Checklist of lichens of North Carolina (USA)
Preliminary version 1 December 2016
- Acarospora dispersa H. Magn. Perlmutter & Lendemer (2008: 71)
- Acarospora fuscata (Schrad.) Arnold - Brodo et al. (2001: 146)
- Acarospora glaucocarpa (Ach.) Körb. - Brodo et al. (2001: 147)
- Acarospora obpallens (Nyl. ex Hasse) Zahlbr. Knudsen (2006: 9), Lendemer & Tripp (2008: 59)
- Acrocordia megalospora (Fink) R.C. Harris Harris & Ladd (2005: 45)
- Ahtiana aurescens (Tuck. ex Riddle) Goward & A. Thell - Culberson (1958: 26 as Cetraria aurescens), Perry & Moore (1969: 149 as Cetraria aurescens), Dey (1978: 45 as Cetraria aurescens), Heiman (1996: 57 as Tuckermannopsis aurescens), Perlmutter (2006: 288)
- Alectoria fallacina Motyka - Dey (1978: 73)
- Alectoria sarmentosa (Ach.) Ach. - Degelius (1941: )
- Amandinea langloisii Marbach - Lendemer & Yahr (2004: 128)
- Amandinea milliaria (Tuck.) P. May & Sheard - Lendemer & Yahr (2004: 127)
- Amandinea polyspora (Willey) E. Lay & P. May in P. May & Sheard - Lendemer & Yahr (2004: 128)
- Amandinea punctata (Hoffm.) Coppins & Schneider - Culberson (1958: 26 as Buellia punctata), Lendemer & Yahr (2004: 120), Perlmutter (2006: 290)
- Anaptychia crinalis (Schaer.) Vezda - NatureServe (2005: erroneously as Anaptychia setifera)
- Anaptychia palmulata (Michx.) Vain. - Culberson (1966: 477), Perry & Moore (1969: 148), Dey (1978: 83), Schmitt & Slack (1990: 264), Heiman (1996: 53), McCune et al. (1997: 150), DePriest (2001: 8), Perlmutter (2006: 290), Esslinger (2007: 794), Lendemer & Tripp (2008: 59)
- Anisomeridium biforme (Borrer) R. C. Harris - Lendemer & Yahr (2004: 122)
- Anisomeridium polypori (Ellis & Everh.) M.E. Barr - Harris (1973: as Arthopyrenia willeyana), Schmitt & Slack 1990: 264 as Anisomeridium nyssaegenum)
- Anisomeridium subprostans (Nyl.) R.C. Harris - Degelius (1941: as Arthopyrenia cf. subprostans), Perlmutter & Lendemer (2008: 71)
- Anthracothecium nanum (Zahlbr.) R.C. Harris - Lendemer & Yahr (2004: 131), Lendemer & Tripp (2008: 59)
- Anzia americana Yoshim. & Sharp - NatureServe (2005: )
- Anzia colpodes (Ach.) Stizenb. - Perry & Moore (1969: 148), Dey (1978: 72), Schmitt & Slack (1990: 264), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 161), DePriest (2001: 8), Perlmutter (2006: 287), Lendemer & Tripp (2008: 59)
- Anzia ornata (Zahlbr.) Asah. - Yoshimura & Sharp (1969: 110), NatureServe (2005: )
- Arctoparmelia incurva (Pers.) Hale - Dey (1978: 58 as Parmelia incurva)
- Arthonia albovirescens Nyl. - Lendemer & Yahr (2004: 120)
- Arthonia biseptata Degel. - Degelius (1941: )
- Arthonia caesia (Flot.) Körb. - Brodo et al. (2001: 164)
- Arthonia cinnabarina (DC.) Wallr. - Brodo et al. (2001: 164), Perlmutter & Lendemer (2008: 71)
- Arthonia diffusa Nyl. Harris & Ladd (2005: 56)
- Arthonia dryadum R.C. Harris & Ladd ined. - Perlmutter & Lendemer (2008: 71)
- Arthonia quintaria Nyl. Perlmutter (2006: 285), Perlmutter & Lendemer (2008: 71)
- Arthonia rubella (Fée) Nyl. - Schmitt & Slack (1990: 264), Lendemer & Yahr (2004: 122), Perlmutter (2006: 285), Perlmutter & Lendemer (2008: 71)
- Arthonia spadicea Leight. - Schmitt & Slack (1990: 264)
- Arthopyrenia cinchonae (Ach.) Müll. Arg. - Lendemer & Yahr (2004: 128), Perlmutter & Lendemer (2008: 71), Lendemer & Tripp (2008: 59 erroneously as Anisomeridium cinchoneae typing error)
- Arthopyrenia degelii R.C. Harris - Harris (1995: 76)
- Arthopyrenia lyrata R.C. Harris Tucker & Harris (1980: 6)
- Arthopyrenia plumbaria (Stizenb.) R. C. Harris - Fink (1935: 58 as Pyrenula herreri)
- Arthotheliopsis floridensis Lücking & W.R. Buck Lückig et al. (2007: 631)
- Arthothelium interveniens (Nyl.) Zahlbr. - Lendemer & Yahr (2004: 120)
- Arthothelium runanum (A. Massal.) Körb. - Schmitt & Slack (1990: 264)
- Arthothelium spectabile A. Massal. - Schmitt & Slack (1990: 264), Perlmutter (2006: 285), Lendemer (2007b: 98), Perlmutter & Lendemer (2008: 71)
- Arthothelium taediosum auct. Amer. - Lendemer & Yahr (2004: 123), Perlmutter (2006: 285), Lendemer & Tripp (2008: 59), Perlmutter & Lendemer (2008: 71)
- Aspicilia cinerea (L.) Körb. - Brodo et al. (2001: 168)
- Aspilidea myrinii (Fr.) Hafellner Culberson (1961: 266 as Lecanora myrini)
- Aulaxina quadrangula (Stirt.) R. Sant. - Lendemer & Tripp (2008: 60)
- Bacidia diffracta S. Ekman - Ekman (1996: )
- Bacidia helicospora S. Ekman - Lendemer & Tripp (2008: 60)
- Bacidia heterochroa (Müll. Arg.) Zahlbr. - Lendemer & Yahr (2004: 118), Perlmutter (2006: 291), Perlmutter & Lendemer (2008: 71)
- Bacidia lobarica Printzen & Tønsberg - Printzen & Tønsberg (2007: 487 Type in Bergen, Norway BG)
- Bacidia polychroa (Fr.) Körb. - Lendemer & Yahr (2004: 131)
- Bacidia rubella (Hoffm.) A. Massal. - Brodo et al. (2001: 171), DePriest (2001: 8)
- Bacidia schweinitzii (Fr. ex Michener in Darlington) Schneider Culberson (1961: 266), Schmitt & Slack (1990: 264), Brodo et al. (2001: 173), DePriest (2001: 8), Lendemer & Yahr (2004: 120), Perlmutter (2006: 291), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 71)
- Bacidia suffusa (Fr.) A. Schneider - Ekman (1996: ), Perlmutter & Lendemer (2008: 71)
- Bacidina arnoldiana (Körb.) Wirth & Vezda - Ekman (1996: )
- Bacidina egenula (Nyl.) Vezda - Lendemer & Yahr (2004: 122), Perlmutter (2007: 27)
- Bactrospora lamprospora (Nyl.) Lendemer - Lendemer & Yahr (2004: 131), Perlmutter (2007a: 117)
- Bactrospora mesospora R.C. Harris - Lendemer & Yahr (2004: 123)
- Baculifera curtisii (Tuck.) Marbach - Tuckerman (1858: 430 as Gyrostomum curtisii Type in FH), Marbach (2000: 119)
- Baeomyces rufus (Huds.) Rebent. - Dey (1978: 27), Brodo et al. (2001: 174)
- Bathelium carolinianum (Tuck.) R.C. Harris - Lendemer & Yahr (2004: 122)
- Biatora appalachensis Printzen & Tønsberg - Printzen & Tønsberg (2004: )
- Biatora helvola Körb. ex Hellborn - Degelius (1941: )
- Biatora longispora (Degel.) Lend. & Printzen - Printzen & Tønsberg (2004: ), Lendemer & Tripp (2008: 60)
- Biatora pontica Printzen & Tønsberg - Printzen & Tønsberg (2003: )
- Biatora printzenii Tønsberg - Tønsberg (2002: 122), Lendemer & Tripp (2008: 60)
- Biatora pycnidiata Printzen & Tønsberg - Printzen & Tønsberg (2004: )
- Biatora vernalis (L.) Fr. Lendemer (2007b: 98 First record)
- Brigantiaea leucoxantha (Spreng.) R. Sant. & Hafellner - Fink (1935: 235 as Lopadium leucoxanthum), Brodo et al. (2001: 177), Lendemer & Yahr (2004: 131), Perlmutter (2006: 292), Lendemer (2007a: 72), Perlmutter (2007a: 117), Lendemer & Tripp (2008: 60)
- Bryoria bicolor (Ehrh.) Brodo & D. Hawksw. - Perry & More (1969: 148 as Alectoria bicolor), Dey (1978: 73 as Alectoria bicolor), McCune et al. (1997: 150)
- Bryoria furcellata (Fr.) Brodo & D. Hawksw. - Perry & More (1969: 148 as Alectoria nidulifera), Dey (1978: 74 as Alectoria nidulifera), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 181), Lendemer & Tripp (2008: 60)
- Bryoria nadvornikiana (Gyelnik) Brodo & D. Hawksw. - Perry & More (1969: 148 as Alectoria nadvornikiana), Dey (1978: 74 as Alectoria nadvornikiana)
- Bryoria tenuis (E. Dahl) Brodo & D. Hawksw. - Dey (1978: 75 as Alectoria tenuis)
- Bryoria trichodes subsp. americana (Mot.) Brodo & D. Hawksw. - Perry & More (1969: 148 as Alectoria americana), Dey (1978: 73 as Alectoria americana), Brodo et al. (2001: 185)
- Buellia curtisii (Tuck.) Imshaug - Schmitt & Slack (1990: 264), Lendemer & Yahr (2004: 120, 122), Perlmutter (2006: 290 as Baculifera curtisii), Perlmutter & Lendemer (2008: 71)
- Buellia dialyta (Nyl.) Tuck.- Fink (1935: 369), Schmitt & Slack (1990: 264)
- Buellia elizae (Tuck.) Tuck. - Schmitt & Slack (1990: 264), Lendemer & Yahr (2004: 118), Lendemer & Tripp (2008: 60)
- Buellia lepidastra (Tuck.) Tuck - Bungartz & Nash (2004: )
- Buellia imshaugiana R.C. Harris - Lendemer & Yahr (2004: 123)
- Buellia japonica (Tuck.) Tuck. - Lendemer & Tripp (2008: 60)
- Buellia maculata Bungartz - Bungartz & Nash (2004: 454), Perlmutter (2006: 290), Lendemer (2007b: 98), Perlmutter & Lendemer (2008: 71)
- Buellia mamillana (Tuck.) W.A. Weber - Fink (1935: 377 as Rinodina thomae), Perlmutter (2006: 290)
- Buellia spuria (Schaer.) Anzi - Brodo et al. (2001: 188), Perlmutter (2006: 290), Lendemer & Tripp (2008: 60)
- Buellia stillingiana Steiner - Culberson (1958: 26), Schmitt & Slack (1990: 264) Brodo et al. (2001: 188), Lendemer & Yahr (2004: 118), Perlmutter (2006: 290), Perlmutter (2007a: 117), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 71)
- Buellia vernicoma (Tuck.) Tuck. - Imshaug (1951: ), Leuckert & Mathey (1975: 481), Perlmutter (2006: 290 as Gassicurtia vermicoma), Lendemer & Tripp (2008: 60)
- Buellia wheeleri R.C. Harris - Lendemer & Yahr (2004: 131)
- Bulbothrix confoederata (W. L. Culb.) Hale - Culberson (1961: 169 as Parmelia confoederata Type in Durham, North Carolina, USA DUKE), Brodo et al. (2001: 189), Lendemer & Yahr (2004: 119)
- Bulbothrix goebelii (Zenker) Hale - McCune et al. (1997: 150), Lendemer & Yahr 2004: 119), Perlmutter (2006: 288)
- Bulbothrix isidiza (Nyl.) Hale - Dey (1987: ), Lendemer & Yahr (2004: 122)
- Byssoloma leucoblepharum (Nyl.) Vain. - Lendemer & Yahr (2004: 119), Perlmutter (2006: 288), Lendemer & Tripp (2008: 60)
- Byssoloma meadii (Tuck.) Ekman Harris (1995: 30 as B. pubescens), Brodo et al. (2001: 192), Lendemer & Yahr (2004: 119), Lendemer & Tripp (2008: 60)
- Byssoloma pubescens Vezda ex R.C. Harris - Harris (1995: 30)
- Byssoloma subdiscordans (Nyl.) P. James - Lendemer & Yahr (2004: 119), Perlmutter & Lendemer (2008: 71)
- Calicium abietinum Pers. - Lendemer & Yahr (2004: 124), Perlmutter (2006: 287)
- Calicium hyperelloides Nyl. - Lendemer & Yahr (2004: 128)
- Calicium trabinellum (Ach.) Ach. - Lendemer & Yahr (2004: 128)
- Caloplaca camptidia (Tuck.) Zahlbr. - Tuckerman (1862: 403 Type), Rudolf (1955: ), Wetmore (1994: 820 Lectotype in Chicago, USA FH), Perlmutter (2006: 292)
- Caloplaca cerina (Ehrh. ex Hedwig) Th. Fr. - Brodo et al. (2001: ), Perlmutter (2006: 292)
- Caloplaca chryophthalma Degel. - Lendemer & Yahr (2004: 124)
- Caloplaca cinnabarina (Ach.) Zahlbr. - Wetmore & Kärnefelt (1999: ), Perlmutter (2006: 292)
- Caloplaca citrina (Hoffm.) Th. Fr. - Wetmore (2001: 7), Brodo et al. (2001: 198), Perlmutter (2006: 292), Perlmutter (2007: 27)
- Caloplaca conversa (Kremp.) Jatta - Wetmore (1994: )
- Caloplaca feracissima H. Magn. - Perlmutter (2006: 292), Perlmutter (2007: 27)
- Caloplaca ferruginea (Hudson) Th. Fr. - USGS (2005: )
- Caloplaca flavorubescens (Huds.) J.R. Laundon Lendemer (2007: 99 First record)
- Caloplaca flavovirescens (Wulfen) Dalla Torre & Sarnth. - Brodo et al. (2001: 201), DePriest (2001: 8), Perlmutter (2006: 292), Perlmutter & Lendemer (2008: 71)
- Caloplaca holocarpa (Hoffm. ex Ach.) M. Wade - Perlmutter (2006: 292)
- Caloplaca pollinii (A. Massal.) Jatta - Wetmore (1994: ), Perlmutter (2006: 292)
- Caloplaca quercicola H. Magn. - Rudolf (1955: ), Perlmutter (2006: 292)
- Caloplaca sideritis (Tuck.) Zahlbr. - Wetmore (1996: 308)
- Caloplaca subsoluta (Nyl.) Zahlbr. - Wetmore (2003: 106), Perlmutter (2007: 27)
- Caloplaca xanthostigmoidea (Räsänen) Zahlbr. - Wetmore (2001: 9)
- Candelaria concolor (Dicks.) Stein - Perry & Moore (1969: 148), Dey (1978: 82), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 205), DePriest (2001: 8), Perlmutter (2006: 288), Perlmutter & Lendemer (2008: 71)
- Candelaria fibrosa (Fr.) Müll. Arg. - Perry & Moore (1969: 148), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 206), Perlmutter (2006: 288)
- Candelariella efflorescens R.C. Harris & W.R. Buck - Brodo et al. (2001: 207), Perlmutter (2006: 288)
- Candelariella reflexa (Nyl.) Lettau - DePriest (2001: 8), Perlmutter & Lendemer (2008: 71)
- Candelariella vitellina (Hoffm.) Müll. Arg. - USGS (2005: )
- Canoparmelia amabilis Heiman & Elix - Heiman & Elix (1999: 163), Lendemer & Yahr (2004: 119)
- Canoparmelia amazonica (Nyl.) Elix & Hale - Lendemer & Yahr (2004: 127)
- Canoparmelia caroliniana (Nyl.) Elix & Hale Culberson (1957: 445 as Parmelia caroliniana), Culberson (1958: 26 as Parmelia caroliniana), Perry & Moore (1969: 152 as Parmelia caroliniana), Schmitt & Slack (1990: 264), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 211), DePriest (2001: 8), Lendemer & Yahr (2004: 119), Perlmutter (2006: 288), Perlmutter (2007: 26), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 71)
- Canoparmelia crozalsiana (B. de Lesd. ex Harm.) Elix & Hale - Heiman (1996: 53), McCune et al. (1997: 150), Perlmutter (2006: 289)
- Canoparmelia texana (Tuck.) Elix & Hale - Brodo et al. (2001: 212), Perlmutter (2006: 289)
- Cetradonia linearis (Evans) J.-C. Wei & Ahti - Evans (1947: 49 as Cladonia linearis), Perry & More (1969: 150 as Cladonia linearis), Dey (1978: 39 as Gymnoderma lineare), Heiman (1996: 54 as Gymnoderma lineare), Brodo et al. (2001: 329 as Gymnoderma lineare)
- Cetraria aculeata (Schreb.) Fr. - Mozingo (1954: 31), Brodo et al. (2001: 215)
- Cetraria arenaria Kärnefelt - Heiman (1996: 53)
- Cetraria islandica (L.) Ach. - Mozingo (1954: 31), Perry & Moore (1969: 149), Dey (1978: 45)
- Cetrelia cetrarioides (Del. ex Duby) W.L. Culb. & C.F. Culb. - Dey (1978: 47), Schmitt & Slack (1990: 264), McCune et al. (1997: 150)
- Cetrelia chicitae (W. Culb.) W.L. Culb. & C.F. Culb. - Perry & Moore (1969: 149), Dey (1978: 48), Schmitt & Slack (1990: 264), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 220), DePriest (2001: 8), Perlmutter (2006: 289)
- Cetrelia olivetorum (Nyl.) W.L. Culb. & C.F. Culb. - Perry & Moore (1969: 149), Dey (1978: 48), Schmitt & Slack (1990: 264), Heiman (1996: 53), McCune et al. (1997: 150), DePriest (2001: 8)
