Checklist of lichens of New York - State (USA)
Version 31 December 2017
- Absconditella lignicola Vezda & Pisút - Harris (2004: 56), Harris (2006: 53)
- Absconditella sphagnorum Vezda & Poelt - Harris (2004: 56)
- Acarospora cervina A. Massal. - Harris (2004: 56)
- Acarospora fuscata (Schrad.) Arnold - Brodo (1968: 205), Thomson (1997: 24), Harris (2004: 56)
- Acarospora glaucocarpa (Wahlenb.) Körb. - Thomson (1997: 25), Harris (2004: 56)
- Acarospora moenium (Vain.) Räsänen - Harris (2004: 56)
- Acarospora oligospora (Nyl.) Arnold - Harris (2004: 56)
- Acarospora sinopica (Wahlenb.) Körb. - Harris (2004: 56)
- Acarospora veronensis A. Massal. - Harris (2004: 56)
- Acrocordia megalospora (Fink) R. C. Harris - Harris (2004: 56)
- Adelolecia kolaensis (Nyl.) Hertel & Rambold - Lowe (1939: as Lecidea conferenda), Thomson (1997:338 as Lecidea conferenda), Harris (2004: 56)
- Agonimia gelatinosa (Ach.) M. Brand & Diederich - Harris (2004: 56)
- Ahtiana aurescens (Tuck.) A. Thell & Randlane - Harris (2004: 56)
- Alectoria fallacina Motyka - Harris (2004: 56)
- Alectoria sarmentosa (Ach.) Ach. - Hauck et al. (2005: 5)
- Alyxoria varia (Pers.) Ertz & Tehler - Harris (2004: 64 as Opegrapha varia)
- Amandinea dakotensis (H. Magn.) P. May & Sheard - Harris (2004: 56)
- Amandinea milliaria (Tuck.) P. May & Sheard - Brodo (1968: 256 as Rinodina milliaria), Harris (2004: 56)
- Amandinea polyspora (Will. in Tuck.) E. Lay & P. May - Brodo (1968: 254 as Buellia polyspora), Thomson (1997: 137 as Buellia polyspora), Harris (2004: 56)
- Amandinea punctata (Hoffm.) Coppins & Scheid. - Brodo (1968: 238 sub Buellia punctata), Thomson (1997: 138 as Buellia punctata), Harris (2004: 56)
- Amygdalaria elegantior (H. Magn.) Hertel & Brodo - Thomson (1997: 41)
- Amygdalaria panaeola (Ach.) Hertel & Brodo - Thomson (1997: 42), Harris (2004: 56)
- Anaptychia crinalis (Schaer.) Vezda - Harris (2004: 56 erroneously as Anaptychia setifera)
- Anaptychia palmulata (Michx.) Vain. - Brodo (1968: 262), Harris (2004: 56)
- Anisomeridium carinthiacum (J. Steiner) R. C. Harris - Harris (2004: 56)
- Anisomeridium polypori (Ellis & Everh.) M. E Barr - Harris (2004: 56), Harris (2006: 53)
- Anzia colpodes (Ach.) Stizenb. - Brodo (1968: 240), Harris (2004: 56)
- Arctoparmelia centrifuga (L.) Hale - Thomson (1984: 476 as Xanthoparmelia centrifuga), Harris (2004: 56)
- Arctoparmelia incurva (Pers.) Hale - Thomson (1984: 478 as Xanthoparmelia incurva), Harris (2004: 56)
- Arctoparmelia subcentrifuga (Oxner) Hale - Harris (2004: 56)
- Arthonia atra (Pers.) A. Schneider - Harris (2004: 64 as Opegrapha atra)
- Arthonia byssacea (Weigel) Almq. - Harris (2004: 56)
- Arthonia didyma Körb. - Harris (2004: 56)
- Arthonia diffusella Fink ex J. Hedrick - Harris (2004: 56)
- Arthonia helvola (Nyl.) Nyl. - Harris (2004: 56), Harris (2006: 53)
- Arthonia lapidicola (Taylor) Branth & Rostr. - Harris (2004: 56)
- Arthonia mediella Nyl. - Brodo (1968: 150), Harris (2004: 56)
- Arthonia polymorpha Ach. - Brodo (1968: 150), Harris (2004: 56)
- Arthonia punctiformis Ach. - Brodo (1968: 150), Harris (2004: 56)
- Arthonia radiata (Pers.) Ach. - Harris (2004: 56)
- Arthonia siderea Degel. - Brodo (1968: 151), Harris (2004: 56)
- Arthonia spadicea Leight. - Harris (2004: 56)
- Arthonia susa R. C. Harris & Lendemer - Brodo (1968: 151 erroneously as Arthothelium taediosum), Harris (2004: 56 erroneously as Arthothelium taediosum)
- Arthothelium spectabile A. Massal. - Harris (2004: 56)
- Arthopyrenia cerasi (Schrad.) A. Massal. - Brodo (1968: 146)
- Arthopyrenia cinereopruinosa (Schaer.) A. Massal. - Brodo (1968: 146 as Arthopyrenia pinicola)
- Arthrorhaphis citrinella (Ach.) Poelt - Harris (2004: 56)
- Arthrosporum populorum A. Massal. - Harris (2004: 56)
- Aspicilia cinerea (L.) Körb. - Brodo (1968: 216 as Lecanora cinerea), Thomson (1997: 68), Harris (2004: 56)
- Aspicilia laevata (Ach.) Arnold - Harris (2004: 56)
- Aspicilia verrucigera Hue - Harris (2004: 56)
- Athallia holocarpa (Hoffm.) Arup, Frödén & Søchting - Thomson (1997: 164 as Caloplaca holocarpa), Harris (2004: 57 as Caloplaca holocarpa)
- Athallia pyracea (Ach.) Arup, Frödén & Søchting - Brodo (1968: 250 as Caloplaca pyracea)
- Bacidia arceutina (Ach.) Arnold - Ekman (1996: ), Harris (2004: 56)
- Bacidia coprodes (Körb.) Lettau - Thomson (1997: 112 erroneously as Bacidia trachona)
- Bacidia laurocerasi (Delise ex Duby) Zahlbr. subsp. laurocerasi - Brodo (1968: 172 as Bacidia atrogrisea)
- Bacidia bagliettoana (A. Massal. & De Not.) Jatta - Harris (2004: 56)
- Bacidia circumspecta (Nyl. ex Vain.) Malme - Harris (2004: 56)
- Bacidia coprodes (Körb.) Lettau - Harris (2004: 57 as Bacidia granosa)
- Bacidia laurocerasi (Delise ex Duby) Zahlbr. subsp. laurocerasi - Harris (2004: 57)
- Bacidia polychroa (Th. Fr.) Körb. - Harris (2004: 57)
- Bacidia rubella (Hoffm.) A. Massal. - Harris (2004: 57), Harris (2006: 53)
- Bacidia schweinitzii (Tuck. in W. Darl.) Schneid. - Brodo (1968: 175), Harris (2004: 57), Harris (2006: 53)
- Bacidia suffusa (Fr.) A. Schneid. - Harris (2004: 57)
- Bacidina chloroticula (Nyl.) Poelt & Vezda - Harris (2004: 57)
- Bacidina delicata (Larbal. ex Leight.) V. Wirth & Vezda - Harris (2004: 57)
- Bacidina egenula (Nyl.) Vezda - Harris (2004: 57)
- Bacidina inundata (Fr.) Vezda - Brodo (1968: 175 as Bacidia inundata), Harris (2004: 57)
- Baculifera curtisii (Tuck.) Marbach - Brodo (1968: 253 as Buellia curtisii), Harris (2004: 57 as Buellia curtisii)
- Baeomyces rufus (Huds.) Rebent. - Thomson (1984: 52), Harris (2004: 57)
- Bagliettoa baldensis (A. Massal.) Vezda - Harris (2004: 69 as Verrucaria baldensis)
- Bagliettoa calciseda (DC.) Gueidan & Cl. Roux - Harris (2004: 69 as Verrucaria calciseda)
- Bellemerea cinereorufescens (Ach.) Clauzade & Roux - Harris (2004: 57)
- Biatora helvola Körb. ex Hellbom - Thomson (1997: 349 as Lecidea helvola)
- Biatora longispora (Degel.) Lendemer & Printzen - Harris (2004: 57), Harris (2006: 53)
- Biatora pontica Printzen & Tønsberg - Harris (2004: 57)
- Biatora printzenii Tønsberg - Harris (2004: 57)
- Biatora toensbergii Holien & Printzen - Harris (2004: 57)
- Biatora vernalis (L.) Fries - Brodo (1968: 171 as Lecidea vernalis), Thomson (1997: 389 as Lecidea vernalis), Harris (2004: 57)
- Bilimbia sabuletorum (Schreb.) Arnold - Thomson (1997: 422 as Mycobilimbia sabuletorum), Harris (2004: 64 as Myxobilimbia sabuletorum), Harris (2006: 53)
- Botryolepraria lesdainii (Hue) Canals et al. - Harris (2004: 57)
- Brodoa oroarctica (Krog) Goward - Thomson (1984: 239 as Hypogymnia oroarctica)
- Bryobilimbia ahlesii (Körb.) Fryday, Printzen & S. Ekman var. ahlesii - Harris (2004: 62 as Lecidea ahlesii), Harris (2004: 62 as Lecidea delincta)
- Bryobilimbia ahlesii (Körb.) Fryday, Printzen & S. Ekman var. nemoralis (J. Lowe) Fryday, Printzen & S. Ekman - Lowe (xx: xx as Lecidea nemoralis Type in FH), Harris (2004: 62 as Lecidea nemoralis)
- Bryobilimbia diapensiae (Th. Fr.) Fryday, Printzen & S. Ekman - Harris (2004: 62 as Lecidea diapensiae)
- Bryobilimbia hypnorum (Lib.) Fryday, Printzen & S. Ekman - Harris (2004: 62 as Lecidea hypnorum)
- Bryoria capillaris (Ach.) Brodo & D. Hawksw. - Hauck et al. (2005: 5)
- Bryoria furcellata (Fr.) Brodo & D. Hawksw. - Brodo (1968: 242 as Alectoria nidulifera), Harris (2004: 57), Hauck et al. (2005: 5)
- Bryoria fuscescens (Gyeln.) Brodo & D. Hawksw. - Harris (2004: 57), Hauck et al. (2005: 5)
- Bryoria glabra (Motyka) Brodo & D. Hawksw. - Brodo (1968: 241 as Alectoria glabra)
- Bryoria implexa (Hoffm.) Brodo & D. Hawksw. - Harris (2004: 57)
- Bryoria nadvornikiana (Gyeln.) Brodo & D. Hawksw. - Harris (2004: 57), Hauck et al. (2005: 5)
- Bryoria subcana (Stizenb.) Brodo & D. Hawksw. - Schmull et al. (2002: 87), Harris (2004: 57), Hauck et al. (2005: 5)
- Bryoria trichodes (Michx.) Brodo & D. Hawksw. subsp. trichodes - Harris (2004: 57)
- Buellia arnoldii Servít - Harris (2004: 60 as Hafellia arnoldii)
- Buellia badia Tuck. - Brodo (1968: 255 as Buellia turgescens), Harris (2004: 57 as Buellia turgescens)
- Buellia disciformis (Fr.) Muss. - Thomson (1997: 129), Harris (2004: 60 as Hafellia disciformis)
- Buellia erubescens Arnold - Brodo (1968: 255 as Buellia stillingiana), Harris (2004: 57 as Buellia stillingiana)
- Buellia griseovirens (Sm.) Almborn - Harris (2004: 57)
- Buellia schaereri De Not. - Harris (2004: 57)
- Buellia spuria (Schaer.) Anzi - Harris (2004: 57)
- Buellia stigmatea Tuck. - Brodo (1968: 255)
- Caeruleum heppii (Nägeli ex Körb.) K. Knudsen & B. Abbott - Harris (2004: 64 as Myriospora immersa)
- Calicium glaucellum Ach. - Harris (2004: 57), Hauck et al. (2005: 5)
- Calicium parvum Tibell - Harris (2004: 57)
