Checklist of lichens of Quebec (Canada)
Version 1 December 2018

 

  1. Acarospora badiofusca (Nyl.) Th. Fr. - Thomson (1997: 21)
  2. Acarospora fuscata (Nyl.) Arnold - Thomson (1997: 24)
  3. Acarospora glaucocarpa (Wahlenb.) Körb. - Thomson (1997: 25)
  4. Acarospora molybdina (Wahlenb. in Ach.) A. Massal - Thomson (1997: 28)
  5. Acarospora peliscypha Th. Fr. - Thomson (1997: 30)

  6. Alectoria nigricans (Ach.) Nyl. - Thomson (1984: 35)
  7. Alectoria ochroleuca (Hoffm.) A. Massal. - Le Gallo (1952: 225), Thomson (1984: 37)
  8. Alectoria vexillifera (Nyl.) Stizenb. - Thomson (1984: 38)

  9. Allantoparmelia almquistii (Vain.) Essl. - Thomson (1984: 297 as Parmelia almquistii)
  10. Allantoparmelia alpicola (Th. Fr.) Essl. - Thomson (1984: 299 as Parmelia alpicola)

  11. Amandinea punctata (Hoffm.) Coppins & Scheid. - Thomson (1997: 138 as Buellia punctata)

  12. Amygdalaria elegantior (Magnusson) Hertel & Brodo - Thomson (1997: 41)
  13. Amygdalaria panaeola (Ach.) Hertel & Brodo - Thomson (1997: 42)
  14. Amygdalaria pelobotryon (Wahlenb. in Ach.) Norman - Thomson (1997: 43)

  15. Anaptychia crinalis (Schaer.) Vezda - Thomson (1984: 40 erroneously as Anaptychia kaspica)

  16. Arctocetraria andrejevii (Oxner) Kärnefelt & A. Thell - Thomson (1984: 72 as Cetraria andrejevii)

  17. Arctoparmelia centrifuga (L.) Hale - Thomson (1984: 476 as Xanthoparmelia centrifuga)
  18. Arctoparmelia incurva (Pers.) Hale - Thomson (1984: 478 as Xanthoparmelia incurva)
  19. Arctoparmelia separata (Th. Fr.) Hale - Thomson (1984: 479 as Xanthoparmelia separata)

  20. Arthonia lapidicola (Taylor) Branth & Rostrup - Thomson (1997: 46)
  21. Arthonia patellulata Nyl. - Thomson (1997: 47)

  22. Arthrorhaphis alpina (Schaer.) R. Sant. - Thomson (1997: 50)

  23. Aspicilia berntii A. Nordin, Tibell & Owe-Larsson - Thomson (1997: 80 as Aspicilia mastoidea)
  24. Aspicilia caesiocinerea (Nyl. ex Malbr.) Arnold - Thomson (1997: 65)
  25. Aspicilia cinerea (L.) Körb. - Thomson (1997: 68)

  26. Athallia holocarpa (Hoffm.) Arup, Frödén & Søchting - Thomson (1997: 164 as Caloplaca holocarpa)

  27. Bacidia bagliettoana (A. Massal. & de Not. in A. Massal.) Jatta - Thomson (1997: 99)
  28. Bacidia beckhausii Körb. - Thomson (1997: 100)
  29. Bacidia coprodes (Ach.) Lettau - Thomson (1997: 112 erroneously as Bacidia trachona)
  30. Bacidia igniarii (Nyl.) Oxner - Thomson (1997: 103)
  31. Bacidia microcarpa (Th. Fr.) Lettau - Thomson (1997: 105)
  32. Bacidia rubella (Hoffm.) A. Massal. - Thomson (1997: 107)

  33. Baeomyces carneus (Retz.) Flörke - Thomson (1984: 48)
  34. Baeomyces placophyllus Ach. - Thomson (1984: 49)
  35. Baeomyces rufus (Huds.) Rebent. - Thomson (1984: 52)

  36. Bellemerea alpina (Sommerf.) Clauzade & Cl. Roux - Thomson (1997: 115)
  37. Bellemerea cinereorufescens (Ach.) Clauzade & Cl. Roux - Thomson (1997: 116)

  38. Biatora helvola Körb. ex Hellb. - Thomson (1997: 349 as Lecidea helvola)
  39. Biatora vernalis (L.) Fr. - Thomson (1997: 389 as Lecidea vernalis)

  40. Bilimbia lobulata (Sommerf.) Hafellner & Coppins - Thomson (1997: 617 as Toninia lobulata)
  41. Bilimbia sabuletorum (Schreb.) Arnold - Thomson (1997: 422 as Mycobilimbia sabuletorum)

  42. Blastenia ammiospila (Wahlenb.) Arup, Søchting & Frödén - Thomson (1997: 151 as Caloplaca ammiospila)

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

  44. Bryobilimbia diapensiae (Th. Fr.) Fryday, Printzen & S. Ekman - Thomson (1997: 342 as Lecidea diapensiae)

  45. Bryocaulon divergens (Ach.) Kärnefelt - Le Gallo (1952: 225 as Alectoria divergens), Thomson (1984: 199 as Cornicularia divergens)

  46. Bryonora castanea (Hepp) Poelt - Thomson (1997: 122)

  47. Bryoplaca jungermanniae (Vahl) Søchting, Frödén & Arup - Thomson (1997: 166 as Caloplaca jungermanniae)
  48. Bryoplaca sinapisperma (Lam. & DC.) Søchting, Frödén & Arup - Thomson (1997: 171 as Caloplaca sinapisperma)

