Checklist of lichens of North Dakota (USA)
Version 31 December 2018

 

  1. Acarospora americana H. Magn. - Wetmore (1985: 243), Wetmore (1985: 243 as Acarospora cinereoalba)
  2. Acarospora fuscata (Schrad.) Arnold - Wetmore (1985: 243)
  3. Acarospora moenium (Vain.) Räsänen - Lendemer (2008: 98 as Aspicilia moenium)
  4. Acarospora nodulosa (Dufour) Hue var. nodulosa - Wetmore (1985: 243 as Acarospora reagens)
  5. Acarospora schleicheri (Ach.) A. Massal. - Wetmore (1985: 243)

  6. Amandinea punctata (Hoffm.) Coppins & Scheid. - Wetmore (1985: 243 as Buellia punctata), Thomson (1997: 138 as Buellia punctata)

  7. Arthonia lapidicola (Taylor) Branth & Rostr. - Wetmore (1985: 243)

  8. Arthrosporum populorum A. Massal. - Wetmore (1985: 243 as Bacidia populorum), Thomson (1997: 106 as Bacidia populorum)

  9. Aspicilia cinerea (L.) Körb. - Wetmore (1985: 243), Lendemer (2008: 98)
  10. Aspicilia reptans (Looman) Wetmore - Wetmore (1985: 243)
  11. Aspicilia subradians (Nyl.) Hue - Thomson (1997: 94)

  12. Athallia holocarpa (Hoffm.) Arup, Frödén & Søchting - Wetmore (1985: 244 as Caloplaca holocarpa), Thomson (1997: 164 as Caloplaca holocarpa)

  13. Bacidia circumspecta (Norrl. & Nyl.) Malme - Wetmore (1985: 243 as Bacidia bacillifera)
  14. Bacidia bagliettoana (A. Massal. & De Not.) Jatta - Wetmore (1985: 243)
  15. Bacidia herbarum (Hepp ex Stizenb.) Arnold - Thomson (1997: 103)

  16. Bilimbia sabuletorum (Schreb.) Arnold - Wetmore (1985: 243 as Bacidia sabuletorum), Thomson (1997: 422 as Mycobilimbia sabuletorum)

  17. Blastenia furfuracea (H. Magn.) Arup, Søchting & Frödén - Wetmore (2004: 289 as Caloplaca furfuracea)

  18. Bryoria capillaris (Ach.) Brodo & D. Hawksw. - Wetmore (1985: 243)
  19. Bryoria fuscescens (Gyeln.) Brodo & D. Hawksw. - Wetmore (1985: 243)

  20. Buellia elegans Poelt - Wetmore (1985: 243), Thomson (1997: 130)
  21. Buellia erubescens Arnold - Disrud & Trana (1973: 29 as Buellia stillingiana), Wetmore (1985: 243 as Buellia zahlbruckneri)
  22. Buellia dispersa A. Massal. - Wetmore (1985: 243 as Buellia retrovertens)
  23. Buellia vilis Th. Fr. - Thomson (1997: 141)

  24. Calicium notarisii (Tul.) M. Prieto & Wedin - Wetmore (1985: 245 as Cyphelium notarisii)

  25. Calogaya decipiens (Arnold) Arup, Frödén & Søchting - Wetmore (1985: 243 as Caloplaca decipiens)
  26. Calogaya lobulata (Flörke) Arup, Frödén & Søchting - Wetmore (1985: 244 as Caloplaca lobulata)