- Cetrariella delisei (Bory ex Schaer.) Kärnefelt & A. Thell - Fink (1935: )
- Chaenotheca brunneola (Ach.) Müll. Arg. Harris (1995: 23), Brodo et al. (2001: 222), Lendemer & Yahr (2004: 131)
- Chaenothecopsis debilis (Turner & Borrer ex Smith & Sowerby) Tibell - Lendemer & Yahr (2004: 124)
- Chaenothecopsis pusilla (Ach.) A.F.W. Schmidt - Sullivan (1996: )
- Chrysothrix candelaris (L.) J.R. Laundon - Schmitt & Slack (1990: 264), Brodo et al. (2001: 223), DePriest (2001: 8), Lendemer & Yahr (2004: 124), Perlmutter (2006: 285)
- Chrysothrix chamaecyparicola Lendemer - Lendemer (xx: xx Type in New York, USA NY)
- Chrysothrix flavovirens Tønsberg s. lat. - Lendemer (2005: 49), Perlmutter (2007a: 117), Harris & Ladd (2008: 34), Perlmutter & Lendemer (2008: 71)
- Chrysothrix insulizans R.C. Harris & Ladd Harris & Ladd (2008: 36)
- Chrysothrix xanthina (Vain.) Kalb Harris & Ladd (2008: 40), Perlmutter & Lendemer (2008: 71)
- Cladonia anitae W.L. Culb. & C.F. Culb. - Culberson et al. (1982: 663 Type in DUKE)
- Cladonia apodocarpa Robbins - Keever et al. (1951: ), Heiman (1996: 53), Brodo et al. (2001: 237, Lendemer & Yahr (2004: 124), Perlmutter (2006: 287), Perlmutter & Lendemer (2008: 71)
- Cladonia arbuscula (Wallr.) Rabenh. - Oosting & Anderson (1937: 284 as Cladonia sylvatica), Perry & Moore (1969: 149), Dey (1978: 30), Heiman (1996: 53 as Cladina arbuscula), Brodo et al. (2001: 224 as Cladina arbuscula), Perlmutter (2006: 287), Perlmutter (2007: 26)
- Cladonia atlantica A. Evans - Perlmutter (2006: 287)
- Cladonia bacillaris (Ach.) Nyl. - Keever et al. (1951: ), Johnsen (1959: 39), Perry & Moore (1969: 149), Dey (1978: 31), Heiman (1996: 53), McCune et al. (1997: 150), Perlmutter (2005: 56 as Cladonia macilenta var. bacillaris), Perlmutter (2006: 287 as Cladonia macilenta var. bacillaris)
- Cladonia beaumontii (Tuck.) Vain. - Fink (1935: 261), Brodo et al. (2001: 239), Perlmutter (2006: 287)
- Cladonia botrytes (K. Hagen) Wild. - Perlmutter (2006: 287)
- Cladonia caespiticia (Pers.) Flörke - Oosting & Anderson (1937: 284), Perry & Moore (1969: 149), Dey (1978: 31), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 242), DePriest (2001: 8), Perlmutter (2006: 287), Perlmutter (2007: 27), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 71)
- Cladonia caroliniana Schwein. ex Tuck. - Tuckerman (1858: 427 Type in FH-Tuck), Fink (1935: 254), Oosting & Anderson (1939: 754), Evans (1947: 35), Heiman (1996: 53), Brodo et al. (2001: 243), Lendemer & Yahr (2004: 124), Perlmutter (2006: 287)
- Cladonia cenotea (Ach.) Schaer. - Perry & Moore (1969: 149)
- Cladonia cervicornis (Ach.) Flot. - Heiman (1996: 53)
- Cladonia chlorophaea (Flörke) Spreng. - Perry & Moore (1969: 149), Culberson et al. (1977: 72), Dey (1978: 31, 32 as Cladonia clavulivera), Schmitt & Slack (1990: 264), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 247), Lendemer & Yahr (2004: 124), Perlmutter (2006: 287)
- Cladonia coccifera (L.) Willd. - Oosting & Anderson (1937: 283), Lendemer & Tripp (2008: 60)
- Cladonia coniocraea (Flörke) Spreng. - Oosting & Anderson (1937: 284), Culberson (1958: 26), Johnsen (1959: 39), Perry & Moore (1969: 149), Dey (1978: 32), Schmitt & Slack (1990: 264), McCune et al. (1997: 150), McAlister (1997: 118), Brodo et al. (2001: 247), Lendemer & Yahr (2004: 120), Perlmutter (2006: 287)
- Cladonia crispata (Ach.) Flot. - Brodo et al. (2001: 249)
- Cladonia cristatella Tuck. - Keever et al. (1951: ), Robinsion (1959: 256), Perry & Moore (1969: 149), Dey (1978: 32), McCune et al. (1997: 150), Brodo et al. (2001: 250), DePriest (2001: 8), Lendemer & Yahr (2004: 124), Perlmutter (2006: 287), Perlmutter & Lendemer (2008: 71)
- Cladonia cryptochlorophaea Asah. - Perry & Moore (1969: 149), Culberson et al. (1977: 72), Dey (1978: 32), Lendemer & Yahr (2004: 124), Perlmutter (2006: 287)
- Cladonia cylindrica (A. Evans) A. Evans - Heiman (1996: 53), McCune et al. (1997: 150), Perlmutter (2006: 287)
- Cladonia didyma (Fée) Vain. - Perry & Moore (1969: 149), Dey (1978: 33), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 251), Perlmutter (2006: 287), Perlmutter & Lendemer (2008: 71)
- Cladonia digitata (L.) Hoffm. - Dey (1978: 33), Brodo et al. (2001: 252), Perlmutter (2006: 287)
- Cladonia dimorphoclada Robbins in Sandstede - Sandstede (1929: Cladon. Exs. 1882 Type in Helsinki, Finland H), Ahti (1973: xx Lectotypification), Ahti (1993: 76), Brodo et al. (2001: 252), Lendemer & Yahr (2004: 124), Perlmutter (2006: 287)
- Cladonia evansii Abbayes - Evans (1947: 17), Ahti (1961: 25), Brodo et al. (2001: 224 as Cladina evansii), Lendemer & Yahr (2004: 124 as Cladina evansii), Perlmutter (2006: 287)
- Cladonia fimbriata (L.) Fr. - Oosting & Anderson (1937: 284), Perry & Moore (1969: 150), Dey (1978: 33), Heiman (1996: 53), Lendemer & Yahr (2004: 124), Perlmutter (2006: 287)
- Cladonia floerkeana (Fr.) Flörke - Oosting & Anderson (1937: 284), Perry & Moore (1969: 150), Dey (1978: 33), Brodo et al. (2001: 254), Perlmutter (2007: 26)
- Cladonia floridana Vain. - Brodo et al. (2001: 254), Lendemer & Yahr (2004: 124), Perlmutter (2006: 287)
- Cladonia furcata (Huds.) Schrad. - Oosting & Anderson (1937: 284), Perry & Moore (1969: 150), Dey (1978: 34), Schmitt & Slack (1990: 264), Heiman (1996: 53), Brodo et al. (2001: 255), Perlmutter (2006: 287)
- Cladonia gracilis (L.) Willd. - Perry & Moore (1969: 150), Dey (1978: 34), Heiman (1996: 53), Perlmutter (2006: 287)
- Cladonia grayi G. Merr. ex Sandstede - Sandstede (1929: Cladon. Exs. 1847 Type in FH), Keever et al. (1951: ), Johnsen (1959: 39), Robinson (1959: 255), Perry & Moore (1969: 150), Culberson et al. (1977: 72), Dey (1978: 34), Ahti (1993: 79 Lectotypification), Heiman (1996: 53), Perlmutter (2006: 287), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 71)
- Cladonia humilis (With.) J. R. Laundon - Culberson et al. (1977: 72 as Cladonia conista), Heiman (1996: 53)
- Cladonia incrassata Flörke - Oosting & Anderson (1937: 290), Perry & Moore (1969: 150), Dey (1978: 34), Brodo et al. (2001: 257), Lendemer & Yahr (2004: 120), Perlmutter (2006: 287)
- Cladonia leporina Fr. - Fries (1831: 243 Protolog), Oosting & Anderson (1939: 754), Evans (1947: 23), Ahti (1993: 82 Type in Uppsala, Sweden UPS Lectotypification), Brodo et al. (2001: 258), Lendemer & Yahr (2004: 124), Perlmutter (2006: 287)
- Cladonia macilenta Hoffm. - Perry & Moore (1969: 150), Dey (1978: 35), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 259), DePriest (2001: 8), Lendemer & Yahr (2004: 124), Perlmutter (2006: 287), Perlmutter & Lendemer (2008: 71)
- Cladonia mateocyatha Robbins - Robinson (1959: 255), Perry & Moore (1969: 150), Dey (1978: 35), Heiman (1996: 53), Brodo et al. (2001: 261), Perlmutter (2006: 287), Lendemer & Tripp (2008: 60)
- Cladonia merochlorophaea Asah. - Culberson et al. (1977: 72), Dey (1978: 35)
- Cladonia mitis Sandst. - Oosting & Anderson (1937: 284), Brodo et al. (2001: 225 as Cladina mitis)
- Cladonia ochrochlora Flörke - McCune et al. (1997: 150), Brodo et al. (2001: 262), DePriest (2001: 8), Lendemer & Yahr (2004: 120), Perlmutter (2006: 287), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 71)
- Cladonia pachycladodes Vain. - Evans (1947: 29), Brodo et al. (2001: ), Lendemer & Yahr (2004: 124)
- Cladonia parasitica (Hoffm.) Hoffm. - Culberson (1958: 26 as Cladonia delicata), Robinson (1959: 255 as Cladonia delicata), Dey (1978: 35), McCune et al. (1997: 150), Brodo et al. (2001: 263), DePriest (2001: 8), Perlmutter (2006: 287), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 71)
- Cladonia perlomera Kristinsson - Culberson & Kristinsson (1969: 433 Type in DUKE), Culberson et al. (1977: 72), Ahti (1993: 88)
- Cladonia petrophila R. C. Harris - Harris (1992: 329 First record), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 71)
- Cladonia peziziformis (With.) J. R. Laundon - Robinson (1959: 255 as Cladonia capitata), Perry & Moore (1969: 149 as Cladonia capitata), Dey (1978: 31 as Cladonia capitata), Heiman (1996: 53), Brodo et al. (2001: 264), Lendemer & Yahr (2004: 128), Perlmutter (2006: 287), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 71)
- Cladonia piedmontensis G. Merr. - Merril (1924: 22 Type in FH), Keever et al. (1951: ), Johnsen (1959: 39), Robinson (1959: 256), Ahti (1993: 89 Lectotypification), Perlmutter (2006: 287)
- Cladonia pleurota (Flörke) Schaer. - Perry & Moore (1969: 150), Dey (1978: 36), Heiman (1996: 53), Brodo et al. (2001: 265), Perlmutter (2006: 287)
- Cladonia polycladodes Nyl. - Evans (1947: )
- Cladonia psoromica J. P. Dey - Dey (1973: 420 Type in DUKE), Ahti (1993: 91), Perlmutter (2006: 288)
- Cladonia pyxidata (L.) Hoffm. - Oosting & Anderson (1937: 285), Perry & Moore (1969: 150), Dey (1978: 36), Heiman (1996: 53), Brodo et al. (2001: 267), Perlmutter (2006: 288)
- Cladonia ramulosa (With.) J.R. Laundon - Perry & Moore (1969: 150 as Cladonia pityrea), Dey (1978: 36 as Cladonia pityrea), McCune et al. (1997: 150), Perlmutter (2006: 288), Perlmutter & Lendemer (2008: 71)
- Cladonia rangiferina (L.) G. Web. - Oosting & Anderson (1937: 284), Perry & Moore (1969: 150), Dey (1978: 37), Heiman (1996: 53 as Cladina rangiferina), Brodo et al. (2001: 228 as Cladina rangiferina), Perlmutter (2006: 288), Lendemer & Tripp (2008: 60)
- Cladonia rappii A. Evans - Brodo et al. (2001: 268), Lendemer & Yahr (2004: 124)
- Cladonia ravenelii Tuck. - Perlmutter (2006: 288)
- Cladonia robbinsii A. Evans - Brodo et al. (2001: 269), Perlmutter (2006: 288), Perlmutter & Lendemer (2008: 71)
- Cladonia santensis Tuck. - Fink (1935: 156), Lendemer & Yahr (2004: 120)
- Cladonia sobolescens Vain. - Brodo et al. (2001: 270), Lendemer & Yahr (2004: 124), Perlmutter (2006: 288), Perlmutter & Lendemer (2008: 72)
- Cladonia squamosa (Scop.) Hoffm. - Oosting & Anderson (1937: 289), Perry & Moore (1969: 150), Dey (1978: 37), Schmitt & Slack (1990: 264), Heiman (1996: 53), McCune et al. (1997: 150), Brodo et al. (2001: 271), DePriest (2001: 8), Perlmutter (2006: 288), Lendemer & Tripp (2008: 60)
- Cladonia stellaris (Opiz) Pouzar & Vezda - Oosting & Anderson (1937: as Cladonia alpestris), Brodo et al. (2001: 228 as Cladina stellaris)
- Cladonia strepsilis (Ach.) Vain. - Oosting & Anderson (1937: 284), Oosting & Anderson (1939: 764), Johnsen (1959: 39), Robinson (1959: 255), Perry & Moore (1969: 150), Dey (1978: 37), Brodo et al. (2001: 271), Perlmutter (2006: 288)
- Cladonia stygia (Fr.) Ruoss - Ahti & Hyvonen (1985: as Cladina stygia), Brodo et al. (2001: 229 as Cladina stygia)
- Cladonia subcariosa Nyl. - Oosting & Anderson (1937: 283), Evans (1947: as Cladonia polycarpoides), Johnsen (1959: 39), Robinson (1959: 256), Perry & Moore (1969: 149 and 150 as Cladonia clavulifera), Heiman (1996: 53 as Cladonia polycarpia), Brodo et al. (2001: 266 as Cladonia polycarpoides), Perlmutter (2006: 287 as Cladonia polycarpoides, 288)
- Cladonia submitis A. Evans - Dey (1978: 38), Brodo et al. (2001: 230 as Cladina submitis), Perlmutter (2006: 288)
- Cladonia subradiata (Vain.) Sandstede - Brodo et al. (2001: 272), Lendemer & Yahr (2004: 119), Perlmutter (2006: 288), Perlmutter (2007a: 117)
- Cladonia subsetacea Robbins ex A. Evans - Evans (1947: 33 Type in Washington, USA US), Ahti (1993: 97), Lendemer & Yahr (2004: 124)
- Cladonia subtenuis (Abb.) Evans - Robinson (1959: 255), Perry & Moore (1969: 150), Dey (1978: 38), Heiman (1996: 53 as Cladina subtenuis), Brodo et al. (2001: as Cladina subtenuis), DePriest (2001: 8 as Cladina subtenuis), Lendemer & Yahr (2004: 124 as Cladina subtenuis), Perlmutter (2006: 288), Perlmutter (2007: 26), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 72)
- Cladonia subulata (L.) F.H. Wigg. - Perry & More (1969: 150 as Cladonia nemoxyna), Heiman (1996: 53), Brodo et al. (2001: 269 as Cladonia rei)
- Cladonia symphycarpia (Flörke) Fr. - Lendemer & Yahr (2004: 124)
- Cladonia tenuis (Flörke) Harm. - Oosting & Anderson (1937: 284), Oosting & Anderson (1939: 760), Perlmutter (2005: 55 as Cladonia ciliata var. tenuis), Perlmutter (2006: 287 as Cladonia ciliata var. tenuis)
- Cladonia turgida Hoffm. - Heiman (1996: 53)
- Cladonia uncialis (L.) G. Web. - Keever et al. (1951: ), Perry & Moore (1969: 150), Dey (1978: 38), Lendemer & Yahr (2004: 125), Perlmutter (2006: 288), Lendemer & Tripp (2008: 60)
- Cladonia verticillata (Hoffm.) Schaer. - Perry & Moore (1969: 150), Dey (1978: 38), Brodo et al. (2001: 245), Perlmutter (2005: 55 as Cladonia cervicornis subsp. verticillata), Perlmutter (2006: 287), Lendemer (2007a: 73), Lendemer & Tripp (2008: 60)
- Cladonia vulcanica Zoll. - Dey (1978: 38), McCune et al. (1997: 150), Perlmutter (2005: 55 as Cladonia didyma var. vulcanica), Perlmutter (2006: 287 as Cladonia didyma var. vulcanica), Lendemer & Tripp (2008: 60 as Cladonia didyma var. vulcanica)
- Coccocarpia erythroxyli (Spreng.) Swinscow & Krog Culberson (1961: 266 as Coccocarpia parmelioides), Brodo et al. (2001: 280), Lendemer & Yahr (2004: 125), Perlmutter (2006: 291)
- Coccocarpia palmicola (Spreng.) Arv. & D.J. Galloway - Perry & Moore (1969: 150 as Coccocarpia cronia), Dey (1978: 18 as Coccocarpia cronia), Becker (1980: 30 as Coccocarpia cronia), Schmitt & Slack (1990: 264), McCune et al. (1997: 150), DePriest (2001: 8), Lendemer & Yahr (2004: 125), Perlmutter (2006: 291), Lendemer & Tripp (2008: 60)
- Coenogonium luteum (Dicks.) Kalb & Lücking - Brodo et al. (2001: 302), Lendemer & Yahr (2004: 122 as Dimerella lutea), Lendemer & Yahr (2004: 119), Lendemer (2007a: 78), Perlmutter & Lendemer (2008: 72)