  49. Bryoria capillaris (Ach.) Brodo & D. Hawksw. - Thomson (1984: 55)
  50. Bryoria chalybeiformis (L.) Brodo & D. Hawksw. - Le Gallo (1952: 225 as Alectoria chalybeiformis), Thomson (1984: 56)
  51. Bryoria fuscescens (Gyeln.) Brodo & D. Hawksw. - Le Gallo (1952: 225 as Alectoria jubata), Thomson (1984: 57)
  52. Bryoria glabra (Motyka) Brodo & D. Hawksw. - Thomson (1984: 58)
  53. Bryoria lanestris (Ach.) Brodo & D. Hawksw. - Thomson (1984: 59)
  54. Bryoria nadvornikiana (Gyeln.) Brodo & D. Hawksw. - Thomson (1984: 61)
  55. Bryoria nitidula ( Th. Fr.) Brodo & D. Hawksw. - Thomson (1984: 63)
  56. Bryoria simplicior (Vain.) Brodo & D. Hawksw. - Thomson (1984: 65)
  57. Bryoria tenuis (Å.E. Dahl) Brodo & D. Hawksw. - Thomson (1984: 66)
  58. Bryoria trichodes (Michx.) Brodo & D. Hawksw. subsp. trichodes - Thomson (1984: 68)

  59. Buellia disciformis (Fr.) Mudd - Thomson (1997: 129)

  60. Calicium trabinellum (Ach.) Ach. - Thomson (1997: 145)

  61. Calogaya pusilla (A. Massal.) Arup, Frödén & Søchting - Thomson (1997: 169 as Caloplaca saxicola)

  62. Caloplaca cerina (Ehrh. ex Hedwig) Th. Fr. - Thomson (1997: 154)
  63. Caloplaca fraudans (Th. Fr.) H. Olivier- Thomson (1997: 162)
  64. Caloplaca stillicidiorum (Vahl) Lynge - Thomson (1997: 172)

  65. Calvitimela armeniaca (DC.) Hafellner - Thomson (1997: 60 as Tephromela armeniaca)

  66. Candelariella aurella (Hoffm.) Zahlbr. - Thomson (1997: 182)
  67. Candelariella efflorescens R. C. Harris & W. R. Buck - Harris & Buck (1978: 155 Protologue), Thomson (1997: 185) Type in MICH
  68. Candelariella placodizans (Nyl.) H. Magn. - Thomson (1997: 186)
  69. Candelariella vitellina (Hoffm.) Müll. Arg. - Thomson (1997: 189)

  70. Carbonea vorticosa (Flörke) Hertel - Thomson (1997: 193)

  71. Catillaria glauconigrans (Tuck.) Hasse - Thomson (1997: 197)

  72. Catolechia wahlenbergii (Ach.) Körb. - Thomson (1997: 202)

  73. Cetraria aculeata (Schreb.) Fr. - Thomson (1984: 198 as Cornicularia aculeata)
  74. Cetraria ericetorum Opiz - Thomson (1984: 79)
  75. Cetraria islandica (L.) Ach. - Le Gallo (1952: 226), Thomson (1984: 84)
  76. Cetraria laevigata Rass. - Thomson (1984: 88)
  77. Cetraria nigricans (Retz.) Nyl. - Thomson (1984: 89)

  78. Cetrariella delisei (Bory ex Schaer.) Kärnefelt & A. Thell - Thomson (1984: 77 as Cetraria delisei)

  79. Cladonia acuminata (Ach.) Norrl. - Thomson (1984: 105)
  80. Cladonia amaurocraea (Flörke) Schaer. - Le Gallo (1952: 226), Thomson (1984: 107)
  81. Cladonia arbuscula (Wallr.) Rabenh. - Thomson (1984: 110)
  82. Cladonia bacilliformis (Nyl.) Vain. - Thomson (1984: 112)
  83. Cladonia bellidiflora (Ach.) Schaer. - Thomson (1984: 113)
  84. Cladonia botrytes (Hag.) Willd. - Thomson (1984: 114)
  85. Cladonia cariosa (Ach.) Spreng. - Thomson (1984: 116)
  86. Cladonia carneola (Fr.) Fr. - Thomson (1984: 117)
  87. Cladonia cenotea (Ach.) Schaer. - Thomson (1984: 118)
  88. Cladonia chlorophaea (Flörke ex. Sommerf.) Spreng. - Thomson (1984: 119)
  89. Cladonia coccifera (L.) Willd. - Le Gallo (1952: 226), Thomson (1984: 121)
  90. Cladonia coniocraea (Flörke) Spreng. - Thomson (1984: 122)
  91. Cladonia cornuta (L.) Hoffm. subsp. cornuta - Thomson (1984: 124)
  92. Cladonia crispata (Ach.) Flot. - Thomson (1984: 125)
  93. Cladonia cryptochlorophaea Asah. - Thomson (1984: 126)
  94. Cladonia cyanipes (Somm.) Nyl. - Thomson (1984: 127)
  95. Cladonia decorticata (Flörke) Spreng. - Thomson (1984: 128)
  96. Cladonia deformis (L.) Hoffm. - Le Gallo (1952: 226), Thomson (1984: 129)
  97. Cladonia digitata (L.) Hoffm. - Thomson (1984: 131)
  98. Cladonia ecmocyna Leight. - Thomson (1984: 132)
  99. Cladonia fimbriata (L.) Fr. - Thomson (1984: 133)
  100. Cladonia furcata (Huds.) Schrad. - Le Gallo (1952: 226)
  101. Cladonia gracilis (L.) Willd. subsp. turbinata (Ach.) Ahti - Thomson (1984: 136)
  102. Cladonia gracilis (L.) Willd. var. gracilis - Thomson (1984: 137)
  103. Cladonia grayi Merrl. - Thomson (1984: 139)
  104. Cladonia labradorica Ahti & Brodo - Ahti & Brodo (1981: 239 Type in Ottawa, Canada CANL), Ahti (1993: 82)
  105. Cladonia macilenta Hoffm. - Thomson (1984: 111 as Cladonia bacillaris)
  106. Cladonia macrophylla (Schaer.) Stenh. - Thomson (1984: 141)
  107. Cladonia macrophyllodes Nyl. - Thomson (1984: 143)
  108. Cladonia maxima (Asahina) Ahti - Thomson (1984: 145)
  109. Cladonia merochlorophaea Asahina - Thomson (1984: 143)
  110. Cladonia mitis Sandst. - Thomson (1984: 148)
  111. Cladonia multiformis G. Merr. - Thomson (1984: 149)
  112. Cladonia phyllophora Ehrh. ex Hoffm. - Thomson (1984: 153)
  113. Cladonia pleurota (Flörke) Schaer. - Thomson (1984: 154)
  114. Cladonia pocillum (Ach.) O. J. Rich. - Thomson (1984: 156)
  115. Cladonia portentosa (Dufour) Coem. - Le Gallo (1952: 226 as Cladonia impexa)
  116. Cladonia pyxidata (L.) Hoffm. - Thomson (1984: 158)
  117. Cladonia rangiferina (L.) Weber ex F. H. Wigg. - Thomson (1984: 159)
  118. Cladonia scabriuscula (Delise) Nyl. - Thomson (1984: 160)
  119. Cladonia squamosa (Scop.) Hoffm. - Le Gallo (1952: 227), Thomson (1984: 161)
  120. Cladonia stellaris (Opiz) Pouzar & Vezda - Thomson (1984: 163), Thomson (1984: 104 as Cladonia aberrans)
  121. Cladonia stricta (Nyl.) Nyl. - Thomson (1984: 164)
  122. Cladonia subfurcata (Nyl.) Arn. - Thomson (1984: 166)
  123. Cladonia subulata (L.) F. H. Wigg. - Thomson (1984: 168)
  124. Cladonia sulphurina (Michx.) Fr. - Thomson (1984: 169)
  125. Cladonia symphycarpa (Ach.) Fr. - Thomson (1984: 170)
  126. Cladonia turgida Ehrh. ex Hoffm. - Thomson (1984: 172)
  127. Cladonia uncialis (L.) F. H. Wigg. - Thomson (1984: 173)
  128. Cladonia verticillata (Hoffm.) Schaer. - Thomson (1984: 174)
  129. Cladonia wainioi Savicz - Thomson (1984: 157 as Cladonia pseudorangiformis)