  27. Caloplaca atroalba (Tuck.) Zahlbr. - Wetmore (1985: 243)
  28. Caloplaca cerina (Ehrh. ex Hedwig) Th. Fr. - Disrud & Trana (1973: 29), Wetmore (1985: 243), Thomson (1997: 154), Thomson (1997: 172 as Caloplaca stillicidiorum)
  29. Caloplaca dakotensis Wetmore - Wetmore (1994: 823 Type in MIN)
  30. Caloplaca fraudans (Th. Fr.) H. Olivier - Thomson (1997: 162)
  31. Caloplaca microphyllina (Tuck.) Hasse - Wetmore (1985: 244)
  32. Caloplaca obscurella (J. Lahm) Th. Fr. - Wetmore (1985: 244 as Caloplaca sarcopisioides)
  33. Caloplaca pratensis Wetmore - Wetmore (2009: 382 Type in MIN)
  34. Caloplaca saxicola (Hoffm.) Nordin - Wetmore (1985: 244), Thomson (1997: 169)
  35. Caloplaca ulmorum (Fink) Fink - Wetmore (1985: 244)
  36. Candelaria concolor (Dicks.) Arnold - Disrud & Trana (1973: 29), Wetmore (1985: 244)

  37. Candelariella antennaria Räsänen - Lendemer (2008: 98)
  38. Candelariella aurella (Hoffm.) Zahlbr. - Wetmore (1985: 244), Thomson (1997: 182)
  39. Candelariella efflorescens R. C. Harris & W. R. Buck - Wetmore (1985: 244)
  40. Candelariella subdeflexa (Nyl.) Lettau - Wetmore (1985: 244)
  41. Candelariella vitellina (Hoffm.) Müll. Arg. - Wetmore (1985: 244)
  42. Candelariella xanthostigma (Pers. ex Ach.) Lettau - Wetmore (1985: 244)

  43. Catillaria nigroclavata (Nyl.) J. Steiner - Wetmore (1985: 244)

  44. Catinaria atropurpurea (Schaer.) Vezda & Poelt - Thomson (1997: 201)

  45. Circinaria caesiocinerea (Nyl. ex Malbr.) A. Nordin, Savic & Tibell - Wetmore (1985: 243 as Aspicilia caesiocinerea)
  46. Circinaria contorta (Hoffm.) A. Nordin, Savic & Tibell - Wetmore (1985: 243 as Aspicilia contorta)
  47. Circinaria hispida (Mereschk.) A. Nordin, Savic & Tibell - Wetmore (1985: 243 as Agrestia hispida)

  48. Cladonia acuminata (Ach.) Norrl. - Wetmore (1985: 244)
  49. Cladonia bacillaris (Ach.) Genth - Wetmore (1985: 244)
  50. Cladonia chlorophaea (Flörke ex Sommerf.) Spreng. - Disrud & Trana (1973: 29), Thomson (1984: 119), Wetmore (1985: 244)
  51. Cladonia coniocraea (Flörke) Spreng. - Disrud & Trana (1973: 29), Wetmore (1985: 244)
  52. Cladonia cornuta (L.) Hoffm. subsp. cornuta - Thomson (1984: 124), Wetmore (1985: 244)
  53. Cladonia crispata (Ach.) Flot. var. crispata - Thomson (1984: 125)
  54. Cladonia cristatella Tuck. - Wetmore (1985: 244)
  55. Cladonia decorticata (Flörke) Spreng. - Wetmore (1985: 244)
  56. Cladonia fimbriata (L.) Fr. - Thomson (1984: 133), Wetmore (1985: 244)
  57. Cladonia glauca Flörke - Thomson (1984: 135)
  58. Cladonia gracilis (L.) Willd. subsp. gracilis - Wetmore (1985: 244)
  59. Cladonia gracilis (L.) Willd. subsp. turbinata (Ach.) Ahti - Thomson (1984: 136)
  60. Cladonia humilis (With.) J. R. Laundon - Wetmore (1985: 244)
  61. Cladonia mitis Sandst. - Thomson (1984: 148), Wetmore (1985: 244 as Cladina mitis)
  62. Cladonia pocillum (Ach.) O. J. Rich. - Thomson (1984: 156)
  63. Cladonia pyxidata (L.) Hoffm. - Disrud & Trana (1973: 29), Thomson (1984: 158), Wetmore (1985: 244)
  64. Cladonia rangiferina (L.) Weber ex F. H. Wigg. - Wetmore (1985: 244 as Cladina rangiferina)
  65. Cladonia robbinsii A. Evans - Wetmore (1985: 244)
  66. Cladonia subulata (L.) Weber ex F. H. Wigg. - Wetmore (1985: 244)
  67. Cladonia symphycarpa (Ach.) Fr. - Wetmore (1985: 244)