- Calicium quercinum Pers. - Harris (2004: 57)
- Calicium salicinum Pers. - Harris (2004: 57)
- Calicium trabinellum (Ach.) Ach. - Harris (2004: 57)
- Calogaya lobulata (Flörke) Arup, Frödén & Søchting - Harris (2004: 57 as Caloplaca lobulata)
- Caloplaca atroalba (Nyl.) Zahlbr. - Harris (2004: 61 as Lecania perproxima)
- Caloplaca camptidia (Tuck.) Zahlbr. - Brodo (1968: 248), Wetmore (1994: ), Harris (2004: 57)
- Caloplaca cerina (Ehrh. in Hoff.) Th. Fr. - Brodo (1968: 248), Thomson (1997: 154), Harris (2004: 57)
- Caloplaca citrina (Hoffm.) Th. Fr. - Brodo (1968: 249), Thomson (1997: 155), Harris (2004: 57)
- Caloplaca obscurella (Körb.) Th. Fr. - Wetmore (1994: ), Harris (2004: 57)
- Caloplaca pollinii (A. Massal.) Jatta - Harris (2004: 57)
- Caloplaca saxicola (Hoffm.) Nordin - Harris (2004: 57)
- Caloplaca sideritis (Tuck.) Zahlbr. - Harris (2004: 57)
- Caloplaca stillicidiorum (Vahl) Lynge - Harris (2004: 57)
- Candelaria concolor (Dicks.) Stein - Brodo (1968: 225), Brodo (1968: 225 as Candelaria concolor var. effusa), Harris (2004: 57)
- Candelaria fibrosa (Fr.) Müll. Arg. - Harris (2004: 58)
- Candelariella aurella (Hoffm.) Zahlbr. - Brodo (1968: 224), Thomson (1997: 182), Harris (2004: 58)
- Candelariella efflorescens Harris & Buck - Harris (1987: 4), Thomson (1997: 185), Harris (2004: 58)
- Candelariella vitellina (Hoffm.) Müll. Arg. - Brodo (1968: 225), Thomson (1997: 189), Harris (2004: 58)
- Candelariella xanthostigma (Ach.) Lettau - Harris (2004: 58), Harris (2006: 53)
- Carbonicola anthracophila (Nyl.) Bendiksby & Timdal - Brodo (1968: 166 as Lecidea anthracophila), Harris (2004: 61 as Hypocenomyce anthracophila)
- Catillaria chalybeia (Borrer) A. Massal. - Thomson (1997: 196)
- Catillaria lenticularis (Ach.) Ach. - Harris (2004: 58)
- Catillaria nigroclavata (Nyl.) Schuler - Brodo (1968: 171 as C. glauconigrans), Thomson (1997: 197 as Catillaria glauconigra), Harris (2004: 58)
- Cecidonia xenophana (Körb.) Triebel & Rambold - Lowe (1939: Type as Lecidea columnata), Harris (2004: 62 as Lecidea columnata)
- Cetraria aculeata (Schreb.) Fr. - Thomson (1984: 198 sub Cornicularia aculeata)
- Cetraria arenaria Kärnefelt - Harris (2004: 58)
- Cetraria ericetorum Opiz subsp. ericetorum - Thomson (1984: 79)
- Cetraria ericetorum Opiz subsp. reticulata (Räsänen) Kärnefelt - Harris (2004: 58)
- Cetraria islandica (L.) Ach. - Brodo (1968: 239), Thomson (1984: 84)
- Cetraria laevigata Rass. - Thomson (1984: 88), Harris (2004: 58)
- Cetraria muricata (Ach.) Eckfeldt - Harris (2004: 58)
- Cetrariella commixta(Nyl.) A. Thell & Kärnefelt - Thomson (1984: 75 as Cetraria commixta)
- Cetrariella delisei (Schaer.) Kärnefelt & A. Thell - Thomson (1984: 77 as Cetraria delisei), Harris (2004: 58)
- Cetrelia cetrarioides (Duby) W. L. Culb. & C. F. Culb. - Harris (2004: 58)
- Cetrelia chicitae (W. L. Culb.) W. L. Culb. & C. F. Culb. - Harris (2004: 58)
- Cetrelia olivetorum (Nyl.) W. L. Culb. & C. F. Culb. - Brodo (1968: 231 sub Parmelia olivetorum), Harris (2004: 58)
- Chaenotheca brunneola (Ach.) Müll. Arg. - Harris (2004: 58)
- Chaenotheca chrysocephala (Ach.) Th. Fr. - Harris (2004: 58), Hauck et al. (2005: 5)
- Chaenotheca ferruginea (Turner ex Sm.) Mig. - Harris (2004: 58), Hauck et al. (2005: 5)
- Chaenotheca furfuracea (L.) Tibell - Thomson (1997: 210 as Coniocybe furfuracea), Harris (2004: 58)
- Chaenotheca hygrophila Tibell - Harris (2004: 58)
- Chaenotheca laevigata Nádv. - Harris (2004: 58)
- Chaenotheca phaeocephala (Turn.) Th. Fr. - Brodo (1968: 153)
- Chaenotheca stemonea (Ach.) Müll. Arg. - Harris (2004: 58)
- Chaenotheca trichialis (Ach.) Th. Fr. - Harris (2004: 58)
- Chaenotheca xyloxena Nádv. - Harris (2004: 58)
- Chrismofulvea dialyta (Nyl.) Tuck. - Brodo (1968: 253 as Buellia dialyta), Harris (2004: 57 as Buellia dialyta)
- Chrysothrix caesia (Flot.) Ertz & Tehler - Brodo (1968: 150 as Arthonia caesia), Harris (2004: 56 as Arthonia caesia), Hauck et al. (2005: 5 as Arthonia caesia), Harris (2006: 53 as Arthonia caesia)
- Chrysothrix candelaris (L.) J. R. Laundon - Harris (2004: 58)
- Circinaria caesiocinerea (Nyl. ex Malbr.) A. Nordin, Savic & Tibell - Brodo (1968: 213 as Lecanora caesiocinerea), Harris (2004: 56 as Aspicilia caesiocinerea)
- Cladonia acuminans R.C. Harris - Harris (2009: xxx Type in New York, USA NY)
- Cladonia acuminata (Ach.) Norrlin - Harris (2004: 58), Harris (2004: 58 as Cladonia acuminata var. norrlinii)
- Cladonia amaurocraea (Flörke) Schaer. - Thomson (1984: 107), Harris (2004: 58)
- Cladonia apodocarpa Robb. - Brodo (1968: 192), Harris (2004: 58)
- Cladonia arbuscula (Wallr.) Rabenh. - Brodo (1968: 201), Thomson (1984: 110), Harris (2004: 58)
- Cladonia atlantica Evans - Brodo (1968: 193), Harris (2004: 58)
- Cladonia beaumontii (Tuck.) Vain. - Brodo (1968: 194), Harris (2004: 58)
- Cladonia borealis Stenroos - Harris (2004: 58)
- Cladonia boryi Tuck. - Brodo (1968: 197), Harris (2004: 58)
- Cladonia botrytes (Hagen) Willd. - Harris (2004: 58)
- Cladonia brevis Sandst. - Brodo (1968: 185), Harris (2004: 58)
- Cladonia caespiticia (Pers.) Flörke - Brodo (1968: 183), Harris (2004: 58)
- Cladonia cariosa (Ach.) Spreng. - Brodo (1968: 184), Harris (2004: 58)
- Cladonia carneola (Fr.) Fr. - Brodo (1968: 182), Harris (2004: 58)
- Cladonia caroliniana Tuck. - Harris (2004: 58)
- Cladonia cenotea (Ach.) Schaer. - Harris (2004: 58)
- Cladonia chlorophaea (Flörke in Sommerf) Sprengel - Brodo (1968: 187), Thomson (1984: 119), Harris (1987: 4), Harris (2004: 58)
- Cladonia coniocraea (Flörke) Sprengel em. Sandst. - Brodo (1968: 189), Thomson (1984: 122), Harris (2004: 58), Hauck et al. (2005: 5)
- Cladonia conista (Ach.) Robb. - Brodo (1968: 189), Harris (2004: 58)
- Cladonia cornuta (L.) Hoffm. subsp. cornuta - Thomson (1984: 124), Harris (2004: 58)
- Cladonia crispata (Ach.) Flot. var. crispata - Harris (2004: 58)
- Cladonia cristatella Tuck. - Brodo (1968: 181), Harris (2004: 58)
- Cladonia cryptochlorophaea Asah. - Thomson (1984: 126), Harris (2004: 58)
- Cladonia cyanipes (Somm.) Nyl. - Thomson (1984: 127), Harris (2004: 58)
- Cladonia cylindrica (Evans) Evans - Brodo (1968: 190), Harris (2004: 58)
- Cladonia dahliana Kristinsson - Harris (2004: 59)
- Cladonia decorticata (Flörke) Sprengel - Harris (2004: 59)
- Cladonia deformis (L.) Hoffm. - Brodo (1968: 182), Thomson (1984: 129), Harris (2004: 59)
- Cladonia didyma (Fée) Vain. - Brodo (1968: 181), Harris (2004: 59)
- Cladonia didyma (Fée) Vain. var. vulcanica (Zoll. & Moritzi) Vain. - Brodo (1968: 180 as Cladonia vulcanica) in Ahti (1993: 101) als C. vulcanica
- Cladonia digitata (L.) Hoffm. - Harris (2004: 59), Hauck et al. (2005: 5)
- Cladonia dimorphoclada Robbins - Brodo (1968: 197 erroneously as Cladonia caroliniana), Harris (2004: 59)
- Cladonia evansii Abbayes - Ahti (1961: 25), Brodo (1968: 198), Harris (2004: 59)
- Cladonia farinacea (Vain.) Evans - Brodo (1968: 195), Harris (2004: 59)
- Cladonia fimbriata (L.) Fr. - Brodo (1968: 188), Thomson (1984: 133), Harris (2004: 59), Hauck et al. (2005: 5)
- Cladonia floerkeana (Fr.) Flörke - Brodo (1968: 179), Harris (2004: 59)
- Cladonia floridana Vain. - Brodo (1968: 194), Harris (2004: 59)
- Cladonia furcata (Huds.) Schrad. - Brodo (1968: 196), Harris (2004: 59), Harris (2006: 53)
- Cladonia glauca Flörke - Harris (2004: 59)
- Cladonia gracilis (L.) Willd. subsp. elongata (Wulfen) Vain. - Harris (2004: 59)
- Cladonia gracilis (L.) Willd. subsp. gracilis - Thomson (1984: 137 as Cladonia gracilis var. gracilis), Harris (2004: 59 as Cladonia gracilis var. gracilis)
- Cladonia gracilis (L.) Willd. subsp. turbinata (Ach.) Ahti - Thomson (1984: 136), Harris (2004: 59)
- Cladonia grayi Merrl. - Thomson (1984: 139), Harris (2004: 59)
- Cladonia incrassata Flörke - Brodo (1968: 181), Harris (2004: 59)
- Cladonia macilenta Hoffm. - Brodo (1968: 180), Brodo (1968: 180 as Cladonia bacillaris), Thomson (1984: 111 as Cladonia bacillaris), Harris (2004: 59 incl. Cladonia bacillaris), Hauck et al. (2005: 5)
- Cladonia macrophylla (Schaer.) Stenh. - Thomson (1984: 141), Harris (2004: 59)
- Cladonia mateocyatha Robbins - Brodo (1968: 186), Harris (2004: 59)
- Cladonia maxima (Asahina) Ahti - Thomson (1984: 145), Harris (2004: 59)
- Cladonia merochlorophaea Asahina - Thomson (1984: 143), Harris (2004: 59)
- Cladonia mitis Sandst. - Brodo (1968: 203), Harris (2004: 59)
- Cladonia multiformis G. Merr. - Brodo (1968: 194), Harris (2004: 59)
- Cladonia ochrochlora Flörke - Harris (2004: 59)
- Cladonia parasitica (Hoffm.) Hoffm. - Brodo (1968: 192), Harris (2004: 59)
- Cladonia petrophila R. C. Harris - Harris (1992: 329 First record), Harris (2004: 59)
- Cladonia peziziformis (With.) J. R. Laundon - Brodo (1968: 184 as Cladonia capitata), Harris (2004: 59)