  130. Collema furfuraceum (Schaer.) Du Rietz - Thomson (1984: 187)

  131. Cyphelium tigillare (Ach.) Ach. - Thomson (1997: 214)

  132. Dactylina arctica (Richards.) Nyl. - Thomson (1984: 203)
  133. Dactylina ramulosa (Hook.) Tuck. - Thomson (1984: 207)

  134. Dermatocarpon luridum (With.) J. R. Laundon - Thomson (1984: 213 as Dermatocarpon fluviatile)
  135. Dermatocarpon miniatum (L.) Mann. - Thomson (1984: 219)

  136. Dibaeis baeomyces (L. f.) Rambold & Hertel - Thomson (1984: 51 as Baeomyces roseus)

  137. Dimelaena oreina (Ach.) Norman - Thomson (1997: 216)

  138. Diploschistes muscorum (Scop.) R. Sant. - Thomson (1997: 218)
  139. Diploschistes scruposus (Schreber) Norman - Thomson (1997: 218)

  140. Diplotomma alboatrum (Hoffm.) Flot. - Thomson (1997: 127 as Buellia alboatra)

  141. Enchylium bachmanianum (Fink) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 179 as Collema bachmanianum)
  142. Enchylium polycarpon (Hoffm.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 190 as Collema polycarpon)
  143. Enchylium tenax (Sw.) Gray - Thomson (1984: 191 as Collema tenax)

  144. Euopsis granatina (Sommerf.) Nyl. - Thomson (1997: 223)
  145. Euopsis pulvinata (Schaer.) Nyl. - Thomson (1997: 518 as Pyrenopsis pulvinata)

  146. Evernia mesomorpha Nyl. - Thomson (1984: 229)

  147. Farnoldia jurana (Schaer.) Hertel - Thomson (1997: 225)

  148. Frutidella caesioatra Schaer. - Thomson (1997: 334 Lecidea caesioatra)

  149. Flavocetraria cucullata (Bellardi) Kärnefelt & A. Thell - Thomson (1984: 76 as Cetraria cucullata)
  150. Flavocetraria nivalis (L.) Kärnefelt & A. Thell - Thomson (1984: 92 as Cetraria nivalis)

  151. Flavoplaca citrina (Hoffm.) Arup, Frödén & Søchting - Thomson (1997: 155 as Caloplaca citrina)

  152. Fuscidea recensa (Stirt.) Hertel, V. Wirth & Vezda - Thomson (1997: 234)

  153. Fuscopannaria confusa (P. M. Jørg.) P. M. Jørg. - Roy (2003: 44)
  154. Fuscopannaria hookerioides P. M. Jørg. - Roy (2003: 45)

  155. Gyalolechia bracteata (Hoffm.) A. Massal. - Thomson (1997: 228 as Fulgensia bracteata)
  156. Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup - Thomson (1997: 161 as Caloplaca flavovirescens)
  157. Gyalolechia xanthostigmoidea (Räsänen) Søchting, Frödén & Arup - Thomson (1997: 158 as Caloplaca discolor)

  158. Helocarpon crassipes (Th. Fr.) Coppins - Thomson (1997: 414 as Micarea crassipes)

  159. Hypocenomyce scalaris (Ach. ex Lilj.) M. Choisy - Thomson (1997: 248)

  160. Hypogymnia austerodes Nyl. - Thomson (1984: 237)
  161. Hypogymnia bitteri (Lynge) Ahti - Thomson (1984: 238)
  162. Hypogymnia enteromorpha (Ach.) Nyl. - Le Gallo (1952: 227 as Parmelia enteromorpha)
  163. Hypogymnia physodes (L.) Nyl. - Le Gallo (1952: 227 as Parmelia physodes), Thomson (1984: 241)
  164. Hypogymnia pulverata (Nyl. ex Crombie) Elix - Brodo (1989: 185)
  165. Hypogymnia subobscura (Vain) Poelt - Thomson (1984: 242)
  166. Hypogymnia vittata (Ach.) Gas. - Thomson (1984: 243)

