Checklist of lichens of New York - State (USA)
Version 31 December 2017

 

  1. Absconditella lignicola Vezda & Pisút - Harris (2004: 56), Harris (2006: 53)
  2. Absconditella sphagnorum Vezda & Poelt - Harris (2004: 56)

  3. Acarospora cervina A. Massal. - Harris (2004: 56)
  4. Acarospora fuscata (Schrad.) Arnold - Brodo (1968: 205), Thomson (1997: 24), Harris (2004: 56)
  5. Acarospora glaucocarpa (Wahlenb.) Körb. - Thomson (1997: 25), Harris (2004: 56)
  6. Acarospora moenium (Vain.) Räsänen - Harris (2004: 56)
  7. Acarospora oligospora (Nyl.) Arnold - Harris (2004: 56)
  8. Acarospora sinopica (Wahlenb.) Körb. - Harris (2004: 56)
  9. Acarospora veronensis A. Massal. - Harris (2004: 56)

  10. Acrocordia megalospora (Fink) R. C. Harris - Harris (2004: 56)

  11. Adelolecia kolaensis (Nyl.) Hertel & Rambold - Lowe (1939: as Lecidea conferenda), Thomson (1997:338 as Lecidea conferenda), Harris (2004: 56)

  12. Agonimia gelatinosa (Ach.) M. Brand & Diederich - Harris (2004: 56)

  13. Ahtiana aurescens (Tuck.) A. Thell & Randlane - Harris (2004: 56)

  14. Alectoria fallacina Motyka - Harris (2004: 56)
  15. Alectoria sarmentosa (Ach.) Ach. - Hauck et al. (2005: 5)

  16. Alyxoria varia (Pers.) Ertz & Tehler - Harris (2004: 64 as Opegrapha varia)

  17. Amandinea dakotensis (H. Magn.) P. May & Sheard - Harris (2004: 56)
  18. Amandinea milliaria (Tuck.) P. May & Sheard - Brodo (1968: 256 as Rinodina milliaria), Harris (2004: 56)
  19. Amandinea polyspora (Will. in Tuck.) E. Lay & P. May - Brodo (1968: 254 as Buellia polyspora), Thomson (1997: 137 as Buellia polyspora), Harris (2004: 56)
  20. Amandinea punctata (Hoffm.) Coppins & Scheid. - Brodo (1968: 238 sub Buellia punctata), Thomson (1997: 138 as Buellia punctata), Harris (2004: 56)

  21. Amygdalaria elegantior (H. Magn.) Hertel & Brodo - Thomson (1997: 41)
  22. Amygdalaria panaeola (Ach.) Hertel & Brodo - Thomson (1997: 42), Harris (2004: 56)

  23. Anaptychia crinalis (Schaer.) Vezda - Harris (2004: 56 erroneously as Anaptychia setifera)
  24. Anaptychia palmulata (Michx.) Vain. - Brodo (1968: 262), Harris (2004: 56)

  25. Anisomeridium carinthiacum (J. Steiner) R. C. Harris - Harris (2004: 56)
  26. Anisomeridium polypori (Ellis & Everh.) M. E Barr - Harris (2004: 56), Harris (2006: 53)

  27. Anzia colpodes (Ach.) Stizenb. - Brodo (1968: 240), Harris (2004: 56)

  28. Arctoparmelia centrifuga (L.) Hale - Thomson (1984: 476 as Xanthoparmelia centrifuga), Harris (2004: 56)
  29. Arctoparmelia incurva (Pers.) Hale - Thomson (1984: 478 as Xanthoparmelia incurva), Harris (2004: 56)
  30. Arctoparmelia subcentrifuga (Oxner) Hale - Harris (2004: 56)

  31. Arthonia atra (Pers.) A. Schneider - Harris (2004: 64 as Opegrapha atra)
  32. Arthonia byssacea (Weigel) Almq. - Harris (2004: 56)
  33. Arthonia didyma Körb. - Harris (2004: 56)
  34. Arthonia diffusella Fink ex J. Hedrick - Harris (2004: 56)
  35. Arthonia helvola (Nyl.) Nyl. - Harris (2004: 56), Harris (2006: 53)
  36. Arthonia lapidicola (Taylor) Branth & Rostr. - Harris (2004: 56)
  37. Arthonia mediella Nyl. - Brodo (1968: 150), Harris (2004: 56)
  38. Arthonia polymorpha Ach. - Brodo (1968: 150), Harris (2004: 56)
  39. Arthonia punctiformis Ach. - Brodo (1968: 150), Harris (2004: 56)
  40. Arthonia radiata (Pers.) Ach. - Harris (2004: 56)
  41. Arthonia siderea Degel. - Brodo (1968: 151), Harris (2004: 56)
  42. Arthonia spadicea Leight. - Harris (2004: 56)
  43. Arthonia susa R. C. Harris & Lendemer - Brodo (1968: 151 erroneously as Arthothelium taediosum), Harris (2004: 56 erroneously as Arthothelium taediosum)

  44. Arthothelium spectabile A. Massal. - Harris (2004: 56)

  45. Arthopyrenia cerasi (Schrad.) A. Massal. - Brodo (1968: 146)
  46. Arthopyrenia cinereopruinosa (Schaer.) A. Massal. - Brodo (1968: 146 as Arthopyrenia pinicola)

  47. Arthrorhaphis citrinella (Ach.) Poelt - Harris (2004: 56)

  48. Arthrosporum populorum A. Massal. - Harris (2004: 56)

  49. Aspicilia cinerea (L.) Körb. - Brodo (1968: 216 as Lecanora cinerea), Thomson (1997: 68), Harris (2004: 56)
  50. Aspicilia laevata (Ach.) Arnold - Harris (2004: 56)
  51. Aspicilia verrucigera Hue - Harris (2004: 56)

  52. Athallia holocarpa (Hoffm.) Arup, Frödén & Søchting - Thomson (1997: 164 as Caloplaca holocarpa), Harris (2004: 57 as Caloplaca holocarpa)
  53. Athallia pyracea (Ach.) Arup, Frödén & Søchting - Brodo (1968: 250 as Caloplaca pyracea)

  54. Bacidia arceutina (Ach.) Arnold - Ekman (1996: ), Harris (2004: 56)
  55. Bacidia coprodes (Körb.) Lettau - Thomson (1997: 112 erroneously as Bacidia trachona)
  56. Bacidia laurocerasi (Delise ex Duby) Zahlbr. subsp. laurocerasi - Brodo (1968: 172 as Bacidia atrogrisea)
  57. Bacidia bagliettoana (A. Massal. & De Not.) Jatta - Harris (2004: 56)
  58. Bacidia circumspecta (Nyl. ex Vain.) Malme - Harris (2004: 56)
  59. Bacidia coprodes (Körb.) Lettau - Harris (2004: 57 as Bacidia granosa)
  60. Bacidia laurocerasi (Delise ex Duby) Zahlbr. subsp. laurocerasi - Harris (2004: 57)
  61. Bacidia polychroa (Th. Fr.) Körb. - Harris (2004: 57)
  62. Bacidia rubella (Hoffm.) A. Massal. - Harris (2004: 57), Harris (2006: 53)
  63. Bacidia schweinitzii (Tuck. in W. Darl.) Schneid. - Brodo (1968: 175), Harris (2004: 57), Harris (2006: 53)
  64. Bacidia suffusa (Fr.) A. Schneid. - Harris (2004: 57)

  65. Bacidina chloroticula (Nyl.) Poelt & Vezda - Harris (2004: 57)
  66. Bacidina delicata (Larbal. ex Leight.) V. Wirth & Vezda - Harris (2004: 57)
  67. Bacidina egenula (Nyl.) Vezda - Harris (2004: 57)
  68. Bacidina inundata (Fr.) Vezda - Brodo (1968: 175 as Bacidia inundata), Harris (2004: 57)

  69. Baculifera curtisii (Tuck.) Marbach - Brodo (1968: 253 as Buellia curtisii), Harris (2004: 57 as Buellia curtisii)

  70. Baeomyces rufus (Huds.) Rebent. - Thomson (1984: 52), Harris (2004: 57)

  71. Bagliettoa baldensis (A. Massal.) Vezda - Harris (2004: 69 as Verrucaria baldensis)
  72. Bagliettoa calciseda (DC.) Gueidan & Cl. Roux - Harris (2004: 69 as Verrucaria calciseda)

  73. Bellemerea cinereorufescens (Ach.) Clauzade & Roux - Harris (2004: 57)

  74. Biatora helvola Körb. ex Hellbom - Thomson (1997: 349 as Lecidea helvola)
  75. Biatora longispora (Degel.) Lendemer & Printzen - Harris (2004: 57), Harris (2006: 53)
  76. Biatora pontica Printzen & Tønsberg - Harris (2004: 57)
  77. Biatora printzenii Tønsberg - Harris (2004: 57)
  78. Biatora toensbergii Holien & Printzen - Harris (2004: 57)
  79. Biatora vernalis (L.) Fries - Brodo (1968: 171 as Lecidea vernalis), Thomson (1997: 389 as Lecidea vernalis), Harris (2004: 57)

  80. Bilimbia sabuletorum (Schreb.) Arnold - Thomson (1997: 422 as Mycobilimbia sabuletorum), Harris (2004: 64 as Myxobilimbia sabuletorum), Harris (2006: 53)

  81. Botryolepraria lesdainii (Hue) Canals et al. - Harris (2004: 57)

  82. Brodoa oroarctica (Krog) Goward - Thomson (1984: 239 as Hypogymnia oroarctica)

  83. Bryobilimbia ahlesii (Körb.) Fryday, Printzen & S. Ekman var. ahlesii - Harris (2004: 62 as Lecidea ahlesii), Harris (2004: 62 as Lecidea delincta)
  84. Bryobilimbia ahlesii (Körb.) Fryday, Printzen & S. Ekman var. nemoralis (J. Lowe) Fryday, Printzen & S. Ekman - Lowe (xx: xx as Lecidea nemoralis Type in FH), Harris (2004: 62 as Lecidea nemoralis)
  85. Bryobilimbia diapensiae (Th. Fr.) Fryday, Printzen & S. Ekman - Harris (2004: 62 as Lecidea diapensiae)
  86. Bryobilimbia hypnorum (Lib.) Fryday, Printzen & S. Ekman - Harris (2004: 62 as Lecidea hypnorum)

  87. Bryoria capillaris (Ach.) Brodo & D. Hawksw. - Hauck et al. (2005: 5)
  88. Bryoria furcellata (Fr.) Brodo & D. Hawksw. - Brodo (1968: 242 as Alectoria nidulifera), Harris (2004: 57), Hauck et al. (2005: 5)
  89. Bryoria fuscescens (Gyeln.) Brodo & D. Hawksw. - Harris (2004: 57), Hauck et al. (2005: 5)
  90. Bryoria glabra (Motyka) Brodo & D. Hawksw. - Brodo (1968: 241 as Alectoria glabra)
  91. Bryoria implexa (Hoffm.) Brodo & D. Hawksw. - Harris (2004: 57)
  92. Bryoria nadvornikiana (Gyeln.) Brodo & D. Hawksw. - Harris (2004: 57), Hauck et al. (2005: 5)
  93. Bryoria subcana (Stizenb.) Brodo & D. Hawksw. - Schmull et al. (2002: 87), Harris (2004: 57), Hauck et al. (2005: 5)
  94. Bryoria trichodes (Michx.) Brodo & D. Hawksw. subsp. trichodes - Harris (2004: 57)

  95. Buellia arnoldii Servít - Harris (2004: 60 as Hafellia arnoldii)
  96. Buellia badia Tuck. - Brodo (1968: 255 as Buellia turgescens), Harris (2004: 57 as Buellia turgescens)
  97. Buellia disciformis (Fr.) Muss. - Thomson (1997: 129), Harris (2004: 60 as Hafellia disciformis)
  98. Buellia erubescens Arnold - Brodo (1968: 255 as Buellia stillingiana), Harris (2004: 57 as Buellia stillingiana)
  99. Buellia griseovirens (Sm.) Almborn - Harris (2004: 57)
  100. Buellia schaereri De Not. - Harris (2004: 57)
  101. Buellia spuria (Schaer.) Anzi - Harris (2004: 57)
  102. Buellia stigmatea Tuck. - Brodo (1968: 255)

