Schrad. - Hambleton (1910: 43 as Peltigera scutata), Wolfe (1940: 12 as Peltigera scutata)
- Peltigera didactyla (With.) J. R. Laundon - Hambleton (1910: 43 as Peltigera spuria), Claassen (1912: 547 as Peltigera canina var. spuria), Corrington (1921: 356 as Peltigera sorediata), Wolfe (1940: 12 as Peltigera sorediata), Wolfe (1940: 12 as Peltigera spuria), Flenniken & Showman (1990: 132)
- Peltigera elisabethae Gyeln. - Flenniken & Showman (1990: 132)
- Peltigera evansiana Gyeln. - Flenniken & Showman (1990: 132)
- Peltigera horizontalis (L.) Hoffm. - Hambleton (1910: 43), Claassen (1912: 547), Corrington (1921: 358), Wolfe (1940: 12), Flenniken & Showman (1990: 132)
- Peltigera polydactylon (Neck.) Hoffm. - Claassen (1912: 547), Corrington (1921: 358), Wolfe (1940: 12), Flenniken & Showman (1990: 132)
- Peltigera praetextata (Flörke ex Sommerf.) Vain. - Corrington (1921: 356), Wolfe (1940: 12), Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Peltigera rufescens (Weis.) Humb. - Hambleton (1910: 43), Corrington (1921: 357), Wolfe (1940: 12)
- Pertusaria leioplaca DC. - Hambleton (1910: 43), Claassen (1912: 547)
- Pertusaria ostiolata Dibben - Andreas et al. (2007: 63 First record)
- Pertusaria paratuberculifera Dibben - Andreas et al. (2007: 63)
- Pertusaria plittiana Erichsen - Andreas et al. (2007: 63)
- Pertusaria pustulata (Ach.) Duby - Claassen (1912: 547), Andreas et al. (2007: 63)
- Pertusaria subpertusa Brodo - Andreas et al. (2007: 63)
- Phaeophyscia adiastola (Essl.) Essl. - Showman (1981: 178 as Phaeophyscia adiastola), Flenniken & Showman (1990: 132 as Phaeophyscia adiastola), Andreas et al. (2007: 63 as Phaeophyscia adiastola)
- Phaeophyscia ciliata (Hoffm.) Moberg - Hambleton (1910: 43 as Physcia obscura), Claassen (1912: 547 as Physcia obscura), Flenniken & Showman (1990: 132)
- Phaeophyscia endococcina (Körb.) Moberg - Flenniken & Showman (1990: 132)
- Phaeophyscia hirsuta (Mereschk.) Essl. - Flenniken & Showman (1990: 132 as Phaeophyscia cernohorskyi), Andreas et al. (2007: 63)
- Phaeophyscia hirtella Essl. - Flenniken & Showman (1990: 132)
- Phaeophyscia hispidula (Ach.) Moberg - Showman (1981: 178), Flenniken & Showman (1990: 132)
- Phaeophyscia leana (Tuck.) Essl. - Tuckerman (1884: 257 Type), Hambleton (1910: 43 as Physcia leana), Thomson (1963: xx), Skorepa (1984: 257), Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Phaeophyscia orbicularis (Neck.) Moberg - Cooke (1973: 196 as Physcia orbicularis f. ombropulchra unclear !), Flenniken & Showman (1990: 132)
- Phaeophyscia pusilloides (Zahlbr.) Essl. - Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Phaeophyscia rubropulchra (Degel.) Moberg - Claassen (1912: 547 as Physcia obscura endochrysea), Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Phaeophyscia squarrosa Kashiw. - Andreas et al. (2007: 63)
- Phlyctis agelaea (Ach.) Flot. - Andreas et al. (2007: 63)
- Physcia adscendens (Fr.) H. Oliver - Flenniken & Showman (1990: 132)