  167. Icmadophila ericetorum (L.) Zahlbr.- Thomson (1997: 249)

  168. Imshaugia aleurites (Ach.) S. F. Meyer - Thomson (1984: 321 as Parmeliopsis aleurites)

  169. Ionaspis lacustris (With.) Lutzoni - Thomson (1997: 245 as Hymenelia lacustris)

  170. Japewia tornoensis Nyl. - Thomson (1997: 387 as Lecidea tornoensis)

  171. Lasallia papulosa (Ach.) Llano - Thomson (1984: 245)
  172. Lasallia pensylvanica (Hoffma.) Llano - Thomson (1984: 246)

  173. Lathagrium fuscovirens (With.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 192 as Collema tuniforme)
  174. Lathagrium undulatum (Flot.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 194 as Collema undulatum)

  175. Lecanora allophana (Ach.) Nyl. - Thomson (1997: 266)
  176. Lecanora argentea Brodo - Thomson (1997: 281 as Lecanora fuliginosa)
  177. Lecanora argopholis (Ach.) Ach. - Thomson (1997: 267)
  178. Lecanora atrosulphurea (Wahlenb.) Ach. - Thomson (1997: 267)
  179. Lecanora cenisia Ach. - Thomson (1997: 272)
  180. Lecanora chlarotera Nyl. - Thomson (1997: 273), Thomson (1997: 301 as Lecanora rugosella)
  181. Lecanora circumborealis Brodo & Vitik. - Thomson (1997: 274)
  182. Lecanora crenulata Hook. - Thomson (1997: 277)
  183. Lecanora dispersa (Pers.) Sommerf. - Thomson (1997: 278)
  184. Lecanora epibryon (Ach.) Ach. - Thomson (1997: 279)
  185. Lecanora expallens Ach. - Thomson (1997: 281)
  186. Lecanora hagenii (Ach.) Ach. - Thomson (1997:286)
  187. Lecanora intricata (Ach.) Ach.- Thomson (1997: 288)
  188. Lecanora muralis (Schreber) Rabenh. - Thomson (1997: 295)
  189. Lecanora orae-frigidae R. Sant. - Thomson (1997: 297)
  190. Lecanora perplexa Brodo - Thomson (1997: 298)
  191. Lecanora albellula Nyl. - Thomson (1997: 299 as Lecanora piniperda)
  192. Lecanora polytropa (Ehrh. in Hoffm.) Rabenh. - Thomson (1997: 299)
  193. Lecanora pulicaris (Pers.) Ach. - Thomson (1997: 301)
  194. Lecanora rupicola (L.) Zahlbr. - Thomson (1997: 303)
  195. Lecanora straminea (Wahlenb.) Ach. - Thomson (1997: 306)
  196. Lecanora subintricata (Nyl.) Th. Fr. - Thomson (1997: 307)
  197. Lecanora subrugosa Nyl. - Thomson (1997: 308)
  198. Lecanora symmicta (Ach.) Ach. - Thomson (1997: 309)
  199. Lecanora torrida Vain. - Thomson (1997: 310)
  200. Lecanora varia (Hoffm.) Ach. - Thomson (1997: 311)
  201. Lecanora xylophila Hue - Thomson (1997: 284 as Lecanora grantii)

  202. Lecidea atrobrunnea (Ramond ex Lam. & DC.) Schaer. - Thomson (1997: 327)
  203. Lecidea auriculata Th. Fr. - Thomson (1997: 329)
  204. Lecidea confluens (W. A. Weber) Ach. - Thomson (1997: 339)
  205. Lecidea diducens Nyl. - Thomson (1997: 343)
  206. Lecidea lapicida (Ach.) Ach. - Thomson (1997: 355 as Lecidea lactea), Thomson (1997: 357)
  207. Lecidea lithophila (Ach.) Ach. - Thomson (1997: 362)
  208. Lecidea nylanderi (Anzi) Th. Fr. - Thomson (1997: 365)
  209. Lecidea paupercula Th. Fr. - Thomson (1997: 369)
  210. Lecidea picea Lynge - Thomson (1997: 371)
  211. Lecidea plana (J. Lahm. in Körb.) Nyl. - Thomson (1997: 372)
  212. Lecidea plebeja Nyl. - Thomson (1997: 374)
  213. Lecidea ramulosa Th. Fr. - Thomson (1997: 376)
  214. Lecidea tessellata Flörke - Thomson (1997: 384)

  215. Lecidella carpathica Körb. - Thomson (1997: 395)
  216. Lecidella euphorea (Flörke) Hertel - Thomson (1997: 398)
  217. Lecidella stigmatea (Ach.) Hertel & Leuck. - Thomson (1997: 402)
  218. Lecidella wulfenii (Hepp) Körb. - Thomson (1997: 403)

  219. Lecidoma demissum (Rutstr.) Gotth. Schneider & Hertel - Thomson (1997: 405)

  220. Leciophysma finmarkicum Th. Fr. - Thomson (1984: 248)
  221. Leciophysma furfurascens (Nyl.) Gyeln. - Thomson (1984: 249)

  222. Lempholemma polyanthes (Bernh.) Malme - Thomson (1997: 407 as Lempholemma myriococcum)
  223. Lempholemma radiatum (Sommerf.) Henssen - Thomson (1997: 407)

  224. Leproplaca cirrochroa (Ach.) Arup, Frödén & Søchting - Thomson (1997: 155 as Caloplaca cirrochroa)

  225. Leptogium saturninum (Dicks.) Nyl. - Thomson (1984: 262)

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

  227. Lobarina scrobiculata (Scop.) Nyl. ex Cromb. - Thomson (1984: 271 as Lobaria scrobiculata)

  228. Lobothallia alphoplaca (Wahlenb. in Ach.) Hafellner - Thomson (1997: 59 as Aspicilia alphoplaca)

  229. Lopadium coralloideum (Nyl.) Lynge - Thomson (1997: 409)
  230. Lopadium pezizoideum (Ach.) Körb. - Thomson (1997: 411)