- Cladonia phyllophora Ehrh. ex Hoffm. - Harris (2004: 59)
- Cladonia piedmontensis G. Merr. - Brodo (1968: 183), Harris (2004: 59)
- Cladonia pleurota (Flörke) Schaer. - Brodo (1968: 182), Thomson (1984: 154), Harris (2004: 59)
- Cladonia pocillum (Ach.) Grogn. - Harris (2004: 59)
- Cladonia pyxidata (L.) Hoffm. - Brodo (1968: 187), Thomson (1984: 158), Harris (2004: 59), Hauck et al. (2005: 5), Harris (2006: 53)
- Cladonia ramulosa (With.) J. R. Laundon - Brodo (1968: 191 as Cladonia pityrea), Harris (2004: 59)
- Cladonia rangiferina (L.) G. Web. in Wigg. - Brodo (1968: 201), Thomson (1984: 159), Harris (2004: 59), Harris (2006: 53)
- Cladonia rappii A. Evans - Brodo (1968: 186 erroneously as Cladonia calycantha), Harris (2004: 59 as Cladonia rappii var. exilior)
- Cladonia rei Schaer. - Brodo (1968: 190 as Cladonia nemoxyna), Harris (2004: 59)
- Cladonia robbinsii Evans - Brodo (1968: 183), Harris (2004: 59)
- Cladonia santensis Tuck. - Brodo (1968: 193), Harris (2004: 59)
- Cladonia scabriuscula (Del. in Duby) Nyl. - Brodo (1968: 195), Thomson (1984: 160), Harris (2004: 59)
- Cladonia simulata Robb. - Brodo (1968: 191), Harris (2004: 59)
- Cladonia subcariosa Vain. - Harris (2004: 59 as Cladonia sobolescens)
- Cladonia squamosa (Scop.) Hoffm. - Brodo (1968: 193), Thomson (1984: 161), Harris (2004: 59), Hauck et al. (2005: 5)
- Cladonia stellaris (Opiz) Pouzar & Vezda - Brodo (1968: 199 as Cladonia alpestris), Thomson (1984: 163), Harris (2004: 59)
- Cladonia strepsilis (Ach.) Grognot - Brodo (1968: 183), Harris (2004: 59)
- Cladonia stygia (Fr.) Ruoss - Harris (2004: 59)
- Cladonia subcariosa Nyl. - Brodo (1968: 184), Brodo (1968: 185 as Cladonia clavulifera), Harris (2004: 59 as Cladonia polycarpoides)
- Cladonia submitis Evans - Brodo (1968: 202), Harris (2004: 59)
- Cladonia subtenuis (Abb.) Evans f. subtenuis - Brodo (1968: 199), Harris (2004: 59), Harris (2006: 53)
- Cladonia subtenuis (Abb.) Evans f. cinerea Ahti - Brodo (1968: 199)
- Cladonia subulata (L.) F. H. Wiggers - Harris (2004: 59)
- Cladonia sulphurina (Michx.) Fr. - Thomson (1984: 169), Harris (2004: 59)
- Cladonia terrae-novae Ahti - Brodo (1968: 200), Harris (2004: 59)
- Cladonia turgida Ehrh. ex Hoffm. - Thomson (1984: 172), Harris (2004: 59)
- Cladonia uncialis (L.) Weber ex F. H. Wigg. - Brodo (1968: 197), Thomson (1984: 173), Harris (2004: 59)
- Cladonia verticillata (Hoffm.) Schaer. - Brodo (1968: 185), Thomson (1984: 174), Harris (2004: 59)
- Cladonia wainioi Savicz - Harris (2004: 59)
- Clauzadea monticola (Ach.) Hafellner & Bellem. - Harris (2004: 59)
- Clauzadeana macula (Taylor) Coppins & Rambold - Harris (2004: 60)
- Coccocarpia palmicola (Spreng.) Arv. & D. J. Galloway - Harris (2004: 60)
- Coenogonium luteum (Dicks.) Kalb & Lücking - Brodo (1968: 159 as Dimerella lutea), Harris (2004: 60)
- Coenogonium pineti (Schrad. ex Ach.) Lücking & Lumbsch - Brodo (1968: 159 as Dimerella diluta), Harris (2004: 60), Harris (2006: 53)
- Collema flaccidum (Ach.) Ach. - Thomson (1984: 186), Harris (2004: 60)
- Collema furfuraceum (Schaer.) Du Rietz - Thomson (1984: 187), Harris (2004: 60)
- Collema nigrescens (Huds.) DC. - Harris (2004: 60)
- Collema ryssoleum (Tuck.) A. Schneider - Harris (2004: 60)
- Collema subflaccidum Degel. - Harris (2004: 60), Brodo (1968: 160 erroneously as Collema subfurvum)
- Collemopsidium angermannicum (Degel.) A. Nordin - Harris (2004: 66 as Pyrenocollema strontianense)
- Cresponea chloroconia (Tuck.) Egea & Torrente - Harris (2006: 53), Harris (2004: 60)
- Cryptothele granuliforme (Nyl.) Henssen - Thomson (1997: 516 as Pyrenopsidium granuliforme)
- Cyphelium lucidum (Th. Fr.) Th. Fr. - Selva (1998: ), Harris (2004: 60)
- Cyphelium tigillare (Ach.) Ach. - Thomson (1997: 214), Harris (2004: 60)
- Cystocoleus ebeneus (Dillwyn) Thwaites - Harris (2004: 60)
- Dermatocarpon americanum Vain. - Harris (2004: 60)
- Dermatocarpon intestiniforme (Körb.) Hasse - Harris (2004: 60)
- Dermatocarpon luridum (With.) J. R. Laundon - Thomson (1984: 213 as Dermatocarpon fluviatile), Harris (2004: 60)
- Dermatocarpon miniatum (L.) W. Mann - Brodo (1968: 155), Thomson (1984: 219)
- Dibaeis baeomyces (L.f.) Rambold & Hertel - Brodo (1968: 179 as Baeomyces roseus), Thomson (1984: 51 as Baeomyces roseus), Harris (2004: 60)
- Dictyocatenulata alba Finley & E. F. Morris - Harris (2004: 60)
- Dimelaena oreina (Ach.) Norman - Brodo (1968: 257 sub Rinodina oreina), Thomson (1997: 216), Harris (2004: 60)
- Diploschistes muscorum (Scop.) R. Sant. subsp. muscorum - Harris (2004: 60)
- Diploschistes scruposus (Schreb.) Norm. - Brodo (1968: 159), Thomson (1997: 218), Harris (2004: 60)
- Diplotomma alboatrum (Hoffm.) Flot. - Harris (2004: 57 as Buellia alboatra)
- Diplotomma venustum (Körb.) Körb. - Harris (2004: 57 as Buellia venusta)
- Dirinaria frostii (Tuck.) Hale & W. L. Culb. - Harris (2004: 60)
- Enchylium bachmanianum (Fink.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 179 as Collema bachmanianum), Harris (2004: 60 as Collema bachmanianum)
- Enchylium coccophorum (Tuck.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 60 as Collema coccophorum)
- Enchylium conglomeratum (Hoffm.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 60 as Collema conglomeratum)
- Enchylium polycarpon (Hoff.) Otálora, P. M. Jørg. & Wedin -Thomson (1984: 190 as Collema polycarpon)
- Enchylium tenax (Sw.) Gray - Harris (2004: 60 as Collema tenax)
- Endocarpon diffractellum (Nyl.) Gueidan & Cl. Roux - Harris (2004: 68 as Staurothele diffractella)
- Endocarpon pusillum Hedw. - Harris (1987: 4), Harris (2004: 60)
- Eopyrenula intermedia Aptroot - Harris (2004: 60)
- Ephebe lanata (L.) Vain. - Thomson (1984: 225), Harris (2004: 60)
- Evernia mesomorpha Nyl. - Brodo (1968: 241), Thomson (1984: 229), Harris (2004: 60), Hauck et al. (2005: 5)
- Evernia prunastri (L.) Ach. - Harris (1987: 4), Harris (2004: 60)
- Flavocetraria cucullata (Bellardi) Kärnefelt & A. Thell - Thomson (1984: 76 as Cetraria cucullata), Harris (2004: 60)
- Flavocetraria nivalis (L.) Kärnefelt & A. Thell - Thomson (1984: 92 as Cetraria nivalis), Harris (2004: 60)
- Flavoparmelia caperata (L.) Hale - Brodo (1968: 228 sub Parmelia caperata), Harris (1987: 4), Harris (2004: 60)
- Flavopunctelia flaventior (Stirton) Hale - Harris (2004: 60)
- Flavopunctelia soredica (Nyl.) Hale - Hauck et al. (2005: 5)
- Foraminella ambigua (Wulf. in Jacq.) Nyl. - Brodo (1968: 226 as Parmeliopsis ambigua), Harris (2004: 64 as Parmeliopsis ambigua)
- Fuscidea arboricola Coppins & Tønsberg - Harris (2004: 60)
- Fuscidea lowensis (H. Magn.) Anderson & Hertel - Magnusson (1936: 11 Type in Uppsala, Sweden UPS), Hertel (1981: 450), Thomson (1997: 232), Harris (2004: 60), Fryday (2008: 306)
- Fuscidea mollis (Wahlenb.) V. Wirth & Vezda - Thomson (1997: 233)
- Fuscidea praeruptorum (Du Rietz & H. Magn.) V. Wirth & Vezda - Lowe (1939: as Lecidea praeruptorum), Harris (2004: 60)
- Fuscidea pusilla Tønsberg - Harris (2004: 60)
- Fuscidea recensa (Stirt.) Hertel, V. Wirth & Vezda - Thomson (1997: 234), Harris (2004: 60)
- Fuscidea scrupulosa (Eckf.) Fryday - Magnusson (1936: 10 as Lecidea kochiana var. subreagens Type in Upsala, Sweden UPS), Oberhollenzer & Wirth (1984: 575 as Fuscidea subreagens), Harris (2004: 60 as Fuscidea subreagens)
- Fuscopannaria leucosticta (Tuck.) P. M. Jørg. - Harris (2004: 60)
- Gassicurtia vernicoma (Tuck.) Marbach - Harris (2004: 57 as Buellia vernicoma)
- Graphis scripta (L.) Ach. - Brodo (1968: 158), Harris (2004: 60)
- Gyalecta jenensis (Batsch) Zahlbr. - Harris (2004: 60)
- Gyalecta russula (Körb. ex Nyl.) Baloch, Lumbsch & Wedin - Thomson (1997: 117 as Belonia russula)
- Gyalolechia flavorubescens (Hudson) Søchting, Frödén & Arup - Brodo (1968: 248 as Caloplaca aurantiaca), Harris (2004: 57 as Caloplaca flavorubescens)
- Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup - Brodo (1968: 250 as Caloplaca flavovirescens), Thomson (1997: 161 as Caloplaca flavovirescens), Harris (2004: 57 as Caloplaca flavovirescens)
- Gyalolechia xanthostigmoidea (Räsänen) Søchting, Frödén & Arup - Brodo (1968: 249 as Caloplaca discolor), Thomson (1997: 158 as Caloplaca discolor), Harris (2004: 57 as Caloplaca discolor)
- Haematomma ochroleucum (Necker) J. R. Laundon var. ochroleucum - Hauck et al. (2005: 5)
- Helocarpon crassipes (Th. Fr.) Coppins - Thomson (1997: 414 as Micarea crassipes), Harris (2004: 63 as Micarea crassipes)
- Hertelidea botryosa (Fr.) Printzen & Kantvilas - Brodo (1968: 165 as Lecidea botryosa), Thomson (1997: 332 as Lecidea botryosa)
- Heterodermia echinata (Taylor)W. L. Culb. - Harris (2004: 60)
- Heterodermia galactophylla (Tuck.)W. L. Culb. - Harris (2004: 60)