  103. Caeruleum heppii (Nägeli ex Körb.) K. Knudsen & B. Abbott - Harris (2004: 64 as Myriospora immersa)

  104. Calicium glaucellum Ach. - Harris (2004: 57), Hauck et al. (2005: 5)
  105. Calicium parvum Tibell - Harris (2004: 57)
  106. Calicium quercinum Pers. - Harris (2004: 57)
  107. Calicium salicinum Pers. - Harris (2004: 57)
  108. Calicium trabinellum (Ach.) Ach. - Harris (2004: 57)

  109. Calogaya lobulata (Flörke) Arup, Frödén & Søchting - Harris (2004: 57 as Caloplaca lobulata)

  110. Caloplaca atroalba (Nyl.) Zahlbr. - Harris (2004: 61 as Lecania perproxima)
  111. Caloplaca camptidia (Tuck.) Zahlbr. - Brodo (1968: 248), Wetmore (1994: ), Harris (2004: 57)
  112. Caloplaca cerina (Ehrh. in Hoff.) Th. Fr. - Brodo (1968: 248), Thomson (1997: 154), Harris (2004: 57)
  113. Caloplaca citrina (Hoffm.) Th. Fr. - Brodo (1968: 249), Thomson (1997: 155), Harris (2004: 57)
  114. Caloplaca obscurella (Körb.) Th. Fr. - Wetmore (1994: ), Harris (2004: 57)
  115. Caloplaca pollinii (A. Massal.) Jatta - Harris (2004: 57)
  116. Caloplaca saxicola (Hoffm.) Nordin - Harris (2004: 57)
  117. Caloplaca sideritis (Tuck.) Zahlbr. - Harris (2004: 57)
  118. Caloplaca stillicidiorum (Vahl) Lynge - Harris (2004: 57)

  119. Candelaria concolor (Dicks.) Stein - Brodo (1968: 225), Brodo (1968: 225 as Candelaria concolor var. effusa), Harris (2004: 57)
  120. Candelaria fibrosa (Fr.) Müll. Arg. - Harris (2004: 58)

  121. Candelariella aurella (Hoffm.) Zahlbr. - Brodo (1968: 224), Thomson (1997: 182), Harris (2004: 58)
  122. Candelariella efflorescens Harris & Buck - Harris (1987: 4), Thomson (1997: 185), Harris (2004: 58)
  123. Candelariella vitellina (Hoffm.) Müll. Arg. - Brodo (1968: 225), Thomson (1997: 189), Harris (2004: 58)
  124. Candelariella xanthostigma (Ach.) Lettau - Harris (2004: 58), Harris (2006: 53)

  125. Carbonicola anthracophila (Nyl.) Bendiksby & Timdal - Brodo (1968: 166 as Lecidea anthracophila), Harris (2004: 61 as Hypocenomyce anthracophila)

  126. Catillaria chalybeia (Borrer) A. Massal. - Thomson (1997: 196)
  127. Catillaria lenticularis (Ach.) Ach. - Harris (2004: 58)
  128. Catillaria nigroclavata (Nyl.) Schuler - Brodo (1968: 171 as C. glauconigrans), Thomson (1997: 197 as Catillaria glauconigra), Harris (2004: 58)

  129. Cecidonia xenophana (Körb.) Triebel & Rambold - Lowe (1939: Type as Lecidea columnata), Harris (2004: 62 as Lecidea columnata)

  130. Cetraria aculeata (Schreb.) Fr. - Thomson (1984: 198 sub Cornicularia aculeata)
  131. Cetraria arenaria Kärnefelt - Harris (2004: 58)
  132. Cetraria ericetorum Opiz subsp. ericetorum - Thomson (1984: 79)
  133. Cetraria ericetorum Opiz subsp. reticulata (Räsänen) Kärnefelt - Harris (2004: 58)
  134. Cetraria islandica (L.) Ach. - Brodo (1968: 239), Thomson (1984: 84)
  135. Cetraria laevigata Rass. - Thomson (1984: 88), Harris (2004: 58)
  136. Cetraria muricata (Ach.) Eckfeldt - Harris (2004: 58)

  137. Cetrariella commixta(Nyl.) A. Thell & Kärnefelt - Thomson (1984: 75 as Cetraria commixta)
  138. Cetrariella delisei (Schaer.) Kärnefelt & A. Thell - Thomson (1984: 77 as Cetraria delisei), Harris (2004: 58)

  139. Cetrelia cetrarioides (Duby) W. L. Culb. & C. F. Culb. - Harris (2004: 58)
  140. Cetrelia chicitae (W. L. Culb.) W. L. Culb. & C. F. Culb. - Harris (2004: 58)
  141. Cetrelia olivetorum (Nyl.) W. L. Culb. & C. F. Culb. - Brodo (1968: 231 sub Parmelia olivetorum), Harris (2004: 58)

  142. Chaenotheca brunneola (Ach.) Müll. Arg. - Harris (2004: 58)
  143. Chaenotheca chrysocephala (Ach.) Th. Fr. - Harris (2004: 58), Hauck et al. (2005: 5)
  144. Chaenotheca ferruginea (Turner ex Sm.) Mig. - Harris (2004: 58), Hauck et al. (2005: 5)
  145. Chaenotheca furfuracea (L.) Tibell - Thomson (1997: 210 as Coniocybe furfuracea), Harris (2004: 58)
  146. Chaenotheca hygrophila Tibell - Harris (2004: 58)
  147. Chaenotheca laevigata Nádv. - Harris (2004: 58)
  148. Chaenotheca phaeocephala (Turn.) Th. Fr. - Brodo (1968: 153)
  149. Chaenotheca stemonea (Ach.) Müll. Arg. - Harris (2004: 58)
  150. Chaenotheca trichialis (Ach.) Th. Fr. - Harris (2004: 58)
  151. Chaenotheca xyloxena Nádv. - Harris (2004: 58)

  152. Chrismofulvea dialyta (Nyl.) Tuck. - Brodo (1968: 253 as Buellia dialyta), Harris (2004: 57 as Buellia dialyta)

  153. Chrysothrix caesia (Flot.) Ertz & Tehler - Brodo (1968: 150 as Arthonia caesia), Harris (2004: 56 as Arthonia caesia), Hauck et al. (2005: 5 as Arthonia caesia), Harris (2006: 53 as Arthonia caesia)
  154. Chrysothrix candelaris (L.) J. R. Laundon - Harris (2004: 58)

  155. Circinaria caesiocinerea (Nyl. ex Malbr.) A. Nordin, Savic & Tibell - Brodo (1968: 213 as Lecanora caesiocinerea), Harris (2004: 56 as Aspicilia caesiocinerea)

  156. Cladonia acuminans R.C. Harris - Harris (2009: xxx Type in New York, USA NY)
  157. Cladonia acuminata (Ach.) Norrlin - Harris (2004: 58), Harris (2004: 58 as Cladonia acuminata var. norrlinii)
  158. Cladonia amaurocraea (Flörke) Schaer. - Thomson (1984: 107), Harris (2004: 58)
  159. Cladonia apodocarpa Robb. - Brodo (1968: 192), Harris (2004: 58)
  160. Cladonia arbuscula (Wallr.) Rabenh. - Brodo (1968: 201), Thomson (1984: 110), Harris (2004: 58)
  161. Cladonia atlantica Evans - Brodo (1968: 193), Harris (2004: 58)
  162. Cladonia beaumontii (Tuck.) Vain. - Brodo (1968: 194), Harris (2004: 58)
  163. Cladonia borealis Stenroos - Harris (2004: 58)
  164. Cladonia boryi Tuck. - Brodo (1968: 197), Harris (2004: 58)
  165. Cladonia botrytes (Hagen) Willd. - Harris (2004: 58)
  166. Cladonia brevis Sandst. - Brodo (1968: 185), Harris (2004: 58)
  167. Cladonia caespiticia (Pers.) Flörke - Brodo (1968: 183), Harris (2004: 58)
  168. Cladonia cariosa (Ach.) Spreng. - Brodo (1968: 184), Harris (2004: 58)
  169. Cladonia carneola (Fr.) Fr. - Brodo (1968: 182), Harris (2004: 58)
  170. Cladonia caroliniana Tuck. - Harris (2004: 58)
  171. Cladonia cenotea (Ach.) Schaer. - Harris (2004: 58)
  172. Cladonia chlorophaea (Flörke in Sommerf) Sprengel - Brodo (1968: 187), Thomson (1984: 119), Harris (1987: 4), Harris (2004: 58)
  173. Cladonia coniocraea (Flörke) Sprengel em. Sandst. - Brodo (1968: 189), Thomson (1984: 122), Harris (2004: 58), Hauck et al. (2005: 5)
  174. Cladonia conista (Ach.) Robb. - Brodo (1968: 189), Harris (2004: 58)
  175. Cladonia cornuta (L.) Hoffm. subsp. cornuta - Thomson (1984: 124), Harris (2004: 58)
  176. Cladonia crispata (Ach.) Flot. var. crispata - Harris (2004: 58)
  177. Cladonia cristatella Tuck. - Brodo (1968: 181), Harris (2004: 58)
  178. Cladonia cryptochlorophaea Asah. - Thomson (1984: 126), Harris (2004: 58)
  179. Cladonia cyanipes (Somm.) Nyl. - Thomson (1984: 127), Harris (2004: 58)
  180. Cladonia cylindrica (Evans) Evans - Brodo (1968: 190), Harris (2004: 58)
  181. Cladonia dahliana Kristinsson - Harris (2004: 59)
  182. Cladonia decorticata (Flörke) Sprengel - Harris (2004: 59)
  183. Cladonia deformis (L.) Hoffm. - Brodo (1968: 182), Thomson (1984: 129), Harris (2004: 59)
  184. Cladonia didyma (Fée) Vain. - Brodo (1968: 181), Harris (2004: 59)
  185. Cladonia didyma (Fée) Vain. var. vulcanica (Zoll. & Moritzi) Vain. - Brodo (1968: 180 as Cladonia vulcanica) in Ahti (1993: 101) als C. vulcanica
  186. Cladonia digitata (L.) Hoffm. - Harris (2004: 59), Hauck et al. (2005: 5)
  187. Cladonia dimorphoclada Robbins - Brodo (1968: 197 erroneously as Cladonia caroliniana), Harris (2004: 59)
  188. Cladonia evansii Abbayes - Ahti (1961: 25), Brodo (1968: 198), Harris (2004: 59)
  189. Cladonia farinacea (Vain.) Evans - Brodo (1968: 195), Harris (2004: 59)
  190. Cladonia fimbriata (L.) Fr. - Brodo (1968: 188), Thomson (1984: 133), Harris (2004: 59), Hauck et al. (2005: 5)
  191. Cladonia floerkeana (Fr.) Flörke - Brodo (1968: 179), Harris (2004: 59)
  192. Cladonia floridana Vain. - Brodo (1968: 194), Harris (2004: 59)
  193. Cladonia furcata (Huds.) Schrad. - Brodo (1968: 196), Harris (2004: 59), Harris (2006: 53)
  194. Cladonia glauca Flörke - Harris (2004: 59)
  195. Cladonia gracilis (L.) Willd. subsp. elongata (Wulfen) Vain. - Harris (2004: 59)
  196. Cladonia gracilis (L.) Willd. subsp. gracilis - Thomson (1984: 137 as Cladonia gracilis var. gracilis), Harris (2004: 59 as Cladonia gracilis var. gracilis)
  197. Cladonia gracilis (L.) Willd. subsp. turbinata (Ach.) Ahti - Thomson (1984: 136), Harris (2004: 59)
  198. Cladonia grayi Merrl. - Thomson (1984: 139), Harris (2004: 59)
  199. Cladonia incrassata Flörke - Brodo (1968: 181), Harris (2004: 59)
  200. Cladonia macilenta Hoffm. - Brodo (1968: 180), Brodo (1968: 180 as Cladonia bacillaris), Thomson (1984: 111 as Cladonia bacillaris), Harris (2004: 59 incl. Cladonia bacillaris), Hauck et al. (2005: 5)
  201. Cladonia macrophylla (Schaer.) Stenh. - Thomson (1984: 141), Harris (2004: 59)
  202. Cladonia mateocyatha Robbins - Brodo (1968: 186), Harris (2004: 59)
  203. Cladonia maxima (Asahina) Ahti - Thomson (1984: 145), Harris (2004: 59)
  204. Cladonia merochlorophaea Asahina - Thomson (1984: 143), Harris (2004: 59)
  205. Cladonia mitis Sandst. - Brodo (1968: 203), Harris (2004: 59)
  206. Cladonia multiformis G. Merr. - Brodo (1968: 194), Harris (2004: 59)
  207. Cladonia ochrochlora Flörke - Harris (2004: 59)
  208. Cladonia parasitica (Hoffm.) Hoffm. - Brodo (1968: 192), Harris (2004: 59)
  209. Cladonia petrophila R. C. Harris - Harris (1992: 329 First record), Harris (2004: 59)
  210. Cladonia peziziformis (With.) J. R. Laundon - Brodo (1968: 184 as Cladonia capitata), Harris (2004: 59)
  211. Cladonia phyllophora Ehrh. ex Hoffm. - Harris (2004: 59)
  212. Cladonia piedmontensis G. Merr. - Brodo (1968: 183), Harris (2004: 59)
  213. Cladonia pleurota (Flörke) Schaer. - Brodo (1968: 182), Thomson (1984: 154), Harris (2004: 59)
  214. Cladonia pocillum (Ach.) Grogn. - Harris (2004: 59)
  215. Cladonia pyxidata (L.) Hoffm. - Brodo (1968: 187), Thomson (1984: 158), Harris (2004: 59), Hauck et al. (2005: 5), Harris (2006: 53)
  216. Cladonia ramulosa (With.) J. R. Laundon - Brodo (1968: 191 as Cladonia pityrea), Harris (2004: 59)
  217. Cladonia rangiferina (L.) G. Web. in Wigg. - Brodo (1968: 201), Thomson (1984: 159), Harris (2004: 59), Harris (2006: 53)
  218. Cladonia rappii A. Evans - Brodo (1968: 186 erroneously as Cladonia calycantha), Harris (2004: 59 as Cladonia rappii var. exilior)
  219. Cladonia rei Schaer. - Brodo (1968: 190 as Cladonia nemoxyna), Harris (2004: 59)
  220. Cladonia robbinsii Evans - Brodo (1968: 183), Harris (2004: 59)
  221. Cladonia santensis Tuck. - Brodo (1968: 193), Harris (2004: 59)
  222. Cladonia scabriuscula (Del. in Duby) Nyl. - Brodo (1968: 195), Thomson (1984: 160), Harris (2004: 59)
  223. Cladonia simulata Robb. - Brodo (1968: 191), Harris (2004: 59)
  224. Cladonia subcariosa Vain. - Harris (2004: 59 as Cladonia sobolescens)
  225. Cladonia squamosa (Scop.) Hoffm. - Brodo (1968: 193), Thomson (1984: 161), Harris (2004: 59), Hauck et al. (2005: 5)
  226. Cladonia stellaris (Opiz) Pouzar & Vezda - Brodo (1968: 199 as Cladonia alpestris), Thomson (1984: 163), Harris (2004: 59)
  227. Cladonia strepsilis (Ach.) Grognot - Brodo (1968: 183), Harris (2004: 59)
  228. Cladonia stygia (Fr.) Ruoss - Harris (2004: 59)
  229. Cladonia subcariosa Nyl. - Brodo (1968: 184), Brodo (1968: 185 as Cladonia clavulifera), Harris (2004: 59 as Cladonia polycarpoides)
  230. Cladonia submitis Evans - Brodo (1968: 202), Harris (2004: 59)
  231. Cladonia subtenuis (Abb.) Evans f. subtenuis - Brodo (1968: 199), Harris (2004: 59), Harris (2006: 53)
  232. Cladonia subtenuis (Abb.) Evans f. cinerea Ahti - Brodo (1968: 199)
  233. Cladonia subulata (L.) F. H. Wiggers - Harris (2004: 59)
  234. Cladonia sulphurina (Michx.) Fr. - Thomson (1984: 169), Harris (2004: 59)
  235. Cladonia terrae-novae Ahti - Brodo (1968: 200), Harris (2004: 59)
  236. Cladonia turgida Ehrh. ex Hoffm. - Thomson (1984: 172), Harris (2004: 59)
  237. Cladonia uncialis (L.) Weber ex F. H. Wigg. - Brodo (1968: 197), Thomson (1984: 173), Harris (2004: 59)
  238. Cladonia verticillata (Hoffm.) Schaer. - Brodo (1968: 185), Thomson (1984: 174), Harris (2004: 59)
  239. Cladonia wainioi Savicz - Harris (2004: 59)