- Coenogonium pineti (Ach.) ined. - Degel. (1941: ), Perlmutter (2006: 286), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 72)
- Collema conglomeratum Hoffm. - Perry & Moore (1969: ), Becker et al. (1977: 96), McCune et al. (1997: 150), Perlmutter (2006: 291)
- Collema flaccidum (Ach.) Ach. - Dey (1978: 16), Heiman (1996: 54)
- Collema furfuraceum (Arnold) Du Rietz - Dey (1978: 16), Brodo et al. (2001: 285), DePriest (2001: 8)
- Collema nigrescens (Huds.) DC. - Dey (1978: 16), Schmitt & Slack (1990: 264), Heiman (1996: 54), McCune et al. (1997: 150), Brodo et al. (2001: 285), Perlmutter (2006: 291)
- Collema pulcellum Ach. - Brodo et al. (2001: 286), Lendemer & Yahr (2004: 120), Perlmutter (2006: 291-292, includes var. leucopeplum and var. subnigrescens)
- Collema subflaccidum Degel. - Perry & Moore (1969: ), Becker et al. (1977: 96 as Collema subfurvum), Dey (1978: 16), Becker (1980: 30), Schmitt & Slack (1990: 264), Heiman (1996: 54), McCune et al. (1997: 150), DePriest (2001: 8), Perlmutter (2006: 292), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 72)
- Coniarthonia kermesina (R. C. Harris, E. A. Tripp & Lendemer) Aptroot & Ertz - xx (xx: xx as Arthonia kermesina Type in New York, USA NY)
- Stictis urceolata (Ach.) Gilenstam - Brodo et al. (2001: 288 as Conotrema urceolatum)
- Cresponea premnea (Ach.) Egea & Torrente - Culberson (1972: as Lecanactis premnea), Culberson (1975: 46 as Lecanactis premnea)
- Cryptothecia rubrocincta (Ehrh.) Thor - Brodo (1994: ), Brodo et al. (2001: 291), Lendemer & Yahr (2004: 131), Perlmutter (2007a: 117)
- Cystocoleus ebeneus (Dillwyn) Thwaites Lendemer (2007b: 99 First record)
- Dactylospora inquilina (Tuck.) Hafellner - Lendemer & Tripp (2008: 60)
- Dactylospora pertusariicola (Tuck ex. Willey) Hafellner - Perlmutter & Lendemer (2008: 72)
- Dendriscocaulon intricatulum (Nyl.) Henssen - Brodo et al. (2001: 295), Lendemer & Tripp (2008: 60)
- Dendriscocaulon umhausense (Auersw.) Degel. - Degelius (1941: ), Schmitt & Slack (1990: 264)
- Dermatocarpon intestiniforme (Körb.) Hasse - Perlmutter (2006: 286)
- Dermatocarpon luridum (With.) J.R. Laundon - Heiman (1996: 54), Brodo et al. (2001: 297), DePriest (2001: 8), Perlmutter (2006: 286)
- Dermatocarpon miniatum (L.) W. Mann - Perry & Moore (1969: 151), Brodo et al. (2001: 298), Perlmutter (2006: 286)
- Dermiscellum oulochelia (Tuck.) Lendemer - Fink (1935: 102 as Opegrapha oulocheila), Lendemer (2003: 106)
- Dibaeis absoluta (Tuck.) Kalb & Gierl - Fink (1935: 242 as Baeomyces absolutus), Perry & Moore (1969: 148 as Baeomyces absolutus)
- Dibaeis baeomyces (L. F.) Rambold & Hertel - Perry & Moore (1969: 148 as Baeomyces roseus), Dey (1978: 26 as Baeomyces fungoides), Heiman (1996: 53 as Baeomyces roseus), Brodo et al. (2001: 299), Perlmutter (2006: 286), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 72)
- Dictyocatenulata alba Finley & E.F. Morris Lendemer (2007b: 99 First record), Perlmutter & Lendemer (2008: 72)
- Dimelaena oreina (Ach.) Norman - Brodo et al. (2001: 300), Perlmutter (2006: 290)
- Diploschistes actinostomus (Ach.) Zahlbr. - Fink (1935: 137), Perlmutter (2006: 286), Perlmutter (2007: 27), Lendemer & Tripp (2008: 60)
- Diploschistes muscorum (Scop.) R. Sant. - Brodo et al. (2001: 304), Perlmutter (2006: 286)
- Diploschistes scruposus (Schreber) Norman - Brodo et al. (2001: 304), Perlmutter (2006: 286), Lendemer & Tripp (2008: 60)
- Dirinaria aegialita (Afzel.) Moore - Brodo et al. (2001: 306), Lendemer & Yahr (2004: 128), Perlmutter (2006: 290)
- Dirinaria confusa Awasthi - Brodo et al. (2001: 306), Lendemer & Yahr (2004: 125), Perlmutter (2006: 290), Perlmutter (2007: 26), Perlmutter (2007a: 117)
- Dirinaria frostii (Tuck.) Hale & Culb. - Perry & Moore (1969: 154 as Physcia frostii)
- Dirinaria picta (Sw.) Clemens & Shear. - Lendemer & Yahr (2004: 128), Perlmutter (2007: 26), Perlmutter & Lendemer (2008: 72)
- Distopyrenis americana Aptroot - Aptroot (xx: xx Type in New York, USA NY)
- Dyplolabia afzelii (Ach.) A. Massal. - Fink (1935: 107 as Graphis afzelii), Brodo et al. (2001: 327 as Graphis afzelii), Lendemer & Yahr (2004: 131), Perlmutter (2006: 286), Perlmutter (2007a: 117)
- Endocarpon pallidulum (Nyl.) Nyl. Lendemer (2007c: 105)
- Endocarpon petrolepideum (Nyl.) Nyl. Lendemer (2007c: 105)
- Endocarpon pusillum Hedwig - Brodo et al. (2001: 308), Lendemer & Yahr (2004: 122)
- Enterographa lecanoroides R.C. Harris - Lendemer & Yahr (2004: 128 as Enterographa anguinella), Perlmutter (2007: 26 as Enterographa anguinella)
- Enterographa hutchinsiniae (Leight.) A. Massal. Andreas et al. (2007: 57), Lendemer (2007b: 100 Claimed to be the first record)
- Eopyrenula intermedia Coppins - DePriest (2001: 8)
- Ephebe americana Henssen - Dey (1978: 15), Lendemer & Tripp (2008: 60)
- Ephebe lanata (L.) Vain. - Brodo et al. (2001: 309), Perlmutter (2006: 293)
- Ephebe solida Bornet - NatureServe (2005: )
- Epigloea pleiospora Döbbeler - Buck & Harris (2002: )
- Erioderma mollissium (Samp.) DR. - Degelius (1941: ), Jørgensen (2000b: 673)
- Fellhanera hybrida R. C. Harris & Lendemer - Perlmutter & Lendemer (2008: 72 ined.), Harris & Lendemer (2009: 168 Type in xxx)
- Fellhanera minnisinkorum R. C. Harris & Lendemer - Perlmutter & Lendemer (2008: 72 ined.), Harris & Lendemer (2009: 169)
- Fissurina columbina (Tuck.) Staiger - Lendemer & Yahr (2004: 131)
- Fissurina cypressi (Müll. Arg.) Lendemer Lendemer & Yahr (2004: 134 as Graphina cypressi), Lendemer (2007a: 70)
- Fissurina dumastii Fée - Lendemer & Yahr (2004: 135 as Graphis dumastii)
- Fissurina illiterata (R. C. Harris) Lendemer - Lendemer & Yahr (1990: xx)
- Fissurina incrustans Fée - Lendemer & Yahr (2004: 133)
- Fissurina insidiosa C. Knight & Mitten - Lendemer & Yahr (2004: 122), Perlmutter (2007a: 117), Lendemer & Tripp (2008: 60)
- Fissurina scolecitis (Tuck.) Lendemer Lendemer (2007a: 70)
- Fissurina subnitidula (Nyl.) Staiger - Lendemer & Yahr (2004: 131)
- Flakea papillata O. E. Erikss. - Perlmutter (2006: 293), Perlmutter (2006a: 567)
- Flavoparmelia baltimorensis (Gyelnik & Fóriss) Hale - Dey (1978: 64 as Parmelia baltimorensis), Heiman (1996: 54), Brodo et al. (2001: 316), Perlmutter (2006: 289), Perlmutter & Lendemer (2008: 72)
- Flavoparmelia caperata (L.) Hale - Culberson (1958: 26 as Parmelia caperata), Perry & Moore (1969: as Parmelia caperata), Dey (1978: 64 as Parmelia caperata), Schmitt & Slack (1990: 264), Heiman (1996: 54), McAlister (1997: 118), McCune et al. (1997: 150), Brodo et al. (2001: 317), DePriest (2001: 8), Perlmutter (2006: 289), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 72)
- Flavopunctelia flaventior (Stirt.) Hale - Dey (1978: 60 as Parmelia flaventior), Heiman (1996: 54), McCune et al. (1997: 150), Brodo et al. (2001: 317)
- Fuscidea arboricola Coppins & Tønsberg - Tønsberg (1993: )
- Fuscidea cyathoides (Ach.) V. Wirth & Vezda - Fink (1935: 196 as Lecidea rivulosa)
- Fuscidea recensa (Stirt.) Hertel, V. Wirth & Vezda - Brodo et al. (2001: 321)
- Fuscopannaria ahlneri (P.M. Jørg.) P.M. Jørg. - Jørgensen (2000b: 677), Perlmutter (2006: 292)
- Fuscopannaria leucophaea (Vahl) P.M. Jørg. - McCune et al. (1997: 151 as Pannaria leucophaea), Brodo et al. (2001: 321)
- Fuscopannaria leucosticta (Tuck.) P.M. Jørg. - Perry & Moore (1969: as Pannaria leucosticta), Brodo et al. (2001: 322), Perlmutter (2006: 292), Lendemer & Tripp (2008: 60)
- Fuscopannaria sorediata P.M. Jørg. - Jørgensen (2000a: 106)
- Glyphis cicatricosa Ach. - Fink (1935: 120), Brodo et al. (2001: 324), Perlmutter (2006: 286), Lendemer & Tripp (2008: 60)
- Gomphillus americanus Essl. - Brodo et al. (2001: 325), Lendemer & Yahr (2004: 122), Perlmutter (2006: 286), Lücking et al. (2007: 639), Lendemer & Tripp (2008: 60). TYPE in US.
- Gomphillus calycioides (Duby) Nyl. - Buck (1998: ), Lücking et al. (2007: 639)
- Graphina peplophora Wirth & Hale - Lendemer & Yahr (2004: 128)
- Graphis desquamescens s. lat. Perlmutter (2007a: 117)
- Graphis desquamescens (Fée) Zahlbr. - Lendemer & Yahr (2004: 133)
- Graphis illiterata R.C. Harris - Lendemer & Yahr (2004: 128)
- Graphis inversa R.C. Harris Lendemer (2007b: 100 First record), Perlmutter & Lendemer (2008: 72)
- Graphis librata C. Knight - Lendemer & Yahr (2004: 131)
- Graphis lineola auct. - Lendemer & Yahr (2004: 119), Perlmutter (2006: 286), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 72)
- Graphis lucifica R.C. Harris - Lendemer & Yahr (2004: 125)
- Graphis rigidula Müll. Arg. - Lendemer & Yahr (2004: 135 First record for North America)
- Graphis scripta (L.) Ach. - Culberson (1958: 26), Schmitt & Slack (1990: 264), Brodo et al. (2001: 327), DePriest (2001: 8), Lendemer & Yahr (2004: 119), Perlmutter (2006: 286), Perlmutter & Lendemer (2008: 72)
- Graphis striatula (Ach.) Spreng. - Lendemer & Yahr (2004: 128), Lendemer & Tripp (2008: 60)
- Gyalecta geoica (Wahlenb. ex Ach.) Ach. - Perlmutter (2006: 286)
- Gyalectidium appendiculatum Lücking, Lendemer & Tripp Lücking et al. (2007: 639 nom. inval.), Lendemer & Tripp (2008: 65 Type in Philadelphia, USA PH)
- Gyalideopsis anastomosans P. James & Vezda - Tønsberg (2006: 61)
- Gyalideopsis buckii Lücking, Sérus & Vezda Lücking et al. (2007: 650), Perlmutter & Lendemer (2008: 72)
- Gyalideopsis moodyae Lendemer & Lücking Lücking et al. (2007: 655)
- Gyalideopsis ozarkensis Lücking, W.R. Buck 7 R.C. Harris Lücking et al. (2007: 655), Perlmutter & Lendemer (2008: 72)
- Gyrostomum scyphuliferum (Ach.) Nyl. - Lendemer & Yahr (2004: 128)
- Haematomma accolens (Stirt.) Hillm. - Brodo et al. (2001: 331), Lendemer & Yahr (2004: 119), Perlmutter (2007: 26), Perlmutter (2007a: 117)
- Haematomma flexuosum group - Lendemer & Yahr (2004: 131), Lendemer & Tripp (2008: 60)
- Haematomma persoonii (Fée) A. Massal. - Brodo et al. (2001: 331)
- Hafellia curatellae (Malme) Marbach - USGS (2005: as Buellia curatellae)
- Hafellia disciformis (Fr.) Marbach & H. Mayrhofer - Brodo et al. (2001: as Buellia disciformis), USGS (2005), Perlmutter (2006: 290)
- Hafellia parastata (Nyl.) Kalb. - Imshaug (1951: )
- Hertelidea pseudobotryosa R.C. Harris, Ladd & Printzen - Printzen & Kantvilas (2004: )
- Heppia adglutinata (Kremp.) A. Massal. - Lendemer & Yahr (2004: 125)
- Heppia lutosa (Ach.) Nyl. Culberson (1961: 266)
- Heterodermia albicans (Pers.) Swinscow & Krog - Culberson (1966: 477 as Heterodermia domingensis), Brodo et al. (2001: 334), Lendemer & Yahr (2004: 120), Perlmutter (2006: 290), Perlmutter (2007a: 117), Lendemer & Tripp (2008: 60)
- Heterodermia appalachensis (Kurok.) Culb. - Culberson (1966: 479), Perry & Moore (1969: 151), Heiman (1996: 54), McCune et al. (1997: 150), Brodo et al. (2001: 335), Perlmutter (2006: 290)
- Heterodermia casarettiana (A. Massal.) Trev. - Culberson (1966: 477), Perry & Moore (1969: 151), Dey (1978: 84), Heiman (1996: 54), Perlmutter (2006: 290), Lendemer & Tripp (2008: 60)
- Heterodermia crocea R.C. Harris - Brodo et al. (2001: 335), Perlmutter (2007a: 117), Lendemer & Tripp (2008: 60)
- Heterodermia dendritica (Pers.) Poelt - Culberson (1966: 481)
- Heterodermia echinata (Taylor) Culb. - Culberson (1966: 481), Heiman (1996: 54), Brodo et al. (2001: 336), DePriest (2001: 8), Perlmutter (2006: 290)
- Heterodermia erecta Lendemer - Lendemer (2009: 13 Type in New York, USA NY)
- Heterodermia galactophylla (Tuck.) Culb. - Culberson (1966: 482), Perlmutter (2006: 290)
- Heterodermia granulifera (Ach.) Culb. - Culberson (1966: 482), Perry & Moore (1969: 151), Perlmutter (2006: 290), Lendemer & Tripp (2008: 60)
- Heterodermia hypoleuca (Ach.) Trevisan - Culberson (1966: 477), Perry & Moore (1969: 151), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 338), DePriest (2001: 8), Perlmutter (2006: 290), Lendemer & Tripp (2008: 60)
- Heterodermia leucomela (L.) Poelt - Fink (1935: 391 as Anaptychia leucomela), Culberson (1966: 483), Perry & Moore (1969: 151), Dey (1978: 85 as Heterodermia leucomelaena), Schmitt & Slack (1990: 264 as Heterodermia leucomelos), Heiman (1996: 54 as Heterodermia leucomelos), McCune et al. (1997: 151 as Heterodermia leucomelos), Brodo et al. (2001: 338), DePriest (2001: 8), Søchting & Lutzoni (2003: 1268)
- Heterodermia microphylla (Kurok.) Skorepa - McCune et al. (1997: 151)
- Heterodermia neglecta Lendemer, R.C. Harris & E. Tripp Lendemer et al. (2007: 490), Lendemer & Tripp (2008: 61)
- Heterodermia obscurata (Nyl.) Trev. - Culberson (1966: 477), Perry & Moore (1969: 151), Dey (1978: 82), Schmitt & Slack (1990: 264), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 339), DePriest (2001: 8), Lendemer & Yahr (2004: 119), Perlmutter (2006: 290), Lendemer & Tripp (2008: 60), Perlmutter & Lendemer (2008: 72)
- Heterodermia propagulifera (Vain.) Dey - Dey (1978: 86), Perlmutter (2006: 290)
- Heterodermia pseudospeciosa (Kurok.) W. Culb. - Culberson (1966: 477), Perry & Moore (1969: 151), Dey (1978: 86), Heiman (1996: 54), Perlmutter (2006: 291)
- Heterodermia speciosa (Wulfen) Trevisan - Culberson (1966: 477 as Heterodermia tremulans), Perry & Moore (1969: 151 as Heterodermia tremulans), Dey (1978: 86 as Heterodermia tremulans), Schmitt & Slack (1990: 264), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 339), DePriest (2001: 8), Lendemer & Yahr (2004: 119), Perlmutter (2006: 291), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Heterodermia squamulosa (Degel.) W. L. Culb. - Culberson (1966: 485), Perry & Moore (1969: 151), Dey (1978: 86), Schmitt & Slack (1990: 264), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 341), DePriest (2001: 8), Lendemer & Tripp (2008: 61). ISOTYPE in US.