- Heterodermia hypoleuca (Muhlenberg) Trevisan - Harris (2004: 61)
- Heterodermia leucomela (L.) Poelt - Harris (2004: 61)
- Heterodermia obscurata (Nyl.) Trevisan - Brodo (1968: 262 sub Anaptychia obscurata), Harris (2004: 61)
- Heterodermia pseudospeciosa (Kurok.) W. L. Culb. - Brodo (1968: 263 as Anaptychia pseudospeciosa)
- Heterodermia speciosa (Wulfen) Trevisan - Harris (2004: 61)
- Heterodermia squamulosa (Degel.) W. L. Culb. - Harris (2004: 61)
- Heppia adglutinata (Kremp.) A. Massal. - Harris (2004: 60)
- Heppia lutosa (Ach.) Nyl. - Thomson (1997: 244)
- Hertelidea botryosa (Fr.) Printzen & Kantvilas - Harris (2004: 60)
- Hyperphyscia adglutinata (Flörke) Mayrh. & Poelt - Harris (2004: 61)
- Hyperphyscia syncolla (Nyl.) Kalb - Harris (2004: 61)
- Hypocenomyce scalaris (Ach. ex Lilj.) M. Choisy - Brodo (1968: 170 sub Lecidea scalaris), Thomson (1997: 248), Harris (2004: 61), Hauck et al. (2005: 5)
- Hypogymnia appalachensis Lendemer & R. C. Harris - Harris (2004: 61)
- Hypogymnia krogiae Ohlsson - Harris (2004: 61), Hauck et al. (2005: 5)
- Hypogymnia physodes (L.) Nyl. - Brodo (1968: 237), Thomson (1984: 241), Harris (2004: 61), Hauck et al. (2005: 5)
- Hypogymnia tubulosa (Schaer.) Havaas - Harris (2004: 61)
- Hypogymnia vittata (Ach.) Parrique - Thomson (1984: 243), Harris (2004: 61)
- Hypotrachyna livida (Taylor) Hale - Brodo (1968: 230 as Parmelia livida), Harris (2004: 61)
- Hypotrachyna rockii (Zahlbr.) Hale - Harris (2004: 61)
- Icmadophila ericetorum (L.) Zahlbr. - Thomson (1997: 249)Harris (2004: 61)
- Imshaugia aleurites (Ach.) S. F. Meyer - Brodo (1968: 226 as Parmeliopsis aleurites), Thomson (1984: 321 as Parmeliopsis aleurites), Harris (2004: 61), Hauck et al. (2005: 5)
- Imshaugia placorodia (Ach.) S. F. Meyer - Brodo (1968: 226 as Parmeliopsis placorodia), Harris (2004: 61)
- Ionaspis alba Lutzoni - Harris (2004: 61)
- Ionaspis lacustris (With.) J. R. Laundon - Thomson (1997: 245 as Hymenelia lacustris), Harris (2004: 61)
- Ionaspis odora (Ach. in Schaer.) Th. Fr. ex Stein - Brodo (1968: 213)
- Japewia subaurifera Muhr & Tønsberg - Hauck et al. (2005: 5)
- Japewia tornoensis (Nyl.) Tønsberg - Lowe (1939: as Lecidea), Thomson (1997: 387 as Lecidea tornoensis), Harris (2004: 61)
- Lasallia papulosa (Ach.) Llano - Brodo (1968: 204 as Umbilicaria papulosa), Thomson (1984: 245), Harris (2004: 61)
- Lasallia pensylvanica (Hoffm.) Llano - Thomson (1984: 246), Harris (2004: 61)
- Lathagrium undulatum (Flot.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 60 as Collema undulatum var. granulosum)
- Lecania cuprea (A. Massal.) van den Boom & Coppins - Harris (2004: 61)
- Lecania cyrtella (Ach.) Th. Fr. - Harris (2004: 61)
- Lecania naegelii (Hepp) Diederich & P. Boom - Harris (2004: 61)
- Lecanora albella (Pers.) Ach. var. albella - Imshaug & Brodo (1966: ), Harris (2004: 61)
- Lecanora albella (Pers.) Ach. var. rubescens (Imsh. & Brodo) Lumbsch - Harris (2004: 61)
- Lecanora albellula Nyl. - Thomson (1997: 299 as Lecanora piniperda)
- Lecanora albescens (Hoffm.) Branth & Rostr. - Harris (2004: 61)
- Lecanora allophana (Ach.) Nyl. - Thomson (1997: 266), Harris (2004: 61)
- Lecanora argentea Oksner & Volkova - Harris (2004: 61)
- Lecanora argentata (Ach.) Malme - Harris (2004: 61)
- Lecanora cadubriae (A. Massal.) Hedl. - Thomson (1997: 270), Harris (2004: 61)
- Lecanora caesiorubella Ach. subsp. caesiorubella - Harris (2004: 61)
- Lecanora chlarotera Nyl. - Brodo (1968: 214), Thomson (1997: 273), Thomson (1997:301 as Lecanora rugosella), Harris (2004: 61), Harris (2004: 62 as Lecanora rugosella)
- Lecanora cinereofusca H. Magn. var. cinereofusca - Brodo (1968: 217 as Lecanora degelii), Harris (2004: 61)
- Lecanora cinereofusca H. Magn. var. appalachensis Brodo - Harris (2004: 61)
- Lecanora circumborealis Brodo & Vitik. - Thomson (1997: 274), Harris (2004: 61)
- Lecanora cupressina Tuck. - Brodo (1968: 217), Harris (2004: 61)
- Lecanora dispersa (Pers.) Somm. - Brodo (1968: 218), Thomson (1997: 278), Harris (2004: 61)
- Lecanora fuscescens (Sommerf.) Nyl. - Lowe (1939 as Lecidea fuscescens), Harris (2004: 61)
- Lecanora glabrata (Ach.) Malme - Harris (2004: 61)
- Lecanora hagenii (Ach.) Ach. - Brodo (1968: 218), Thomson (1997:286), Harris (2004: 61)
- Lecanora hybocarpa (Tuck.) Brodo - Harris (2004: 61)
- Lecanora hypopta (Ach.) Vain. - Thomson (1997: 354 as Lecidea hypopta), Harris (2004: 61)
- Lecanora impudens Degel. - Thomson (1997: 287), Harris (2004: 61), Hauck et al. (2005: 5)
- Lecanora imshaugii Brodo - Harris (2004: 61)
- Lecanora intricata (Ach.) Ach. - Harris (2004: 61)
- Lecanora invadens H. Magn. - Harris (2004: 61)
- Lecanora louisianae B. de Lesd. - Brodo (1984: ), Harris (2004: 61)
- Lecanora minutella Nyl. - Harris (2004: 61)
- Lecanora muralis (Schreb.) Rabenh. - Brodo (1968: 219), Thomson (1997: 295), Harris (2004: 61)
- Lecanora perplexa Brodo - Thomson (1997: 298), Harris (2004: 61)
- Lecanora placidensis (H. Magn.) Knoph et al. - Magnusson (xx: xx Type), Harris (2004: 61)
- Lecanora polytropa (Ehrh. in Hoffm.) Rabenh. - Thomson (1997: 299), Harris (2004: 62)
- Lecanora pseudistera Nyl. - Harris (2004: 62)
- Lecanora pulicaris (Pers.) Ach. - Thomson (1997: 301), Harris (2004: 62), Hauck et al. (2005: 5)
- Lecanora saligna (Schrad.) Zahlbr. - Thomson (1997: 305)
- Lecanora sambuci (Pers.) Nyl. - Harris (2004: 62)
- Lecanora semipallida H. Magn. - Sliwa (xx: xx)
- Lecanora strobilina (Spreng.) Kieffer - Brodo (1968: 217 erroneously as Lecanora conizaea), Harris (2004: 62)
- Lecanora subimmergens Vain. - Harris (2004: 62)
- Lecanora subintricata (Nyl.) Th. Fr. - Brodo (1968: 219)
- Lecanora subpallens Zahlbr. - Brodo (1968: 214 as Lecanora caesiorubella subsp. lathamii), Harris (2004: 62)
- Lecanora subrugosa Nyl. - Harris (2004: 62)
- Lecanora symmicta (Ach.) Ach. - Brodo (1968: 220), Harris (2004: 62)
- Lecanora thysanophora R. C. Harris - Harris (2004: 62)
- Lecanora umbrosa Degelius - Harris (2004: 62)
- Lecanora valesiaca (Müll. Arg.) Stizenb. - Harris (2004: 62)
- Lecanora varia (Hoffm.) Ach. - Thomson (1997: 311)
- Lecanora wisconsinensis H. Magn. - Harris (2004: 62)
- Lecanora xylophila Hue - Brodo (1968: 218 erroneously as Lecanora laevis), Thomson (1997: 284 as Lecanora grantii), Harris (2004: 62)
- Lecidea albofuscescens Nyl. - Harris (2004: 62)
- Lecidea amniculensis Lowe - Lowe (1939: Type), Harris (2004: 62)
- Lecidea atomaria Th. Fr. - Harris (2004: 62)
- Lecidea auriculata Th. Fr. subsp. auriculata - Thomson (1997: 329), Harris (2004: 62)
- Lecidea brunneofusca H. Magn. - Magnusson (xx: xx Type), Harris (2004: 62)
- Lecidea carnulenta (Tuck.) Fink - Harris (2004: 62)
- Lecidea cellularis Lowe - Lowe (xx: xx Type), Harris (2004: 62)
- Lecidea cyrtidia Tuck. - Brodo (1968: 167), Harris (2004: 62)
- Lecidea erythrophaea Flörke ex Sommerf. - Harris (2004: 62)
- Lecidea lapicida (Ach.) Ach. - Thomson (1997: 357), Harris (2004: 62)
- Lecidea leprarioides Tønsberg - Hauck et al. (2005: 5)
- Lecidea lithophila (Ach.) Ach. - Lowe (1939: ), Thomson (1997: 362), Harris (2004: 62)
- Lecidea lyngei Degel. - Harris (2004: 62)
- Lecidea nylanderi (Anzi) Th. Fr. - Brodo (1968: 169), Thomson (1997: 366), Harris (2004: 62), Hauck et al. (2005: 5)
- Lecidea plana (J. Lahm. in Körb.) Nyl. - Thomson (1997: 372), Harris (2004: 62)
- Lecidea plebeja Nyl. - Brodo (1968: 169 as Lecidea myriocarpoides), Thomson (1997: 374), Harris (2004: 62), Harris (2004: 62 as Lecidea myriocarpoides)
- Lecidea pulla Lowe - Lowe (1939: 245 Type), Harris (2004: 62)
- Lecidea pycnocarpa (Körb.) Ohlert - Harris (2004: 62)
- Lecidea tessellata Flörke - Harris (2004: 62)
- Lecidea turgidula Fr. - Thomson (1997: 388), Harris (2004: 62)
- Lecidea varians Ach. - Brodo (1968: 171), Harris (2004: 67 as Pyrrhospora varians)
- Lecidea virginiensis Calkins & Nyl. - Harris (2004: 62)
- Lecidella achristotera (Nyl.) Hertel & Leuckert - Harris (2004: 62)
- Lecidella carpathica Körb. - Thomson (1997: 395)
- Lecidella elaeochroma (Ach.) M. Choisy - Harris (2004: 62)
- Lecidella stigmatea (Ach.) Hertel & Leuckert - Thomson (1997: 402), Harris (2004: 62)
- Lecidoma demissum (Rutstr.) Gotth. Schneider & Hertel - Thomson (1997: 405), Harris (2004: 62)
- Leimonis erratica (Körb.) R. C. Harris & Lendemer - Brodo (1968: 165 sub Lecidea erratica var. erratica), Harris (2004: 63 as Micarea erratica)
- Lempholemma cladodes (Tuck.) Zahlbr. - Harris (2004: 62)
- Lempholemma polyanthes (Bernh.) A. Massal. - Thomson (1997: 407 as Lempholemma myriococcum), Harris (2004: 62)
- Lepra amara (Ach.) Hafellner - Brodo (1968: 206 as Pertusaria amara), Harris (2004: 65 as Pertusaria amara)