- Physcia aipolia (Ehrh. ex Humb.) Fürnr. var. aipolia - Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Physcia americana G. K. Meyer - Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Physcia caesia (Hoffm.) Hampe - Showman (1981: 178), Flenniken & Showman (1990: 132)
- Physcia clementei (Sm.) Lynge - Hambleton (1910: 43 as Physcia astroidea)
- Physcia halei J. W. Thomson - Flenniken & Showman (1990: 132)
- Physcia millegrana Degel. - Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Physcia phaea (Tuck.) J. W. Thomson - Showman (1981: 178), Flenniken & Showman (1990: 132)
- Physcia pumilior R. C. Harris - Andreas et al. (2007: 63 First record)
- Physcia stellaris (L.) Nyl. - Hambleton (1910: 43), Claassen (1912: 547), Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Physcia subtilis Degel. - Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Physcia tribacia (Ach.) Nyl. - Hambleton (1910: 43), Claassen (1912: 547)
- Physciella chloantha (Ach.) Essl. - Showman (1981: 178 as Physcia chloantha), Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Physconia detersa (Nyl.) Poelt - Flenniken & Showman (1990: 132), Andreas et al. (2007: 63)
- Physconia leucoleiptes (Tuck.) Essl. - Andreas et al. (2007: 63)
- Physconia muscigena (Ach.) Poelt - Cooke (1973: 196 as Physcia muscigena)
- Placidiopsis minor R. C. Harris - Andreas et al. (2007: 63 First record)
- Placidium arboreum (Schwein. ex E. Michener) Lendemer - Wolfe (1940: 5 as Dermatocarpon arboreum), Flenniken & Showman (1990: 131 as Catapyrenium tuckermanii), Andreas et al. (2007: 63)
- Placidium lachneum (Ach.) B. de Lesd. - Flenniken & Showman (1990: 131 as Catapyrenium lachneum)
- Placidium squamulosum (Ach.) Coppins - Andreas et al. (2007: 63)
- Placopyrenium fuscellum (Turner) Gueidan & Cl. Roux - Claassen (1912: 548 as Verrucaria fuscella), Wolfe (1940: 5 as Verrucaria fuscella)
- Placynthiella hyporhodoa (Th. Fr.) Coppins & P. James - Coppins & James (1984: 244)
- Placynthiella icmalea (Ach.) Coppins & P. James - Andreas et al. (2007: 63)
- Placynthiella uliginosa (Schrad.) Coppins & P. James - Claassen (1912: 546 as Lecidea uliginosa), Wolfe (1940: 12 as Lecidea humosa), Wolfe (1940: 13 as Lecidea uliginosa)
- Placynthium nigrum (Huds.) S. F. Gray - Wolfe (1940: 11), Andreas et al. (2007: 63)
- Platismatia lacunosa (Ach.) W. L. Culb. & C. F. Culb. - Claassen (1912: 544 as Cetraria lacunosa)
- Platismatia tuckermanii (Oakes) W. L. Culb. & C. F. Culb. - Flenniken & Showman (1990: 132)
- Polycauliona polycarpa (Hoffm.) Frödén, Arup, & Søchting - Hambleton (1910: 43 as Xanthoria polycarpa), Claassen (1917: 63 as Teloschistes polycarpus), Flenniken & Showman (1990: 132 as Xanthoria polycarpa)
- Polymeridium quinqueseptatum (Nyl.) R. C. Harris - Claassen (1917: 62 as Arthopyrenia quinqueseptata), Wolfe (1940: 6 as Arthopyrenia quinqueseptata)
- Polysporina simplex (Davies) Vezda - Hambleton (1910: 42 as Biatorella simplex), Andreas et al. (2007: 63)
- Porpidia albocaerulescens (Wulfen) Hertel & Knoph - Claassen (1912: 545 as Lecidea albocoerulescens), Wolfe (1940: 12 as Lecidea albocaerulescens), Andreas et al. (2007: 63)