  231. Megaspora verrucosa (Ach.) Hafellner & V. Wirth - Thomson (1997: 443 as Pachyospora verrucosa)

  232. Melanelia commixta (Nyl.) A. Thell - Thomson (1984: 75 as Cetraria commixta)
  233. Melanelia hepatizon (Ach.) A. Thell - Thomson (1984: 82 as Cetraria hepatizon)

  234. Melanelixia glabratula (Lamy) Sandler & Arup - Thomson (1984: 303 as Parmelia glabratula)
  235. Melanelixia subaurifera (Nyl.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 316 as Parmelia subaurifera)

  236. Melanohalea elegantula (Zahlbr.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 300 as Parmelia elegantula)
  237. Melanohalea exasperatula (Nyl.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 300 as Parmelia exasperatula)
  238. Melanohalea infumata (Nyl.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 304 as Parmelia infumata)
  239. Melanohalea olivacea (L.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 306 as Parmelia olivacea)
  240. Melanohalea septentrionalis (Lynge) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 311 as Parmelia septentrionalis)

  241. Micarea assimilata (Nyl.) Coppins - Thomson (1997: 413)
  242. Micarea melaena (Nyl.) Hedl. - Thomson (1997: 419)
  243. Micarea turfosa (A. Massal.) Du Rietz - Thomson (1997: 420)

  244. Miriquidica leucophaea (Flörke ex Rabenh.) Nyl. - Thomson (1997: 359 as Lecidea leucophaea)
  245. Miriquidica lulensis (Hellbom) Hertel & Rambold - Thomson (1997:363 as Lecidea lulensis)

  246. Montanelia disjuncta (Erichsen) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 299 as Parmelia disjuncta)
  247. Montanelia panniformis (Nyl.) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 309 as Parmelia panniformis)
  248. Montanelia sorediata (Ach.) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 312 as Parmelia sorediosa)

  249. Mycobilimbia berengeriana (A. Massal.) Th. Fr. - Thomson (1997: 331 as Lecidea berengeriana)
  250. Mycobilimbia epixanthoides (Nyl.) Vitik., Ahti, Kuusinen, Lommi & T. Ulvinen - Thomson (1997: 101 as Bacidia epixanthoides)
  251. Mycobilimbia pilularis (Körb.) Hafellner & Türk - Thomson (1997: 110 as Bacidia sphaeroides)

  252. Mycoblastus affinis (Schaer.) Schauer- Thomson (1997: 424)
  253. Mycoblastus sanguinarius (L.) Norman - Thomson (1997: 426)

  254. Nephroma arcticum (L.) Torss. - Thomson (1984: 277)
  255. Nephroma bellum (Spreng.) Tuck. - Thomson (1984: 278)
  256. Nephroma expallidum (Nyl.) Nyl. - Thomson (1984: 279)
  257. Nephroma helveticum Ach. - Thomson (1984: 280)
  258. Nephroma parile (Ach.) Ach. - Thomson (1984: 282)
  259. Nephroma resupinatum (L.) Ach. - Thomson (1984: 283)

  260. Ochrolechia androgyna (Hoffm.) Arnold - Thomson (1997: 430)
  261. Ochrolechia frigida (Sw.) Lynge - Thomson (1997: 431)
  262. Ochrolechia inaequatula (Nyl.) Zahlbr. - Thomson (1997: 434)
  263. Ochrolechia pseudopallescens Brodo - Brodo (1991: 755 Type)
  264. Ochrolechia upsaliensis (L.) A. Massal. - Thomson (1997: 436)

  265. Ophioparma lapponica (Räsänen) Hafellner & Rogers - Thomson (1997: 440)

  266. Orphniospora moriopsis (A. Massal.) D. Hawksw. - Thomson (1997: 441)

  267. Pannaria conoplea (Ach.) Bory - Thomson (1984: 292)

  268. Parmelia fraudans (Nyl.) Nyl. - Thomson (1984: 302)
  269. Parmelia omphalodes (L.) Ach. - Thomson (1984: 308)
  270. Parmelia saxatilis (L.) Ach. - Le Gallo (1952: 227), Thomson (1984: 310)
  271. Parmelia squarrosa Hale - Thomson (1984: 313)
  272. Parmelia sulcata Tayl. - Le Gallo (1952: 227), Thomson (1984: 318)

  273. Parmeliella praetermissa (Nyl.) James - Thomson (1984: 320)
  274. Parmeliella triptophylla (Ach.) Mül. Arg. - Thomson (1984: 321)

  275. Parmeliopsis ambigua (Wulf.) Nyl. - Thomson (1984: 325)
  276. Parmeliopsis hyperopta (Ach.) Arnold - Thomson (1984: 326)

  277. Parvoplaca tiroliensis (Zahlbr.) Arup, Søchting & Frödén - Thomson (1997: 173 as Caloplaca tiroliensis)

  278. Peltigera aphthosa (L.) Willd. - Thomson (1984: 329)
  279. Peltigera collina (Ach.) Schrad. - Thomson (1984: 334)
  280. Peltigera didactyla (With.) J. R. Laundon - Thomson (1984: 332 as Peltigera canina f. sorediata)
  281. Peltigera horizontalis (Huds.) Baumg. - Thomson (1984: 337)
  282. Peltigera lepidophora (Nyl.) Vain. - Thomson (1984: 338)
  283. Peltigera leucophlebia (Nyl.) Gyeln. - Thomson (1984: 330 as Peltigera aphthosa var. leucophlebia)
  284. Peltigera malacea (Ach.) Funck. - Thomson (1984: 339)
  285. Peltigera membranacea (Ach.) Nyl. - Thomson (1984: 340)
  286. Peltigera polydactyla (Neck.) Hoffm. - Thomson (1984: 343)
  287. Peltigera rufescens (Weis.) Mudd - Thomson (1984: 333 as Peltigera canina var. rufescesns)
  288. Peltigera scabrosa Th. Fr. - Thomson (1984: 344)
  289. Peltigera venosa (L.) Baumg. - Thomson (1984: 345)