  240. Clauzadea monticola (Ach.) Hafellner & Bellem. - Harris (2004: 59)

  241. Clauzadeana macula (Taylor) Coppins & Rambold - Harris (2004: 60)

  242. Coccocarpia palmicola (Spreng.) Arv. & D. J. Galloway - Harris (2004: 60)

  243. Coenogonium luteum (Dicks.) Kalb & Lücking - Brodo (1968: 159 as Dimerella lutea), Harris (2004: 60)
  244. Coenogonium pineti (Schrad. ex Ach.) Lücking & Lumbsch - Brodo (1968: 159 as Dimerella diluta), Harris (2004: 60), Harris (2006: 53)

  245. Collema flaccidum (Ach.) Ach. - Thomson (1984: 186), Harris (2004: 60)
  246. Collema furfuraceum (Schaer.) Du Rietz - Thomson (1984: 187), Harris (2004: 60)
  247. Collema nigrescens (Huds.) DC. - Harris (2004: 60)
  248. Collema ryssoleum (Tuck.) A. Schneider - Harris (2004: 60)
  249. Collema subflaccidum Degel. - Harris (2004: 60), Brodo (1968: 160 erroneously as Collema subfurvum)

  250. Collemopsidium angermannicum (Degel.) A. Nordin - Harris (2004: 66 as Pyrenocollema strontianense)

  251. Cresponea chloroconia (Tuck.) Egea & Torrente - Harris (2006: 53), Harris (2004: 60)

  252. Cryptothele granuliforme (Nyl.) Henssen - Thomson (1997: 516 as Pyrenopsidium granuliforme)

  253. Cyphelium lucidum (Th. Fr.) Th. Fr. - Selva (1998: ), Harris (2004: 60)
  254. Cyphelium tigillare (Ach.) Ach. - Thomson (1997: 214), Harris (2004: 60)

  255. Cystocoleus ebeneus (Dillwyn) Thwaites - Harris (2004: 60)

  256. Dermatocarpon americanum Vain. - Harris (2004: 60)
  257. Dermatocarpon intestiniforme (Körb.) Hasse - Harris (2004: 60)
  258. Dermatocarpon luridum (With.) J. R. Laundon - Thomson (1984: 213 as Dermatocarpon fluviatile), Harris (2004: 60)
  259. Dermatocarpon miniatum (L.) W. Mann - Brodo (1968: 155), Thomson (1984: 219)

  260. Dibaeis baeomyces (L.f.) Rambold & Hertel - Brodo (1968: 179 as Baeomyces roseus), Thomson (1984: 51 as Baeomyces roseus), Harris (2004: 60)

  261. Dictyocatenulata alba Finley & E. F. Morris - Harris (2004: 60)

  262. Dimelaena oreina (Ach.) Norman - Brodo (1968: 257 sub Rinodina oreina), Thomson (1997: 216), Harris (2004: 60)

  263. Diploschistes muscorum (Scop.) R. Sant. subsp. muscorum - Harris (2004: 60)
  264. Diploschistes scruposus (Schreb.) Norm. - Brodo (1968: 159), Thomson (1997: 218), Harris (2004: 60)

  265. Diplotomma alboatrum (Hoffm.) Flot. - Harris (2004: 57 as Buellia alboatra)
  266. Diplotomma venustum (Körb.) Körb. - Harris (2004: 57 as Buellia venusta)

  267. Dirinaria frostii (Tuck.) Hale & W. L. Culb. - Harris (2004: 60)

  268. Enchylium bachmanianum (Fink.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 179 as Collema bachmanianum), Harris (2004: 60 as Collema bachmanianum)
  269. Enchylium coccophorum (Tuck.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 60 as Collema coccophorum)
  270. Enchylium conglomeratum (Hoffm.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 60 as Collema conglomeratum)
  271. Enchylium polycarpon (Hoff.) Otálora, P. M. Jørg. & Wedin -Thomson (1984: 190 as Collema polycarpon)
  272. Enchylium tenax (Sw.) Gray - Harris (2004: 60 as Collema tenax)

  273. Endocarpon diffractellum (Nyl.) Gueidan & Cl. Roux - Harris (2004: 68 as Staurothele diffractella)
  274. Endocarpon pusillum Hedw. - Harris (1987: 4), Harris (2004: 60)

  275. Eopyrenula intermedia Aptroot - Harris (2004: 60)

  276. Ephebe lanata (L.) Vain. - Thomson (1984: 225), Harris (2004: 60)

  277. Evernia mesomorpha Nyl. - Brodo (1968: 241), Thomson (1984: 229), Harris (2004: 60), Hauck et al. (2005: 5)
  278. Evernia prunastri (L.) Ach. - Harris (1987: 4), Harris (2004: 60)

  279. Flavocetraria cucullata (Bellardi) Kärnefelt & A. Thell - Thomson (1984: 76 as Cetraria cucullata), Harris (2004: 60)
  280. Flavocetraria nivalis (L.) Kärnefelt & A. Thell - Thomson (1984: 92 as Cetraria nivalis), Harris (2004: 60)

  281. Flavoparmelia caperata (L.) Hale - Brodo (1968: 228 sub Parmelia caperata), Harris (1987: 4), Harris (2004: 60)

  282. Flavopunctelia flaventior (Stirton) Hale - Harris (2004: 60)
  283. Flavopunctelia soredica (Nyl.) Hale - Hauck et al. (2005: 5)

  284. Foraminella ambigua (Wulf. in Jacq.) Nyl. - Brodo (1968: 226 as Parmeliopsis ambigua), Harris (2004: 64 as Parmeliopsis ambigua)

  285. Fuscidea arboricola Coppins & Tønsberg - Harris (2004: 60)
  286. Fuscidea lowensis (H. Magn.) Anderson & Hertel - Magnusson (1936: 11 Type in Uppsala, Sweden UPS), Hertel (1981: 450), Thomson (1997: 232), Harris (2004: 60), Fryday (2008: 306)
  287. Fuscidea mollis (Wahlenb.) V. Wirth & Vezda - Thomson (1997: 233)
  288. Fuscidea praeruptorum (Du Rietz & H. Magn.) V. Wirth & Vezda - Lowe (1939: as Lecidea praeruptorum), Harris (2004: 60)
  289. Fuscidea pusilla Tønsberg - Harris (2004: 60)
  290. Fuscidea recensa (Stirt.) Hertel, V. Wirth & Vezda - Thomson (1997: 234), Harris (2004: 60)
  291. Fuscidea scrupulosa (Eckf.) Fryday - Magnusson (1936: 10 as Lecidea kochiana var. subreagens Type in Upsala, Sweden UPS), Oberhollenzer & Wirth (1984: 575 as Fuscidea subreagens), Harris (2004: 60 as Fuscidea subreagens)

  292. Fuscopannaria leucosticta (Tuck.) P. M. Jørg. - Harris (2004: 60)

  293. Gassicurtia vernicoma (Tuck.) Marbach - Harris (2004: 57 as Buellia vernicoma)

  294. Graphis scripta (L.) Ach. - Brodo (1968: 158), Harris (2004: 60)

  295. Gyalecta jenensis (Batsch) Zahlbr. - Harris (2004: 60)
  296. Gyalecta russula (Körb. ex Nyl.) Baloch, Lumbsch & Wedin - Thomson (1997: 117 as Belonia russula)

  297. Gyalolechia flavorubescens (Hudson) Søchting, Frödén & Arup - Brodo (1968: 248 as Caloplaca aurantiaca), Harris (2004: 57 as Caloplaca flavorubescens)
  298. Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup - Brodo (1968: 250 as Caloplaca flavovirescens), Thomson (1997: 161 as Caloplaca flavovirescens), Harris (2004: 57 as Caloplaca flavovirescens)
  299. Gyalolechia xanthostigmoidea (Räsänen) Søchting, Frödén & Arup - Brodo (1968: 249 as Caloplaca discolor), Thomson (1997: 158 as Caloplaca discolor), Harris (2004: 57 as Caloplaca discolor)

  300. Haematomma ochroleucum (Necker) J. R. Laundon var. ochroleucum - Hauck et al. (2005: 5)

  301. Helocarpon crassipes (Th. Fr.) Coppins - Thomson (1997: 414 as Micarea crassipes), Harris (2004: 63 as Micarea crassipes)

  302. Hertelidea botryosa (Fr.) Printzen & Kantvilas - Brodo (1968: 165 as Lecidea botryosa), Thomson (1997: 332 as Lecidea botryosa)