- Porpidia cinereoatra (Ach.) Hertel & Knoph - Wolfe (1940: 12 as Lecidea cinereoatra)
- Porpidia crustulata (Ach.) Hertel & Knoph - Andreas et al. (2007: 63)
- Porpidia macrocarpa (DC.) Hertel & A. J. Schwab - Claassen (1912: 546 as Lecidea contigua), Claassen (1912: 546 as Lecidea platycarpa), Wolfe (1940: 12 as Lecidea contigua), Wolfe (1940: 13 as Lecidea platycarpa)
- Porpidia speirea (Ach.) Kremp. - Claassen (1912: 546 as Lecidea speirea), Wolfe (1940: 13 as Lecidea speirea)
- Porpidia subsimplex (H. Magn.) Fryday - Andreas et al. (2007: 64)
- Protoblastenia rupestris (Scop.) J. Steiner - Andreas et al. (2007: 64)
- Pseudevernia consocians (Vain.) Hale & W. L. Culb. - Showman (1977: 26), Flenniken & Showman (1990: 132)
- Pseudosagedia cestrensis (Tuck. ex E. Michener) R. C. Harris - Andreas et al. (2007: 64)
- Pseudosagedia guentheri (Flot.) Hafellner & Kalb - Andreas et al. (2007: 64)
- Psora pseudorussellii Timdal - Andreas et al. (2007: 64)
- Psora russellii (Tuck.) Schneid. - Hambleton (1910: 42 as Lecidea russellii), Wolfe (1940: 13)
- Punctelia bolliana (Müll. Arg.) Krog - Flenniken & Showman (1990: 132), Andreas et al. (2007: 64)
- Punctelia borreri (Sm.) Krog - Flenniken & Showman (1990: 132), Andreas et al. (2007: 64)
- Punctelia missouriensis G. Wilh. & Ladd - Andreas et al. (2007: 64)
- Punctelia perreticulata (Räsänen) Wilhelm & Ladd - Flenniken & Showman (1990: 132), Andreas et al. (2007: 64)
- Punctelia rudecta (Ach.) Krog - Hambleton (1910: 43), Claassen (1912: 546 as Parmelia borreri var. rudecta), Cooke (1973: 196 as Parmelia rudecta), Flenniken & Showman (1990: 132), Andreas et al. (2007: 64)
- Pycnothelia papillaria Dufour - Flenniken & Showman (1990: 132)
- Pyrenopsis lecideella Fink ex J. Hedrick - Wolfe (1940: 9)
- Pyrenopsis phaeococca Tuck. - Wolfe (1940: 9)
- Pyrenula laevigata (Pers.) Arnold - Hambleton (1910: 41 as Pyrenula glabrata), Wolfe (1940: 6)
- Pyrenula pseudobufonia (Rehm) R. C. Harris - Andreas et al. (2007: 64)
- Pyxine caesiopruinosa (Nyl.) Imshaug - Cooke (1973: 196), Flenniken & Showman (1990: 132)
- Pyxine sorediata (Ach.) Mont. - Hambleton (1910: 43), Cooke (1973: 196), Flenniken & Showman (1990: 132), Andreas et al. (2007: 64)
- Pyxine subcinerea Stirton - Andreas et al. (2007: 64)
- Racodium rupestre Pers. - Wolfe (1940: 9)
- Ramalina americana Hale - Flenniken & Showman (1990: 132), Andreas et al. (2007: 64)
- Ramalina calicaris (L.) Fr. - Hambleton (1910: 43), Hambleton (1910: 43 as Ramalina calicaris var. canaliculata), Claassen (1912: 548)
- Ramalina celastri (Sprengel) Krog & Swinscow - Flenniken & Showman (1990: 132)
- Ramalina complanata (Sw.) Ach. - Flenniken & Showman (1990: 132)
- Ramalina farinacea (L.) Ach. - Claassen (1912: 548 as Ramalina calicaris var. farinacea), Flenniken & Showman (1990: 132)
- Ramalina fraxinea (L.) Ach. - Hambleton (1910: 43), Claassen (1912: 548 as Ramalina calicaris var. fraxinea),