  68. Collema furfuraceum (Schaer.) Du Rietz - Wetmore (1985: 245)

  69. Dermatocarpon americanum Vain. - Heiðmarsson (2003: 466)
  70. Dermatocarpon miniatum (L.) W. Mann - Wetmore (1985: 245)
  71. Dermatocarpon moulinsii (Mont.) Zahlbr. - Wetmore (1985: 245)

  72. Dimelaena oreina (Ach.) Norman - Sheard (1974: xx), Wetmore (1985: 245), Thomson (1997: 216)

  73. Diploschistes actinostomus (Pers.) Zahlbr. - Wetmore (1985: 245)
  74. Diploschistes muscorum (Scop.) R. Sant. - Thomson (1997: 218)
  75. Diploschistes scruposus (Schreb.) Norman - Wetmore (1985: 245), Thomson (1997: 218)

  76. Diplotomma venustum (Körb.) Körb. - Wetmore (1985: 243 as Buellia venusta)

  77. Enchylium coccophorum (Tuck.) Otálora, P. M. Jørg. & Wedin - Wetmore (1985: 244 as Collema coccophorum)
  78. Enchylium conglomeratum Hoffm. - Wetmore (1985: 245 as Collema conglomeratum)
  79. Enchylium tenax (Sw.) Gray - Thomson (1984: 191 as Collema tenax), Wetmore (1985: 245 as Collema tenax)

  80. Endocarpon pusillum Hedw. - Wetmore (1985: 245)

  81. Epiphloea byssina (Hoffm.) Henssen & P. M. Jørg. - Thomson (1984: 256 as Leptogium byssinum)

  82. Evernia mesomorpha Nyl. - Disrud & Trana (1973: 29), Thomson (1984: 229), Wetmore (1985: 245)

  83. Flavoparmelia caperata (L.) Hale - Wetmore (1985: 246 as Parmelia caperata)

  84. Flavoplaca citrina (Hoffm.) Arup, Frödén & Søchting - Wetmore (1985: 243 as Caloplaca citrina)

  85. Flavopunctelia flaventior (Stirt.) Hale - Disrud & Trana (1973: 29 as Parmelia flaventior), Wetmore (1985: 246 as Parmelia flaventior)
  86. Flavopunctelia soredica (Nyl.) Hale - Disrud & Trana (1973: 30 as Parmelia ulophyllodes), Wetmore (1985: 246 as Parmelia soredica)

  87. Gyalolechia bracteata (Hoffm.) A. Massal. subsp. bracteata - Wetmore (1985: 245 as Fulgensia bracteata)
  88. Gyalolechia flavorubescens (Huds.) Søchting, Frödén & Arup - Wetmore (1985: 243 as Caloplaca flavorubescens)
  89. Gyalolechia fulgens (Sw.) Søchting, Frödén & Arup - Wetmore (1985: 245 as Fulgensia fulgens), Thomson (1997: 229 as Fulgensia fulgens)
  90. Gyalolechia xanthostigmoidea (Räsänen) Søchting, Frödén & Arup - Thomson (1997: 158 as Caloplaca discolor)