  303. Heterodermia echinata (Taylor)W. L. Culb. - Harris (2004: 60)
  304. Heterodermia galactophylla (Tuck.)W. L. Culb. - Harris (2004: 60)
  305. Heterodermia hypoleuca (Muhlenberg) Trevisan - Harris (2004: 61)
  306. Heterodermia leucomela (L.) Poelt - Harris (2004: 61)
  307. Heterodermia obscurata (Nyl.) Trevisan - Brodo (1968: 262 sub Anaptychia obscurata), Harris (2004: 61)
  308. Heterodermia pseudospeciosa (Kurok.) W. L. Culb. - Brodo (1968: 263 as Anaptychia pseudospeciosa)
  309. Heterodermia speciosa (Wulfen) Trevisan - Harris (2004: 61)
  310. Heterodermia squamulosa (Degel.) W. L. Culb. - Harris (2004: 61)

  311. Heppia adglutinata (Kremp.) A. Massal. - Harris (2004: 60)
  312. Heppia lutosa (Ach.) Nyl. - Thomson (1997: 244)

  313. Hertelidea botryosa (Fr.) Printzen & Kantvilas - Harris (2004: 60)

  314. Hyperphyscia adglutinata (Flörke) Mayrh. & Poelt - Harris (2004: 61)
  315. Hyperphyscia syncolla (Nyl.) Kalb - Harris (2004: 61)

  316. Hypocenomyce scalaris (Ach. ex Lilj.) M. Choisy - Brodo (1968: 170 sub Lecidea scalaris), Thomson (1997: 248), Harris (2004: 61), Hauck et al. (2005: 5)

  317. Hypogymnia appalachensis Lendemer & R. C. Harris - Harris (2004: 61)
  318. Hypogymnia krogiae Ohlsson - Harris (2004: 61), Hauck et al. (2005: 5)
  319. Hypogymnia physodes (L.) Nyl. - Brodo (1968: 237), Thomson (1984: 241), Harris (2004: 61), Hauck et al. (2005: 5)
  320. Hypogymnia tubulosa (Schaer.) Havaas - Harris (2004: 61)
  321. Hypogymnia vittata (Ach.) Parrique - Thomson (1984: 243), Harris (2004: 61)

  322. Hypotrachyna livida (Taylor) Hale - Brodo (1968: 230 as Parmelia livida), Harris (2004: 61)
  323. Hypotrachyna rockii (Zahlbr.) Hale - Harris (2004: 61)

  324. Icmadophila ericetorum (L.) Zahlbr. - Thomson (1997: 249)Harris (2004: 61)

  325. Imshaugia aleurites (Ach.) S. F. Meyer - Brodo (1968: 226 as Parmeliopsis aleurites), Thomson (1984: 321 as Parmeliopsis aleurites), Harris (2004: 61), Hauck et al. (2005: 5)
  326. Imshaugia placorodia (Ach.) S. F. Meyer - Brodo (1968: 226 as Parmeliopsis placorodia), Harris (2004: 61)

  327. Ionaspis alba Lutzoni - Harris (2004: 61)
  328. Ionaspis lacustris (With.) J. R. Laundon - Thomson (1997: 245 as Hymenelia lacustris), Harris (2004: 61)
  329. Ionaspis odora (Ach. in Schaer.) Th. Fr. ex Stein - Brodo (1968: 213)

  330. Japewia subaurifera Muhr & Tønsberg - Hauck et al. (2005: 5)
  331. Japewia tornoensis (Nyl.) Tønsberg - Lowe (1939: as Lecidea), Thomson (1997: 387 as Lecidea tornoensis), Harris (2004: 61)

  332. Lasallia papulosa (Ach.) Llano - Brodo (1968: 204 as Umbilicaria papulosa), Thomson (1984: 245), Harris (2004: 61)
  333. Lasallia pensylvanica (Hoffm.) Llano - Thomson (1984: 246), Harris (2004: 61)

  334. Lathagrium undulatum (Flot.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 60 as Collema undulatum var. granulosum)

  335. Lecania cuprea (A. Massal.) van den Boom & Coppins - Harris (2004: 61)
  336. Lecania cyrtella (Ach.) Th. Fr. - Harris (2004: 61)
  337. Lecania naegelii (Hepp) Diederich & P. Boom - Harris (2004: 61)

  338. Lecanora albella (Pers.) Ach. var. albella - Imshaug & Brodo (1966: ), Harris (2004: 61)
  339. Lecanora albella (Pers.) Ach. var. rubescens (Imsh. & Brodo) Lumbsch - Harris (2004: 61)
  340. Lecanora albellula Nyl. - Thomson (1997: 299 as Lecanora piniperda)
  341. Lecanora albescens (Hoffm.) Branth & Rostr. - Harris (2004: 61)
  342. Lecanora allophana (Ach.) Nyl. - Thomson (1997: 266), Harris (2004: 61)
  343. Lecanora argentea Oksner & Volkova - Harris (2004: 61)
  344. Lecanora argentata (Ach.) Malme - Harris (2004: 61)
  345. Lecanora cadubriae (A. Massal.) Hedl. - Thomson (1997: 270), Harris (2004: 61)
  346. Lecanora caesiorubella Ach. subsp. caesiorubella - Harris (2004: 61)
  347. Lecanora chlarotera Nyl. - Brodo (1968: 214), Thomson (1997: 273), Thomson (1997:301 as Lecanora rugosella), Harris (2004: 61), Harris (2004: 62 as Lecanora rugosella)
  348. Lecanora cinereofusca H. Magn. var. cinereofusca - Brodo (1968: 217 as Lecanora degelii), Harris (2004: 61)
  349. Lecanora cinereofusca H. Magn. var. appalachensis Brodo - Harris (2004: 61)
  350. Lecanora circumborealis Brodo & Vitik. - Thomson (1997: 274), Harris (2004: 61)
  351. Lecanora cupressina Tuck. - Brodo (1968: 217), Harris (2004: 61)
  352. Lecanora dispersa (Pers.) Somm. - Brodo (1968: 218), Thomson (1997: 278), Harris (2004: 61)
  353. Lecanora fuscescens (Sommerf.) Nyl. - Lowe (1939 as Lecidea fuscescens), Harris (2004: 61)
  354. Lecanora glabrata (Ach.) Malme - Harris (2004: 61)
  355. Lecanora hagenii (Ach.) Ach. - Brodo (1968: 218), Thomson (1997:286), Harris (2004: 61)
  356. Lecanora hybocarpa (Tuck.) Brodo - Harris (2004: 61)
  357. Lecanora hypopta (Ach.) Vain. - Thomson (1997: 354 as Lecidea hypopta), Harris (2004: 61)
  358. Lecanora impudens Degel. - Thomson (1997: 287), Harris (2004: 61), Hauck et al. (2005: 5)
  359. Lecanora imshaugii Brodo - Harris (2004: 61)
  360. Lecanora intricata (Ach.) Ach. - Harris (2004: 61)
  361. Lecanora invadens H. Magn. - Harris (2004: 61)
  362. Lecanora louisianae B. de Lesd. - Brodo (1984: ), Harris (2004: 61)
  363. Lecanora minutella Nyl. - Harris (2004: 61)
  364. Lecanora muralis (Schreb.) Rabenh. - Brodo (1968: 219), Thomson (1997: 295), Harris (2004: 61)
  365. Lecanora perplexa Brodo - Thomson (1997: 298), Harris (2004: 61)
  366. Lecanora placidensis (H. Magn.) Knoph et al. - Magnusson (xx: xx Type), Harris (2004: 61)
  367. Lecanora polytropa (Ehrh. in Hoffm.) Rabenh. - Thomson (1997: 299), Harris (2004: 62)
  368. Lecanora pseudistera Nyl. - Harris (2004: 62)
  369. Lecanora pulicaris (Pers.) Ach. - Thomson (1997: 301), Harris (2004: 62), Hauck et al. (2005: 5)
  370. Lecanora saligna (Schrad.) Zahlbr. - Thomson (1997: 305)
  371. Lecanora sambuci (Pers.) Nyl. - Harris (2004: 62)
  372. Lecanora semipallida H. Magn. - Sliwa (xx: xx)
  373. Lecanora strobilina (Spreng.) Kieffer - Brodo (1968: 217 erroneously as Lecanora conizaea), Harris (2004: 62)
  374. Lecanora subimmergens Vain. - Harris (2004: 62)
  375. Lecanora subintricata (Nyl.) Th. Fr. - Brodo (1968: 219)
  376. Lecanora subpallens Zahlbr. - Brodo (1968: 214 as Lecanora caesiorubella subsp. lathamii), Harris (2004: 62)
  377. Lecanora subrugosa Nyl. - Harris (2004: 62)
  378. Lecanora symmicta (Ach.) Ach. - Brodo (1968: 220), Harris (2004: 62)
  379. Lecanora thysanophora R. C. Harris - Harris (2004: 62)
  380. Lecanora umbrosa Degelius - Harris (2004: 62)
  381. Lecanora valesiaca (Müll. Arg.) Stizenb. - Harris (2004: 62)
  382. Lecanora varia (Hoffm.) Ach. - Thomson (1997: 311)
  383. Lecanora wisconsinensis H. Magn. - Harris (2004: 62)
  384. Lecanora xylophila Hue - Brodo (1968: 218 erroneously as Lecanora laevis), Thomson (1997: 284 as Lecanora grantii), Harris (2004: 62)

  385. Lecidea albofuscescens Nyl. - Harris (2004: 62)
  386. Lecidea amniculensis Lowe - Lowe (1939: Type), Harris (2004: 62)
  387. Lecidea atomaria Th. Fr. - Harris (2004: 62)
  388. Lecidea auriculata Th. Fr. subsp. auriculata - Thomson (1997: 329), Harris (2004: 62)
  389. Lecidea brunneofusca H. Magn. - Magnusson (xx: xx Type), Harris (2004: 62)
  390. Lecidea carnulenta (Tuck.) Fink - Harris (2004: 62)
  391. Lecidea cellularis Lowe - Lowe (xx: xx Type), Harris (2004: 62)
  392. Lecidea cyrtidia Tuck. - Brodo (1968: 167), Harris (2004: 62)
  393. Lecidea erythrophaea Flörke ex Sommerf. - Harris (2004: 62)
  394. Lecidea lapicida (Ach.) Ach. - Thomson (1997: 357), Harris (2004: 62)
  395. Lecidea leprarioides Tønsberg - Hauck et al. (2005: 5)
  396. Lecidea lithophila (Ach.) Ach. - Lowe (1939: ), Thomson (1997: 362), Harris (2004: 62)
  397. Lecidea lyngei Degel. - Harris (2004: 62)
  398. Lecidea nylanderi (Anzi) Th. Fr. - Brodo (1968: 169), Thomson (1997: 366), Harris (2004: 62), Hauck et al. (2005: 5)
  399. Lecidea plana (J. Lahm. in Körb.) Nyl. - Thomson (1997: 372), Harris (2004: 62)
  400. Lecidea plebeja Nyl. - Brodo (1968: 169 as Lecidea myriocarpoides), Thomson (1997: 374), Harris (2004: 62), Harris (2004: 62 as Lecidea myriocarpoides)
  401. Lecidea pulla Lowe - Lowe (1939: 245 Type), Harris (2004: 62)
  402. Lecidea pycnocarpa (Körb.) Ohlert - Harris (2004: 62)
  403. Lecidea tessellata Flörke - Harris (2004: 62)
  404. Lecidea turgidula Fr. - Thomson (1997: 388), Harris (2004: 62)
  405. Lecidea varians Ach. - Brodo (1968: 171), Harris (2004: 67 as Pyrrhospora varians)
  406. Lecidea virginiensis Calkins & Nyl. - Harris (2004: 62)

  407. Lecidella achristotera (Nyl.) Hertel & Leuckert - Harris (2004: 62)
  408. Lecidella carpathica Körb. - Thomson (1997: 395)
  409. Lecidella elaeochroma (Ach.) M. Choisy - Harris (2004: 62)
  410. Lecidella stigmatea (Ach.) Hertel & Leuckert - Thomson (1997: 402), Harris (2004: 62)

  411. Lecidoma demissum (Rutstr.) Gotth. Schneider & Hertel - Thomson (1997: 405), Harris (2004: 62)

  412. Leimonis erratica (Körb.) R. C. Harris & Lendemer - Brodo (1968: 165 sub Lecidea erratica var. erratica), Harris (2004: 63 as Micarea erratica)

  413. Lempholemma cladodes (Tuck.) Zahlbr. - Harris (2004: 62)
  414. Lempholemma polyanthes (Bernh.) A. Massal. - Thomson (1997: 407 as Lempholemma myriococcum), Harris (2004: 62)