  290. Pertusaria leioplaca xxx - Thomson (1997: 447 as Pertusaria alpina)
  291. Pertusaria atra Lynge - Thomson (1997: 448)
  292. Pertusaria bryontha (Ach.) Nyl. - Thomson (1997: 449)
  293. Pertusaria carneopallida (Nyl.) Anzi ex Nyl. - Thomson (1997: 451)
  294. Pertusaria coriacea (Th. Fr.) Th. Fr. - Thomson (1997: 452)
  295. Pertusaria dactylina (Ach.) Nyl. - Thomson (1997: 453)
  296. Pertusaria geminipara (Th. Fr.) Knight ex Brodo - Thomson (1997: 455)
  297. Pertusaria oculata (Dickson) Th. Fr. - Thomson (1997: 458)
  298. Pertusaria panyrga (Ach.) A. Massal. - Thomson (1997: 459)
  299. Pertusaria subdactylina Nyl. - Thomson (1997: 461)
  300. Pertusaria subobducens Nyl. - Thomson (1997: 462)

  301. Phaeophyscia endococcina (Körb.) Moberg - Thomson (1984: 348)
  302. Phaeophyscia sciastra (Ach.) Moberg - Thomson (1984: 349)

  303. Physcia adscendens (Fr.) Oliv. - Thomson (1984: 352)
  304. Physcia aipolia (Humb.) Fürnrohr - Thomson (1984: 353)
  305. Physcia caesia (Hoffm.) Fürnrohr - Thomson (1984: 354)
  306. Physcia dubia (Hoffm.) Lettau - Thomson (1984: 355)
  307. Physcia phaea (Tuck.) J. W. Thomson - Thomson (1984: 356)
  308. Physcia tenella (Scop.) DC. subsp. marina (A. Nyl.) D. Hawksw. - Thomson (1984: 357 as Physcia subobscura)

  309. Physconia detersa (Nyl.) Poelt - Thomson (1984: 359)
  310. Physconia muscigena (Ach.) Poelt - Thomson (1984: 360)

  311. Pilophorus cereolus (Ach.) Th. Fr. in Hellbom - Thomson (1984: 362)
  312. Pilophorus dovrensis (Nyl.) Timdal, Hertel & Rambold - Thomson (1997: 367 as Lecidea pallida)
  313. Pilophorus robustus Th. Fr. - Thomson (1984: 363)

  314. Placidium lachneum (Ach.) B. de Lesd. - Thomson (1984: 217 as Dermatocarpon lachneum)

  315. Placynthiella oligotropha (J. R. Laundon) Coppins & James - Thomson (1997: 474)
  316. Placynthiella uliginosa (Schrad.) Coppins & James - Thomson (1997: 475)

  317. Placynthium nigrum (Huds.) Gray - Thomson (1984: 366)

  318. Plastimatia glauca (L.) W. L. Culb. & C. F. Culb. - Le Gallo (1952: 225 as Cetraria glauca), Thomson (1984: 368)

  319. Polyblastia cupularis A. Massal. - Thomson (1997: 478)
  320. Polyblastia theleodes (Sommerf.) Th. Fr. - Thomson (1997: 484)

  321. Polycauliona candelaria (L.) Frödén, Arup, & Søchting - Thomson (1984: 483 as Xanthoria candelaria)
  322. Polycauliona polycarpa (Hoffm.) Frödén, Arup, & Søchting - Le Gallo (1952: 227 as Xanthoria polycarpa), Thomson (1984: 487 as Xanthoria polycarpa)

  323. Polysporina simplex (Davis) Vezda - Thomson (1997: 486)

  324. Porpidia flavocoerulescens (Hornem.) Hertel & Schwab - Thomson (1997: 491 as Porpidia flavicunda), Thomson (1997: 492)
  325. Porpidia grisea Gowan - Thomson (1997: 493)
  326. Porpidia lowiana Gowan - Thomson (1997: 494)
  327. Porpidia ochrolemma (Vain.) Brodo & R. Sant. - Thomson (1997: 495 as Porpidia pseudolinodes)
  328. Porpidia speirea (Ach.) Kremp. - Thomson (1997: 497)
  329. Porpidia thomsonii Gowan - Thomson (1997: 498)
  330. Porpidia tuberculosa (Sm. in Sm. & Sow.) Hertel & Knoph - Thomson (1997: 500)

  331. Protoblastenia calva (Dickson) Zahlbr. - Thomson (1997: 502)
  332. Protoblastenia rupestris (Scop.) Steiner - Thomson (1997: 503)

  333. Protomicarea alpestris (Sommerf.) McCune - Thomson (1997: 326 as Lecidea alpestris)
  334. Protomicarea limosa (Ach.) Hafellner - Thomson (1997: 361 as Lecidea limosa)

  335. Protopannaria pezizoides (Weber) P. M. Jørg. & S. Ekman - Thomson (1984: 294 as Pannaria pezizoides)

  336. Protoparmelia badia (Hoffm.) Hafellner - Thomson (1997: 269 as Lecanora badia)

  337. Protothelenella sphinctrinoidella (Nyl.) H. Mayrhofer & Poelt - Thomson (1997: 504)
  338. Protothelenella sphinctrinoides (Nyl.) H. Mayrhofer & Poelt - Thomson (1997: 505)

  339. Pseudephebe minuscula (Nyl. ex Arnold) Brodo & D. Hawksw. - Thomson (1984: 373)
  340. Pseudephebe pubescens (L.) M. Choisy - Thomson (1984: 374)