  91. Heppia lutosa (Ach.) Nyl. - Wetmore (1985: 245)

  92. Hyperphyscia adglutinata (Flörke) H. Mayrhofer & Poelt - Wetmore (1985: 245)

  93. Hypogymnia physodes (L.) Nyl. - Wetmore (1985: 245)
  94. Hypogymnia tubulosa (Schaer.) Hav. - Wetmore (1985: 245)

  95. Lecania erysibe (Ach.) Mudd - Wetmore (1985: 245)
  96. Lecania fuscella (Schaer.) A. Massal. - Wetmore (1985: 245)

  97. Lecanora albellula (Nyl.) Th. Fr. - Wetmore (1985: 245 as Lecanora piniperda), Thomson (1997: 299 as Lecanora piniperda)
  98. Lecanora allophana (Ach.) Nyl. - Thomson (1997: 266)
  99. Lecanora argopholis (Ach.) Ach. - Thomson (1997: 267)
  100. Lecanora chlarotera Nyl. - Wetmore (1985: 245), Thomson (1997: 273)
  101. Lecanora frustulosa (Dicks.) Ach. - Wetmore (1985: 245)
  102. Lecanora garovaglii (Körb.) Zahlbr. subsp. garovaglii - Wetmore (1985: 245)
  103. Lecanora hagenii (Ach.) Ach. - Wetmore (1985: 245)
  104. Lecanora muralis (Schreb.) Rabenh. - Wetmore (1985: 245), Thomson (1997: 295)
  105. Lecanora rupicola (L.) Zahlbr. - Wetmore (1985: 245), Thomson (1997: 303)
  106. Lecanora saligna (Schrad.) Zahlbr. - Wetmore (1985: 245)

  107. Lecidea atrobrunnea (Ram. ex Lam. & DC.) Schaer. subsp. atrobrunnea - Wetmore (1985: 245)
  108. Lecidea auriculata Th. Fr. subsp. auriculata - Thomson (1997: 329)
  109. Lecidea plana J. Lahm ex Körb. - Wetmore (1985: 245)
  110. Lecidea tessellata (Ach.) Flörke - Wetmore (1985: 245)

  111. Lecidella carpathica Körb. - Wetmore (1985: 245)
  112. Lecidella euphorea (Flörke) Kremp. - Wetmore (1985: 245), Thomson (1997: 397), Lendemer (2008: 97)
  113. Lecidella patavina (A. Massal.) Heufl. - Wetmore (1985: 245 as Lecidella inamoena), Wetmore (1985: 245 as Lecidella spitsbergensis), Thomson (1997: 401 as Lecidella spitsbergensis)
  114. Lecidella stigmatea (Ach.) Hertel & Leuckert - Wetmore (1985: 246)

  115. Lepraria lobificans Nyl. - Wetmore (1985: 246 as Lepraria finkii)

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

  117. Lethagrium fuscovirens (With.) Otálora, P. M. Jørg. & Wedin - Wetmore (1985: 245 as Collema fuscovirens)

  118. Lichinella nigritella (Lettau) P. P. Moreno & Egea - Wetmore (1985: 247 as Thyrea nigritella)

  119. Lobothallia alphoplaca (Wahlenb. in Ach.) Hafellner - Wetmore (1985: 243 as Aspicilia alphoplaca), Thomson (1997: 59 as Aspicilia alphoplaca)
  120. Lobothallia melanaspis (Ach.) Hafellner - Thomson (1997: 82 as Aspicilia melanaspis)

  121. Megaspora verrucosa (Ach.) A. Massal. - Wetmore (1985: 246 as Pachyspora mutabilis), Thomson (1997: 443 as Pachyospora verrucosa)

  122. Melanohalea exasperatula (Nyl.) O. Blanco et al. - Disrud & Trana (1973: 29 as Parmelia exasperatula)
  123. Melanohalea septentrionalis (Lynge) O. Blanco et al. - Disrud & Trana (1973: 29), Thomson (1984: 311 as Parmelia septentrionalis)
  124. Melanohalea subolivacea (Nyl. in Hasse) O. Blanco et al. - Ahti (1966: xx as Parmelia subolivacea), Wetmore (1985: 246 as Parmelia subolivacea)