  415. Lepra amara (Ach.) Hafellner - Brodo (1968: 206 as Pertusaria amara), Harris (2004: 65 as Pertusaria amara)
  416. Lepra dactylina (Ach.) Hafellner - Thomson (1997: 453 as Pertusaria dactylina), Harris (2004: 65 as Pertusaria dactylina)

  417. Lepraria elobata Tønsberg - Harris (2004: 63)
  418. Lepraria finkii (B. de Lesd. in Hue) R. C. Harris - Harris (1985: xx as Lepraria spec.), Harris (1987: 5), Harris (2004: 63 erroneously as Lepraria lobificans)
  419. Lepraria jackii Tønsberg - Hauck et al. (2005: 5)
  420. Lepraria membranacea (Dicks.) Vain. - Harris (2004: 63)
  421. Lepraria neglecta (Nyl.) Erichsen - Brodo (1968: 263 as Leparia zonata Type), Harris (2004: 62 as Lepraria cacuminum), Harris (2004: 62 as Lepraria caesioalba), Harris (2004: 63), Harris (2004: 63 with psoromic acid)
  422. Lepraria neglecta (Nyl.) Erichsen -
  423. Lepraria rigidula (B. de Lesd.) Tønsberg - Harris (2004: 63)

  424. Leproplaca cirrochroa (Ach.) Arup, Frödén & Søchting - Wetmore & Kärnefelt (1998: as Caloplaca cirrochroa), Harris (2004: 57 as Caloplaca cirrochroa)

  425. Leptogium azureum (Sw.) Mont. - Harris (2004: 63)
  426. Leptogium chloromelum (Ach.) Nyl. - Harris (2004: 63)
  427. Leptogium corticola (Taylor) Tuck. - Brodo (1968: 160), Harris (2004: 63)
  428. Leptogium cyanescens (Rabenh.) Körb. - Brodo (1968: 160), Harris (2004: 63), Lendemer (2008: 99)
  429. Leptogium hirsutum Sierk - Harris (2004: 63)
  430. Leptogium laceroides B. de Lesd. - Sierk (1964: ), Harris (2004: 63)
  431. Leptogium milligranum Sierk - Harris (2004: 63)
  432. Leptogium pulchellum (Ach.) Nyl. - Harris (2004: 60 as Collema pulchellum)
  433. Leptogium saturninum (Dicks.) Nyl. - Thomson (1984: 262), Harris (2004: 63)

  434. Leptorhaphis epidermidis (Ach.) Th. Fr. - Brodo (1968: 147)

  435. Lichenomphalia hudsoniana (H. S. Jenn.) Redhead, Lutzoni, Moncalvo & Vilgalys - Thomson (1984: 196 as Coriscium viride), Harris (2004: 63)

  436. Lichinella nigritella (Lettau) P. P. Moreno & Egea - Harris (2004: 63)

  437. Lithothelium hyalosporum (Nyl.) Aptroot - Harris (2004: 63)
  438. Lithothelium septemseptatum (R. C. Harris) Aptroot - Harris (2004: 63)

  439. Lobaria pulmonaria (L.) Hoffm. - Brodo (1968: 161), Harris (2004: 63)
  440. Lobaria quercizans Michx. - Brodo (1968: 162), Harris (2004: 63)

  441. Lopadium disciforme (Flot.) Kullh. - Harris (2004: 63)

  442. Loxospora cismonica (Beltr.) Hafellner - Harris (2004: 63), Hauck et al. (2005: 5)
  443. Loxospora elatina (Ach.) A. Massal. - Harris (2004: 63)
  444. Loxospora ochrophaea (Tuck.) R. C. Harris - Brodo (1968: 223 as Haematomma ochrophaeum), Harris (2004: 63), Hauck et al. (2005: 5)

  445. Maronea polyphaea H. Magn. - Harris (2004: 63)

  446. Megalaria laureri (Hepp ex Th. Fr.) Hafellner - Harris (2004: 63)

  447. Megalospora porphyritis (Tuck.) R. C. Harris - Harris (2004: 63)

  448. Megaspora verrucosa (Ach.) Hafellner & V. Wirth - Harris (2004: 63)

  449. Melanelia culbersonii (Hale) A. Thell - Harris (2004: 63)
  450. Melanelia hepatizon (Ach.) A. Thell - Thomson (1984: 82 as Cetraria hepatizon), Harris (2004: 63)
  451. Melanelia stygia (L.) Essl. - Harris (2004: 63)

  452. Melanelixia fuliginosa (Fr. ex Duby) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Harris (2004: 63 as Melanelia fuliginosa)
  453. Melanelixia glabratula (Lamy) Sandler & Arup - Thomson (1984: 303 as Parmelia glabratula)
  454. Melanelixia subaurifera (Nyl.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Brodo (1968: 235 sub Parmelia subaurifera), Thomson (1984: 316 sub Parmelia subaurifera), Harris (2004: 63 as Melanelia subaurifera)

  455. Melanohalea exasperata (De Not.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Harris (2004: 63 as Melanelia exasperata)
  456. Melanohalea halei (Ahti) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Harris (2004: 63 as Melanelia halei)
  457. Melanohalea infumata (Nyl.) O. Blanco et al. - Harris (2004: 63 as Melanelia infumata)
  458. Melanohalea olivacea (L.) O. Blanco et al. - Thomson (1984: 306 as Parmelia olivacea), Harris (2004: 63 as Melanelia olivacea)
  459. Melanohalea septentrionalis (Lynge) O. Blanco et al. - Thomson (1984: 311 as Parmelia septentrionalis), Harris (2004: 63 as Melanelia septentrionalis)

  460. Menegazzia terebrata (Hoffm.) A. Massal. - Harris (2004: 63)

  461. Micarea chlorosticta (Tuck.) R. C. Harris - Brodo (1968: 173 as Bacidia chlorosticta), Harris (2004: 63)
  462. Micarea endocyanea (Tuck. ex Willey) R. C. Harris - Harris (2004: 63)
  463. Micarea leprosula (Th. Fr.) Coppins & A. Fletcher - Harris (2004: 63)
  464. Micarea lignaria (Ach.) Hedl. - Thomson (1997: 417), Harris (2004: 63)
  465. Micarea lithinella (Nyl.) Hedl. - Harris (2004: 64)
  466. Micarea melaena (Nyl.) Hedl. - Brodo (1968: 152), Thomson (1997: 419), Harris (2004: 64), Hauck et al. (2005: 5)
  467. Micarea misella (Nyl.) Hedlund - Harris (2004: 64)
  468. Micarea neostipitata Coppins & P. May - Harris (2004: 64)
  469. Micarea peliocarpa (Anzi) Coppins & R. Sant. - Brodo (1968: 175 as Bacidia trisepta), Harris (2004: 64)
  470. Micarea prasina Fr. - Harris (2004: 64), Hauck et al. (2005: 5)
  471. Micarea rhabdogena (Norm.) Hedl. - Harris (2004: 64)
  472. Micarea sylvicola (Flot.) Vezda & V. Wirth - Harris (2004: 64)
  473. Micarea ternaria (Nyl.) Vezda - Harris (2004: 64)

  474. Miriquidica plumbeoatra (Vain.) A. J. Schwab & Rambold - Lowe (1939: Type as Lecidea furva), Lowe (xx: xx as Lecidea humilis Type), Harris (2004: 62 as Lecidea furva), Harris (2004: 62 as Lecidea humilis)
  475. Miriquidica pycnocarpa (Körb.) Andreev - Harris (2004: 62 as Lecidea marciensis)

  476. Montanelia disjuncta (Erichsen) Divakar, A. Crespo, Wedin & Essl. - Harris (2004: 63 as Melanelia disjuncta)
  477. Montanelia panniformis (Nyl.) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 309 as Parmelia panniformis), Harris (2004: 63 as Melanelia panniformis)
  478. Montanelia sorediata (Ach.) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 312 as Parmelia sorediosa), Harris (2004: 63 as Melanelia sorediata)

  479. Mycobilimbia carneoalbida (Müll. Arg.) S. Ekman & Printzen - Harris (2004: 64)
  480. Mycobilimbia epixanthoides (Nyl.) Vitikainen et al. - Harris (2004: 64)

  481. Mycoblastus affinis (Schaer.) T. Schauer - Harris (2004: 64)
  482. Mycoblastus alpinus (Fr.) Kernst. - Hauck et al. (2005: 5)
  483. Mycoblastus sanguinarius (L.) Norman - Thomson (1997: 426), Harris (2004: 64), Hauck et al. (2005: 5)

  484. Mycoporum compositum (A. Massal.) R. C. Harris - Harris (2004: 64)
  485. Mycoporum pycnocarpoides Müll. Arg. - Harris (2004: 64)

  486. Myelochroa aurulenta (Tuck.) Elix & Hale - Brodo (1968: 227 sub Parmelia aurulenta), Harris (2004: 64)
  487. Myelochroa galbina (Ach.) Elix & Hale - Brodo (1968: 229 as Parmelia galbina), Harris (2004: 64)

  488. Myriospora smaragdula (Wahlenb. ex Ach.) K. Knudsen & Abbott - Harris (2004: 56 as Acarospora smaragdula)

  489. Nadvornikia sorediata R. C. Harris - Harris (2004: 64)

  490. Nephroma arcticum (L.) Torss. - Thomson (1984: 277), Harris (2004: 64)
  491. Nephroma bellum (Spreng.) Tuck. - Thomson (1984: 278), Harris (2004: 64)
  492. Nephroma helveticum Ach. subsp. helveticum - Thomson (1984: 279 as Nephroma helveticum var. helveticum), Harris (2004: 64 as Nephroma helveticum var. helveticum)
  493. Nephroma laevigatum Ach. - Brodo (1968: 162)
  494. Nephroma parile (Ach.) Ach. - Thomson (1984: 282), Harris (2004: 64)

  495. Ochrolechia africana Vain. - Brodo (1968 as Ochrolechia sp.), Harris (2004: 64)
  496. Ochrolechia androgyna (Hoffm.) Arnold - Harris (2004: 64)
  497. Ochrolechia arborea (Kreyer) Almborn - Harris (2004: 64)
  498. Ochrolechia frigida (Sw.) Lynge - Thomson (1997: 431)
  499. Ochrolechia mexicana Vain. - Harris (2004: 64)
  500. Ochrolechia tartarea (L.) A. Massal. - Harris (2004: 64)
  501. Ochrolechia trochophora (Vain.) Oshio var. trochophora - Brodo (1968: 221 as Ochrolechia rosella), Harris (2004: 64 as Ochrolechia pseudopallescens), Harris (2004: 64)
  502. Ochrolechia yasudae Vain. - Harris (2004: 64)

  503. Opegrapha rufescens Pers. - Brodo (1968: 153), Harris (2004: 64)
  504. Opegrapha vulgata Ach. - Brodo (1968: 153 as Opegrapha cinerea), Harris (2004: 64)

  505. Ophioparma lapponica (Räsänen) Hafellner & R. W. Rogers - Thomson (1997: 440)
  506. Ophioparma ventosa (L.) Norman - Harris (2004: 64)

  507. Orphniospora moriopsis (A. Massal.) D. Hawksw. - Thomson (1997: 441), Harris (2004: 64)

  508. Pannaria lurida (Mont.) Nyl. subsp. lurida - Brodo (1968: 161)
  509. Pannaria lurida (Mont.) Nyl. subsp. russellii (Tuck.) P. M. Jørg. - Harris (2004: 64)
  510. Pannaria subfusca P. M. Jørg. - Harris (2004: 64)

  511. Parmelia neodiscordans Hale - Harris (2004: 64 as Parmelia neodiscordans)
  512. Parmelia omphalodes (L.) Ach. - Thomson (1984: 308), Harris (2004: 64)
  513. Parmelia saxatilis (L.) Ach. - Brodo (1968: 234), Thomson (1984: 310), Harris (1987: 5), Harris (2004: 64), Hauck et al. (2005: 5)
  514. Parmelia squarrosa Hale - Thomson (1984: 313), Harris (2004: 64)
  515. Parmelia sulcata Tayl. - Brodo (1968: 236), Thomson (1984: 318), Harris (2004: 64)

  516. Parmeliopsis capitata R. C. Harris ex J. W. Hinds & P. L. Hinds - Harris (2004: 64 as Parmeliopsis capitata), Hauck et al. (2005: 5 as Parmeliopsis capitata)
  517. Parmeliopsis hyperopta (Ach.) Arnold - Thomson (1984: 326), Harris (2004: 64)
  518. Parmeliopsis subambigua Gyelnik - Harris (2004: 64)