  341. Psora decipiens (Hedwig) Hoffm. - Thomson (1997: 507)
  342. Psora globifera (Ach.) A. Massal. - Thomson (1997: 508)

  343. Psoroma hypnorum (Vahl) Gray - Thomson (1984: 375)

  344. Punctelia borreri (Sm.) Krog - Le Gallo (1952: 227 as Parmelia borreri)

  345. Ramalina calicaris (Fr.) Herre - Le Gallo (1952: 227 as Ramalina canaliculata)
  346. Ramalina farinacea (L.) Ach. - Le Gallo (1952: 227)
  347. Ramalina intermedia (Del. ex Nyl.) Nyl. - Thomson (1984: 379)
  348. Ramalina pollinaria (Westr.) Ach. - Le Gallo (1952: 227)
  349. Ramalina roesleri (Hoechst. ex Schaer.) Hue - Thomson (1984: 233 as Fisturiella roesleri)
  350. Ramalina thrausta (Ach.) Nyl. - Thomson (1984: 382)

  351. Ramboldia cinnabarina Sommerf. - Thomson (1997: 336 as Lecidea cinnabarina)

  352. Rhizocarpon badioatrum (Flörke ex Spreng.) Th. Fr. - Thomson (1997: 524)
  353. Rhizocarpon cinereovirens (Müll. Arg.) Vain. - Thomson (1997: 528)
  354. Rhizocarpon concentricum (Davis) Beltram. - Thomson (1997: 529)
  355. Rhizocarpon copelandii (Körb.) Th. Fr. - Thomson (1997: 531)
  356. Rhizocarpon eupetraeoides (Nyl.) Blomb. & Forss. - Thomson (1997: 532)
  357. Rhizocarpon eupetraeum (Nyl.) Arnold - Thomson (1997: 533)
  358. Rhizocarpon expallens Th. Fr. - Thomson (1997: 535)
  359. Rhizocarpon geminatum Körb. - Thomson (1997: 537)
  360. Rhizocarpon geographicum (L.) DC. - Thomson (1997: 538)
  361. Rhizocarpon grande (Flörke ex Flotow) Arnold - Thomson (1997: 539)
  362. Rhizocarpon hochstetteri (Körb.) Vain. - Thomson (1997: 540)
  363. Rhizocarpon inarense (Vain.) Vain. - Thomson (1997: 541)
  364. Rhizocarpon jemtlandicum Malme - Thomson (1997: 542)
  365. Rhizocarpon norvegicum Räsänen - Thomson (1997: 544)
  366. Rhizocarpon obscuratum (Ach.) A. Massal. - Thomson (1997: 545)
  367. Rhizocarpon polycarpum (Hepp) Th. Fr. - Thomson (1997: 546)
  368. Rhizocarpon riparium Räsänen - Thomson (1997: 548)
  369. Rhizocarpon rittokense (Hellbom) Th. Fr. - Thomson (1997: 549)
  370. Rhizocarpon superficiale (Schaer.) Vain. - Thomson (1997: 551)

  371. Rhizoplaca chrysoleuca (Sm.) Zopf - Thomson (1997: 554)
  372. Rhizoplaca melanophthalma (Ramond) Leuck. & Poelt - Thomson (1997: 555)

  373. Rinodina calcigena (Th. Fr.) Lynge - Thomson (1997: 562)
  374. Rinodina mniaraea (Ach.) Körb. - Thomson (1997: 567)
  375. Rinodina turfacea (Wahlenb.) Körb. - Thomson (1997: 571)

  376. Ropalospora lugubris (Sommerf.) Poelt - Thomson (1997: 571)

  377. Rusavskia elegans (Link) S. Y. Kondr. & Kärnefelt - Thomson (1984: 484 as Xanthoria elegans)
  378. Rusavskia sorediata (Vain.) S. Y. Kondr. & Kärnefelt - Thomson (1984: 487 as Xanthoria sorediata)

  379. Sagiolechia rhexoblephara (Nyl.) Zahlbr. - Thomson (1997: 575)

  380. Sarcogyne clavus (DC. in Lam. & DC.) Kremp. - Thomson (1997: 577)
  381. Sarcogyne regularis Körb. - Thomson (1997: 579)

  382. Sarcosagium campestre (Fr.) Poetsch & Schiedem. - Thomson (1997: 119 as Biatorella campestris)

  383. Schaereria tenebrosa (Flot.) Hertel & Poelt - Thomson (1997: 584)

  384. Scoliciosporum umbrinum (Ach.) Arnold - Thomson (1997: 585)

  385. Scytinium lichenoides (L.) Zahlbr. - Thomson (1984: 257 as Leptogium lichenoides)
  386. Scytinium tenuissimum (Dicks.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 264 as Leptogium tenuissimum)

  387. Siphula ceratites (Wahlenb.) Fr. - Thomson (1984: 384)

  388. Solorina bispora Nyl. - Thomson (1984: 386)
  389. Solorina crocea (L.) Ach. - Thomson (1984: 387)
  390. Solorina saccata (L.) Ach. - Thomson (1984: 390)
  391. Solorina spongiosa (Sm.) Anzi - Thomson (1984: 391)

  392. Sphaerophorus fragilis (L.) Pers. - Thomson (1984: 393)
  393. Sphaerophorus globosus (Huds.) Vain. - Thomson (1984: 394)

  394. Sporastatia polyspora (Nyl.) Grumm. - Thomson (1997: 588)
  395. Sporastatia testudinea (Ach.) A. Massal. - Thomson (1997: 589)

  396. Staurothele areolata (Ach.) Lettau - Thomson (1997: 592)
  397. Staurothele drummondii (Tuck.) Tuck. - Thomson (1997: 595)
  398. Staurothele fissa (Tayler) Zwackh. - Thomson (1997: 596)