  125. Melanelixia albertana (Ahti) O. Blanco et al. - Disrud & Trana (1973: 29 as Parmelia albertana), Wetmore (1985: 246 as Parmelia albertana)
  126. Melanelixia subargentifera (Nyl.) O. Blanco et al. - Disrud & Trana (1973: 29 as Parmelia subargentifera), Wetmore (1985: 246 as Parmelia subargentifera)
  127. Melanelixia subaurifera (Nyl.) O. Blanco et al. - Thomson (1984: 316 as Parmelia subaurifera), Wetmore (1985: 246 as Parmelia subaurifera)

  128. Micarea misella (Nyl.) Hedl. - Wetmore (1985: 246 as Micarea globularis)

  129. Montanelia sorediata (Ach.) Divakar, A. Crespo, Wedin & Essl. - Wetmore (1985: 246 as Parmelia sorediosa)
  130. Montanelia tominii (Oxner) Divakar, A. Crespo, Wedin & Essl. - Wetmore (1985: 246 as Parmelia substygia)

  131. Mycobilimbia berengeriana (A. Massal.) Hafellner & V. Wirth - Wetmore (1985: 245 as Lecidea berengeriana)
  132. Mycobilimbia tetramera (De Not.) Vitik., Ahti, Kuusinen, Lommi & T. Ulvinen ex Hafellner & Türk - Thomson (1997: 422 as Mycobilimbia obscurata)

  133. Myelochroa galbina (Ach.) Elix & Hale - Disrud & Trana (1973: 29 as Parmelia galbina)

  134. Myriolecis dispersa (Pers.) Sliwa, Zhao Xin & Lumbsch - Wetmore (1985: 245 as Lecanora dispersa), Thomson (1997: 278 as Lecanora dispersa)

  135. Ochrolechia arborea (Kreyer) Almb. - Wetmore (1985: 246)
  136. Ochrolechia upsaliensis (L.) A. Massal. - Thomson (1997: 436)

  137. Parmelia sulcata Taylor - Disrud & Trana (1973: 29), Thomson (1984: 318), Wetmore (1985: 246)

  138. Peccania subnigra (B. de Lesd.) Wetmore - Wetmore (1985: 246)

  139. Peltigera canina (L.) Willd. - Disrud & Trana (1973: 30), Wetmore (1985: 246)
  140. Peltigera neckeri Hepp ex Müll. Arg. - Wetmore (1985: 246)
  141. Peltigera evansiana Gyeln. - Disrud & Trana (1973: 30)
  142. Peltigera praetextata (Flörke ex Sommerf.) Zopf - Wetmore (1985: 246)
  143. Peltigera rufescens (Weiss) Humb. - Thomson (1984: 333 as Peltigera canina var. rufescens), Wetmore (1985: 246)

  144. Peltula bolanderi (Tuck.) Wetmore - Wetmore (1985: 246)
  145. Peltula patellata (Bagl.) Swinscow & Krog - Wetmore (1985: 246 as Peltula polyspora)

  146. Pertusaria saximontana Wetmore - Wetmore (1985: 246)

  147. Phaeophyscia constipata (Norrl. & Nyl.) Moberg - Wetmore (1985: 246)
  148. Phaeophyscia endococcina (Körb.) Moberg - Thomson (1984: 348)
  149. Phaeophyscia hirsuta (Meresch.) Essl. - Wetmore (1985: 246 as Phaeophyscia cernohorskyi), Wetmore (1985: 246)
  150. Phaeophyscia kairamoi (Vain.) Moberg - Wetmore (1985: 246)
  151. Phaeophyscia nigricans (Flörke) Moberg - Wetmore (1985: 246)
  152. Phaeophyscia orbicularis (Neck.) Moberg - Disrud & Trana (1973: 30 as Physcia orbicularis), Wetmore (1985: 246)
  153. Phaeophyscia sciastra (Ach.) Moberg - Thomson (1984: 349)