  519. Parmotrema arnoldii (Du Rietz) Hale - Harris (2004: 64)
  520. Parmotrema cetratum (Ach.) Hale - Harris (2004: 67 as Rimelia cetrata)
  521. Parmotrema crinitum (Ach.) M. Choisy - Harris (1987: 4), Harris (2004: 64)
  522. Parmotrema dilatatum (Vain.) Hale - Brodo (1968: 229 as Parmelia dilatata)
  523. Parmotrema hypoleucinum (J. Steiner) Hale - Harris (2004: 64)
  524. Parmotrema hypotropum (Nyl.) Hale - Brodo (1968: 229 as Parmelia hypotropa), Harris (1987: 5 as Parmelia hypotropa), Harris (2004: 65)
  525. Parmotrema margaritatum (Hue) Hale - Harris (2004: 65)
  526. Parmotrema perforatum (Jacq.) A. Massal. - Brodo (1968: 232 as Parmelia perforata), Harris (2004: 65)
  527. Parmotrema perlatum (Huds.) M. Choisy - Brodo (1968: 233 as Parmelia perlata), Harris (2004: 64 as Parmotrema chinense)
  528. Parmotrema reticulatum (Taylor) M. Choisy - Brodo (1968: 233 as Parmelia reticulata), Harris (2004: 67 as Rimelia reticulata)
  529. Parmotrema stuppeum (Taylor) Hale - Harris (2004: 65)
  530. Parmotrema submarginale (Michx.) DePriest & B. W. Hale - Brodo (1968: 231 as ), Harris (2004: 65)

  531. Peltigera aphthosa (L.) Willd. - Thomson (1984: 329), Harris (2004: 65)
  532. Peltigera canina (L.) Willd. - Harris (2004: 65)
  533. Peltigera degenii Gyelnik - Harris (2004: 65)
  534. Peltigera didactyla (With.) J. R. Laundon - Brodo (1968: 164 as Peltigera canina var. spuria), Thomson (1984: 332 as Peltigera canina f. sorediata), Harris (1987: 4), Harris (2004: 65)
  535. Peltigera elisabethae Gyelnik - Harris (2004: 65)
  536. Peltigera evansiana Gyelnik - Harris (2004: 65)
  537. Peltigera extenuata ((Nyl. ex Vain.) Lojka - Harris (2004: 65)
  538. Peltigera horizontalis (Huds.) Baumg. - Thomson (1984: 337), Harris (2004: 65)
  539. Peltigera hydrothyria Miadl. & Lutzoni - Harris (2004: 61 as Hydrothyria venosa)
  540. Peltigera hymenina (Ach.) Delise - Harris (2004: 65)
  541. Peltigera lepidophora (Vain.) Bitter - Harris (2004: 65)
  542. Peltigera leucophlebia (Nyl.) Gyelnik - Brodo (1968: 163 as Peltigera aphthosa var. variolosa), Thomson (1984: 330 as Peltigera aphthosa var. leucophlebia), Harris (2004: 65)
  543. Peltigera membranacea (Ach.) Nyl. - Thomson (1984: 340), Harris (2004: 65)
  544. Peltigera neckeri Müll. Arg. - Harris (2004: 65)
  545. Peltigera neopolydactyla (Gyelnik) Gyelnik - Harris (2004: 65)
  546. Peltigera polydactylon (Neck.) Hoffm. - Brodo (1968: 164), Thomson (1984: 343), Harris (2004: 65)
  547. Peltigera praetextata (Flörke in Somm.) Vain. - Brodo (1968: 164), Harris (2004: 65)
  548. Peltigera rufescens (Weiss) Humboldt - Brodo (1968: 163 as Peltigera canina var. rufescens), Thomson (1984: 333 as Peltigera canina var. rufescens), Harris (2004: 65)
  549. Peltigera scabrosa Th. Fr. - Thomson (1984: 344)

  550. Pertusaria consocians Dibben - Harris (2004: 65)
  551. Pertusaria globularis (Ach.) Tuck. - Harris (2004: 65)
  552. Pertusaria hypothamnolica Dibben - Dibben (1980: ), Harris (2004: 65)
  553. Pertusaria leioplaca DC. - Brodo (1968: 206 as Pertusaria alpina), Thomson (1997: 447 as Pertusaria alpina), Harris (2004: 65 as Pertusaria alpina), Harris (2004: 65 as Pertusaria leucostoma)
  554. Pertusaria macounii (I. M. Lamb) Dibben - Brodo (1968: 212 as Melanaria macounii), Harris (2004: 65)
  555. Pertusaria paratuberculifera Dibben - Dibben (1980: 101 Type), Harris (1987: 5), Harris (2004: 65)
  556. Pertusaria plittiana Erichsen - Harris (2004: 65)
  557. Pertusaria propinqua Müll. Arg. - Brodo (1968: 206), Harris (2004: 65)
  558. Pertusaria pustulata (Ach.) Duby - Harris (2004: 65)
  559. Pertusaria rubefacta Erichsen - Harris (2004: 65)
  560. Pertusaria subpertusa Brodo - Brodo (1968: 206 Type oder an anderer Stelle), Harris (2004: 65)
  561. Pertusaria xanthodes Müll. Arg. - Brodo (1968: 211), Harris (2004: 65)

  562. Phaeographis dendritica (Ach.) Müll. Arg. - Brodo (1968: 158)
  563. Phaeographis inusta (Ach.) Müll. Arg. - Harris (2004: 65)

  564. Phaeophyscia adiastola (Essl.) Essl. - Harris (2004: 65)
  565. Phaeophyscia ciliata (Hoffm.) Moberg - Harris (2004: 65)
  566. Phaeophyscia endococcina (Körb.) Moberg - Thomson (1984: 348)
  567. Phaeophyscia endococcinodes (Poelt) Essl. - Harris (2004: 65)
  568. Phaeophyscia hirsuta (Mereschk.) Essl. - Harris (2004: 65 as Phaeophyscia cernohorskyi)
  569. Phaeophyscia hirtella Essl. - Harris (2004: 65)
  570. Phaeophyscia hispidula (Ach.) Essl. - Harris (2004: 65)
  571. Phaeophyscia insignis (Mereschkowsky) Moberg - Harris (2004: 65)
  572. Phaeophyscia orbicularis (Neck.) Moberg - Brodo (1968: 260 sub Physcia orbicularis), Harris (1987: 5)
  573. Phaeophyscia pusilloides (Zahlbr.) Essl. - Harris (2004: 65)
  574. Phaeophyscia rubropulchra (Degel.) Essl. - Harris (2004: 65)
  575. Phaeophyscia sciastra (Ach.) Moberg - Harris (2004: 65)
  576. Phaeophyscia squarrosa Kashiwadani - Harris (2004: 65)

  577. Phlyctis argena (Sprengel) Flot. - Harris (2004: 65)

  578. Physcia adscendens (Th. Fr.) H. Olivier - Brodo (1968: 258), Harris (2004: 65)
  579. Physcia aipolia (Ehrh. in Humb.) Hampe in Fürnr. var. aipolia - Brodo (1968: 259), Thomson (1984: 353), Harris (2004: 66)
  580. Physcia americana G. Merr. - Brodo (1968: 262 as Physcia tribacoides), Harris (2004: 66)
  581. Physcia caesia (Hoffm.) Fürnrohr - Thomson (1984: 354), Thomson (1984: 352), Harris (2004: 66)
  582. Physcia dubia (Hoffm.) Lettau - Harris (2004: 66)
  583. Physcia millegrana Degel. - Brodo (1968: 259), Harris (2004: 66)
  584. Physcia phaea (Tuck.) Thoms.- Thomson (1984: 356), Harris (2004: 66)
  585. Physcia stellaris (L.) Nyl. - Brodo (1968: 261), Harris (2004: 66)
  586. Physcia subtilis Degel. - Brodo (1968: 261), Harris (2004: 66), Lendemer (2008: 99)

  587. Physciella chloantha (Ach.) Essl. - Harris (2004: 66)
  588. Physciella melanchra (Hue) Essl. - Harris (2004: 66)

  589. Physconia detersa (Nyl.) Poelt - Thomson (1984: 359), Harris (2004: 66)
  590. Physconia leucoleiptes (Tuck.) Essl. - Harris (2004: 66)

  591. Pilophorus cereolus (Ach.) Th. Fr. in Hellbom - Thomson (1984: 362), Harris (2004: 66)
  592. Pilophorus fibula (Tuck.) Th. Fr. - Harris (2004: 66)

  593. Placidiopsis minor R. C. Harris - Harris (2004: 66)

  594. Placidium arboreum (Schwein. ex E. Michener) Lendemer - Harris (2004: 66 as Placidium tuckermanii)
  595. Placidium squamulosum (Ach.) Breuss - Harris (2004: 66)

  596. Placynthiella icmalea (Ach.) Coppins & P. James - Harris (2004: 66)
  597. Placynthiella oligotropha (J. R. Laundon) Coppins & P. James - Harris (2004: 66)
  598. Placynthiella uliginosa (Schrad.) Coppins & James - Brodo (1968: 170 sub Lecidea uliginosa), Thomson (1997: 475), Harris (2004: 66)

  599. Placynthium flabellosum (Tuck.) Zahlbr. - Harris (2004: 66)
  600. Placynthium nigrum (Huds.) S. Gray - Brodo (1968: 161), Thomson (1984: 366), Harris (2004: 66)
  601. Placynthium petersii (Nyl.) Burnham - Harris (2004: 66)
  602. Placynthium stenophyllum (Tuck.) Fink - Harris (2004: 66)

  603. Platismatia glauca (L.) W. L. Culb. & C. F. Culb. - Thomson (1984: 368), Hauck et al. (2005: 5), Harris (2004: 66)
  604. Platismatia tuckermanii (Oakes) W. L. Culb. & C. F. Culb. - Brodo (1968: 239 sub Cetraria tuckermanii), Harris (2004: 66)

  605. Polycauliona polycarpa (Hoffm.) Frödén, Arup, & Søchting - Thomson (1984: 487 as Xanthoria polycarpa)

  606. Polysporina simplex (Davis) Vezda - Brodo (1968: 205 as Sarcogyne simplex), Thomson (1997: 486), Harris (2004: 66)
  607. Polysporina subfuscescens (Nyl.) K. Knudsen & Kocourk. - Harris (1987: 4 as Acarospora subfuscescens), Harris (2004: 66 erroneously as Polysporina lapponica)

  608. Porina nucula Ach. - Brodo (1968: 156)

  609. Porpidia albocaerulescens (Wulfen) Hertel & Knoph - Brodo (1968: 165 sub Lecidea albocaerulescens), Harris (2004: 66)
  610. Porpidia cinereoatra (Ach.) Hertel & Knoph - Harris (2004: 66), Harris (2004: 66 as Porpidia herteliana)
  611. Porpidia contraponenda (Arnold) Knoph & Hertel - Lowe (1939: 256 as Lecidea diversa Type in MICH), Gowan (1989: 42 as Porpidia diversa), Harris (2004: 66 as Porpidia diversa), Fryday (2005: xx)
  612. Porpidia crustulata (Ach.) Hertel & Knoph - Harris (2004: 66)
  613. Porpidia macrocarpa (DC.) Hertel & A. J. Schwab - Brodo (1968: 169 sub Lecidea macrocarpa), Harris (2004: 66)
  614. Porpidia subsimplex (H. Magn.) Fryday - Harris (2004: 66 as Porpidia tahawasiana)
  615. Porpidia tuberculosa (Sm. in Sm. & Sow.) Hertel & Knoph - Thomson (1997: 500), Harris (2004: 66)

  616. Protoblastenia rupestris (Scop.) J. Steiner - Harris (2004: 66)

  617. Protomicarea limosa (Ach.) Hafellner - Thomson (1997: 361 as Lecidea limosa), Harris (2004: 66)

  618. Protoparmelia badia (Hoffm.) Hafellner - Thomson (1997: 269 as Lecanora badia), Harris (2004: 66)

  619. Pseudevernia cladonia (Tuck.) Hale & W. L. Culb. - Harris (2004: 66), Hauck et al. (2005: 5)
  620. Pseudevernia consocians (Vain.) Hale & W. L. Culb. - Harris (2004: 66), Hauck et al. (2005: 5)

  621. Pseudosagedia aenea (Wallr.) Hafellner & Kalb - Harris (2004: 68 as Trichothelium aeneum)
  622. Pseudosagedia cestrensis (Tuck. ex E. Michener) R. C. Harris - Brodo (1968: 156 as Porina cestrensis)