  399. Stereocaulon alpinum Laurer - Thomson (1984: 400)
  400. Stereocaulon arcticum Lynge - Thomson (1984: 402)
  401. Stereocaulon arenarium (Savicz) I. M. Lamb - Thomson (1984: 403)
  402. Stereocaulon botryosum Ach. - Thomson (1984: 405)
  403. Stereocaulon condensatum Hoffm.- Thomson (1984: 407)
  404. Stereocaulon dactylophyllum Flörke - Thomson (1984: 410)
  405. Stereocaulon glareosum (Sav.) Magn. - Thomson (1984: 412)
  406. Stereocaulon grande (Magn.) Magn. - Thomson (1984: 413)
  407. Stereocaulon incrustatum Flörke - Thomson (1984: 415)
  408. Stereocaulon paschale (L.) Hoffm. - Thomson (1984: 418)
  409. Stereocaulon pileatum Ach.- Thomson (1984: 419)
  410. Stereocaulon rivulorum Magn. - Thomson (1984: 421)
  411. Stereocaulon saxatile Magn. - Thomson (1984: 423)
  412. Stereocaulon subcoralloides (Nyl.) Nyl. - Thomson (1984: 426)
  413. Stereocaulon tomentosum E. Fries - Le Gallo (1952: 227), Thomson (1984: 428)
  414. Stereocaulon vesuvianum Pers. - Thomson (1984: 430)

  415. Tephromela atra (Huds.) Hafellner - Thomson (1997: 633)

  416. Tetramelas geophila (Flörke ex Sommerf.) Norman - Thomson (1997: 133 as Buellia geophila)
  417. Tetramelas papillatus (Sommerf.) Kalb - Thomson (1997: 136 as Buellia papillata)

  418. Thamnolia subuliformis (Ehrh.) W. L. Culb. - Thomson (1984: 438)
  419. Thamnolia vermicularis (Sw.) Schaer. - Thomson (1984: 438)

  420. Thrombium epigaeum (Pers.) Wallr. - Thomson (1997: 610)

  421. Toninia caeruleonigricans (Lightf.) Th. Fr. - Thomson (1997: 614)

  422. Trapelia coarctata (Turner ex Sm. & Sow.) M. Choisy - Thomson (1997: 621)

  423. Trapeliopsis granulosa (Hoffm.) Lumbsch - Thomson (1997: 624)
  424. Trapeliopsis viridescens (Schrad.) Coppins & James- Thomson (1997: 625)

  425. Tremolecia atrata (Ach.) Hertel - Thomson (1997: 627)

  426. Tuckermannopsis americana (Sprengel) Hale - Thomson (1984: 81 as Cetraria halei)
  427. Tuckermannopsis sepincola (Ehrh.) Hale - Thomson (1984: 94 as Cetraria sepincola)

  428. Umbilicaria arctica (Ach.) Nyl. - Thomson (1984: 444)
  429. Umbilicaria cylindrica (L.) Delise - Thomson (1984: 448)
  430. Umbilicaria deusta (L.) Baumg. - Thomson (1984: 449)
  431. Umbilicaria havaasii Llano - Thomson (1984: 451)
  432. Umbilicaria hyperborea (Ach.) Hoffm. var. hyperborea - Thomson (1984: 453)
  433. Umbilicaria lyngei Schol. - Thomson (1984: 28 as Agyrophora lyngei)
  434. Umbilicaria mammulata (Ach.) Tuck. - Thomson (1984: 454)
  435. Umbilicaria muehlenbergii (Ach.) Tuck. - Thomson (1984: 26 as Actinogyra muehlenbergii)
  436. Umbilicaria polaris (Schol.) Zahlbr. - Thomson (1984: 289 as Omphalodiscus krascheninnikovii)
  437. Umbilicaria polyphylla (L.) Baumg. - Thomson (1984: 457)
  438. Umbilicaria proboscidea (L.) Schrad. - Thomson (1984: 458)
  439. Umbilicaria torrefacta (Lightf.) Schrad. - Thomson (1984: 459)
  440. Umbilicaria vellea (L.) Ach. - Thomson (1984: 460)
  441. Umbilicaria virginis Schaer. - Thomson (1984: 290 as Omphalodiscus virginis)

  442. Usnea cavernosa Tuck. - Thomson (1984: 463)
  443. Usnea dasopoga (Ach.) Nyl. - Thomson (1984: 465)
  444. Usnea hirta (L.) F. H. Wigg. - Thomson (1984: 467)
  445. Usnea subfloridana Stirt. - Thomson (1984: 469)
  446. Usnea substerilis Motyka - Thomson (1984: 470)

  447. Varicellaria rhodocarpa (Körb.) Th. Fr. - Thomson (1997: 629)

  448. Verrucaria muralis Ach. - Thomson (1997: 641)
  449. Verrucaria nigrescens Pers. - Thomson (1997: 642)
  450. Verrucaria rupestris Schrad. - Thomson (1997: 643)

  451. Vestergrenopsis isidiata (Degel.) Dahl - Thomson (1984: 473)

  452. Vulpicida pinastri (Scop.) J.-E. Mattsson & M. J. Lai - Thomson (1984: 93 as Cetraria pinastri)
  453. Vulpicida tilesii (Ach.) J.-E. Mattsson & M. J. Lai - Thomson (1984: 95 as Cetraria tilesii)

  454. Xanthomendoza fallax Søchting, Kärnefelt & S. Y. Kondr. - Thomson (1984: 486 as Xanthoria fallax)

  455. Xanthoparmelia viriduloumbrina (Gyeln.) Lendemer - Thomson (1984: 480 erroneously as Xanthoparmelia taractica)

  456. Xylographa parallela (Ach.) Fr. - Thomson (1997: 646 as Xylographa abietina)
  457. Xylographa vitiligo (Ach.) J. R. Laundon - Thomson (1997: 647)

  458. Xylopsora friesii (Ach. in Lilj.) Bendiksby & Timdal - Thomson (1997: 247 as Hypocenomyce friesii)