- Ramalina intermedia (Delise ex Nyl.) Nyl. - Flenniken & Showman (1990: 132)
- Ramalina petrina Bowler & Rundel - Showman (1977: 26), Flenniken & Showman (1990: 132)
- Ramalina pollinaria (Westr.) Ach. - Hambleton (1910: 43), Flenniken & Showman (1990: 132), Andreas et al. (2007: 64)
- Ramalina roesleri (Hochst. ex Schaer.) Hue - Flenniken & Showman (1990: 132)
- Ramboldia cinnabarina (Sommerf.) Kalb, Lumbsch & Elix - Hambleton (1910: 42 as Lecidea cinnabarina), Wolfe (1940: 12 as Lecidea cinnabarina)
- Ramboldia russula Ach. - Hambleton (1910: 42 as Lecidea russula), Wolfe (1940: 13 as Lecidea russula)
- Rhizocarpon hochstetteri (Körb.) Vain. - Andreas et al. (2007: 64)
- Rhizocarpon infernulum (Nyl.) Lynge - Andreas et al. (2007: 64)
- Rhizocarpon obscuratum (Ach.) A. Massal. - Andreas et al. (2007: 64)
- Rhizocarpon petraeum (Wulfen) A. Massal. - Hambleton (1910: 42), Claassen (1912: 548)
- Ricasolia amplissima (Scop.) De Not. - Hambleton (1910: 42 as Lobaria amplissima), Claassen (1912: 548 as Lobaria amplissima), Wolfe (1940: 11 as Sticta amplissima)
- Rimularia badioatra (Kremp.) Hertel & Rambold - Andreas et al. (2007: 64)
- Rinodina bullata Sheard & Lendemer - Sheard et al. (2012: 136 Type in New York, USA NY)
- Rinodina maculans Müll. Arg. - Andreas et al. (2007: 64)
- Rinodina oxydata (A. Massal.) A. Massal. - Andreas et al. (2007: 64)
- Rinodina tephraspis (Tuck.) Herre - Andreas et al. (2007: 64)
- Ropalospora chlorantha (Tuck.) S. Ekman - Hambleton (1910: 42 as Bacidia chlorantha)
- Ropalospora viridis (Stirt.) Tønsberg - Andreas et al. (2007: 64)
- Rusavskia elegans (Link) S. Y. Kondr. & Kärnefelt - Flenniken & Showman (1990: 132 as Xanthoria elegans)
- Santessoniella crossophylla (Tuck.) P. M. Jørg. - Wolfe (1940: 11 as Parmeliella crossophylla)
- Sarcogyne hypophaea (Nyl.) Arnold - Andreas et al. (2007: 64 as Sarcogyne privigna)
- Sarcogyne regularis Körb. - Andreas et al. (2007: 64)
- Sclerophora nivea (Hoffm.) Tibell - Claassen (1912: 545 as Coniocybe pallida), Wolfe (1940: 7 as Coniocybe pallida)
- Scoliciosporum chlorococcum (Stenh.) Vezda - Andreas et al. (2007: 64)
- Scoliciosporum umbrinum (Ach.) Arnold - Claassen (1912: 544 as Bacidia umbrina), Andreas et al. (2007: 64)
- Scytinium dactylinum (Tuck.) Otálora, P. M. Jørg. & Wedin - Flenniken & Showman (1990: 131 as Leptogium dactylinum), Andreas et al. (2007: 62 as Leptogium dactylinum)
- Scytinium fragrans (Sm.) Ach. - Wolfe (1940: 10 as Collema microphyllum), Flenniken & Showman (1990: 131 as Collema fragrans)
- Scytinium juniperinum (Tuck.) Otálora, P. M. Jørg. & Wedin - Wolfe (1940: 10 as Leptogium juniperinum), Wolfe (1940: 10 as Leptogium plectenchymum), Flenniken & Showman (1990: 131 as Leptogium juniperinum), Andreas et al. (2007: 62 as Leptogium juniperinum)
- Scytinium plicatile (Ach.) Otálora, P. M. Jørg. & Wedin - Wolfe (1940: 10 as Collema plicatile)
- Scytinium subtile (Schrader) Otálora, P. M. Jørg. & Wedin - Wolfe (1940: 10 as Leptogium perminutum), Flenniken & Showman (1990: 131 as Leptogium minutissimum)