  623. Psilolechia clavulifera (Nyl.) Coppins - Harris (2004: 66)
  624. Psilolechia lucida (Ach.) M. Choisy - Harris (2004: 66)

  625. Psora decipiens (Hedwig) Hoffm. - Thomson (1997: 507), Harris (2004: 66)
  626. Psora pseudorussellii Timdal - Harris (2004: 66)

  627. Psorotichia schaereri (A. Massal.) Arnold - Harris (2004: 66)

  628. Psorula rufonigra (Tuck.) Gotth. Schneider - Harris (2004: 66)

  629. Punctelia appalachensis (W. L. Culb.) Krog - Brodo (1968: 227 as Parmelia appalachensis), Harris (2004: 66)
  630. Punctelia bolliana (Müll. Arg.) Krog - Harris (2004: 66)
  631. Punctelia rudecta (Ach.) Krog - Brodo (1968: 234 as Parmelia rudecta), Harris (2004: 66)

  632. Pycnothelia papillaria Dufour - Brodo (1968: 177), Thomson (1984: 377), Harris (2004: 66)

  633. Pyrenopsis polycocca (Nyl.) Tuck. - Brodo et al. (2001: map), Harris (2004: 66)

  634. Pyrenula cruenta (Mont.) Trevisan - Brodo (1968: 155 as Melanotheca cruenta), Harris (2004: 66)
  635. Pyrenula dermatodes (Borrer) Schaer. - Harris (xx: xx as Pyrenula lucifera Type), Harris (2004: 66 as Pyrenula lucifera)
  636. Pyrenula laevigata (Pers.) Arnold - Harris (2004: 66)
  637. Pyrenula macounii R. C. Harris - Harris (2004: 67)
  638. Pyrenula pseudobufonia (Rehm) R. C. Harris - Harris (2004: 67)
  639. Pyrenula subelliptica (Tuck.) R. C. Harris - Harris (2004: 67)

  640. Pyrrhospora quernea (Ach.) Körb. - Harris (2004: 67)

  641. Pyxine sorediata (Ach.) Mont. in Sagra - Brodo (1968: 258), Harris (2004: 67)
  642. Pyxine subcinerea Stirt. - Harris (2004: 67)

  643. Ramalina americana Hale - Brodo (1968: 243 erroneously as Ramalina fastigiata), Harris (2004: 67)
  644. Ramalina complanata (Sw. in Ach.) Ach. - Brodo (1968: 242)
  645. Ramalina denticulata Nyl. - Harris (2004: 67)
  646. Ramalina intermedia (Delise ex Nyl.) Nyl. - Thomson (1984: 379), Harris (2004: 67)
  647. Ramalina petrina Bowler & Rundel - Harris (2004: 67)
  648. Ramalina pollinaria (Westr.) Ach. - Harris (2004: 67)
  649. Ramalina stenospora Müll. Arg. - Brodo (1968: 243), Harris (2004: 67)
  650. Ramalina willeyi R. H. Howe - Brodo (1968: 244), Harris (2004: 67)

  651. Ramboldia elabens (Fr.) Kantvilas & Elix - Harris (2004: 67 as Pyrrhospora elabens)
  652. Ramboldia russula (Ach.) Hafellner - Harris (2004: 67 as Pyrrhospora russula)

  653. Rhizocarpon badioatrum (Flörke ex Sprengel) Th. Fr. - Harris (2004: 67)
  654. Rhizocarpon cinereovirens (Müll. Arg.) Vain. - Brodo (1968: 176), Thomson (1997: 528), Harris (2004: 67)
  655. Rhizocarpon disporum (Hepp) Müll. Arg. - Harris (2004: 67)
  656. Rhizocarpon eupetraeoides (Nyl.) Blomberg & Forss. - Harris (2004: 67)
  657. Rhizocarpon eupetraeum (Nyl.) Arnold - Brodo (1968: 177 as Rhizocarpon intermedium), Thomson (1997: 533), Harris (2004: 67)
  658. Rhizocarpon geminatum Körb. - Thomson (1997: 537)
  659. Rhizocarpon geographicum (L.) DC. - Thomson (1997: 538), Harris (2004: 67)
  660. Rhizocarpon grande (Flörke in Flot.) Arnold - Brodo (1968: 176), Thomson (1997: 539), Harris (2004: 67)
  661. Rhizocarpon hochstetteri (Körb.) Vain. - Thomson (1997: 540)
  662. Rhizocarpon infernulum (Nyl.) Lynge - Harris (2004: 67 as Rhizocarpon infernulum f. sylvaticum)
  663. Rhizocarpon lavatum (Fr.) Hazsl. - Harris (2004: 67)
  664. Rhizocarpon lecanorinum Anders - Brodo (2001: ), Harris (2004: 67)
  665. Rhizocarpon obscuratum (Ach.) A. Massal. - Brodo (1968: 177), Thomson (1997: 545)
  666. Rhizocarpon oederi (Weber) Körb. - Harris (2004: 67)
  667. Rhizocarpon rubescens Th. Fr. - Harris (2004: 67)
  668. Rhizocarpon subgeminatum Eitner - Harris (2004: 67)
  669. Rhizocarpon submodestum (Vain.) Vain. - Harris (2004: 67)
  670. Rhizocarpon timdalii Ihlen & Fryday - Harris (2004: 67)

  671. Rhizoplaca chrysoleuca (Sm.) Zopf - Brodo (1968: 219 sub Lecanora rubina), Harris (2004: 67)
  672. Rhizoplaca subdiscrepans (Nyl.) R. Santesson - Harris (2004: 67)

  673. Rimularia badioatra (Kremp.) Hertel & Rambold - Harris (2004: 67)
  674. Rimularia caeca (Lowe) Rambold & Printzen - Lowe (xx: xx Type), Harris (2004: 67)
  675. Rimularia sphacelata (Th. Fr.) Hertel & Rambold - Harris (2004: 62 as Lecidea sphacelata)

  676. Rinodina adirondackii H. Magn. - Magnusson (1947: 48 Type in Uppsala, Sweden UPS), Harris (2004: 67)
  677. Rinodina ascociscana (Tuck.) Tuck. - Harris (2004: 67)
  678. Rinodina bischoffii (Hepp) A. Massal. - Harris (2004: 67)
  679. Rinodina cana (Arnold) Arnold - Harris (2004: 67)
  680. Rinodina confragosa (Ach.) Körb. - Brodo (1968: 256)
  681. Rinodina gennarii Bagl. - Brodo (1968: 258 as Rinodina salina), Harris (2004: 67)
  682. Rinodina maculans Müll. Arg. - Brodo (1968: 256 as Rinodina applanata), Harris (2004: 67)
  683. Rinodina oxydata (A. Massal.) A. Massal. - Harris (2004: 67)
  684. Rinodina pachysperma H. Magn. - Brodo (1968: 257)
  685. Rinodina populicola H. Magn. - Harris (2004: 67)
  686. Rinodina subminuta H. Magn. - Harris (2004: 67)
  687. Rinodina tephraspis (Tuck.) Herre - Harris (2004: 67)
  688. Rinodina willeyi Sheard & Giralt - Harris (2004: 67)

  689. Ropalospora chlorantha (Tuck.) S. Ekman - Brodo (1968: 172 as Bacidia chlorantha), Harris (2004: 67), Hauck et al. (2005: 5)
  690. Ropalospora lugubris (Sommerf.) Poelt - Thomson (1997: 571), Harris (2004: 67)
  691. Ropalospora viridis (Tønsberg) Tønsberg - Harris (2004: 67)

  692. Rufoplaca oxfordensis (Fink) Arup, Søchting & Frödén - Harris (2004: 57 as Caloplaca oxfordensis)

  693. Rusavskia elegans (Link) S. Y. Kondr. & Kärnefelt - Harris (2004: 69 as Xanthoria elegans)
  694. Rusavskia sorediata (vain.) S. Y. Kondr. & Kärnefelt - Harris (2004: 69 as Xanthoria sorediata)

  695. Santessoniella crossophylla (Tuck.) P. M. Jørg. - Harris (2004: 67)

  696. Sarcogyne clavus (Ram. in Lam. & DC.) Kremp. - Brodo (1968: 204), Thomson (1997: 577), Harris (2004: 67)
  697. Sarcogyne hypophaea (Nyl.) Arnold - Brodo (1968: 205 erroneously as Sarcogyne privigna), Harris (2004: 67 erroneously as Sarcogyne privigna)
  698. Sarcogyne regularis Körb. - Thomson (1997: 579), Harris (2004: 67)
  699. Sarcogyne similis H. Magn. - Harris (2004: 67)

  700. Sarcopyrenia cylindrospora (P. Crouan & H. Crouan) M. B. Aguirre - Harris (2004: 67)

  701. Schaereria cinereorufa (Schaer.) Th. Fr. - Lowe (1939: as Lecidea rugosa Type), Thomson (1997: 582), Harris (2004: 62 as Lecidea rugosa)
  702. Schaereria fuscocinerea (Nyl.) Clauzade & Roux - Harris (2004: 67)

  703. Sclerophora nivea (Hoffm.) Tibell - Harris (2004: 68)

  704. Scoliciosporum chlorococcum (Stenhammar) Vezda - Brodo (1968: 173 as Bacidia chlorococca), Harris (2004: 68)
  705. Scoliciosporum umbrinum (Ach.) Bausch - Brodo (1968: 176 sub Bacidia umbrina), Thomson (1997: 585), Harris (2004: 68)

  706. Scytinium dactylinum (Tuck.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 63 as Leptogium dactylinum)
  707. Scytinium fragrans (Sm.) Ach. - Harris (2004: 60 as Collema fragrans)
  708. Scytinium juniperinum (Tuck.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 63 as Leptogium juniperinum)
  709. Scytinium lichenoides (L.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 257 as Leptogium lichenoides), Harris (2004: 63 as Leptogium lichenoides)
  710. Scytinium subtile (Schrad.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 259 as Leptogium minutissimum), Harris (2004: 63 as Leptogium subtile)
  711. Scytinium tenuissimum (Dicks.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 264 as Leptogium tenuissimum), Harris (2004: 63 as Leptogium tenuissimum)
  712. Scytinium teretiusculum (Wallr.) Otálora, P. M. Jørg. & Wedin - Harris (2004: 63 as Leptogium teretiusculum)

  713. Segestria lectissima Fr. - Harris (2004: 68)

  714. Solorina saccata (L.) Ach. - Brodo (1968: 163), Thomson (1984: 390), Harris (2004: 68)

  715. Squamulea subsoluta (Nyl.) Arup, Søchting & Frödén - Harris (2004: 57 as Caloplaca subsoluta)

  716. Staurothele drummondii (Tuck.) Tuck. - Thomson (1997: 595), Harris (2004: 68)
  717. Staurothele fissa (Tayler) Zwackh - Thomson (1997: 596), Harris (2004: 68)

  718. Stereocaulon condensatum Hoffm. - Harris (2004: 68)
  719. Stereocaulon dactylophyllum Flörke - Thomson (1984: 410), Harris (2004: 68)
  720. Stereocaulon glaucescens Tuck. var. caespitosulum (Nyl.) I. M. Lamb - Harris (2004: 68)
  721. Stereocaulon paschale (L.) Hoffm. - Harris (2004: 68)
  722. Stereocaulon pileatum Ach. - Thomson (1984: 419), Harris (2004: 68)
  723. Stereocaulon saxatile H. Magn. - Brodo (1968: 178), Thomson (1984: 423), Harris (2004: 68)
  724. Stereocaulon subcoralloides (Nyl.) Nyl. - Harris (2004: 68)
  725. Stereocaulon tennesseense H. Magn. var. nigrofastigiatum I. M. Lamb - Harris (2004: 68)
  726. Stereocaulon tomentosum Fr. - Harris (2004: 68)

  727. Sticta beauvoisii Delise - Harris (2004: 68)
  728. Sticta fuliginosa (Hoffm.) Ach. - Harris (2004: 68)
  729. Sticta sylvatica (Huds.) Ach. - Harris (2004: 68)

  730. Stictis urceolatum (Ach.) Gilenstam - Harris (1987: 4 as Conotrema urceolatum), Harris (2004: 60 as Conotrema urceolatum)

  731. Strigula americana R. C. Harris - Harris (2004: 68)
  732. Strigula jamesii (Swinscow) R. C. Harris - Harris (2004: 68)
  733. Strigula stigmatella (Ach.) R. C. Harris - Harris (2004: 68)