- Lepra dactylina (Ach.) Hafellner - Thomson (1997: 453 as Pertusaria dactylina), Harris (2004: 65 as Pertusaria dactylina)
- Lepraria elobata Tønsberg - Harris (2004: 63)
- Lepraria finkii (B. de Lesd. in Hue) R. C. Harris - Harris (1985: xx as Lepraria spec.), Harris (1987: 5), Harris (2004: 63 erroneously as Lepraria lobificans)
- Lepraria jackii Tønsberg - Hauck et al. (2005: 5)
- Lepraria membranacea (Dicks.) Vain. - Harris (2004: 63)
- Lepraria neglecta (Nyl.) Erichsen - Brodo (1968: 263 as Leparia zonata Type), Harris (2004: 62 as Lepraria cacuminum), Harris (2004: 62 as Lepraria caesioalba), Harris (2004: 63), Harris (2004: 63 with psoromic acid)
- Lepraria neglecta (Nyl.) Erichsen -
- Lepraria rigidula (B. de Lesd.) Tønsberg - Harris (2004: 63)
- Leproplaca cirrochroa (Ach.) Arup, Frödén & Søchting - Wetmore & Kärnefelt (1998: as Caloplaca cirrochroa), Harris (2004: 57 as Caloplaca cirrochroa)
- Leptogium azureum (Sw.) Mont. - Harris (2004: 63)
- Leptogium chloromelum (Ach.) Nyl. - Harris (2004: 63)
- Leptogium corticola (Taylor) Tuck. - Brodo (1968: 160), Harris (2004: 63)
- Leptogium cyanescens (Rabenh.) Körb. - Brodo (1968: 160), Harris (2004: 63), Lendemer (2008: 99)
- Leptogium hirsutum Sierk - Harris (2004: 63)
- Leptogium laceroides B. de Lesd. - Sierk (1964: ), Harris (2004: 63)
- Leptogium milligranum Sierk - Harris (2004: 63)
- Leptogium pulchellum (Ach.) Nyl. - Harris (2004: 60 as Collema pulchellum)
- Leptogium saturninum (Dicks.) Nyl. - Thomson (1984: 262), Harris (2004: 63)
- Leptorhaphis epidermidis (Ach.) Th. Fr. - Brodo (1968: 147)
- Lichenomphalia hudsoniana (H. S. Jenn.) Redhead, Lutzoni, Moncalvo & Vilgalys - Thomson (1984: 196 as Coriscium viride), Harris (2004: 63)
- Lichinella nigritella (Lettau) P. P. Moreno & Egea - Harris (2004: 63)
- Lithothelium hyalosporum (Nyl.) Aptroot - Harris (2004: 63)
- Lithothelium septemseptatum (R. C. Harris) Aptroot - Harris (2004: 63)
- Lobaria pulmonaria (L.) Hoffm. - Brodo (1968: 161), Harris (2004: 63)
- Lobaria quercizans Michx. - Brodo (1968: 162), Harris (2004: 63)
- Lopadium disciforme (Flot.) Kullh. - Harris (2004: 63)
- Loxospora cismonica (Beltr.) Hafellner - Harris (2004: 63), Hauck et al. (2005: 5)
- Loxospora elatina (Ach.) A. Massal. - Harris (2004: 63)
- Loxospora ochrophaea (Tuck.) R. C. Harris - Brodo (1968: 223 as Haematomma ochrophaeum), Harris (2004: 63), Hauck et al. (2005: 5)
- Maronea polyphaea H. Magn. - Harris (2004: 63)
- Megalaria laureri (Hepp ex Th. Fr.) Hafellner - Harris (2004: 63)
- Megalospora porphyritis (Tuck.) R. C. Harris - Harris (2004: 63)
- Megaspora verrucosa (Ach.) Hafellner & V. Wirth - Harris (2004: 63)
- Melanelia culbersonii (Hale) A. Thell - Harris (2004: 63)
- Melanelia hepatizon (Ach.) A. Thell - Thomson (1984: 82 as Cetraria hepatizon), Harris (2004: 63)
- Melanelia stygia (L.) Essl. - Harris (2004: 63)
- Melanelixia fuliginosa (Fr. ex Duby) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Harris (2004: 63 as Melanelia fuliginosa)
- Melanelixia glabratula (Lamy) Sandler & Arup - Thomson (1984: 303 as Parmelia glabratula)
- Melanelixia subaurifera (Nyl.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Brodo (1968: 235 sub Parmelia subaurifera), Thomson (1984: 316 sub Parmelia subaurifera), Harris (2004: 63 as Melanelia subaurifera)
- Melanohalea exasperata (De Not.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Harris (2004: 63 as Melanelia exasperata)
- Melanohalea halei (Ahti) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Harris (2004: 63 as Melanelia halei)
- Melanohalea infumata (Nyl.) O. Blanco et al. - Harris (2004: 63 as Melanelia infumata)
- Melanohalea olivacea (L.) O. Blanco et al. - Thomson (1984: 306 as Parmelia olivacea), Harris (2004: 63 as Melanelia olivacea)
- Melanohalea septentrionalis (Lynge) O. Blanco et al. - Thomson (1984: 311 as Parmelia septentrionalis), Harris (2004: 63 as Melanelia septentrionalis)
- Menegazzia terebrata (Hoffm.) A. Massal. - Harris (2004: 63)
- Micarea chlorosticta (Tuck.) R. C. Harris - Brodo (1968: 173 as Bacidia chlorosticta), Harris (2004: 63)
- Micarea endocyanea (Tuck. ex Willey) R. C. Harris - Harris (2004: 63)
- Micarea leprosula (Th. Fr.) Coppins & A. Fletcher - Harris (2004: 63)
- Micarea lignaria (Ach.) Hedl. - Thomson (1997: 417), Harris (2004: 63)
- Micarea lithinella (Nyl.) Hedl. - Harris (2004: 64)
- Micarea melaena (Nyl.) Hedl. - Brodo (1968: 152), Thomson (1997: 419), Harris (2004: 64), Hauck et al. (2005: 5)
- Micarea misella (Nyl.) Hedlund - Harris (2004: 64)
- Micarea neostipitata Coppins & P. May - Harris (2004: 64)
- Micarea peliocarpa (Anzi) Coppins & R. Sant. - Brodo (1968: 175 as Bacidia trisepta), Harris (2004: 64)
- Micarea prasina Fr. - Harris (2004: 64), Hauck et al. (2005: 5)
- Micarea rhabdogena (Norm.) Hedl. - Harris (2004: 64)
- Micarea sylvicola (Flot.) Vezda & V. Wirth - Harris (2004: 64)
- Micarea ternaria (Nyl.) Vezda - Harris (2004: 64)
- Miriquidica plumbeoatra (Vain.) A. J. Schwab & Rambold - Lowe (1939: Type as Lecidea furva), Lowe (xx: xx as Lecidea humilis Type), Harris (2004: 62 as Lecidea furva), Harris (2004: 62 as Lecidea humilis)
- Miriquidica pycnocarpa (Körb.) Andreev - Harris (2004: 62 as Lecidea marciensis)
- Montanelia disjuncta (Erichsen) Divakar, A. Crespo, Wedin & Essl. - Harris (2004: 63 as Melanelia disjuncta)
- Montanelia panniformis (Nyl.) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 309 as Parmelia panniformis), Harris (2004: 63 as Melanelia panniformis)
- Montanelia sorediata (Ach.) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 312 as Parmelia sorediosa), Harris (2004: 63 as Melanelia sorediata)
- Mycobilimbia carneoalbida (Müll. Arg.) S. Ekman & Printzen - Harris (2004: 64)
- Mycobilimbia epixanthoides (Nyl.) Vitikainen et al. - Harris (2004: 64)
- Mycoblastus affinis (Schaer.) T. Schauer - Harris (2004: 64)
- Mycoblastus alpinus (Fr.) Kernst. - Hauck et al. (2005: 5)
- Mycoblastus sanguinarius (L.) Norman - Thomson (1997: 426), Harris (2004: 64), Hauck et al. (2005: 5)
- Mycoporum compositum (A. Massal.) R. C. Harris - Harris (2004: 64)
- Mycoporum pycnocarpoides Müll. Arg. - Harris (2004: 64)
- Myelochroa aurulenta (Tuck.) Elix & Hale - Brodo (1968: 227 sub Parmelia aurulenta), Harris (2004: 64)
- Myelochroa galbina (Ach.) Elix & Hale - Brodo (1968: 229 as Parmelia galbina), Harris (2004: 64)
- Myriospora smaragdula (Wahlenb. ex Ach.) K. Knudsen & Abbott - Harris (2004: 56 as Acarospora smaragdula)
- Nadvornikia sorediata R. C. Harris - Harris (2004: 64)
- Nephroma arcticum (L.) Torss. - Thomson (1984: 277), Harris (2004: 64)
- Nephroma bellum (Spreng.) Tuck. - Thomson (1984: 278), Harris (2004: 64)
- Nephroma helveticum Ach. subsp. helveticum - Thomson (1984: 279 as Nephroma helveticum var. helveticum), Harris (2004: 64 as Nephroma helveticum var. helveticum)
- Nephroma laevigatum Ach. - Brodo (1968: 162)
- Nephroma parile (Ach.) Ach. - Thomson (1984: 282), Harris (2004: 64)
- Ochrolechia africana Vain. - Brodo (1968 as Ochrolechia sp.), Harris (2004: 64)
- Ochrolechia androgyna (Hoffm.) Arnold - Harris (2004: 64)
- Ochrolechia arborea (Kreyer) Almborn - Harris (2004: 64)
- Ochrolechia frigida (Sw.) Lynge - Thomson (1997: 431)
- Ochrolechia mexicana Vain. - Harris (2004: 64)
- Ochrolechia tartarea (L.) A. Massal. - Harris (2004: 64)
- Ochrolechia trochophora (Vain.) Oshio var. trochophora - Brodo (1968: 221 as Ochrolechia rosella), Harris (2004: 64 as Ochrolechia pseudopallescens), Harris (2004: 64)
- Ochrolechia yasudae Vain. - Harris (2004: 64)
- Opegrapha rufescens Pers. - Brodo (1968: 153), Harris (2004: 64)
- Opegrapha vulgata Ach. - Brodo (1968: 153 as Opegrapha cinerea), Harris (2004: 64)
- Ophioparma lapponica (Räsänen) Hafellner & R. W. Rogers - Thomson (1997: 440)
- Ophioparma ventosa (L.) Norman - Harris (2004: 64)
- Orphniospora moriopsis (A. Massal.) D. Hawksw. - Thomson (1997: 441), Harris (2004: 64)
- Pannaria lurida (Mont.) Nyl. subsp. lurida - Brodo (1968: 161)
- Pannaria lurida (Mont.) Nyl. subsp. russellii (Tuck.) P. M. Jørg. - Harris (2004: 64)
- Pannaria subfusca P. M. Jørg. - Harris (2004: 64)
- Parmelia neodiscordans Hale - Harris (2004: 64 as Parmelia neodiscordans)
- Parmelia omphalodes (L.) Ach. - Thomson (1984: 308), Harris (2004: 64)
- Parmelia saxatilis (L.) Ach. - Brodo (1968: 234), Thomson (1984: 310), Harris (1987: 5), Harris (2004: 64), Hauck et al. (2005: 5)
- Parmelia squarrosa Hale - Thomson (1984: 313), Harris (2004: 64)
- Parmelia sulcata Tayl. - Brodo (1968: 236), Thomson (1984: 318), Harris (2004: 64)
- Parmeliopsis capitata R. C. Harris ex J. W. Hinds & P. L. Hinds - Harris (2004: 64 as Parmeliopsis capitata), Hauck et al. (2005: 5 as Parmeliopsis capitata)