- Scytinium tenuissimum (Dicks.) Otálora, P. M. Jørg. & Wedin - Flenniken & Showman (1990: 131 as Leptogium tenuissimum)
- Segestria lectissima Fr. - Andreas et al. (2007: 64)
- Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén - Andreas et al. (2007: 59 as Caloplaca subsoluta)
- Staurothele fissa (Taylor) Zwackh - Wolfe (1940: 5 as Staurothele umbrina)
- Steinia geophana (Nyl.) Stein - Andreas et al. (2007: 64)
- Stereocaulon dactylophyllum Flörke - Claassen (1912: 548 as Stereocaulon coralloides)
- Stereocaulon saxatile H. Magn. - Flenniken & Showman (1990: 132)
- Stereocaulon tomentosum Fr. - Flenniken & Showman (1990: 132)
- Stictis urceolatum (Ach.) Gilenstam - Claassen (1912: 545 as Conotrema urceolatum), Wolfe (1940: 9 as Conotrema urceolatum)
- Strangospora moriformis (Ach.) Stein - Claassen (1917: 62 as Biatorella moriformis)
- Teloschistes chrysophthalmus (L.) Th. Fr. - Claassen (1912: 548), Flenniken & Showman (1990: 132)
- Thelenella brasiliensis (Müll. Arg.) Vain. - Andreas et al. (2007: 64 First record)
- Thelenella muscorum (Fr.) Vain. var. muscorum - Andreas et al. (2007: 64)
- Thelidium decipiens (Nyl.) Kremp. - Andreas et al. (2007: 64)
- Thelidium fontigenum A. Massal. - Wolfe (1940: 5 Thelidium microbolum)
- Thelidium minutulum Körb. - Andreas et al. (2007: 64)
- Thelocarpon laureri (Flot.) Nyl. - Andreas et al. (2007: 64 First record)
- Thyrea confusa Henssen - Wolfe (1940: 9 erroneously as Thyrea pulvinata)
- Trapelia glebulosa (Sm.) J. R. Laundon - Andreas et al. (2007: 64)
- Trapelia placodioides Coppins & P. James - Andreas et al. (2007: 64 First record)
- Trapeliopsis flexuosa (Fr.) Coppins & P. James - Wolfe (1940: 12 as Lecidea flexuosa), Andreas et al. (2007: 65)
- Trapeliopsis granulosa (Flörke) Coppins & P. James - Andreas et al. (2007: 65)
- Trapeliopsis viridescens (Schrad.) Coppins & P. James - Claassen (1912: 546 as Lecidea viridescens), Wolfe (1940: 13 as Lecidea viridescens)
- Trypethelium virens Tuck. ex E. Michener - Hambleton (1910: 41), Claassen (1912: 548), Wolfe (1940: 6), Andreas et al. (2007: 65)
- Tuckermanella fendleri (Nyl.) Essl. - Flenniken & Showman (1990: 132 as Tuckermannopsis fendleri), Andreas et al. (2007: 65 as Tuckermanella fendleri)
- Tuckermannopsis americana (Sprengel) Hale - Flenniken & Showman (1990: 132), Andreas et al. (2007: 65)
- Tuckermannopsis ciliaris (Ach.) Gyeln. - Hambleton (1910: 43 as Nephromopsis ciliaris), Claassen (1912: 544 as Cetraria ciliaris), Flenniken & Showman (1990: 132), Andreas et al. (2007: 65)
- Umbilicaria mammulata (Ach.) Tuck. - Hambleton (1910: 42 as Gyrophora dillenii), Flenniken & Showman (1990: 132), Andreas et al. (2007: 65)
- Umbilicaria muehlenbergii (Ach.) Tuck. - Flenniken & Showman (1990: 132)
- Umbilicaria vellea (L.) Ach. - Flenniken & Showman (1990: 132)
- Usnea angulata Ach. - Hambleton (1910: 43), Flenniken & Showman (1990: 132)
- Usnea ceratina Ach. - Hambleton (1910: 43), Flenniken & Showman (1990: 132)