- Hyperphyscia adglutinata (Flörke) H. Mayrh. & Poelt - Brodo et al. (2001: 343), Perlmutter (2006: 291)
- Hyperphyscia syncolla (Tuck. ex Nyl.) Kalb - Brodo et al. (2001: 343), DePriest (2001: 9), Perlmutter (2006: 291)
- Hypocenomyce anthracophila (Nyl.) P. James & Gotth. Schneider - Fink (1935: 214 as Psora anthracophila), Brodo et al. (2001: 344), Perlmutter (2006: 288)
- Hypocenomyce scalaris (Ach.) M. Choisy - Brodo et al. (2001: 344)
- Hypogymnia enteromorpha (Ach.) Nyl. - Perry & Moore (1969: 151)
- Hypogymnia krogiae Ohlsson - Dey (1978: 42), Heiman (1996: 54), Brodo et al. (2001: 350), Perlmutter (2006: 289)
- Hypogymnia physodes (L.) Nyl. - Perry & Moore (1969: 151), Dey (1978: 42), Schmitt & Slack 282. (1990: 264), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 354), DePriest (2001: 9)
- Hypogymnia tubulosa (Schaer.) Hav. - Dey (1978: 43), Brodo et al. (2001: 355)
- Hypogymnia vittata (Ach.) Gas. - Dey (1978: 43)
- Hypotrachyna afrorevoluta (Krog & Swinscow) Krog & Swinscow - Knudsen & Lendemer (2005: 292), Lendemer & Tripp (2008: 61)
- Hypotrachyna catawbiensis (Degel.) Divakar, Crespo, Sipman, Elix & Lumbsch - Dey (1978: 59 as Parmelia catawbiensis), Heiman (1996: 54 as Everniastrum catawbiense), McCune et al. (1997: 150 as Everniastrum catawbiense), Brodo et al. (2001: 313 as Everniastrum catawbiense)
- Hypotrachyna croceopustulata (Kurok. in Hale & Kurok.) Hale - Hale & Kurokawa (1964: 169 Type in MSC), Perry & Moore (1969: 153 as Parmelia croceopustulata), Dey (1978: 65 as Parmelia croceopustulata), Schmitt & Slack (1990: 264), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 357), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61). ISOTYPE in US.
- Hypotrachyna densirhizinata (Kurok.) Hale - Dey (1978: 65 as Parmelia densirhizinata)
- Hypotrachyna dentella (Hale & Kurok.) Hale - Perry & Moore (1969: 153 as Parmelia dentella), Dey (1978: 67 as Parmelia dentella)
- Hypotrachyna gondylophora (Hale) Hale - Hale (1967: 420 as Parmelia gondylophora Type in Washington, USA US), Dey (1978: 66 as Parmelia gondylophora), Heiman (1996: 54), McCune et al. (1997: 151)
- Hypotrachyna imbricatula (Zahlbr.) Hale - Perry & Moore (1969: 153 as Parmelia imbricatula), Dey (1978: 66 as Parmelia imbricatula), Schmitt & Slack (1990: 264), Heiman (1996: 54), DePriest (2001: 9)
- Hypotrachyna laevigata (Sm.) Hale - Dey (1978: 67 as Parmelia laevigata), Heiman (1996: 54)
- Hypotrachyna livida (Taylor) Hale - Perry & Moore (1969: 153 as Parmelia livida), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 358), DePriest (2001: 9), Lendemer & Yahr (2004: 119), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Hypotrachyna oostingii (J. P. Dey) Hale - Dey (1974: 362 as Parmelia oostingii Type in DUKE), Dey (1978: 67 as Parmelia oostingii), Heiman (1996: 54)
- Hypotrachyna osseoalba (Vain.) Park & Hale - Heiman (1996: 54 as Hypotrachyna formosana), Brodo et al. (2001: 358), Lendemer & Yahr (2004: 119), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72). ISOTYPE in US.
- Hypotrachyna producta Hale - Dey (1978: as Parmelia producta)
- Hypotrachyna prolongata (Kurok.) Hale - Hale (1971: 436 as Parmelia rachista Type in Washington, USA US), Dey (1978: 68 as Parmelia rachista), Heiman (1996: 54)
- Hypotrachyna pseudosinuosa (Asah.) Hale - McCune et al. (1997: 151), Lendemer & Tripp (2008: 61)
- Hypotrachyna pustulifera (Hale) Skorepa - McCune et al. (1997: 151), Perlmutter (2006: 289)
- Hypotrachyna revoluta (Flörke) Hale - Perry & Moore (1969: 153 as Parmelia revoluta), Dey (1978: 68 as Parmelia revoluta), Schmitt & Slack (1990: 264), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 359), DePriest (2001: 9), Lendemer & Tripp (2008: 61)
- Hypotrachyna rockii (Zahlbr.) Hale - Perry & Moore (1969: 153 as Parmelia rockii), Dey (1978: 70 as Parmelia rockii), Schmitt & Slack (1990: 264), Heiman (1996: 54), McCune et al. (1997: 151)
- Hypotrachyna showmanii Hale - McCune et al. (1997: 151), Perlmutter (2006: 289)
- Hypotrachyna sinuosa (Sm.) Hale - Dey (1978: 70 as Parmelia sinuosa)
- Hypotrachyna taylorensis (M.E. Mitch.) Hale - Groner & Dietrich (1996: 459)
- Hypotrachyna thysanota (Kurok.) Hale - Dey (1978: 70 as Parmelia thysanota)
- Hypotrachyna virginica (Hale) Hale - Perry & Moore (1969: 154 as Parmelia virginica), Dey (1978: 70 as Parmelia virginica), Heiman (1996: 54)
- Imshaugia aleurites (Ach.) S.F. Meyer - Perry & Moore (1969: 154 as Parmeliopsis aleurites), Dey (1978: 71 as Parmeliopsis aleurites), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 361), DePriest (2001: 9), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61)
- Imshaugia placorodia (Ach.) S.F. Meyer - Fink (1935: 319 as Parmeliopsis placorodia), Perry & Moore (1969: 154 as Parmeliopsis placorida), McCune et al. (1997: 151), Brodo et al. (2001: 362), Perlmutter (2006: 289)
- Ionaspis alba Lutzoni - Lendemer & Tripp (2008: 61)
- Ionaspis lacustris (With.) Lutzoni - Fink (1935: 299 as Lecanora lacustris), Brodo et al. (2001: 363), Perlmutter & Lendemer (2008: 72)
- Jamesiella anastomosans (P. James & Vezda) Lücking, Sérus. & Vezda Lücking et al. (2007: 663)
- Lasallia papulosa (Ach.) Llano - Oosting & Anderson (1937: 286 as Umbilicaria pustulata var. papulosa), Perry & Moore (1969: 151), Dey (1978: 40), Heiman (1996: 54), Brodo et al. (2001: 366), Perlmutter (2006: 293), Lendemer & Tripp (2008: 61)
- Lasallia pensylvanica (Hoffm.) Llano - Dey (1978: 40), Brodo et al. (2001: 367), Perlmutter (2006: 293)
- Lecanora albella (Pers.) Ach. - Culberson (1958: as Lecanora pallida)
- Lecanora albellula Nyl. - Degelius (1951: as Lecanora piniperda)
- Lecanora allophana Nyl. - Schmitt & Slack (1990: 264), Brodo et al. (2001: 375), Perlmutter (2006: 288)
- Lecanora argentata (Ach.) Malme - Schmitt & Slack (1990: 264), Brodo (1984: )
- Lecanora caesiorubella Ach. - Schmitt & Slack (1990: 264), Brodo et al. (2001: 376), Lendemer & Yahr (2004: 119), Perlmutter (2006: 288), Perlmutter (2007: 26), Lendemer & Tripp (2008: 61)
- Lecanora caesiorubella subsp. glaucomodes (Nyl.) Imshaug & Brodo - Lendemer & Yahr (2004: 129)
- Lecanora cenisia Ach. - Brodo et al. (2001: 377), Perlmutter (2006: 288)
- Lecanora chlarotera Nyl. - Brodo (1984: ), Perlmutter (2006: 288)
- Lecanora cinereofusca H. Magn. - Schmitt & Slack (1990: 264), Brodo et al. (2001: 377), Perlmutter (2006: 288)
- Lecanora cinereofusca var. appalachensis Brodo - Brodo et al. (2001: 378)
- Lecanora cupressi Tuck. - Brodo et al. (2001: 379), Lendemer & Yahr (2004: 125)
- Lecanora expallens Ach. - Degelius (1941: as Lecanora conizaea)
- Lecanora hybocarpa (Tuck.) Brodo - Schmitt & Slack (1990: 264), Brodo et al. (2001: 381), Lendemer & Yahr (2004: 119), Perlmutter (2006: 288), Perlmutter (2007: 26), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Lecanora hypoptoides (Nyl.) Nyl. - Degelius (1941: )
- Lecanora impudens Degel. - Schmitt & Slack (1990: 264)
- Lecanora imshaugii Brodo - Brodo (1984: ), Schmitt & Slack (1990: 264), Perlmutter (2006: 288), Lendemer & Tripp (2008: 61)
- Lecanora insignis Degel. - Degelius (1941: )
- Lecanora louisianae B. de Lesd. - DePriest (2001: 9), Lendemer & Yahr (2004: 125), Perlmutter (2007: 26), Perlmutter (2007a: 117)
- Lecanora miculata Ach. - Brodo (1984: ), Perlmutter (2006: 288)
- Lecanora minutella Nyl. - Culberson (1958: 26), LaGreca & Lumbsch (2001: ), Perlmutter (2006: 288), Lendemer & Tripp (2008: 61)
- Lecanora oreinoides (Körb.) Hertel & Rambold - Brodo et al. (2001: 384), Perlmutter (2006: 288), Lendemer & Tripp (2008: 61)
- Lecanora polytropa (Hoffm.) Rabenh. - Brodo et al. (2001: 387)
- Lecanora pulicaris (Pers.) Ach. - Degelius (1941: as Lecanora pinastri), Perlmutter (2006: 288)
- Lecanora rugosella Zahlbr. - Brodo (1984: ), Schmitt & Slack (1990: 265), Perlmutter (2007: 26)
- Lecanora strobilina (Sprengel) Kieffer - Schmitt & Slack (1990: 265), Brodo et al. (2001: 388), Lendemer & Yahr (2004: 128), Perlmutter (2006: 288), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Lecanora subimmergens Vain. - Brodo (1984: ), Perlmutter & Lendemer (2008: 72)
- Lecanora subpallens Zahlbr. - Brodo et al. (2001: 376 as Lecanora caesiorubella subsp. prolifera), DePriest (2001: 9 as Lecanora caesiorubella subsp. prolifera), Lendemer & Yahr (2004: 125), Perlmutter (2006: 288), Perlmutter & Lendemer (2008: 72)
- Lecanora symmicta (Ach.) Ach. - Brodo et al. (2001: 388)
- Lecanora thysanophora R.C. Harris - Schmitt & Slack (1990: 265), Brodo et al. (2001: 389), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Lecanora varia (Hoffm.) Ach. - Perlmutter (2006: 288)
- Lecanora wisconsinensis H. Magn. - Brodo (1984: )
- Lecidea cyrtidia Tuck. - Lendemer & Tripp (2008: 61)
- Lecidea microps Tuck. - Tuckerman (xxx: xx Type), Fink (1935: 212)
- Lecidea micytho Tuck. ex Willey - Fink 1935: 206)
- Lecidea nylanderi (Anzi) Th. Fr. - Culberson (1958: 26), Perlmutter (2006: 288)
- Lecidea roseotincta Coppins & Tønsberg - Tønsberg (2006: 62)
- Lecidea subtilis Degel. - Degelius (1941: )
- Lecidea tessellata Flörke - Brodo et al. (2001: 393)
- Lecidella elaeochroma (Ach.) Haszl. - Degelius (1941: as Lecidea olivacea), Lendemer & Tripp (2008: 61)
- Lecidella enteroleucella (Nyl.) Hertel - Perlmutter (2006: 288)
- Leioderma cherokeense P.M. Jørg. & Tønsberg - Jørgensen & Tønsberg (2005: 412 Protolog) 351. Type in BG
- Leiorreuma explicans (Fink) Lendemer - Perlmutter & Lendemer (2008: 72)
- Leiorreuma sericeum (Eschw.) Staiger - Lendemer & Yahr (2004: 134 as Pheographis sericea)
- Lepraria caesiella R.C. Harris - Perlmutter (2006: 291), Lendemer & Tripp (2008: 61)
- Lepraria cryophila Lendemer - Lendemer (2010: 62 Type in New York, USA NY), Lendemer (2013: 44)
- Lepraria friabilis Lendemer, K. Knudson & Elix Lendemer et al. (2008: 66), Perlmutter & Lendemer (2008: 72)
- Lepraria lanata Tønsberg Tønsberg (2007: 52)
- Lepraria lobificans Nyl. - Brodo et al. (2001: 396), Perlmutter (2006: 291), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Lepraria membranacea (Dicks.) Vain. - Perlmutter (2006: 291)
- Lepraria neglecta (Nyl.) Erichsen - Brodo et al. (2001: 397)
- Lepraria normandinoides Lendemer & R.C. Harris Lendemer & Harris (2007: 45), Lendemer (2007a: 73), Lendemer & Tripp (2008: 61)
- Lepraria salazinica Tønsberg Tønsberg (2007: 52)
- Lepraria vouauxii (Hue) R.C. Harris - Lendemer & Tripp (2008: 61)
- Leptogium austroamericanum (Malme) Dodge - Heiman (1996: 54), Brodo et al. (2001: 401), DePriest (2001: 9), Lendemer & Yahr (2004: 122), Perlmutter (2006: 292)
- Leptogium azureum (Sw.) Mont. - Sierk (1964: 305), Perry & Moore (1969: 151), Brodo et al. (2001: 401), Lendemer & Yahr (2004: 132), Perlmutter (2006: 292), Perlmutter (2007a: 117)
- Leptogium burnetiae C.W. Dodge - Dey (1978: 17), Heiman (1996: 54), DePriest (2001: 9)
- Leptogium byssinum (Hoffm.) Zwackh ex Nyl. Fink (1935: 162)
- Leptogium chloromelum (Ach.) Nyl. - Sierk (1964: 293), Perry & Moore (1969: 151), Becker et al. (1977: 96), Dey (1978: 17), Brodo et al. (2001: 402), Lendemer & Yahr (2004: 128)
- Leptogium corticola (Taylor) Tuck. - Perry & Moore (1969: 151), Becker et al. (1977: 96), Dey (1978: 17), Becker (1980: 30), Schmitt & Slack (1990: 265), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 404), DePriest (2001: 9), Perlmutter (2006: 292), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Leptogium cyanescens (Ach.) Körb. - Perry & Moore (1969: 152), Becker et al. (1977: 96), Dey (1978: 17), Becker (1980: 30), Schmitt & Slack (1990: 265), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 404), DePriest (2001: 9), Lendemer & Yahr (2004: 119), Perlmutter (2006: 292), Perlmutter (2007a: 117), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Leptogium dactylinum Tuck. - Sierk (1964: 300), Lendemer & Yahr (2004: 122), Perlmutter (2006: 292), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Leptogium hirsutum Sierk - Perry & Moore (1969: 152), Perlmutter (2006: 292)
- Leptogium isidiosellum (Riddle) Sierk Lendemer (2008: 103)
- Leptogium juniperinum Tuck. - Sierk (1964: 316), Perlmutter (2006: 292)
- Leptogium laceroides B. de Lesd. - Sierk (1964: 264 as Leptogium americanum), Dey (1978: 17), Heiman (1996: 54), McCune et al. (1997: 151), Lendemer & Tripp (2008: 61)
- Leptogium lichinoides (L.) Zahlbr. - Heiman (1996: 54), Brodo et al. (2001: 405)
- Leptogium milligranum Sierk - Perry & Moore (1969: 152), Brodo et al. (2001: 406), DePriest (2001: 9), Lendemer & Yahr (2004: 128), Perlmutter (2006: 292)
- Leptogium palmatum (Huds.) Mont. - Perlmutter (2006: 292)
- Leptogium phyllocarpum (Pers.) Mont. - Sierk (1964: 296), Brodo et al. (2001: 407)
- Leptogium tenuissimum (Dicks.) Körb. - USGS (2005: )
- Leptogium teretiusculum (Wallr.) Arnold - McCune et al. (1997: 151)
- Leptorhaphis contorta Degel. - Degelius (1941: )
- Leucodecton glaucescens (Nyl.) A. Frisch Lendemer & Yahr (2004: 122 as Myriotrema glaucescens)
- Leucodecton subcompunctum (Nyl.) A. Frisch Perlmutter (2006: 286 as Myriotrema subcompunctum), Lendemer & Tripp (2008: 61 as Myriotrema subcompunctum)
- Lichinia willeyi (Tuck.) Henssen - Perlmutter (2006: 293)
- Lithothelium hyalosporum (Nyl.) Aptroot - Harris (1973: )
- Lithothelium illotum (Nyl.) Aptroot - Harris (1995: )
- Lithothelium macrosporum (R.C. Harris) Aptroot - Harris (1989: )
- Lithothelium phaeosporum (R.C. Harris) Aptroot - Harris (1989: ), Perlmutter & Lendemer (2008: 72)
- Lithothelium septemseptatum (R.C. Harris) Aptroot - Harris (1989: ). ISOTYPE in US.