- Parmeliopsis hyperopta (Ach.) Arnold - Thomson (1984: 326), Harris (2004: 64)
- Parmeliopsis subambigua Gyelnik - Harris (2004: 64)
- Parmotrema arnoldii (Du Rietz) Hale - Harris (2004: 64)
- Parmotrema cetratum (Ach.) Hale - Harris (2004: 67 as Rimelia cetrata)
- Parmotrema crinitum (Ach.) M. Choisy - Harris (1987: 4), Harris (2004: 64)
- Parmotrema dilatatum (Vain.) Hale - Brodo (1968: 229 as Parmelia dilatata)
- Parmotrema hypoleucinum (J. Steiner) Hale - Harris (2004: 64)
- Parmotrema hypotropum (Nyl.) Hale - Brodo (1968: 229 as Parmelia hypotropa), Harris (1987: 5 as Parmelia hypotropa), Harris (2004: 65)
- Parmotrema margaritatum (Hue) Hale - Harris (2004: 65)
- Parmotrema perforatum (Jacq.) A. Massal. - Brodo (1968: 232 as Parmelia perforata), Harris (2004: 65)
- Parmotrema perlatum (Huds.) M. Choisy - Brodo (1968: 233 as Parmelia perlata), Harris (2004: 64 as Parmotrema chinense)
- Parmotrema reticulatum (Taylor) M. Choisy - Brodo (1968: 233 as Parmelia reticulata), Harris (2004: 67 as Rimelia reticulata)
- Parmotrema stuppeum (Taylor) Hale - Harris (2004: 65)
- Parmotrema submarginale (Michx.) DePriest & B. W. Hale - Brodo (1968: 231 as ), Harris (2004: 65)
- Peltigera aphthosa (L.) Willd. - Thomson (1984: 329), Harris (2004: 65)
- Peltigera canina (L.) Willd. - Harris (2004: 65)
- Peltigera degenii Gyelnik - Harris (2004: 65)
- Peltigera didactyla (With.) J. R. Laundon - Brodo (1968: 164 as Peltigera canina var. spuria), Thomson (1984: 332 as Peltigera canina f. sorediata), Harris (1987: 4), Harris (2004: 65)
- Peltigera elisabethae Gyelnik - Harris (2004: 65)
- Peltigera evansiana Gyelnik - Harris (2004: 65)
- Peltigera extenuata ((Nyl. ex Vain.) Lojka - Harris (2004: 65)
- Peltigera horizontalis (Huds.) Baumg. - Thomson (1984: 337), Harris (2004: 65)
- Peltigera hydrothyria Miadl. & Lutzoni - Harris (2004: 61 as Hydrothyria venosa)
- Peltigera hymenina (Ach.) Delise - Harris (2004: 65)
- Peltigera lepidophora (Vain.) Bitter - Harris (2004: 65)
- Peltigera leucophlebia (Nyl.) Gyelnik - Brodo (1968: 163 as Peltigera aphthosa var. variolosa), Thomson (1984: 330 as Peltigera aphthosa var. leucophlebia), Harris (2004: 65)
- Peltigera membranacea (Ach.) Nyl. - Thomson (1984: 340), Harris (2004: 65)
- Peltigera neckeri Müll. Arg. - Harris (2004: 65)
- Peltigera neopolydactyla (Gyelnik) Gyelnik - Harris (2004: 65)
- Peltigera polydactylon (Neck.) Hoffm. - Brodo (1968: 164), Thomson (1984: 343), Harris (2004: 65)
- Peltigera praetextata (Flörke in Somm.) Vain. - Brodo (1968: 164), Harris (2004: 65)
- Peltigera rufescens (Weiss) Humboldt - Brodo (1968: 163 as Peltigera canina var. rufescens), Thomson (1984: 333 as Peltigera canina var. rufescens), Harris (2004: 65)
- Peltigera scabrosa Th. Fr. - Thomson (1984: 344)
- Pertusaria consocians Dibben - Harris (2004: 65)
- Pertusaria globularis (Ach.) Tuck. - Harris (2004: 65)
- Pertusaria hypothamnolica Dibben - Dibben (1980: ), Harris (2004: 65)
- Pertusaria leioplaca DC. - Brodo (1968: 206 as Pertusaria alpina), Thomson (1997: 447 as Pertusaria alpina), Harris (2004: 65 as Pertusaria alpina), Harris (2004: 65 as Pertusaria leucostoma)
- Pertusaria macounii (I. M. Lamb) Dibben - Brodo (1968: 212 as Melanaria macounii), Harris (2004: 65)
- Pertusaria paratuberculifera Dibben - Dibben (1980: 101 Type), Harris (1987: 5), Harris (2004: 65)
- Pertusaria plittiana Erichsen - Harris (2004: 65)
- Pertusaria propinqua Müll. Arg. - Brodo (1968: 206), Harris (2004: 65)
- Pertusaria pustulata (Ach.) Duby - Harris (2004: 65)
- Pertusaria rubefacta Erichsen - Harris (2004: 65)
- Pertusaria subpertusa Brodo - Brodo (1968: 206 Type oder an anderer Stelle), Harris (2004: 65)
- Pertusaria xanthodes Müll. Arg. - Brodo (1968: 211), Harris (2004: 65)
- Phaeographis dendritica (Ach.) Müll. Arg. - Brodo (1968: 158)
- Phaeographis inusta (Ach.) Müll. Arg. - Harris (2004: 65)
- Phaeophyscia adiastola (Essl.) Essl. - Harris (2004: 65)
- Phaeophyscia ciliata (Hoffm.) Moberg - Harris (2004: 65)
- Phaeophyscia endococcina (Körb.) Moberg - Thomson (1984: 348)
- Phaeophyscia endococcinodes (Poelt) Essl. - Harris (2004: 65)
- Phaeophyscia hirsuta (Mereschk.) Essl. - Harris (2004: 65 as Phaeophyscia cernohorskyi)
- Phaeophyscia hirtella Essl. - Harris (2004: 65)
- Phaeophyscia hispidula (Ach.) Essl. - Harris (2004: 65)
- Phaeophyscia insignis (Mereschkowsky) Moberg - Harris (2004: 65)
- Phaeophyscia orbicularis (Neck.) Moberg - Brodo (1968: 260 sub Physcia orbicularis), Harris (1987: 5)
- Phaeophyscia pusilloides (Zahlbr.) Essl. - Harris (2004: 65)
- Phaeophyscia rubropulchra (Degel.) Essl. - Harris (2004: 65)
- Phaeophyscia sciastra (Ach.) Moberg - Harris (2004: 65)
- Phaeophyscia squarrosa Kashiwadani - Harris (2004: 65)
- Phlyctis argena (Sprengel) Flot. - Harris (2004: 65)
- Physcia adscendens (Th. Fr.) H. Olivier - Brodo (1968: 258), Harris (2004: 65)
- Physcia aipolia (Ehrh. in Humb.) Hampe in Fürnr. var. aipolia - Brodo (1968: 259), Thomson (1984: 353), Harris (2004: 66)
- Physcia americana G. Merr. - Brodo (1968: 262 as Physcia tribacoides), Harris (2004: 66)
- Physcia caesia (Hoffm.) Fürnrohr - Thomson (1984: 354), Thomson (1984: 352), Harris (2004: 66)
- Physcia dubia (Hoffm.) Lettau - Harris (2004: 66)
- Physcia millegrana Degel. - Brodo (1968: 259), Harris (2004: 66)
- Physcia phaea (Tuck.) Thoms.- Thomson (1984: 356), Harris (2004: 66)
- Physcia stellaris (L.) Nyl. - Brodo (1968: 261), Harris (2004: 66)
- Physcia subtilis Degel. - Brodo (1968: 261), Harris (2004: 66), Lendemer (2008: 99)
- Physciella chloantha (Ach.) Essl. - Harris (2004: 66)
- Physciella melanchra (Hue) Essl. - Harris (2004: 66)
- Physconia detersa (Nyl.) Poelt - Thomson (1984: 359), Harris (2004: 66)
- Physconia leucoleiptes (Tuck.) Essl. - Harris (2004: 66)
- Pilophorus cereolus (Ach.) Th. Fr. in Hellbom - Thomson (1984: 362), Harris (2004: 66)
- Pilophorus fibula (Tuck.) Th. Fr. - Harris (2004: 66)
- Placidiopsis minor R. C. Harris - Harris (2004: 66)
- Placidium arboreum (Schwein. ex E. Michener) Lendemer - Harris (2004: 66 as Placidium tuckermanii)
- Placidium squamulosum (Ach.) Breuss - Harris (2004: 66)
- Placynthiella icmalea (Ach.) Coppins & P. James - Harris (2004: 66)
- Placynthiella oligotropha (J. R. Laundon) Coppins & P. James - Harris (2004: 66)
- Placynthiella uliginosa (Schrad.) Coppins & James - Brodo (1968: 170 sub Lecidea uliginosa), Thomson (1997: 475), Harris (2004: 66)
- Placynthium flabellosum (Tuck.) Zahlbr. - Harris (2004: 66)
- Placynthium nigrum (Huds.) S. Gray - Brodo (1968: 161), Thomson (1984: 366), Harris (2004: 66)
- Placynthium petersii (Nyl.) Burnham - Harris (2004: 66)
- Placynthium stenophyllum (Tuck.) Fink - Harris (2004: 66)
- Platismatia glauca (L.) W. L. Culb. & C. F. Culb. - Thomson (1984: 368), Hauck et al. (2005: 5), Harris (2004: 66)
- Platismatia tuckermanii (Oakes) W. L. Culb. & C. F. Culb. - Brodo (1968: 239 sub Cetraria tuckermanii), Harris (2004: 66)
- Polycauliona polycarpa (Hoffm.) Frödén, Arup, & Søchting - Thomson (1984: 487 as Xanthoria polycarpa)
- Polysporina simplex (Davis) Vezda - Brodo (1968: 205 as Sarcogyne simplex), Thomson (1997: 486), Harris (2004: 66)
- Polysporina subfuscescens (Nyl.) K. Knudsen & Kocourk. - Harris (1987: 4 as Acarospora subfuscescens), Harris (2004: 66 erroneously as Polysporina lapponica)
- Porina nucula Ach. - Brodo (1968: 156)
- Porpidia albocaerulescens (Wulfen) Hertel & Knoph - Brodo (1968: 165 sub Lecidea albocaerulescens), Harris (2004: 66)
- Porpidia cinereoatra (Ach.) Hertel & Knoph - Harris (2004: 66), Harris (2004: 66 as Porpidia herteliana)
- Porpidia contraponenda (Arnold) Knoph & Hertel - Lowe (1939: 256 as Lecidea diversa Type in MICH), Gowan (1989: 42 as Porpidia diversa), Harris (2004: 66 as Porpidia diversa), Fryday (2005: xx)
- Porpidia crustulata (Ach.) Hertel & Knoph - Harris (2004: 66)
- Porpidia macrocarpa (DC.) Hertel & A. J. Schwab - Brodo (1968: 169 sub Lecidea macrocarpa), Harris (2004: 66)
- Porpidia subsimplex (H. Magn.) Fryday - Harris (2004: 66 as Porpidia tahawasiana)
- Porpidia tuberculosa (Sm. in Sm. & Sow.) Hertel & Knoph - Thomson (1997: 500), Harris (2004: 66)
- Protoblastenia rupestris (Scop.) J. Steiner - Harris (2004: 66)
- Protomicarea limosa (Ach.) Hafellner - Thomson (1997: 361 as Lecidea limosa), Harris (2004: 66)
- Protoparmelia badia (Hoffm.) Hafellner - Thomson (1997: 269 as Lecanora badia), Harris (2004: 66)
- Pseudevernia cladonia (Tuck.) Hale & W. L. Culb. - Harris (2004: 66), Hauck et al. (2005: 5)
- Pseudevernia consocians (Vain.) Hale & W. L. Culb. - Harris (2004: 66), Hauck et al. (2005: 5)
- Pseudosagedia aenea (Wallr.) Hafellner & Kalb - Harris (2004: 68 as Trichothelium aeneum)