  734. Teloschistes chrysophthalmus (L.) Beltr. - Brodo (1968: 252), Harris (2004: 68)
  735. Teloschistes flavicans (Sw.) Norm. - Brodo (1968: 253), Harris (2004: 68)

  736. Tephromela atra (Huds.) Hafellner - Brodo (1968: 213 sub Lecanora atra), Harris (2004: 68)

  737. Thamnolia subuliformis (Ehrh.) W. L. Culb. - Thomson (1984: 438), Harris (2004: 68)

  738. Thelenella humilis R. C. Harris - Harris (xx: xx Type), Harris (2004: 68)

  739. Thelidium decipiens (Nyl.) Kremp. - Harris (2004: 68)
  740. Thelidium zwackhii (Hepp) A. Massal. - Harris (2004: 68)

  741. Thelocarpon intermediellum Nyl. - Harris (2004: 68)

  742. Thrombium epigaeum (Pers.) Wallr. - Harris (2004: 68)

  743. Thyrea confusa Henssen - Harris (2004: 68)

  744. Toninia squalescens (Nyl.) Th. Fr. - Lowe (xx: xx as Lecidea subramosaType), Harris (2004: 62 as Lecidea subramosa)

  745. Trapelia coarctata (Turner ex Sm. & Sow.) M. Choisy - Brodo (1968: 165 sub Lecidea coarctata), Thomson (1997: 621), Harris (2004: 68)
  746. Trapelia corticola Coppins & P. James - Harris (2004: 68)
  747. Trapelia glebulosa (Sm.) J. R. Laundon - Harris (2004: 68 as Trapelia involuta)
  748. Trapelia obtegens (Th. Fr.) Hertel - Lowe (1939 as Lecidea), Harris (2004: 68)
  749. Trapelia placodioides Coppins & P. James - Harris (2004: 68)

  750. Trapeliopsis flexuosa (Fr.) Coppins & James - Brodo (1968: 165 sub Lecidea aeruginosa), Thomson (1997: 623), Harris (2004: 68)
  751. Trapeliopsis gelatinosa (Flörke) Coppins & P. James - Harris (2004: 68)
  752. Trapeliopsis granulosa (Hoffm.) Lumbsch - Brodo (1968: 168 as Lecidea granulosa), Thomson (1997: 624), Harris (2004: 68)
  753. Trapeliopsis viridescens (Schrad.) Coppins & James - Brodo (1968: 171 as Lecidea viridescens), Thomson (1997: 625), Harris (2004: 68)

  754. Tremolecia atrata (Ach.) Hertel - Harris (2004: 68)

  755. Pseudosagedia cestrensis (Tuck. ex E. Michener) R. C. Harris - Harris (2004: 68 as Trichothelium cestrense)
  756. Pseudosagedia chlorotica (Ach.) Hafellner & Kalb - Harris (2004: 68 as Trichothelium chloroticum)

  757. Trypethelium virens Tuck. ex E. Michener - Brodo (1968: 156), Harris (2004: 68)

  758. Tuckermanella fendleri (Nyl.) Essl. - Brodo (1968: 238 sub Cetraria fendleri), Harris (2004: 68 as Tuckermanella fendleri)

  759. Tuckermannopsis americana (Spreng.) Hale - Thomson (1984: 81 as Cetraria halei), Harris (2004: 68)
  760. Tuckermannopsis ciliaris (Ach.) Gyelnik - Brodo (1968: 238 as Cetraria ciliaris), Harris (2004: 68)
  761. Tuckermannopsis orbata (Nyl.) M. J. Lai - Harris (2004: 68)
  762. Tuckermannopsis sepincola (Ehrh.) Hale - Thomson (1984: 94 as Cetraria sepincola), Harris (2004: 68)

  763. Umbilicaria americana Poelt & T. H. Nash - Harris (2004: 68)
  764. Umbilicaria deusta (L.) Baumg. - Thomson (1984: 449), Harris (2004: 68)
  765. Umbilicaria hirsuta (Westr.) Hoffm. - Harris (2004: 68)
  766. Umbilicaria hyperborea (Ach.) Hoffm. var. hyperborea - Thomson (1984: 453), Harris (2004: 69)
  767. Umbilicaria lyngei Schol. - Thomson (1984: 28 as Agyrophora lyngei)
  768. Umbilicaria mammulata (Ach.) Tuck. - Brodo (1968: 203), Harris (2004: 69)
  769. Umbilicaria muehlenbergii (Ach.) Tuck. - Brodo (1968: 204), Thomson (1984: 26 as Actinogyra muehlenbergii), Harris (2004: 69)
  770. Umbilicaria polyphylla (L.) Baumg. - Thomson (1984: 457)
  771. Umbilicaria proboscidea (L.) Schrad. - Thomson (1984: 458), Harris (2004: 69)
  772. Umbilicaria torrefacta (Lightf.) Schrad. - Thomson (1984: 459), Harris (2004: 69)
  773. Umbilicaria vellea (L.) Ach. - Thomson (1984: 460)
  774. Umbilicaria virginis Schaer. - Thomson (1984: 290 as Omphalodiscus virginis), Brodo et al. (2001: ), Harris (2004: 69)

  775. Usnea amblyoclada (Müll. Arg.) Zahlbr. - Harris (2004: 69)
  776. Usnea cavernosa Tuck. - Thomson (1984: 463), Harris (2004: 69)
  777. Usnea ceratina Ach. - Harris (1987: 4), Harris (2004: 69)
  778. Usnea dasaea Stirt. - Harris (2004: 69)
  779. Usnea dasypoga (Ach.) Röhl. - Thomson (1984: 465)
  780. Usnea filipendula Stirt. - Harris (2004: 69)
  781. Usnea hirta (L.) Weber ex F. H. Wigg. - Thomson (1984: 466), Harris (2004: 69)
  782. Usnea lapponica Vain. - Harris (2004: 69)
  783. Usnea longissima Ach. - Brodo (1968: 244), Harris (2004: 69)
  784. Usnea mutabilis Stirt. - Brodo (1968: 245), Harris (2004: 69)
  785. Usnea rubicunda Stirt. - Harris (1987: 4), Harris (2004: 69 as Usnea pensylvanica)
  786. Usnea strigosa (Ach.) A. Eaton subsp. strigosa - Brodo (1968: 245), Harris (2004: 69)
  787. Usnea subfloridana Stirt. - Thomson (1984: 469), Harris (2004: 69)
  788. Usnea subfusca Stirt. - Harris (2004: 69)
  789. Usnea subgracilis Motyka - Harris (2004: 69 as Usnea hesperina)
  790. Usnea subscabrosa Nyl. ex Motyka - Harris (2004: 69)
  791. Usnea trichodea Ach. - Brodo (1968: 246), Harris (2004: 69)

  792. Usnocetraria oakesiana (Tuck.) M. J. Lai & C. J. Wei - Harris (2004: 56 as Allocetraria oakesiana)

  793. Vahliella leucophaea (Vahl) P. M. Jørg. - Harris (2004: 60 as Fuscopannaria leucophaea)

  794. Varicellaria velata (Turn.) Schmitt & Lumbsch - Brodo (1968: 211 as Pertusaria velata), Harris (2004: 65 as Pertusaria velata)

  795. Variolaria ophthalmiza Nyl. - Harris (2004: 65 as Pertusaria ophthalmiza)
  796. Variolaria pustulata (Brodo & W. L. Culb.) Lendemer, Hodkinson & R. C. Harris - Harris (2004: 63 as Loxospora pustulata)
  797. Variolaria trachythallina (Erichsen in Degel.) Lendemer, Hodkinson & R. C. Harris - Brodo (1968: 210 as Pertusaria trachythallina), Harris (2004: 65 as Pertusaria trachythallina)
  798. Variolaria waghornei (Hulting) Darb. - Dibben (1980: as Pertusaria waghornei), Harris (2004: 65 as Pertusaria waghornei)

  799. Verrucaria calkinsiana Servít - Harris (2004: 69)
  800. Verrucaria compacta (A. Massal.) Jatta - Harris (2004: 69)
  801. Verrucaria halizoa Leight. - Brodo (1968: 153 as Verrucaria microspora), Harris (2004: 69)
  802. Verrucaria hydrela Ach. - Harris (2004: 69)
  803. Verrucaria latebrosa Körb. - Harris (2004: 69)
  804. Verrucaria margacea (Wahlenb.) Wahlenb. - Harris (2004: 69)
  805. Verrucaria muralis Ach. - Brodo (1968: 154), Thomson (1997: 641), Harris (2004: 69)
  806. Verrucaria nigrescens Pers. - Brodo (1968: 154), Thomson (1997: 642), Harris (2004: 69)
  807. Verrucaria rupestris Schrad. - Thomson (1997: 643)
  808. Verrucaria silicicola Fink in Hedr. - Fink (xx: xx Type), Brodo (1968: 154), Harris (2004: 69)

  809. Vezdaea leprosa (P. James) Vezda - Harris (2004: 69)

  810. Violella fucata (Stirt.) T. Sprib. - Harris (2004: 64 as Mycoblastus fucatus), Hauck et al. (2005: 5 as Mycoblastus fucatus)

  811. Vulpicida pinastri (Scop.) J.-E. Mattsson & M. J. Lai - Thomson (1984: 93 as Cetraria pinastri), Harris (2004: 69)
  812. Vulpicida viridis (Halsey) J.-E. Mattsson & M. J. Lai - Brodo (1968: 240 sub Cetraria viridis), Harris (2004: 69)

  813. Wahlenbergiella mucosa (Wahlenb.) Gueidan & Thüs - Thomson (1997: 641 as Verrucaria mucosa)
  814. Wahlenbergiella striatula (Wahlenb.) Gueidan & Thüs - Thomson (1997: 645 as Verrucaria striatula)

  815. Xanthocarpia feracissima (H. Magn.) Frödén, Arup & Søchting - Brodo (1968: 250 as Caloplaca feracissima), Harris (2004: 57 as Caloplaca feracissima)

  816. Xanthomendoza fallax (Hepp ex Arnold) Søchting, Kärnefelt & S. Y. Kondr. - Brodo (1968: 251 as Xanthoria fallax), Thomson (1984: 486 as Xanthoria fallax), Harris (2004: 69 as Xanthoria fallax)
  817. Xanthomendoza fulva (Hoffm.) Søchting, Kärnefelt & S. Y. Kondr. - Harris (2004: 69 as Xanthoria fulva)
  818. Xanthomendoza hasseana (Räsänen) Søchting, Kärnefelt & S. Y. Kondr. - Harris (2004: 69 as Xanthoria hasseana)
  819. Xanthomendoza ulophyllodes Räsänen Søchting, Kärnefelt & S. Y. Kondr. - Harris (2004: 69 as Xanthoria ulophyllodes)

  820. Xanthoparmelia angustiphylla (Gyeln.) Hale - Harris (2004: 69)
  821. Xanthoparmelia conspersa (Ehrh. ex Ach.) Hale - Brodo (1968: 228 sub Parmelia conspersa), Harris (2004: 69)
  822. Xanthoparmelia cumberlandia (Gyeln.) Hale - Harris (2004: 69)
  823. Xanthoparmelia dierythra (Hale) Hale - Harris (2004: 69)
  824. Xanthoparmelia novomexicana (Gyeln.) Hale - Brodo (1968: 227 as Parmelia arseneana)
  825. Xanthoparmelia plittii (Gyeln.) Hale - Brodo (1968: 233 as Parmelia plittii), Harris (2004: 69)
  826. Xanthoparmelia stenophylla (Ach.) Ahti & D. Hawksw. - Brodo (1968: 234 as Parmelia stenophylla), Harris (2004: 69 as Xanthoparmelia somloensis)
  827. Xanthoparmelia subramigera (Gyeln.) Hale - Harris (2004: 69)
  828. Xanthoparmelia tasmanica (Hook. f. & Taylor) Hale - Brodo (1968: 236 as Parmelia tasmanica), Harris (2004: 69)
  829. Xanthoparmelia viriduloumbrina (Gyeln.) Lendemer - Thomson (1984: 480 erroneously as Xanthoparmelia taractica)

  830. Xanthoria parietina (L.) Beltr. - Brodo (1968: 251), Harris (2004: 69)

  831. Xylographa opegraphella Nyl. ex Rothr. - Brodo (1968: 158)

  832. Xylopsora friesii (Ach. in Lilj.) Bendiksby & Timdal - Thomson (1997: 247 as Hypocenomyce friesii), Harris (2004: 61 as Hypocenomyce friesii), Hauck et al. (2005: 5 as Hypocenomyce friesii)