- Lobaria pulmonaria (L.) Hoffm. - Perry & Moore (1969: 152), Dey (1978: 22), Becker (1980: 30), Schmitt & Slack (1990: 265), Heiman (1996: 54), McCune et al. (1997: 151), Brodo et al. (2001: 417), DePriest (2001: 9), Perlmutter (2006: 292), Lendemer (2007a: 74), Lendemer & Tripp (2008: 61)
- Lobaria quercizans Michx. - Perry & Moore (1969: 152), Becker et al. (1977: 96), Dey (1978: 22), Becker (1980: 30), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), Brodo et al. (2001: 420), DePriest (2001: 9), Perlmutter (2006: 292)
- Lobaria ravenelii (Tuck.) Yoshimura - McCune et al. (1997: ), Brodo et al. (2001: 420), Lendemer & Yahr (2004: 122), Perlmutter (2006: 292)
- Lobaria scrobiculata (Scop.) DC. - Perry & Moore (1969: 152), Dey (1978: 23), Heiman (1996: 55), Brodo et al. (2001: 421)
- Lobaria tenuis Vain. - Brodo et al. (2001: 421)
- Lopadium disciforme (Flot.) Kullh. - Brodo et al. (2001: 424)
- Loxospora cismonica (Beltr.) Hafellner - Brodo et al. (2001: 425), Fink (1935: 315 as Haematomma cismonicum), Culberson (1958: 26 as Haematomma cismonicum)
- Loxospora elatina (Ach.) A. Massal. - Fink (1935: 314 as Haematomma elatinum), Perlmutter (2006: 288)
- Loxospora ochrophaea (Tuck.) R.C. Harris - Brodo et al. (2001: 425)
- Loxospora pustulata (Brodo & W.L. Culb.) R.C. Harris - Brodo & Culberson (1986: 204 as Haematomma pustulatum), Schmitt & Slack (1990: 265 as Heamatomma pustulatum), Brodo et al. (2001: 426), Lendemer & Yahr (2004: 125), Perlmutter (2006: 288), Perlmutter (2007a: 117), Lendemer & Tripp (2008: 62), Perlmutter & Lendemer (2008: 72). ISOTYPE in US.
- Marchandiomyces corallinus (Roberge) Diederich & Hawksw. - Perlmutter & Lendemer (2008: 72)
- Maronea polyphaea H. Magn. - Lendemer & Yahr (2004: 119), Perlmutter (2006: 292), Perlmutter & Lendemer (2008: 72)
- Megalaria albocincta (Degel.) Tønsberg - Degelius (1941: as Catinaria albocincta)
- Megalaria beechingii Lendemer Lendemer (2007: 42), Lendemer (2007b: 100)
- Megalaria laureri (Hepp ex Th. Fr.) Hafellner - Schmitt & Slack (1990: 265 as Catinaria laureri), Brodo et al. (2001: 429)
- Megalospora porphyritis (Tuck.) R.C. Harris - Harris (1984: ), Lendemer (2007a: 78 as Megaspora porphyritis), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 61), Perlmutter & Lendemer (2008: 72)
- Megalospora tuberculosa (Fée) Sipman - USGS (2005: )
- Megaspora verrucosa (Ach.) Hafellner & V. Wirth - Fink (1935: 297 as Lecanora verrucosa)
- Melanelia culbersonii (Hale) A. Thell - Hale (1967: 416 as Cetraria culbersonii), Heiman (1996: 53 as Cetraria culbersonii), Brodo et al. (2001: 432), Perlmutter (2006: 289)
- Melanelia hepatizon (Ach.) A. Thell - Dey (1978: 46 as Cetraria hepatizon)
- Melanelia stygia (L.) Essl. - Perry & Moore (1969: 154 as Parmelia stygia), Dey (1978: 55 as Parmelia stygia), Heiman (1996: 55), Brodo et al. (2001: 439)
- Melanelixia fuliginosa (Fr. ex Duby) O. Blanco et al. - Brodo et al. (2001: 434 as Melanelia fuliginosa)
- Melanelixia subaurifera (Nyl.) O. Blanco et al. - Dey (1978: 55 as Parmelia subaurifera), McCune et al. (1997: 151 as Melanelia subaurifera), Brodo et al. (2001: 439 as Melanelia subaurifera), DePriest (2001: 9 as Melanelia subaurifera)
- Melanohalea exasperata (De Not.) O. Blanco et al. - Heiman (1996: 55 as Melanelia exasperata)
- Melanohalea halei (Ahti) O. Blanco et al. - Perry & Moore (1969: 153 as Parmelia halei), Dey (1978: 54 as Parmelia halei), Schmitt & Slack (1990: 265 as Melanelia halei), Heiman (1996: 55 as Melanelia halei), McCune et al. (1997: 151 as Melanelia halei)
- Melanohalea olivacea (L.) O. Blanco et al. - Degelius (1941: as Parmelia olivacea)
- Melaspilea gemella (Eshw.) Nyl. - Fink (1935: 102 as Opegrapha scaphella var. gemella)
- Melaspilea tribuloides (Tuck. ex Willey) R.C. Harris - Fink (1935: 105)
- Menegazzia subsimilis (H. Magn.) R. Sant. - Lendemer & Tripp (2008: 61)
- Menegazzia terebrata (Hoffm.) A. Massal. - Culberson (1958: 26 as Parmelia pertusa), Perry & Moore (1969: 152), Dey (1978: 43), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), Brodo et al. (2001: 441), DePriest (2001: 9)
- Micarea endocyanea (Tuck. ex Willey) R.C. Harris - Schmitt & Slack (1990: 265)
- Micarea melaena (Nyl.) Hedl. - Lendemer & Tripp (2008: 61)
- Micarea misella (Nyl.) Hedl. - Lendemer & Yahr (2004: 125)
- Micarea neostipitata Coppins & May - Coppins & May (2001: 490), Lendemer & Tripp (2008: 61)
- Micarea peliocarpa (Anzi) Coppins & R. Sant. - Brodo et al. (2001: 443), Lendemer & Tripp (2008: 61)
- Micarea prasina Fr. - Lendemer & Yahr (2004: 119)
- Mycoblastus caesius (Coppins & P. James) Tønsberg - Tønsberg (2006: 62)
- Mycoporum compositum (A. Massal.) R.C. Harris - Fink (1935: 67 as Mycoporum ohiense)
- Mycoporum pycnocarpoides Müll. Arg. - Harris (1973: )
- Myelochroa aurulenta (Tuck.) Elix & Hale - Perry & Moore (1969: 152 as Parmelia aurulenta), Dey (1978: 62 as Parmelia aurulenta), Schmitt & Slack (1990: 265 as Parmelina aurulenta), Heiman (1996: 55 as Parmelina aurulenta), McCune et al. (1997: 151), Brodo et al. (2001: 447), DePriest (2001: 9), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61)
- Myelochroa galbina (Ach.) Elix & Hale - Perry & Moore (1969: 153 as Parmelia glabina), Dey (1978: 63 as Parmelia galbina), Heiman (1996: 55 as Parmelina galbina), McCune et al. (1997: 151), Brodo et al. (2001: 447), DePriest (2001: 9), Perlmutter (2006: 289)
- Myelochroa metarevoluta (Asah.) Elix & Hale Lendemer (2007b: 100 First record)
- Myelochroa obsessa (Ach.) Elix & Hale - Heiman (1996: 55 as Parmelina obsessa), Brodo et al. (2001: 448), DePriest (2001: 9), Perlmutter (2006: 289)
- Myriotrema wightii (Taylor) Hale - Lendemer & Yahr (2004: 122)
- Myxobilimbia sabuletorum (Schreb.) Hafellner Brodo et al. (2001: )
- Nadvornikia sorediata R.C. Harris - Lendemer & Yahr (2004: 133), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 61)
- Nephroma helveticum Ach. - Perry & Moore (1969: 152), Dey (1978: 21), Becker (1980: 30), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), Brodo et al. (2001: 454), DePriest (2001: 9), Perlmutter (2006: 292), Lendemer & Tripp (2008: 61)
- Nephroma parile (Ach.) Ach. - Dey (1978: 21), Brodo et al. (2001: 456)
- Nephroma resupinatum (L.) Ach. - Dey (1978: 21), Brodo et al. (2001: 457)
- Normandina pulchella (Borr.) Nyl. - Dey (1978: 14), Schmitt & Slack (1990: 265), Brodo et al. (2001: 461), DePriest (2001: 9), Perlmutter (2006: 293), Lendemer & Tripp (2008: 61)
- Ocellularia praestans (Müll. Arg.) Hale - Lendemer & Yahr (2004: 135)
- Ochrolechia africana Vain. - Brodo (1991: 740), Brodo et al. (2001: 464), Lendemer & Yahr (2004: 119), Perlmutter (2006: 286), Perlmutter (2007: 26), Perlmutter (2007a: 118)
- Ochrolechia arborea (Kreyer) Almb. - Brodo (1991: 745)
- Ochrolechia mexicana Vain. - Brodo (1991: 752)
- Ochrolechia pseudopallescens Brodo - Brodo (1991: 757), Perlmutter (2006: 286)
- Ochrolechia tartarea (L.) A. Massal. - Howard (1970: 125), Perlmutter (2006: 286)
- Ochrolechia trochophora var. pruinirosella Brodo - Brodo (1991: 764)
- Ochrolechia trochophora var. trochophora (Vain.) Oshio - Brodo (1991: 763), Brodo et al. (2001: 468), Perlmutter (2006: 286), Lendemer & Tripp (2008: 61)
- Ochrolechia yasudae Vain. - Howard (1970: 129), Brodo (1991: 765), Brodo et al. (2001: 468), Perlmutter (2006: 286)
- Opegrapha corticola Coppins & P. James - Tønsberg (2006: 62)
- Opegrapha moroziana Lendemer - Lendemer (xx: xx Type in New York, USA NY)
- Opegrapha varia Pers. - Brodo et al. (2001: 472), Lendemer & Yahr (2004: 119), Perlmutter (2006: 285)
- Opegrapha viridis (Ach.) Behlen & Desberger - Lendemer & Yahr (2004: 135)
- Opegrapha vulgata Ach. - Lendemer & Yahr (2004: 122), Lendemer & Tripp (2008: 61)
- Pannaria conoplea (Ach.) Bory - Dey (1978: 19 as Pannaria pityrea), Schmitt & Slack (1990: 265), Heiman (1996: 55), Brodo et al. (2001: 476), Lendemer & Tripp (2008: 61)
- Pannaria leucosticta (Tuck.) Tuck. ex Nyl. - Perry & Moore (1969: 152), Becker et al. (1997: 96), Dey (1978: 19), McCune et al. (1997: 151)
- Pannaria lurida (Mont.) Nyl. - Brodo et al. (2001: 476), Perlmutter (2006: 292), Lendemer & Tripp (2008: 61)
- Pannaria lurida subsp. russellii (Tuck.) P.M. Jørg. - Jørgensen (2000b: 694)
- Pannaria rubiginosa (Ach.) Del. - Fink (1935: 177), Perry & Moore (1969: 152), Dey (1978: 19), Becker (1980: 30), Heiman (1996: 55), McCune et al. (1997: 151), Jørgensen (2000b: 695), Brodo et al. (2001: 478), Perlmutter (2006: 292)
- Pannaria subfusca P.M. Jørg. - Jørgensen (2000b: 695), Perlmutter (2006: 292), Lendemer & Tripp (2008: 61)
- Pannaria tavarisii P.M. Jørg. - Heiman (1996: 55), McCune et al. (1997: 151), Jørgensen (2000b: 695), Brodo et al. (2001: 479), Perlmutter (2006: 292), Lendemer & Tripp (2008: 61)
- Parmelia omphalodes (L.) Ach. - Perry & Moore (1969: 153), Dey (1978: 60), Heiman (1996: 55), Brodo et al. (2001: 482)
- Parmelia saxatilis (L.) Ach. - Perry & Moore (1969: 154), Dey (1978: 61), Heiman (1996: 55), Brodo et al. (2001: 483), Perlmutter (2006: 289)
- Parmelia squarrosa Hale - Dey (1978: 61), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), Brodo et al. (2001: 484), DePriest (2001: 9), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61)
- Parmelia submarginalis (Wulfen) Ach. - Fink (1935: )
- Parmelia sulcata Taylor - Perry & Moore (1969: 154), Dey (1978: 62), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), Brodo et al. (2001: 484)
- Parmeliella appalachensis P.M. Jørg. - Jørgensen (2000b: 696), Perlmutter (2006: 292), Lendemer (2007a: 74), Lendemer & Tripp (2008: 61)
- Parmeliella corallinoides (Hoffm.) Zahlbr. - Perry & Moore (1969: 154), Dey (1978: 19), Becker (1980: 30)
- Parmeliella pannosa (Sw.) Nyl. - Heiman (1996: 55), Jørgensen (2000b: 698)
- Parmeliella triptophylla (Ach.) Müll. Arg. - McCune et al. (1997: 151), Heiman (1996: 55), Brodo et al. (2001: 485)
- Parmelinopsis horrescens (Taylor) Elix & Hale - Perry & Moore (1969: 153 as Parmelia horrescens), Dey (1978: 64 as Parmelia horrescens), Schmitt & Slack (1990: 265 as Parmelina horrescens), Heiman (1996: 55 as Parmelina horrescens), McCune et al. (1997: 151), Brodo et al. (2001: 486), DePriest (2001: 9), Lendemer & Yahr (2004: 119), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61)
- Parmelinopsis minarum (Vain.) Elix & Hale - Culberson (1958: 26 as Parmelia dissecta), Perry & Moore (1969: 153 as Parmelia dissecta), Dey (1978: 63 as Parmelia dissecta), Schmitt & Slack (1990: 265 as Parmelina minarum), Heiman (1996: 55 as Parmelina minarum), McCune et al. (1997: 151), Brodo et al. (2001: 487), DePriest (2001: 9), Lendemer & Yahr (2004: 128), Perlmutter (2006: 289), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 61)
- Parmelinopsis spumosa (Asahina) Elix & Hale - McCune et al. (1997: 151), Lendemer & Yahr (2004: 119)
- Parmeliopsis ambigua (Wulfen) Nyl. - Culberson (1958: )
- Parmeliopsis hyperopta (Ach.) Arnold - Culberson (1958: )
- Parmeliopsis subambigua Gyeln. - Hale (1967: 422 as Parmeliopsis halei), Brodo et al. (2001: ), Lendemer & Yahr (2004: 125), Perlmutter (2006: 289)
- Parmotrema arnoldii (Du Rietz) Hale - Dey (1978: 55 as Parmelia arnoldii), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), Brodo et al. (2001: 492), DePriest (2001: 9)
- Parmotrema austrosinense (Zahlbr.) Hale - Heiman (1996: 55), Brodo et al. (2001: 492)
- Parmotrema cetratum (Ach.) Hale - Perry & Moore (1969: 152 as Parmelia cetrata), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 152 as Rimelia cetrata), Brodo et al. (2001: 642 as Rimelia cetrata), DePriest (2001: 10 as Rimelia cetrata), Lendemer & Yahr (2004: 120 as Rimelia cetrata), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61)
- Parmotrema chinense (Osbeck) Hale & Ahti - Perry & Moore (1969: 153 as Parmelia perlata), Dey (1978: 57 as Parmelia perlata), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), Brodo et al. (2001: 493), DePriest (2001: 9), Perlmutter (2006: 289)
- Parmotrema commensuratum (Hale) Hale - Dey (1974: 251 as Parmelia commensurata)
- Parmotrema crinitum (Ach.) M. Choisy - Perry & Moore (1969: 152 as Parmelia crinita), Dey (1978: 56 as Parmelia crinita), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), Brodo et al. (2001: 494), DePriest (2001: 9), Lendemer & Yahr (2004: 119), Perlmutter (2006: 289)