- Pseudosagedia cestrensis (Tuck. ex E. Michener) R. C. Harris - Brodo (1968: 156 as Porina cestrensis)
- Psilolechia clavulifera (Nyl.) Coppins - Harris (2004: 66)
- Psilolechia lucida (Ach.) M. Choisy - Harris (2004: 66)
- Psora decipiens (Hedwig) Hoffm. - Thomson (1997: 507), Harris (2004: 66)
- Psora pseudorussellii Timdal - Harris (2004: 66)
- Psorotichia schaereri (A. Massal.) Arnold - Harris (2004: 66)
- Psorula rufonigra (Tuck.) Gotth. Schneider - Harris (2004: 66)
- Punctelia appalachensis (W. L. Culb.) Krog - Brodo (1968: 227 as Parmelia appalachensis), Harris (2004: 66)
- Punctelia bolliana (Müll. Arg.) Krog - Harris (2004: 66)
- Punctelia rudecta (Ach.) Krog - Brodo (1968: 234 as Parmelia rudecta), Harris (2004: 66)
- Pycnothelia papillaria Dufour - Brodo (1968: 177), Thomson (1984: 377), Harris (2004: 66)
- Pyrenopsis polycocca (Nyl.) Tuck. - Brodo et al. (2001: map), Harris (2004: 66)
- Pyrenula cruenta (Mont.) Trevisan - Brodo (1968: 155 as Melanotheca cruenta), Harris (2004: 66)
- Pyrenula dermatodes (Borrer) Schaer. - Harris (xx: xx as Pyrenula lucifera Type), Harris (2004: 66 as Pyrenula lucifera)
- Pyrenula laevigata (Pers.) Arnold - Harris (2004: 66)
- Pyrenula macounii R. C. Harris - Harris (2004: 67)
- Pyrenula pseudobufonia (Rehm) R. C. Harris - Harris (2004: 67)
- Pyrenula subelliptica (Tuck.) R. C. Harris - Harris (2004: 67)
- Pyrrhospora quernea (Ach.) Körb. - Harris (2004: 67)
- Pyxine sorediata (Ach.) Mont. in Sagra - Brodo (1968: 258), Harris (2004: 67)
- Pyxine subcinerea Stirt. - Harris (2004: 67)
- Ramalina americana Hale - Brodo (1968: 243 erroneously as Ramalina fastigiata), Harris (2004: 67)
- Ramalina complanata (Sw. in Ach.) Ach. - Brodo (1968: 242)
- Ramalina denticulata Nyl. - Harris (2004: 67)
- Ramalina intermedia (Delise ex Nyl.) Nyl. - Thomson (1984: 379), Harris (2004: 67)
- Ramalina petrina Bowler & Rundel - Harris (2004: 67)
- Ramalina pollinaria (Westr.) Ach. - Harris (2004: 67)
- Ramalina stenospora Müll. Arg. - Brodo (1968: 243), Harris (2004: 67)
- Ramalina willeyi R. H. Howe - Brodo (1968: 244), Harris (2004: 67)
- Ramboldia elabens (Fr.) Kantvilas & Elix - Harris (2004: 67 as Pyrrhospora elabens)
- Ramboldia russula (Ach.) Hafellner - Harris (2004: 67 as Pyrrhospora russula)
- Rhizocarpon badioatrum (Flörke ex Sprengel) Th. Fr. - Harris (2004: 67)
- Rhizocarpon cinereovirens (Müll. Arg.) Vain. - Brodo (1968: 176), Thomson (1997: 528), Harris (2004: 67)
- Rhizocarpon disporum (Hepp) Müll. Arg. - Harris (2004: 67)
- Rhizocarpon eupetraeoides (Nyl.) Blomberg & Forss. - Harris (2004: 67)
- Rhizocarpon eupetraeum (Nyl.) Arnold - Brodo (1968: 177 as Rhizocarpon intermedium), Thomson (1997: 533), Harris (2004: 67)
- Rhizocarpon geminatum Körb. - Thomson (1997: 537)
- Rhizocarpon geographicum (L.) DC. - Thomson (1997: 538), Harris (2004: 67)
- Rhizocarpon grande (Flörke in Flot.) Arnold - Brodo (1968: 176), Thomson (1997: 539), Harris (2004: 67)
- Rhizocarpon hochstetteri (Körb.) Vain. - Thomson (1997: 540)
- Rhizocarpon infernulum (Nyl.) Lynge - Harris (2004: 67 as Rhizocarpon infernulum f. sylvaticum)
- Rhizocarpon lavatum (Fr.) Hazsl. - Harris (2004: 67)
- Rhizocarpon lecanorinum Anders - Brodo (2001: ), Harris (2004: 67)
- Rhizocarpon obscuratum (Ach.) A. Massal. - Brodo (1968: 177), Thomson (1997: 545)
- Rhizocarpon oederi (Weber) Körb. - Harris (2004: 67)
- Rhizocarpon rubescens Th. Fr. - Harris (2004: 67)
- Rhizocarpon subgeminatum Eitner - Harris (2004: 67)
- Rhizocarpon submodestum (Vain.) Vain. - Harris (2004: 67)
- Rhizocarpon timdalii Ihlen & Fryday - Harris (2004: 67)
- Rhizoplaca chrysoleuca (Sm.) Zopf - Brodo (1968: 219 sub Lecanora rubina), Harris (2004: 67)
- Rhizoplaca subdiscrepans (Nyl.) R. Santesson - Harris (2004: 67)
- Rimularia badioatra (Kremp.) Hertel & Rambold - Harris (2004: 67)
- Rimularia caeca (Lowe) Rambold & Printzen - Lowe (xx: xx Type), Harris (2004: 67)
- Rimularia sphacelata (Th. Fr.) Hertel & Rambold - Harris (2004: 62 as Lecidea sphacelata)
- Rinodina adirondackii H. Magn. - Magnusson (1947: 48 Type in Uppsala, Sweden UPS), Harris (2004: 67)
- Rinodina ascociscana (Tuck.) Tuck. - Harris (2004: 67)
- Rinodina bischoffii (Hepp) A. Massal. - Harris (2004: 67)
- Rinodina cana (Arnold) Arnold - Harris (2004: 67)
- Rinodina confragosa (Ach.) Körb. - Brodo (1968: 256)
- Rinodina gennarii Bagl. - Brodo (1968: 258 as Rinodina salina), Harris (2004: 67)
- Rinodina maculans Müll. Arg. - Brodo (1968: 256 as Rinodina applanata), Harris (2004: 67)
- Rinodina oxydata (A. Massal.) A. Massal. - Harris (2004: 67)
- Rinodina pachysperma H. Magn. - Brodo (1968: 257)
- Rinodina populicola H. Magn. - Harris (2004: 67)
- Rinodina subminuta H. Magn. - Harris (2004: 67)
- Rinodina tephraspis (Tuck.) Herre - Harris (2004: 67)
- Rinodina willeyi Sheard & Giralt - Harris (2004: 67)
- Ropalospora chlorantha (Tuck.) S. Ekman - Brodo (1968: 172 as Bacidia chlorantha), Harris (2004: 67), Hauck et al. (2005: 5)
- Ropalospora lugubris (Sommerf.) Poelt - Thomson (1997: 571), Harris (2004: 67)
- Ropalospora viridis (Tønsberg) Tønsberg - Harris (2004: 67)
- Rufoplaca oxfordensis (Fink) Arup, Søchting & Frödén - Harris (2004: 57 as Caloplaca oxfordensis)
- Rusavskia elegans (Link) S. Y. Kondr. & Kärnefelt - Harris (2004: 69 as Xanthoria elegans)
- Rusavskia sorediata (vain.) S. Y. Kondr. & Kärnefelt - Harris (2004: 69 as Xanthoria sorediata)
- Santessoniella crossophylla (Tuck.) P. M. Jørg. - Harris (2004: 67)
- Sarcogyne clavus (Ram. in Lam. & DC.) Kremp. - Brodo (1968: 204), Thomson (1997: 577), Harris (2004: 67)
- Sarcogyne hypophaea (Nyl.) Arnold - Brodo (1968: 205 erroneously as Sarcogyne privigna), Harris (2004: 67 erroneously as Sarcogyne privigna)
- Sarcogyne regularis Körb. - Thomson (1997: 579), Harris (2004: 67)
- Sarcogyne similis H. Magn. - Harris (2004: 67)
- Sarcopyrenia cylindrospora (P. Crouan & H. Crouan) M. B. Aguirre - Harris (2004: 67)
- Schaereria cinereorufa (Schaer.) Th. Fr. - Lowe (1939: as Lecidea rugosa Type), Thomson (1997: 582), Harris (2004: 62 as Lecidea rugosa)
- Schaereria fuscocinerea (Nyl.) Clauzade & Roux - Harris (2004: 67)
- Sclerophora nivea (Hoffm.) Tibell - Harris (2004: 68)
- Scoliciosporum chlorococcum (Stenhammar) Vezda - Brodo (1968: 173 as Bacidia chlorococca), Harris (2004: 68)
- Scoliciosporum umbrinum (Ach.) Bausch - Brodo (1968: 176 sub Bacidia umbrina), Thomson (1997: 585), Harris (2004: 68)
- Scytinium dactylinum (Tuck.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 63 as Leptogium dactylinum)
- Scytinium fragrans (Sm.) Ach. - Harris (2004: 60 as Collema fragrans)
- Scytinium juniperinum (Tuck.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 63 as Leptogium juniperinum)
- Scytinium lichenoides (L.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 257 as Leptogium lichenoides), Harris (2004: 63 as Leptogium lichenoides)
- Scytinium subtile (Schrad.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 259 as Leptogium minutissimum), Harris (2004: 63 as Leptogium subtile)
- Scytinium tenuissimum (Dicks.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 264 as Leptogium tenuissimum), Harris (2004: 63 as Leptogium tenuissimum)
- Scytinium teretiusculum (Wallr.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 63 as Leptogium teretiusculum)
- Segestria lectissima Fr. - Harris (2004: 68)
- Solorina saccata (L.) Ach. - Brodo (1968: 163), Thomson (1984: 390), Harris (2004: 68)
- Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén - Harris (2004: 57 as Caloplaca subsoluta)
- Staurothele drummondii (Tuck.) Tuck. - Thomson (1997: 595), Harris (2004: 68)
- Staurothele fissa (Tayler) Zwackh - Thomson (1997: 596), Harris (2004: 68)
- Stereocaulon condensatum Hoffm. - Harris (2004: 68)
- Stereocaulon dactylophyllum Flörke - Thomson (1984: 410), Harris (2004: 68)
- Stereocaulon glaucescens Tuck. var. caespitosulum (Nyl.) I. M. Lamb - Harris (2004: 68)
- Stereocaulon paschale (L.) Hoffm. - Harris (2004: 68)
- Stereocaulon pileatum Ach. - Thomson (1984: 419), Harris (2004: 68)
- Stereocaulon saxatile H. Magn. - Brodo (1968: 178), Thomson (1984: 423), Harris (2004: 68)
- Stereocaulon subcoralloides (Nyl.) Nyl. - Harris (2004: 68)
- Stereocaulon tennesseense H. Magn. var. nigrofastigiatum I. M. Lamb - Harris (2004: 68)
- Stereocaulon tomentosum Fr. - Harris (2004: 68)
- Sticta beauvoisii Delise - Harris (2004: 68)
- Sticta fuliginosa (Hoffm.) Ach. - Harris (2004: 68)
- Sticta sylvatica (Huds.) Ach. - Harris (2004: 68)
- Stictis urceolatum (Ach.) Gilenstam - Harris (1987: 4 as Conotrema urceolatum), Harris (2004: 60 as Conotrema urceolatum)
- Strigula americana R. C. Harris - Harris (2004: 68)