- Usnea florida (L.) Weber ex F. H. Wigg.- Hambleton (1910: 43)
- Usnea hirta (L.) Weber ex F. H. Wigg. - Claassen (1912: 548 as Usnea barbata var. hirta)
- Usnea longissima Ach. - Flenniken & Showman (1990: 132)
- Usnea mutabilis Stirt. - Flenniken & Showman (1990: 132), Andreas et al. (2007: 65)
- Usnea strigosa (Ach.) A. Eaton subsp. strigosa - Flenniken & Showman (1990: 132), Andreas et al. (2007: 65)
- Usnea subscabrosa Nyl. ex Motyka - Andreas et al. (2007: 65)
- Usnea subfloridana Stirt. - Flenniken & Showman (1990: 132)
- Usnocetraria oakesiana (Tuck.) M. J. Lai & C. J. Wei - Flenniken & Showman (1990: 132 as Tuckermannopsis oakesiana)
- Vahliella leucophaea (Vahl) P. M. Jörg. - Flenniken & Showman (1990: 131 as Pannaria leucophaea)
- Varicellaria velata (Turner) Schmitt & Lumbsch - Hambleton (1910: 43 as Pertusaria velata), Claassen (1912: 547 as Pertusaria velata), Andreas et al. (2007: 63 as Pertusaria velata)
- Variolaria multipunctoides (Dibben) Lendemer, Hodkinson & R. C. Harris - Andreas et al. (2007: 63 as Pertusaria multipunctoides)
- Variolaria pustulata (Brodo & W. L. Culb.) Lendemer, Hodkinson & R. C. Harris - Andreas et al. (2007: 62 as Loxospora pustulata)
- Verrucaria calkinsiana Servít - Andreas et al. (2007: 65)
- Verrucaria muralis Ach. - Hambleton (1910: 41), Claassen (1912: 548), Wolfe (1940: 5 as Verrucaria rupestris), Andreas et al. (2007: 65)
- Verrucaria nigrescens Pers. - Hambleton (1910: 41), Claassen (1912: 548), Wolfe (1940: 5)
- Verrucaria rupestris Schrad. - Hambleton (1910: 41)
- Verrucaria viridula (Schrad.) Ach. - Claassen (1912: 548), Wolfe (1940: 5)
- Vezdaea leprosa (P. James) Vezda - Andreas et al. (2007: 65)
- Vulpicida viridis (Schwein. in Halsey) J.-E. Mattsson & M. J. Lai - Showman (1981: 178 as Cetraria viridis), Flenniken & Showman (1990: 132 as Tuckermannopsis viridis)
- Xanthocarpia feracissima (H. Magn.) Frödén, Arup & Søchting - Andreas et al. (2007: 59 as Caloplaca feracissima)
- Xanthomendoza fallax (Hepp in Arnold) Søchting, Kärnefelt & S. Y. Kondr. - Flenniken & Showman (1990: 132 as Xanthoria fallax)
- Xanthomendoza weberi (S. Kondr. & Kärnefelt) L. Lindblom - Andreas et al. (2007: 65)
- Xanthoparmelia conspersa (Ehrh. ex Ach.) Hale - Claassen (1912: 546), Flenniken & Showman (1990: 132), Andreas et al. (2007: 65)
- Xanthoparmelia cumberlandia (Gyeln.) Hale - Showman (1977: 26 as Parmelia cumberlandia), Flenniken & Showman (1990: 132)
- Xanthoparmelia hypomelaena (Hale) Hale - Showman (1981: 178), Flenniken & Showman (1990: 132)
- Xanthoparmelia plittii (Gyeln. ex D. Dietr.) Hale - Flenniken & Showman (1990: 132), Andreas et al. (2007: 65)
- Xanthoparmelia subramigera (Gyeln.) Hale - Flenniken & Showman (1990: 132)
- Xanthoria parietina (L.) Th. Fr. - Hambleton (1910: 43)
- Xylopsora friesii (Ach.) Bendiksby & Timdal - Andreas et al. (2007: 61 as Hypocenomyce friesii)
- Zwackhia viridis (Pers. ex Ach.) Poetsch & Schied. - Claassen (1912: 546 as Opegrapha viridis), Wolfe (1940: 8 as Opegrapha viridis)