- Parmotrema diffractaicum (Essl.) Hale - McCune et al. (1997: 152 as Rimelia diffractaica), Perlmutter (2006: 289)
- Parmotrema dilatatum (Vain.) Hale - McCune et al. (1997: 151), Brodo et al. (2001: 495), Perlmutter (2006: 289)
- Parmotrema dominicanum (Vain.) Hale - USGS (2005: )
- Parmotrema eurysacum (Hue) Hale - McCune et al. (1997: 151)
- Parmotrema gardneri (C.W. Dodge) Sérus. - Schmitt & Slack (1990: 265 as Parmotrema robustrum), DePriest (2001: 9)
- Parmotrema haitiense (Hale) Hale - Lendemer & Yahr (2004: 122 as Canomaculina haitiensis), Perlmutter (2006: 289)
- Parmotrema hypoleucinum (Steiner) Hale - Lendemer & Yahr (2004: 125), Perlmutter (2006: 289), Perlmutter (2007a: 118)
- Parmotrema hypotropum (Nyl.) Hale - Perry & Moore (1969: 153 as Parmelia hypotropa), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), Brodo et al. (2001: 496), DePriest (2001: 9), Lendemer & Yahr (2004: 125), Perlmutter (2006: 289)
- Parmotrema madagascariaceum (Hue) Hale - Lendemer & Yahr (2004: 125), Perlmutter (2006: 289)
- Parmotrema margaritatum (Hue) Hale - Perry & Moore (1969: 153 as Parmelia margaritata), Dey (1978: 56 as Parmelia margaritata), Heiman (1996: 55), McCune et al. (1997: 151), Perlmutter (2006: 289)
- Parmotrema mellissii (C.W. Dodge) Hale - Dey (1978: 56 as Parmelia mellissii), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 151), DePriest (2001: 9), Lendemer & Yahr (2004: 120), Perlmutter (2006: 289), Lendemer (2007a: 70), Lendemer & Tripp (2008: 61)
- Parmotrema neotropicum (Kurok.) Hale - Heiman (1996: 55)
- Parmotrema perforatum (Jacq.) A. Massal. - Culberson (1958: 26 as Parmelia erecta), Perry & Moore (1969: 153 as Parmelia perforata), Heiman (1996: 55), McCune et al. (1997: 151) Brodo et al. (2001: 499), DePriest (2001: 9), Lendemer & Yahr (2004: 119), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61)
- Parmotrema praesorediosum (Nyl.) Hale - McCune et al. (1997: ), Brodo et al. (2001: 499), Lendemer & Yahr (2004: 128), Perlmutter (2007a: 118)
- Parmotrema rampoddense (Nyl.) Hale - Brodo et al. (2001: 499), Lendemer & Yahr (2004: 119), Perlmutter (2006: 289)
- Parmotrema reticulatum (Taylor) - Culberson (1958: 26 as Parmelia reticulata), Perry & Moore (1969: 153 as Parmelia reticulata), Dey (1978: 62 as Parmelia reticulata), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 152 as Rimelia reticulata), Brodo et al. (2001: 642 as Rimelia reticulata), DePriest (2001: 10 as Rimelia reticulata), Lendemer & Yahr (2004: 120 as Rimelia reticulata), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61)
- Parmotrema simulans (Hale) Hale - McCune et al. (1997: as Rimelia simulans), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61)
- Parmotrema stuppeum (Taylor) Hale - Perry & Moore (1969: 154 as Parmelia stuppea), Dey (1978: 57 as Parmelia stuppea), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 152), Brodo et al. (2001: 500)
- Parmotrema subisidiosum (Müll. Arg.) Hale & Fletcher - Perry & Moore (1969: 154 as Parmelia subisidiosa), Dey (1978: 62 as Parmelia subisidiosa), Schmitt & Slack (1990: 265), Heiman (1996: 55), McCune et al. (1997: 152 as Rimelia subisidiosa), Brodo et al. (2001: 643 as Rimelia subisidiosa), DePriest (2001: 10 as Rimelia subisidiosa), Lendemer & Yahr (2004: 123 as Rimelia subisidiosa), Perlmutter (2006: 289), Perlmutter (2007a: 118)
- Parmotrema submarginale (Michx.) De Priest & B. Hale - Perry & Moore (1969: 153 as Parmelia michauxiana), Heiman (1996: 55 as Parmotrema michauxianum), McCune et al. (1997: 151 as Parmotrema michauxianum), Brodo et al. (2001: 497 as Parmotrema michauxianum), DePriest (2001:9), Lendemer & Yahr (2004: 119), Perlmutter (2006: 289), Perlmutter (2007: 27)
- Parmotrema subrigidum Egan - McCune et al. (1997: 152 as Parmotrema rigidum), Lendemer & Yahr (2004: 122 as Parmotrema rigidum), Egan et al. (2005: 405), Perlmutter (2007: 27), Perlmutter (2007a: 118)
- Parmotrema subsumptum (Nyl.) Hale - McCune et al. (1997: 152 as Canomaculina subsumpta), Perlmutter (2006: 289)
- Parmotrema subtinctorium (Zahlbr.) Hale - Perry & Moore (1969: 154 as Parmelia subcrinita), Heiman (1996: 55), McCune et al. (1997: 152), Brodo et al. (2001: 211 as Canomaculina subtinctoria), DePriest (2001: 8 as Canomaculina subtinctoria), Lendemer & Yahr (2004: 124 as Canomaculina subtinctoria), Perlmutter (2006: 289), Lendemer & Tripp (2008: 61)
- Parmotrema tinctorum (Del. ex Nyl.) Hale - Heiman (1996: 55), Brodo et al. (2001: 501), DePriest (2001: 9), Lendemer & Yahr (2004: 126), Perlmutter (2006: 289), Perlmutter (2007: 27), Perlmutter (2007a: 118)
- Parmotrema ultralucens (Krog) Hale - Heiman (1996: 55), Brodo et al. (2001: 501), DePriest (2001: 9), Lendemer & Yahr (2004: 126), Perlmutter (2006: 289)
- Parmotrema xanthinum (Müll. Arg.) Hale - Perry & Moore (1969: 154 as Parmelia xanthina), McCune et al. (1997: 152), Brodo et al. (2001: 502), Lendemer & Yahr (2004: 126), Lendemer (2005: 49), Perlmutter (2006: 289)
- Peccania kansana (Tuck.) Forss. - Keever et al. (1951: ), Perlmutter (2006: 293)
- Peltigera canina (L.) Willd. - Perry & Moore (1969: 154), Becker et al. (1977: 96), Dey (1978: 20), Becker (1980: 30), Heiman (1996: 55), Brodo et al. (2001: 506), Perlmutter (2006: 292)
- Peltigera didactyla (With.) J.R. Laundon - Brodo et al. (2001: 507)
- Peltigera elisabethae Gyeln. - Dey (1978: as Peltigera horizontalis), Heiman (1996: 55 as Peltigera horizontalis), Perlmutter (2006: 292)
- Peltigera hydrothyria Miadl. & Lutzoni - Fink (1935: 171 as Hydrothyria venosa), Perry & Moore (1959: 156 as Hydrothyria venosa), Heiman (1996: as Hydrothyria venosa), Brodo et al. (2001: 342 as Hydrothyria venosa), Perlmutter (2006: 292)
- Peltigera lepidophora (Vain.) Bitter - Brodo et al. (2001: 511)
- Peltigera leucophlebia (Nyl.) Gyelnik - Heiman (1996: 56)
- Peltigera malacea (Ach.) Funck - Heiman (1996: 56)
- Peltigera neckeri Hepp ex Müll. Arg. - Brodo et al. (2001: 514)
- Peltigera phyllidiosa Goffinet & Miadl. - Goffinet & Miadlikowska (1999: 255), Perlmutter (2006: 292)
- Peltigera polydactylon (Neck.) Hoffm. - Perry & Moore (1969: 154 as Peltigera polydactyla), Dey (1978: 20 as Peltigera polydactyla), Becker (1980: 30 as Peltigera polydactyla), Schmitt & Slack (1990: 265 as Peltigera polydactyla), Heiman (1996: 56 as Peltigera polydactyla), Brodo et al. (2001: 517 as Peltigera polydactyla), Perlmutter (2006: 292)
- Peltigera praetextata (Flörke ex Sommerf.) Zopf - Brodo et al. (2001: 518), Perlmutter (2006: 292)
- Peltigera rufescens (Weiss) Humb. - Oosting & Anderson (1937: 290), Perlmutter (2006: 292)
- Peltula cylindrica Wetmore - Brodo et al. (2001: 523), Perlmutter (2006: 293)
- Peltula zahlbruckneri (Hasse) Wetmore - Wetmore (1970: ), Perlmutter (2006: 293)
- Pertusaria amara (Ach.) Nyl. - Schmitt & Slack (1990: 265), Brodo et al. (2001: 527), Perlmutter (2006: 286), Lendemer & Tripp (2008: 62)
- Pertusaria appalachensis Lendemer, R. C. Harris & Elix Lendemer et al. (2008: 80)
- Pertusaria commutata Müll. Arg. - Lendemer & Yahr (2004: 133 as P. copiosa), Perlmutter (2007a: 118)
- Pertusaria epixantha R.C. Harris - Lendemer & Yahr (2004: 126), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 61)
- Pertusaria geminipara (Th. Fr.) C. Knight ex Brodo - Howard (1970: 107 as Ochrolechia geminipara), Perlmutter (2006: 286)
- Pertusaria globularis (Ach.) Tuck. - Dibben (1980: ), Schmitt & Slack (1990: 265), Perlmutter (2006: 286), Lendemer & Tripp (2008: 62)
- Pertusaria hypothamnolica Dibben - Lendemer & Yahr (2004: 127), Perlmutter (2006: 286)
- Pertusaria iners R.C. Harris - Lendemer & Yahr (2004: 135)
- Pertusaria leioplaca DC. - DePriest (2001: 9 as Pertusaria leucostoma), Lendemer & Yahr (2004: 129 as Pertusaria leucostoma)
- Pertusaria macounii (Lamb) Dibben - Schmitt & Slack (1990: 265), Brodo et al. (2001: 529), Perlmutter (2006: 286)
- Pertusaria multipunctoides Dibben - Dibben (1980: ), Schmitt & Slack (1990: 265), Perlmutter (2006: 286), Lendemer & Tripp (2008: 62). ISOTYPE in US.
- Pertusaria neoscotica Lamb - Lendemer & Yahr (2004: 126), Perlmutter (2006: 286), Lendemer & Tripp (2008: 62)
- Pertusaria obruta R.C. Harris - Lendemer & Yahr (2004: 133)
- Pertusaria opthalmiza (Nyl.) Nyl. - Lendemer & Tripp (2008: 62)
- Pertusaria ostiolata Dibben - Schmitt & Slack (1990: 265). ISOTYPE in US.
- Pertusaria paratuberculifera Dibben - Schmitt & Slack (1990: 265), Brodo et al. (2001: 530), Lendemer & Yahr (2004: 122), Perlmutter (2006: 286), Lendemer & Tripp (2008: 62)
- Pertusaria plittiana Erichsen - Brodo et al. (2001: 530), Perlmutter (2006: 286)
- Pertusaria propinqua Müll. Arg. - GBIF (2005: ), Perlmutter (2006: 286)
- Pertusaria pustulata (Ach.) Duby - DePriest (2001: 9), Perlmutter (2006: 286), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 62), Lendemer & Tripp (2008: 62)
- Pertusaria rubefacta Erichsen - Schmitt & Slack (1990: 265), GBIF (2005: ), Perlmutter (2006: 286), Lendemer & Tripp (2008: 62)
- Pertusaria sinusmexicani Dibben - Dibben (1980: ), Perlmutter (2006: 286), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 62)
- Pertusaria subpertusa Brodo - Schmitt & Slack (1990: 265), Brodo et al. (2001: 532), Lendemer & Yahr (2004: 122), Perlmutter (2006: 286), Lendemer & Tripp (2008: 62)
- Pertusaria tetrathalamia (Fée) Nyl. - Dibben (1980: ), Perlmutter (2006: 287)
- Pertusaria texana Müll. Arg. - Brodo et al. (2001: 533), Lendemer & Yahr (2004: 129), Lendemer (2005: 48), Perlmutter (2006: 287), Lendemer & Tripp (2008: 62)
- Pertusaria trachythallina Erichsen - Schmitt & Slack (1990: 265), Brodo et al. (2001: 533), Lendemer & Tripp (2008: 62)
- Pertusaria velata (Turner) Nyl. - Schmitt & Slack (1990: 265), Brodo et al. (2001: 534), Perlmutter (2006: 28), Lendemer & Tripp (2008: 62)
- Pertusaria waghornei Hulting - Dibben (1980: ), Schmitt & Slack (1990: 265)
- Pertusaria xanthodes Müll. Arg. - Brodo et al. (2001: 535), Lendemer & Yahr (2004: 120), Perlmutter (2006: 287), Perlmutter (2007: 27)
- Phaeographis dendritica (Ach.) Müll. Arg. - DePriest (2001: 9), Lendemer & Yahr (2004: 119)
- Phaeographis erumpens (Nyl.) Müll. Arg. - Fink (1935: 113), Culberson (1961: 266)
- Phaeographis illitoraticola ined. - Lendemer & Yahr (2004: 129), Perlmutter (2007a: 118)
- Phaeographis inusta (Ach.) Müll. Arg. - Brodo et al. (2001: 536), Lendemer & Yahr (2004: 120), Perlmutter (2006: 286), Perlmutter (2007: 27), Lendemer & Tripp (2008: 62)
- Phaeographis lobata (Eschw.) Müll. Arg. - Lendemer & Yahr (2004: 129), Perlmutter (2007a: 118)
- Phaeographis sericea (Eschw.) Müll. Arg. - Lendemer & Yahr (2004: 134)
- Phaeographis subtigrina (Vain.) Zahlbr. - Lendemer & Yahr (2004: 134), Lendemer & Tripp (2008: 62)
- Phaeophyscia adiastola (Essl.) Essl. - Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 539), DePriest (2001: 10), Perlmutter (2006: 291)
- Phaeophyscia ciliata (Hoffm.) Moberg - Dey (1978: as Physcia ciliata), McCune et al. (1997: 152), Brodo et al. (2001: 540), DePriest (2001: 10), Perlmutter (2006: 291)
- Phaeophyscia erythrocardia (Tuck.) Essl. - Heiman (1996: 56), McCune et al. (1997: 152)
- Phaeophyscia hirsuta (Mereschk.) Essl. - Brodo et al. (2001: 539 as Phaeophyscia cernohorskyi), Perlmutter (2006: 291)
- Phaeophyscia hispidula (Ach.) Essl. - Perry & Moore (1969: 155 as Physcia setosa), Heiman (1996: 56 as Phaeophyscia imbricata), Brodo et al. (2001: 542), Perlmutter (2006: 291)
- Phaeophyscia insignis (Mereschk.) Moberg - Perlmutter (2006: 291)
- Phaeophyscia orbicularis (Neck.) Moberg - Perry & Moore (1969: 155 as Physcia orbicularis), Dey (1978: 88), Heiman (1996: 56), DePriest (2001: 10), Perlmutter (2006: 291)
- Phaeophyscia pusilloides (Zahlbr.) Essl. - Dey (1978: 89 as Physcia pusilloides), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 543), DePriest (2001: 10), Perlmutter (2006: 291), Lendemer & Tripp (2008: 62)
- Phaeophyscia rubropulchra (Degel.) Essl. - Schmitt & Slack (1990: 265), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 543), DePriest (2001: 10), Lendemer & Yahr (2004: 122), Perlmutter (2006: 291), Lendemer & Tripp (2008: 62)
- Phaeophyscia squarrosa Kashiwadani - Perry & Moore (1969: 154 as Physcia lacinulata), (Moberg 1995: ), Lendemer & Yahr (2004: 122), Perlmutter (2006: 291), Lendemer & Tripp (2008: 62). ISOTYPE in US.