- Strigula jamesii (Swinscow) R. C. Harris - Harris (2004: 68)
- Strigula stigmatella (Ach.) R. C. Harris - Harris (2004: 68)
- Teloschistes chrysophthalmus (L.) Beltr. - Brodo (1968: 252), Harris (2004: 68)
- Teloschistes flavicans (Sw.) Norm. - Brodo (1968: 253), Harris (2004: 68)
- Tephromela atra (Huds.) Hafellner - Brodo (1968: 213 sub Lecanora atra), Harris (2004: 68)
- Thamnolia subuliformis (Ehrh.) W. L. Culb. - Thomson (1984: 438), Harris (2004: 68)
- Thelenella humilis R. C. Harris - Harris (xx: xx Type), Harris (2004: 68)
- Thelidium decipiens (Nyl.) Kremp. - Harris (2004: 68)
- Thelidium zwackhii (Hepp) A. Massal. - Harris (2004: 68)
- Thelocarpon intermediellum Nyl. - Harris (2004: 68)
- Thrombium epigaeum (Pers.) Wallr. - Harris (2004: 68)
- Thyrea confusa Henssen - Harris (2004: 68)
- Toninia squalescens (Nyl.) Th. Fr. - Lowe (xx: xx as Lecidea subramosaType), Harris (2004: 62 as Lecidea subramosa)
- Trapelia coarctata (Turner ex Sm. & Sow.) M. Choisy - Brodo (1968: 165 sub Lecidea coarctata), Thomson (1997: 621), Harris (2004: 68)
- Trapelia corticola Coppins & P. James - Harris (2004: 68)
- Trapelia glebulosa (Sm.) J. R. Laundon - Harris (2004: 68 as Trapelia involuta)
- Trapelia obtegens (Th. Fr.) Hertel - Lowe (1939 as Lecidea), Harris (2004: 68)
- Trapelia placodioides Coppins & P. James - Harris (2004: 68)
- Trapeliopsis flexuosa (Fr.) Coppins & James - Brodo (1968: 165 sub Lecidea aeruginosa), Thomson (1997: 623), Harris (2004: 68)
- Trapeliopsis gelatinosa (Flörke) Coppins & P. James - Harris (2004: 68)
- Trapeliopsis granulosa (Hoffm.) Lumbsch - Brodo (1968: 168 as Lecidea granulosa), Thomson (1997: 624), Harris (2004: 68)
- Trapeliopsis viridescens (Schrad.) Coppins & James - Brodo (1968: 171 as Lecidea viridescens), Thomson (1997: 625), Harris (2004: 68)
- Tremolecia atrata (Ach.) Hertel - Harris (2004: 68)
- Pseudosagedia cestrensis (Tuck. ex E. Michener) R. C. Harris - Harris (2004: 68 as Trichothelium cestrense)
- Pseudosagedia chlorotica (Ach.) Hafellner & Kalb - Harris (2004: 68 as Trichothelium chloroticum)
- Trypethelium virens Tuck. ex E. Michener - Brodo (1968: 156), Harris (2004: 68)
- Tuckermanella fendleri (Nyl.) Essl. - Brodo (1968: 238 sub Cetraria fendleri), Harris (2004: 68 as Tuckermanella fendleri)
- Tuckermannopsis americana (Spreng.) Hale - Thomson (1984: 81 as Cetraria halei), Harris (2004: 68)
- Tuckermannopsis ciliaris (Ach.) Gyelnik - Brodo (1968: 238 as Cetraria ciliaris), Harris (2004: 68)
- Tuckermannopsis orbata (Nyl.) M. J. Lai - Harris (2004: 68)
- Tuckermannopsis sepincola (Ehrh.) Hale - Thomson (1984: 94 as Cetraria sepincola), Harris (2004: 68)
- Umbilicaria americana Poelt & T. H. Nash - Harris (2004: 68)
- Umbilicaria deusta (L.) Baumg. - Thomson (1984: 449), Harris (2004: 68)
- Umbilicaria hirsuta (Westr.) Hoffm. - Harris (2004: 68)
- Umbilicaria hyperborea (Ach.) Hoffm. var. hyperborea - Thomson (1984: 453), Harris (2004: 69)
- Umbilicaria lyngei Schol. - Thomson (1984: 28 as Agyrophora lyngei)
- Umbilicaria mammulata (Ach.) Tuck. - Brodo (1968: 203), Harris (2004: 69)
- Umbilicaria muehlenbergii (Ach.) Tuck. - Brodo (1968: 204), Thomson (1984: 26 as Actinogyra muehlenbergii), Harris (2004: 69)
- Umbilicaria polyphylla (L.) Baumg. - Thomson (1984: 457)
- Umbilicaria proboscidea (L.) Schrad. - Thomson (1984: 458), Harris (2004: 69)
- Umbilicaria torrefacta (Lightf.) Schrad. - Thomson (1984: 459), Harris (2004: 69)
- Umbilicaria vellea (L.) Ach. - Thomson (1984: 460)
- Umbilicaria virginis Schaer. - Thomson (1984: 290 as Omphalodiscus virginis), Brodo et al. (2001: ), Harris (2004: 69)
- Usnea amblyoclada (Müll. Arg.) Zahlbr. - Harris (2004: 69)
- Usnea cavernosa Tuck. - Thomson (1984: 463), Harris (2004: 69)
- Usnea ceratina Ach. - Harris (1987: 4), Harris (2004: 69)
- Usnea dasaea Stirt. - Harris (2004: 69)
- Usnea dasypoga (Ach.) Röhl. - Thomson (1984: 465)
- Usnea filipendula Stirt. - Harris (2004: 69)
- Usnea hirta (L.) Weber ex F. H. Wigg. - Thomson (1984: 466), Harris (2004: 69)
- Usnea lapponica Vain. - Harris (2004: 69)
- Usnea longissima Ach. - Brodo (1968: 244), Harris (2004: 69)
- Usnea mutabilis Stirt. - Brodo (1968: 245), Harris (2004: 69)
- Usnea rubicunda Stirt. - Harris (1987: 4), Harris (2004: 69 as Usnea pensylvanica)
- Usnea strigosa (Ach.) A. Eaton subsp. strigosa - Brodo (1968: 245), Harris (2004: 69)
- Usnea subfloridana Stirt. - Thomson (1984: 469), Harris (2004: 69)
- Usnea subfusca Stirt. - Harris (2004: 69)
- Usnea subgracilis Motyka - Harris (2004: 69 as Usnea hesperina)
- Usnea subscabrosa Nyl. ex Motyka - Harris (2004: 69)
- Usnea trichodea Ach. - Brodo (1968: 246), Harris (2004: 69)
- Usnocetraria oakesiana (Tuck.) M. J. Lai & C. J. Wei - Harris (2004: 56 as Allocetraria oakesiana)
- Vahliella leucophaea (Vahl) P. M. Jørg. - Harris (2004: 60 as Fuscopannaria leucophaea)
- Varicellaria velata (Turn.) Schmitt & Lumbsch - Brodo (1968: 211 as Pertusaria velata), Harris (2004: 65 as Pertusaria velata)
- Variolaria ophthalmiza Nyl. - Harris (2004: 65 as Pertusaria ophthalmiza)
- Variolaria pustulata (Brodo & W. L. Culb.) Lendemer, Hodkinson & R. C. Harris - Harris (2004: 63 as Loxospora pustulata)
- Variolaria trachythallina (Erichsen in Degel.) Lendemer, Hodkinson & R. C. Harris - Brodo (1968: 210 as Pertusaria trachythallina), Harris (2004: 65 as Pertusaria trachythallina)
- Variolaria waghornei (Hulting) Darb. - Dibben (1980: as Pertusaria waghornei), Harris (2004: 65 as Pertusaria waghornei)
- Verrucaria calkinsiana Servít - Harris (2004: 69)
- Verrucaria compacta (A. Massal.) Jatta - Harris (2004: 69)
- Verrucaria halizoa Leight. - Brodo (1968: 153 as Verrucaria microspora), Harris (2004: 69)
- Verrucaria hydrela Ach. - Harris (2004: 69)
- Verrucaria latebrosa Körb. - Harris (2004: 69)
- Verrucaria margacea (Wahlenb.) Wahlenb. - Harris (2004: 69)
- Verrucaria muralis Ach. - Brodo (1968: 154), Thomson (1997: 641), Harris (2004: 69)
- Verrucaria nigrescens Pers. - Brodo (1968: 154), Thomson (1997: 642), Harris (2004: 69)
- Verrucaria rupestris Schrad. - Thomson (1997: 643)
- Verrucaria silicicola Fink in Hedr. - Fink (xx: xx Type), Brodo (1968: 154), Harris (2004: 69)
- Vezdaea leprosa (P. James) Vezda - Harris (2004: 69)
- Violella fucata (Stirt.) T. Sprib. - Harris (2004: 64 as Mycoblastus fucatus), Hauck et al. (2005: 5 as Mycoblastus fucatus)
- Vulpicida pinastri (Scop.) J.-E. Mattsson & M. J. Lai - Thomson (1984: 93 as Cetraria pinastri), Harris (2004: 69)
- Vulpicida viridis (Halsey) J.-E. Mattsson & M. J. Lai - Brodo (1968: 240 sub Cetraria viridis), Harris (2004: 69)
- Wahlenbergiella mucosa (Wahlenb.) Gueidan & Thüs - Thomson (1997: 641 as Verrucaria mucosa)
- Wahlenbergiella striatula (Wahlenb.) Gueidan & Thüs - Thomson (1997: 645 as Verrucaria striatula)
- Xanthocarpia feracissima (H. Magn.) Frödén, Arup & Søchting - Brodo (1968: 250 as Caloplaca feracissima), Harris (2004: 57 as Caloplaca feracissima)
- Xanthomendoza fallax (Hepp ex Arnold) Søchting, Kärnefelt & S. Y. Kondr. - Brodo (1968: 251 as Xanthoria fallax), Thomson (1984: 486 as Xanthoria fallax), Harris (2004: 69 as Xanthoria fallax)
- Xanthomendoza fulva (Hoffm.) Søchting, Kärnefelt & S. Y. Kondr. - Harris (2004: 69 as Xanthoria fulva)
- Xanthomendoza hasseana (Räsänen) Søchting, Kärnefelt & S. Y. Kondr. - Harris (2004: 69 as Xanthoria hasseana)
- Xanthomendoza ulophyllodes Räsänen Søchting, Kärnefelt & S. Y. Kondr. - Harris (2004: 69 as Xanthoria ulophyllodes)
- Xanthoparmelia angustiphylla (Gyeln.) Hale - Harris (2004: 69)
- Xanthoparmelia conspersa (Ehrh. ex Ach.) Hale - Brodo (1968: 228 sub Parmelia conspersa), Harris (2004: 69)
- Xanthoparmelia cumberlandia (Gyeln.) Hale - Harris (2004: 69)
- Xanthoparmelia dierythra (Hale) Hale - Harris (2004: 69)
- Xanthoparmelia novomexicana (Gyeln.) Hale - Brodo (1968: 227 as Parmelia arseneana)
- Xanthoparmelia plittii (Gyeln.) Hale - Brodo (1968: 233 as Parmelia plittii), Harris (2004: 69)
- Xanthoparmelia stenophylla (Ach.) Ahti & D. Hawksw. - Brodo (1968: 234 as Parmelia stenophylla), Harris (2004: 69 as Xanthoparmelia somloensis)
- Xanthoparmelia subramigera (Gyeln.) Hale - Harris (2004: 69)
- Xanthoparmelia tasmanica (Hook. f. & Taylor) Hale - Brodo (1968: 236 as Parmelia tasmanica), Harris (2004: 69)
- Xanthoparmelia viriduloumbrina (Gyeln.) Lendemer - Thomson (1984: 480 erroneously as Xanthoparmelia taractica)
- Xanthoria parietina (L.) Beltr. - Brodo (1968: 251), Harris (2004: 69)
- Xylographa opegraphella Nyl. ex Rothr. - Brodo (1968: 158)
- Xylopsora friesii (Ach. in Lilj.) Bendiksby & Timdal - Thomson (1997: 247 as Hypocenomyce friesii), Harris (2004: 61 as Hypocenomyce friesii), Hauck et al. (2005: 5 as Hypocenomyce friesii)