- Phlyctis argena (Spreng.) Flot. - Schmitt & Slack (1990: 265), Brodo et al. (2001: 545)
- Phlyctis ludoviciensis (Müll. Arg.) Lendemer - Schmitt & Slack (1990: 265 as Phlyctidia ludoviciensis), Lendemer & Yahr (2004: 133), Lendemer (2005: 49), Lendemer & Tripp (2008: 62)
- Phylliscum demangeonii (Moug. & Mont.) Nyl. - Yoshimura & Sharp (1968: 109)
- Phyllopsora confusa Swinsc. & Krog - Lendemer & Yahr (2004: 130), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 62)
- Phyllopsora corralina (Eschw.) Müll. Arg. - Lendemer & Tripp (2008: 62)
- Phyllopsora parvifolia (Pers.) Müll. Arg. - Lendemer & Yahr (2004: 122), Perlmutter (2006: 291), Perlmutter (2007a: 118)
- Physcia adscendens (Fr.) H. Olivier - Heiman (1996: 56), Brodo et al. (2001: 549)
- Physcia aipolia (Ehrh. ex Humb.) Fürnr. - Perry & Moore (1969: 154), Dey (1978: 88), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 549), DePriest (2001: 10), Perlmutter (2006: 291)
- Physcia americana G. Merr. - Perry & Moore (1969: 155 as Physcia tribacoides), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 550), DePriest (2001: 10), Lendemer & Yahr (2004: 119), Perlmutter (2006: 291), Perlmutter (2007a: 118)
- Physcia atrostriata Moberg et al. - Dey (1978: 88 as Physcia ciliata), Brodo (2001: 551 as Physcia albicans), Perlmutter (2006: 291)
- Physcia halei J.W. Thomson - Brodo et al. (2001: 555), Lendemer & Tripp (2008: 62)
- Physcia millegrana Degel. - Schmitt & Slack (1990: 265), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 555), DePriest (2001: 10), Lendemer & Yahr (2004: 130), Perlmutter (2006: 291)
- Physcia neogaea R.C. Harris - McCune et al. (1997: 152), DePriest (2001: 10)
- Physcia phaea (Tuck.) J.W. Thomson - Dey (1978: ), Heiman (1996: 56)
- Physcia pseudospeciosa J.W. Thomson - Heiman (1996: 56)
- Physcia pumilior R.C. Harris - Brodo et al. (2001: 556), Perlmutter (2006: 291)
- Physcia sorediosa (Vain.) Lynge - Brodo et al. (2001: 556), Lendemer & Yahr (2004: 132), Perlmutter (2006: 291)
- Physcia stellaris (L.) Nyl. - Perry & Moore (1969: 155), Dey (1978: 89), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 558), DePriest (2001: 10), Lendemer & Tripp (2008: 62)
- Physcia subtilis Degel. - Perry & Moore (1969: 155), Dey (1978: 89), Heiman (1996: 56), Brodo et al. (2001: 558), DePriest (2001: 10), Perlmutter (2006: 291)
- Physcia tribacia (Ach.) Nyl. - Oosting & Anderson (1937: 286)
- Physcia wainioi Räsänen - Perry & Moore (1969: 155)
- Physciella chloantha (Ach.) Essl. Brodo et al. (2001: 560), Perlmutter (2006: 291)
- Physconia detersa (Nyl.) Poelt - Heiman (1996: 56), Brodo et al. (2001: 561)
- Physconia leucoleiptes (Tuck.) Essl. - DePriest (2001: 10)
- Piccolia conspersa (Fée) Hafellner - Lendemer & Yahr (2004: 120)
- Placidium arboreum (Schwein. ex Michener) Lendemer - Perry & Moore (1969: 151 as Dermatocarpon tuckermannii), Brodo et al. (2001: 570 as Placidium tuckermannii), Perlmutter (2006: 286), Lendemer & Tripp (2008: 62)
- Placidium lachneum (Ach.) Breuss - USGS (2005)
- Placidium lacinulatum (Ach.) Breuss - Brodo et al. (2001: 569), Perlmutter (2006: 286)
- Placynthiella icmalea (Ach.) Coppins & P. James - Lendemer & Yahr (2004: 120), Perlmutter (2006: 286)
- Placynthiella uliginosa (Schrad.) Coppins & P. James - Lendemer & Yahr (2004: 126)
- Placynthium nigrum (Hudson) Gray - Brodo et al. (2001: 573)
- Platismatia glauca (L.) W.L. Culb. & C.F. Culb. - Perry & Moore (1969: 155), Dey (1978: 71), Brodo et al. (2001: 574)
- Platismatia tuckermanii (Oakes) W.L. Culb. & C.F. Culb. - Culberson (1958: 26 as Cetraria tuckermannii), Perry & Moore (1969: 155), Dey (1978: 71), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 577), DePriest (2001: 10), Perlmutter (2006: 289), Lendemer & Tripp (2008: 62)
- Polymeridium proponens (Nyl.) R.C. Harris Tucker and Harris (1980: 9 as Campylothelium ampylosporum), Harris (1991: ), Perlmutter (2006: 285)
- Polysporina simplex (Davies) Vezda - Lendemer & Tripp (2008: 62)
- Porina heterospora (Fink ex Hedrick) R.C. Harris - Brodo et al. 2001: 582), Lendemer & Yahr (2004: 122), Perlmutter (2006: 287)
- Porina scabrida R.C. Harris - Lendemer & Yahr (2004: ), Lendemer & Yahr (2004: 134)
- Porpidia albocaerulescens (Wulfen) Hertel & Knoph - Brodo et al. (2001: 583), DePriest (2001: 10), Perlmutter (2006: 291), Lendemer & Tripp (2008: 62)
- Porpidia cinereoatra (Ach.) Hertel & Knoph - NatureServe (2005)
- Porpidia crustulata (Ach.) Hertel & Knoph - Brodo et al. (2001: 584)
- Porpidia diversa (Lowe) Gowan - NatureServe (2005)
- Porpidia herteliana Gowan - NatureServe (2005)
- Porpidia macrocarpa (DC.) Hertel & A. J. Schwab - Fink (1935: 206 as Lecidea platycarpa), NatureServe (2005), Perlmutter (2006: 291)
- Porpidia subsimplex (H. Magn.) Fryday - NatureServe (2005: as Porpidia tahawasiana), Perlmutter (2006: 291), Lendemer & Tripp (2008: 62)
- Porpidia tuberculosa (Sm.) Hertel & Knoph - NatureServe (2005: )
- Protoparmelia badida (Hoffm.) Hafellner - Brodo et al. (2001: 586)
- Protoparmelia isidiata Diederich, Aptroot & Sérus. - Lendemer & Lumbsch (2008: 335)
- Pseudevernia cladonia (Tuck.) Hale & W.L. Culb. - Perry & Moore (1969: 155), Yoshimura & Sharp (1969: 113), Dey (1978: 44), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 589)
- Pseudevernia consocians (Vain.) Hale & W.L. Culb. - Fink (1935: 340 as Evernia ceratea), Perry & Moore (1969: 155), Dey (1978: 44), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 591), DePriest (2001: 10), Lendemer & Tripp (2008: 62)
- Pseudocyphellaria aurata (Ach.) Vain. - Perry & Moore (1969: 155), Schmitt & Slack (1990: 265), Heiman (1996: 56), Brodo et al. (2001: 593), DePriest (2001: 10), Lendemer & Yahr (2004: 132), Perlmutter (2006: 292), Lendemer & Tripp (2008: 62)
- Pseudocyphellaria crocata (L.) Vain. - Perry & Moore (1969: 155), Dey (1978: 23), Becker (1980: 30), McCune et al. (1997: 152), Brodo et al. (2001: 594), Lendemer & Tripp (2008: 62)
- Pseudocyphellaria perpetua McCune & Miadl. - Lendemer & Tripp (2008: 62)
- Pseudoparmelia uleana (Müll. Arg.) Elix & Nash - Lendemer & Yahr (2004: 135)
- Pseudosagedia cestrensis (Michener) R.C. Harris - Lendemer & Yahr (2004: 130 as Trichothelium cestrense), Perlmutter (2006: 287), Lendemer & Tripp (2008: 62)
- Pseudosagedia chlorotica (Ach.) Hafellner & Kalb - Fink (1935: 54 as Porina chlorotica), Lendemer & Tripp (2008: 62)
- Pseudosagedia guentheri (Flot.) Hafellner & Kalb - Harris (1995: 170 as Trichothelium guentheri)
- Pseudosagedia raphidosperma (Müll. Arg.) R.C. Harris - Lendemer & Yahr (2004: 130 as Trichothelium raphidospermum), Lendemer & Tripp (2008: 62)
- Psorula rufonigra (Tuck.) Gotth. Schneider - Brodo et al. (2001: 604)
- Punctelia appalachensis (Culb.) Krog - Perry & Moore (1969: 152 as Parmelia appalachensis), Dey (1978: 59 as Parmelia appalachensis), Schmitt & Slack (1990: 266), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 606), Perlmutter (2006: 289), Lendemer & Tripp (2008: 62)
- Punctelia bolliana (Müll. Arg.) Krog - Fink (1935: 326 as Parmelia frondifera), Hieman (1996: 56), Brodo et al. (2001: 606)
- Punctelia borreri (Sm.) Krog - Schmitt & Slack (1990: 266), Perlmutter (2006: 289)
- Punctelia graminicola (B. de Lesd.) Egan - McCune et al. (1997: 152 as Punctelia semansiana)
- Punctelia missouriensis G. Wilh. & Ladd - McCune et al. (1997: 152), Perlmutter (2006: 290)
- Punctelia perreticulata (Räsänen) G. Wilh. & Ladd - Aptroot (2003: 318)
- Punctelia reddenda (Stirt.) Krog - Dey (1978: 60 as Parmelia reddenda), Schmitt & Slack (1990: 266)
- Punctelia rudecta (Ach.) Krog - Perry & Moore (1969: 153 as Parmelia rudecta), Dey (1978: 60 as Parmelia rudecta), Schmitt & Slack (1990: 266), McCune et al. (1997: 152), Brodo et al. (2001: 608), DePriest (2001: 10), Lendemer & Yahr (2004: 120), Perlmutter (2006: 290), Lendemer & Tripp (2008: 62)
- Punctelia subrudecta (Nyl.) Krog - Perry & Moore (1969: 154 as Parmelia subrudecta), Dey (1978: 62 as Parmelia subrudecta), Schmitt & Slack (1990: 266), Heiman (1996: 56), McAlister (1997: 118), McCune et al. (1997: 152), Brodo et al. (2001: 609), Perlmutter (2006: 290)
- Pycnothelia papillaria Dufour - Robinson (1959: 255 as Cladonia papillaria), Perry & Moore (1969: 155), Dey (1978: 39), Heiman (1996: 56), Brodo et al. (2001: 609), Lendemer & Yahr (2004: 126), Perlmutter (2006: 288), Lendemer & Tripp (2008: 62)
- Pyrenopsis polycocca (Nyl.) Tuck. Culberson (1961: 266)
- Pyrenopsis subfuliginea Nyl. - Degelius (1935: )
- Pyrenula anomala (Ach.) Vain. - Lendemer & Yahr (2004: 132), Perlmutter (2007a: 118)
- Pyrenula aspistea (Ach.) Ach. - Lendemer & Yahr (2004: 134)
- Pyrenula caryae R.C. Harris - Harris (1995: 102), Harris & Ladd (2005: 41)
- Pyrenula citriformis R.C. Harris - Lendemer & Yahr (2004: 134)
- Pyrenula concatervans (Nyl.) R.C. Harris - Lendemer & Yahr (2004: 130)
- Pyrenula cruenta (Mont.) Vain. - Brodo et al. (2001: ), Lendemer & Yahr (2004: 123), Perlmutter (2007a: 118)
- Pyrenula cuyabensis (Malme) R.C. Harris - Harris (1989: )
- Pyrenula laevigata (Pers.) Arnold - Schmitt & Slack (1990: 266)
- Pyrenula leucostoma Ach. - Lendemer & Yahr (2004: 123), Perlmutter (2006: 285), Lendemer & Tripp (2008: 62)
- Pyrenula lucifera R.C. Harris - Harris (1989: )
- Pyrenula micheneri R.C. Harris Harris & Ladd (2005: 208)
- Pyrenula microcarpa Müll. Arg. - Lendemer & Yahr (2004: 133), Perlmutter (2007a: 118)
- Pyrenula nitidula (Bresadola) R.C. Harris ined. - Perlmutter (2006: 285)
- Pyrenula plittii R.C. Harris - Schmitt & Slack (1990: 266)
- Pyrenula pseudobufonia (Rehm) R.C. Harris - Schmitt & Slack (1990: 266), Brodo et al. (2001: 613), DePriest (2001: 10), Lendemer & Yahr (2004: 120), Perlmutter (2006: 285), Lendemer & Tripp (2008: 62)
- Pyrenula punctella (Nyl.) Trevisan - Harris (1989: ), Schmitt & Slack (1990: 266), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 62)
- Pyrenula pyrenuloides (Mont.) R.C. Harris - Perlmutter (2006: 285)
- Pyrenula ravenellii (Tuck.) R.C. Harris - Lendemer & Yahr (2004: 123)
- Pyrenula santensis (Nyl.) Müll. Arg. - Lendemer & Yahr (2004: 123)
- Pyrenula subelliptica (Tuck.) R.C. Harris - Harris (1973: ), Schmitt & Slack (1990: 266)
- Pyrrhospora russula (Ach.) Hafellner - Brodo et al. (2001: 615), Lendemer & Yahr (2004: 120), Lendemer & Tripp (2008: 62)
- Pyrrhospora varians (Ach.) R.C. Harris - DePriest (2001: 10), Lendemer & Yahr (2004: 120), Perlmutter (2006: 288), Lendemer & Tripp (2008: 62). Note: Treated as Lecidea by Hertel
- Pyxine albovirens (G. Meyer) Aptroot - Amtoft (2002: )
- Pyxine caesiopruinosa (Nyl.) Imshaug - Heiman (1996: 56), McCune et al. (1997: 152)
- Pyxine eschweileri (Tuck.) Vain. - DePriest (2001: 10)
- Pyxine sorediata (Ach.) Mont. - Perry & Moore (1969: 155), Dey (1978: 89), Schmitt & Slack (1990: 266), Heiman (1996: 566), McCune et al. (1997: 152), Brodo et al. (2001: 617), DePriest (2001: 10), Perlmutter (2006: 291), Lendemer & Tripp (2008: 62)
- Pyxine subcinerea Stirt. - DePriest (2001: 10), Amtoft (2002: 271), Lendemer & Yahr (2004: 130), Perlmutter (2006: 291)
- Racodium rupestre Pers. - Fink (1935: 141), Perlmutter (2006: 293)
- Ramalina americana Hale - Perry & Moore (1969: 155 erroneously as Ramalina fastigiata), Dey (1978: 81 erroneously as Ramalina fastigiata), Schmitt & Slack (1990: 266), Heiman (1996: 56), McCune et al. (1997: 152), Brodo et al. (2001: 621), DePriest (2001: 10)
- Ramalina complanata (Sw.) Ach. - Lendemer & Yahr (2004: 130)
- Ramalina culbersoniorum La Greca - Brodo et al. (2001: 621), DePriest (2001: 10), Perlmutter (2006: 291), Lendemer & Tripp (2008: 62)
- Ramalina intermedia (Delise ex Nyl.) Nyl. - Perry & Moore (1969: 155), Dey (1978: 81), Heiman (1996: 56), Brodo et al. (2001: 624), Perlmutter (2006: 291)
- Ramalina montagnei De Not. - USGS (2005)
- Ramalina paludosa B. J. Moore - Brodo et al. (2001: 628), Lendemer & Yahr (2004: 120)
- Ramalina pollinaria (Westr.) Ach. - Perry & Moore (1969: 155), Brodo et al. (2001: 624)
- Ramalina stenospora Müll. Arg. - Lendemer & Yahr (2004: 132), Perlmutter (2007: 27), Perlmutter (2007a: 118)
- Ramalina willeyi R. Howe - Brodo et al. (2001: 632), Lendemer & Yahr (2004: 120), Perlmutter (2007: 27), Perlmutter (2007a: 118)
- Ramboldia blochiana Lendemer & R. C. Harris - Lendemer & Harris (2011: 3)
- Ramonia microspora Vezda - Lendemer & Yahr (2004: 120)
- Rhizocarpon geographicum (L.) DC. - Brodo et al. (2001: 635)
- Rhizocarpon hochstetteri (Körb.) Vain. - Brodo et al. (2001: 636)
- Rhizocarpon infernulum (Nyl.) Lynge - Fryday (2002: ), Lendemer & Tripp (2008: 62)
- Rhizocarpon reductum Th. Fr. - Brodo et al. (2001: 637 as Rhizocarpon obscuratum), Perlmutter (2006: 291)
- Rhizocarpon rubescens Th. Fr. - Degelius (1941: )
- Rhizocarpon subgeminatum Eitner - Lendemer & Tripp (2008: 62)
- Rinodina adirondackii H. Magn. - Lendemer & Tripp (2008: 62)
- Rinodina ascociscana (Tuck.) Tuck. - Brodo et al. (2001: 645)
- Rinodina buckii Sheard - Sheard et al. (2012: 126 Type in New York, USA NY)
- Rinodina chrysidiata Sheard - Sheard (xx: xx Type in New York, USA NY)
- Rinodina chrysomelaena (Ach.) Tuck. - Fink (1935: 381), Lendemer & Sheard (2006: 564)
- Rinodina dolichospora Malme - Sheard & Mayrhofer (2002: 105)
- Rinodina efflorescens Malme - Lendemer & Tripp (2008: 62)
- Rinodina maculans Müll. Arg. - Lendemer & Yahr (2004: 130)
- Rinodina subminuta H. Magn. - Schmitt & Slack (1990: 266)
- Rinodina tephraspis (Tuck.) Herre - Mayrhofer et al. (1992: 455), Perlmutter (2006: 291), Perlmutter & Lendemer (2008: 74)
- Rinodina willeyii Sheard & Giralt - Sheard (1995: 125), Lendemer & Tripp (2008: 62)
- Ropalospora chlorantha (Tuck.) S. Ekman - Degelius (1941: as Bacidia chlorantha), Schmitt & Slack (1990: 266 as Bacidia chlorantha)
- Rostania callibotrys (Tuck.) Otálora, P.M. Jørg. & Wedin - GBIF (2005: as Collema callibotrys)
- Santessoniella crossophylla (Nyl.) P. M. Jørg. - Jørgensen (2000b: 702)
- Santessoniella crossophylla (Tuck.) P. M. Jørg. - Lendemer & Anderson (2008: 74)
- Sarcographa tricosa (Ach.) Müll. Arg. - Lendemer & Yahr (2004: 120)
- Sarcogyne similis H. Magn. - Perlmutter (2006: 286)
- Schismatomma glaucescens (Nyl. ex Willey) R. C. Harris Fink (1935: 86 as Arthonia glaucescens), Culberson (1961: 266 as Arthonia glaucescens) Lendemer & Yahr (2004: 130)
- Scoliciosporum chlorococcum (Stenh.) Vezda - Brodo et al. (2001: 653)
- Scoliciosporum umbrinum (Ach.) Arnold - Fink (1935: 231 as Bacidia umbrina), USGS (2005)
- Sphinctrina anglica Nyl. - USGS (2005)
- Sphinctrina tubaeformis A. Massal. - Lendemer & Yahr (2004: 130)
- Staurolemma carolinianum Jørg. - Jørgensen (2004: 392 Type in Uppsala, Sweden UPS)
- Staurothele diffractella (Nyl.) Tuck. - Keever et al. (1951: ), Perlmutter (2006: 286)
- Steinia geophana (Nyl.) Stein - Buck et al. (1999: 132), Perlmutter (2006: 288)
- Stereocaulon dactylophyllum Flörke - Fink (1935: 270 as Stereocaulon coralloides), Perry & Moore (1969: 155), Dey (1978: 25), Heiman (1996: 56), Brodo et al. (2001: 665)
- Stereocaulon dactylophyllum var. occidentale (H. Magn.) Lamb - NatureServe (2005)
- Stereocaulon paschale (L.) Hoffm. - Heiman (1996: 56)
- Stereocaulon pileatum Ach. - Perry & Moore (1969: 155), Dey (1978: 25), Heiman (1996: 56), Brodo et al. (2001: 666)
- Stereocaulon saxatile H. Magn. - Heiman (1996: 56)
- Stereocaulon tennesseense H. Magn. - Dey (1978: 26), Brodo et al. (2001: 669)
- Sticta beauvoisii Delise - Brodo et al. (2001: 671), DePriest (2001: 10), McDonald et al. (2003: 72), Perlmutter (2006: 292), Lendemer & Tripp (2008: 62)
- Sticta carolinensis McDonald - McDonald et al. (2003: 74 First record), Lendemer & Yahr (2004: 123), Lendemer & Tripp (2008: 62)
- Sticta fragilinata McDonald - McDonald et al. (2003: 75 Type in MIN)
- Sticta fuliginosa (Dicks.) Ach. - Fink (1935: 182), Perry & Moore (1969: 156), Dey (1978: 23), Becker (1980: 30 as Sticta weigelii), Schmitt & Slack (1990: 266), Heiman (1996: 56), Brodo et al. (2001: 672), DePriest (2001: 10), McDonald et al. (2003: 77), Perlmutter (2006: 292)
- Sticta limbata (Sm.) Ach. - Dey (1978: 24)
- Sticta sylvatica (Hudson) Ach. - Fink (1935: 182)
- Strangospora pinicola (A. Massal.) Körb. - Lendemer & Tripp (2008: 62)
- Teloschistes chrysophthalmus (L.) Th. Fr. - Brodo et al. (2001: 674)
- Teloschistes flavicans (Sw.) Norman - NatureServe (2005: ), Brodo et al. (2001: 675), Perlmutter (2007a: 119)
- Tephromela atra (Hudson) Hafellner - Brodo et al. (2001: 676), Perlmutter (2006: 291)
- Thelenella muscorum (Fries) Vain. - Harris (1995: 153 as Chromatochlamys muscorum)
- Thelenella rappii R.C. Harris - Lendemer & Yahr (2004: 136)
- Thelidium zwackhii (Hepp) A. Massal. - Lendemer & Yahr (2004: 123)
- Thelomma carolinianum (Ach.) R.C. Harris - Fink (1935: as Cyphelium carolinianum)
- Thelotrema adjectum Nyl. - Lendemer & Yahr (2004: 134)
- Thelotrema defectum Hale - Lendemer & Yahr (2004: 130)
- Thelotrema lathraeum Tuck. - Lendemer & Yahr (2004: 132)
- Thelotrema lepadinum (Ach.) Ach. Culberson (1961: 266)
- Thelotrema monospermum R.C. Harris - Lendemer (2007b: 100 First record)
- Thelotrema subtile Tuck. - Lendemer & Yahr (2004: 123), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 62)
- Topelia aperiens Jørgensen & Vezda - Lendemer & Yahr (2004: 130)
- Trapelia glebulosa (Sm.) J. R. Laundon - Brodo et al. (2001: 685 as Trapelia involuta), Lendemer & Tripp (2008: 62)
- Trapelia placodioides Coppins & P. James - Lendemer & Tripp (2008: 62)
- Trapeliopsis flexuosa (Fr.) Coppins & P. James - Brodo et al. (2001: 686), Lendemer & Yahr (2004: 126)
- Trapeliopsis granulosa (Hoffm.) Lumbsch - Brodo et al. (2001: 687), Lendemer & Yahr (2004: 126), Perlmutter (2006: 286)
- Trapeliopsis viridescens (Schraed.) Coppins & P. James - Sullivan (1996: ), Lendemer & Tripp (2008: 62)
- Tremolecia atrata (Ach.) Hertel - Brodo et al. (2001: 688)
- Trypethelium elutariae Spreng. Perlmutter (2006: 286)
- Trypethelium tropicum (Ach.) Müll. Arg. - Lendemer & Yahr (2004: 123)
- Trypethelium virens Tuck. ex Michener in Darlington - Fink (1935: 62 as T. exocanthum and T. scorites), Brodo et al. (2001: 690), Lendemer & Yahr (2004: 121), Perlmutter (2006: 286), Perlmutter (2007: 27), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 63)
- Tuckermanella fendleri (Nyl.) Essl. - Culberson (1958: 26 as Cetraria fendleri), Perry & Moore (1969: 149 as Cetraria fendleri), McCune et al. (1997: 150 as Cetraria fendleri), Brodo et al. (2001: 693 as Tuckermannopsis fendleri), Perlmutter (2006: 290)
- Tuckermanopsis americana (Spreng.) Hale - Perry & Moore (1969: 149 as Cetraria halei), Dey (1978: 45 as Cetraria halei), Heiman (1996: 56), McCune et al. (1997: 150 as Cetraria americana), Perlmutter (2006: 290)
- Tuckermanopsis ciliaris (Ach.) Gyeln. - Culberson (1958: 26 as Cetraria ciliaris), Perry & Moore (1969: 149 as Cetraria ciliaris), Dey (1978: 45 as Cetraria ciliaris), Heiman (1996: 57), McCune et al. (1997: 150 as Cetraria ciliaris), DePriest (2001: 10), Perlmutter (2006: 290), Lendemer & Tripp (2008: 63)
- Tuckermanopsis orbata (Nyl.) M.J. Lai - Perry & Moore (1969: 149 as Cetraria orbata), Dey (1978: 47 as Cetraria orbata), Heiman (1996: 57), McCune et al. (1997: 150 as Cetraria orbata), Brodo et al. (2001: 694), Perlmutter (2006: 290)
- Umbilicaria caroliniana Tuck. - Fink (1935: 276), Perry & Moore (1969: 156), Dey (1978: 41), Heiman (1996: 57)
- Umbilicaria mammulata (Ach.) Tuck. - Oosting & Anderson (1937: 286 as Umbilicaria dillenii), Perry & Moore (1969: 156), Dey (1978: 41), Heiman (1996: 56). Brodo et al. (2001: 704), Perlmutter (2006: 293), Lendemer & Tripp (2008: 63)
- Umbilicaria muhlenbergii (Ach.) Tuck. - Perry & Moore (1969: 148 as Actinogyra muhlenbergii), Dey (1978: 41), Heiman (1996: 56), Brodo et al. (2001: 704), Perlmutter (2006: 293)
- Umbilicaria phaea Tuck. Fink (1935: 273 as Gyrophora phaea)
- Umbilicaria polyphylla (L.) Baumg. - Fink (1935: 274 as Gyrophora polyphylla), Heiman (1996: 57)
- Umbilicaria vellea (L.) Hoffm. - Heiman (1996: 57)
- Umbilicaria virginis Schaer. - Feige & Lumbsch (2003: 13)
- Usnea amblyoclada (Müll. Arg.) Zahlbr. - Clerc & Herrera-Campos (1997: 287), Brodo et al. (2001: 712), Perlmutter (2006: 290)
- Usnea angulata Ach. - Perry & Moore (1969: 156), Harris & Ladd (2005: 236)
- Usnea baileyi (Stirt.) Zahlbr. - Lendemer & Yahr (2004: 126)
- Usnea cavernosa Tuck. - Degelius (1941: )
- Usnea ceratina Ach. - Dey (1978: 76), Schmitt & Slack (1990: 266), McCune et al. (1997: 152), Brodo et al. (2001: 715), Lendemer & Yahr (2004: 123)
- Usnea cornuta Körb. - Dey (1978: 76 as Usnea confusa), Clerc & Herrera-Campos (1997: 295), McCune et al. (1997: 152), Brodo et al. (2001: 715)
- Usnea dasaea Stirt. - Clerc & Herrera-Campos (1997: 298), McCune et al. (1997: 152)
- Usnea diplotypus Vain. - Dey (1978: 77)
- Usnea entoviolata Motyka - Clerc (2004: ), Lendemer & Tripp (2008: 63)
- Usnea evansii Motyka - Lendemer & Yahr (2004: 120)
- Usnea filipendula Stirt. - Brodo et al. (2001: 718)
- Usnea fragilescens var. mollis (Vain.) Clerc - Dey (1978: 78 as Usnea mollis)
- Usnea fulvoreagens (Räsänen) Räsänen - Dey (1978: 78)
- Usnea halei P. Clerc - Clerc & Herrera-Campos (1997: 291 Protologue) Type in (DUKE)
- Usnea merrillii Mot. - Perry & Moore (1969: 156)
- Usnea mutabilis Stirt. - Hieman (1996: 57), McCune et al. (1997: 152), Brodo et al. (2001: 723), Lendemer & Yahr (2004: 120), Perlmutter (2006: 290), Perlmutter (2007a: 118)
- Usnea occidentalis Mot. - Perry & Moore (1969: 156), McCune et al. (1997: 152)
- Usnea pachyclada Mot. - Perry & Moore (1969: 156)
- Usnea pensylvanica Mot. - Lendemer & Yahr (2004: 123), Perlmutter (2006: 290), Lendemer & Tripp (2008: 63)
- Usnea praetervisa (Asahina) P. Clerc - Clerc (2004: )
- Usnea rubicunda Stirt. - Perry & Moore (1969: 156), Schmitt & Slack (1990: 266), Heiman (1996: 57), Clerc & Herrera-Campos (1997: 300), McCune et al. (1997: 152), Brodo et al.
(2001: 723), DePriest (2001: 10)
- Usnea schadenbergiana Göpp & Stein - Dey (1978: 78 as Usnea hesperina), Schmitt & Slack (1990: 266 as Usnea hesperina), Clerc & Herrera-Campos (1997: 299 as Usnea hesperina), McCune et al. (1997: 152 as Usnea hesperina), Brodo et al. (2001: 720 as Usnea hesperina)
- Usnea silesiaca Mot. - Clerc (1991: )
- Usnea strigosa (Ach.) A. Eat. - Perry & Moore (1969: 156), Dey (1978: 79), Heiman (1996: 57), McCune et al. (1997: 152), Brodo et al. (2001: 724), DePriest (2001: 10), Lendemer & Yahr (2004: 120), Lendemer (2005: 50), Perlmutter (2006: 290), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 63)
- Usnea strigosa subsp. rubiginea (Michx.) I. Tav. - USGS (2005: 9)
- Usnea subfloridana Stirt. - Dey (1978: 79), Schmitt & Slack (1990: 266), McCune et al. (1997: 152), DePriest (2001: 10), Perlmutter (2006: 290)
- Usnea subfusca Sirt. - Dey (1978: 80)
- Usnea subgracilis Vain. - Perlmutter (2006: 290), Lendemer & Tripp (2008: 63)
- Usnea subscabrosa Nyl. ex Mot. - Perry & Moore (1969: 156), Clerc & Herrera-Campos (1997: 300), McCune et al. (1997: 152), Brodo et al. (2001: 725), Lendemer & Yahr (2004: 127), Perlmutter (2006: 290), Perlmutter (2007a: 118), Lendemer & Tripp (2008: 63)
- Usnea trichodea Ach. - Perry & Moore (1969: 156), Dey (1978: 80), Brodo et al. (2001: 726), Lendemer & Yahr (2004: 127), Perlmutter (2006: 290)
- Usnocetraria oakesiana (Tuck.) M. J. Lai & C. J. Wei - Culberson (1958: 26 as Cetraria oakesiana), Perry & Moore (1969: 149 as Cetraria oakesiana), Dey (1978: 46 as Cetraria oakesiana), Schmitt & Slack (1990: 266 as Tuckermannpsis oakesiana), Heiman (1996: 57 as Tuckermannopsis oakesiana), McCune et al. (1997: 150 as Cetraria oakesiana), DePriest (2001: 8 as Allocetraria oakesiana), Lendemer & Tripp (2008: 59 as Allocetraria oakesiana)
- Vainionora americana Kalb, Tønsberg & Elix - Kalb (2004: 326), Lendemer & Tripp (2008: 63)
- Verrucaria baldensis A. Massal. - Lendemer & Yahr (2004: 123)
- Verrucaria calciseda DC. - Lendemer & Yahr (2004: 127)
- Verrucaria nigrescens Pers. - Oosting & Anderson (1939: 753)
- Vezdaea leprosa (P. James) Vezda - Buck et al. (1999: 132), Perlmutter (2006: 293)
- Vulpicida canadensis (Räsänen) J.-E. Mattsson & M. J. Lai - Perlmutter (2006: 290)
- Vulpicida pinastri (Scop.) J.-E. Mattsson & M.J. Lai - Hieman (1996: 57 as Tuckermanopsis pinastri), Perlmutter (2006: 290)
- Vulpicida viridis (Schwein.) J.-E. Mattsson & M.J. Lai - Perry & Moore (1969: 149 as Cetraria viridis), Heiman (1996: 57 as Tuckermannopsis viridis), McCune et al. (1997: 150 as Cetraria viridis), Brodo et al. (2001: 732), Perlmutter (2006: 290)
- Xanthomendoza fulva (Hoffm.) Søchting, Kärnefelt & S. Kondr. - Brodo et al. (2001: 745 as Xanthoria fulva), Perlmutter (2006: 292)
- Xanthomendoza weberi (S. Kondr. & Kärnefelt) L. Lindblom - Lindblom (2006: 7), Perlmutter (2006: 292), Perlmutter (2007: 27)
- Xanthoparmelia conspersa (Ach.) Hale - Oosting & Anderson (1937: 286 as Parmelia conspersa), Oosting & Anderson (1939: 753 as Parmelia conspersa), Perry & Moore (1969: 152 as Parmelia conspersa), Dey (1978: 57 as Parmelia conspersa), Heiman (1996: 57), Brodo et al. (2001: 735), DePriest (2001: 10), Perlmutter (2006: 290), Lendemer & Tripp (2008: 63)
- Xanthoparmelia cumberlandia (Gyeln.) Hale - Dey (1978: 57 as Parmelia cumberlandia), Brodo et al. (2001: 735)
- Xanthoparmelia hypomelaena (Hale) Hale - Hale (1967: 418 as Parmelia hypomeleana)
- Xanthoparmelia monticola (J.P. Dey) Hale - Dey (1978: 58 as Parmelia monticola), Heiman (1996: 57)
- Xanthoparmelia piedmontensis (Hale) Hale - Heiman (1996: 57), Perlmutter (2006: 290)
- Xanthoparmelia plittii (Gyeln.) Hale - Perry & Moore (1969: 153 as Parmelia plittii), Dey (1978: 59 as Parmelia plittii), Heiman (1996: 57), Brodo et al. (2001: 739), DePriest (2001: 10), Perlmutter (2006: 290), Lendemer & Tripp (2008: 63)
- Xanthoparmelia stenophylla (Ach.) Ahti & D. Hawksw. - Brodo et al. (2001: 740 as Xanthoparmelia somloënsis)
- Xanthoparmelia subramigera (Gyelnik) Hale - Heiman (1996: 57), Perlmutter (2006: 290)
- Xanthoparmelia taractica (Kremp.) Hale - Dey (1978: 59 as Parmelia taractica), Heiman (1996: 57)
- Xanthoparmelia tasmanica (Hook. f. & Taylor) Hale - Perry & Moore (1969: 154 as Parmelia tasmanica), Heiman (1996: 57), Perlmutter (2006: 290)
- Xanthoria candelaria (L.) Th. Fr. - USGS (2005: ), Perlmutter (2006: 292)
- Xanthoria elegans (Link) Th. Fr. - Brodo et al. (2001: 744)
- Xanthoria polycarpa (Ehrh.) Oliv. - Dey (1978: 82)
- Xanthoria sorediata (Vain.) Poelt - Heiman (1996: 57)
- Xylographa paralella (Ach. : Fr.) Behlen & Desberger - Brodo et al. (2001: 749)