  154. Phaeorrhiza sareptana (Tomin) H. Mayrh. & Poelt. - Wetmore (1985: 246), Thomson (1997: 468)

  155. Physcia adscendens (Th. Fr.) Oliv. - Disrud & Trana (1973: 30), Wetmore (1985: 247)
  156. Physcia aipolia (Humb.) Fürnr. - Disrud & Trana (1973: 30), Thomson (1984: 353), Wetmore (1985: 247)
  157. Physcia biziana (A. Massal.) Zahlbr. - Wetmore (1985: 247)
  158. Physcia caesia (Hoffm.) Fürnr. - Thomson (1984: 354), Wetmore (1985: 247)
  159. Physcia dakotensis Essl. - Esslinger (2004: 302 Type in DUKE)
  160. Physcia dimidiata (Arnold) Nyl. - Esslinger (1979: 211 First record for North America), Wetmore (1985: 247)
  161. Physcia dubia (Hoffm.) Lettau - Thomson (1984: 355), Wetmore (1985: 247)
  162. Physcia phaea (Tuck.) J. W. Thomson - Thomson (1984: 356)
  163. Physcia stellaris (L.) Nyl. - Disrud & Trana (1973: 30), Wetmore (1985: 247)
  164. Physcia subtilis Degel. - Wetmore (1985: 247)

  165. Physciella chloantha (Ach.) Essl. - Wetmore (1985: 246 as Phaeophyscia chloantha)
  166. Physciella melanchra (Hue) Essl. - Wetmore (1985: 246 as Phaeophyscia melanchra)

  167. Physconia detersa (Nyl.) Poelt - Thomson (1984: 359), Wetmore (1985: 247)
  168. Physconia muscigena (Ach.) Poelt - Thomson (1984: 360), Wetmore (1985: 247)

  169. Placidium arboreum (Schwein. ex E. Michener) Lendemer - Wetmore (1985: 245 as Dermatocarpon tuckermanii)
  170. Placidium lachneum (Ach.) B. de Lesd. - Wetmore (1985: 245 as Dermatocarpon lachneum)
  171. Placidium squamulosum (Ach.) Breuss - Thomson (1984: 215 as Dermatocarpon hepaticum)

  172. Placynthiella icmalea (Ach.) Coppins & P. James - Wetmore (1985: 247), Lendemer (2008: 98)

  173. Placynthium nigrum (Huds.) Gray - Wetmore (1985: 247)

  174. Polycauliona polycarpa (Hoffm.) Frödén, Arup & Søchting - Disrud & Trana (1973: 30 as Xanthoria polycarpa), Thomson (1984: 487 as Xanthoria polycarpa), Wetmore (1985: 248 as Xanthoria polycarpa)

  175. Polysporina simplex (Borrer ex Hook.) Vezda - Wetmore (1985: 247 as Sarcogyne simplex)

  176. Protoblastenia rupestris (Scop.) J. Steiner - Wetmore (1985: 247), Thomson (1997: 503)

  177. Psora decipiens (Hedw.) Hoffm. - Wetmore (1985: 245 as Lecidea decipiens), Thomson (1997: 507)
  178. Psora globifera (Ach.) A. Massal. - Wetmore (1985: 245 as Lecidea globifera), Thomson (1997: 508)
  179. Psora luridella (Tuck.) Fink - Wetmore (1985: 245 as Lecidea luridella)
  180. Psora russellii (Tuck.) A. Schneid. - Wetmore (1985: 245 as Lecidea russellii)

  181. Punctelia bolliana (Müll. Arg.) Krog - Disrud & Trana (1973: 29 as Parmelia bolliana)

  182. Pycnora xanthococca (Sommerf.) Hafellner - Wetmore (1985: 245 as Lecidea xanthococca)

  183. Ramalina fastigiata (Pers.) Ach. - Disrud & Trana (1973: 30)
  184. Ramalina sinensis Jatta - Wetmore (1985: 247)
  185. Ramalina unifolia J. W. Thomson - Thomson (1990: 341)

  186. Rhizocarpon disporum (Nägeli ex Hepp) Müll. Arg. - Wetmore (1985: 247)
  187. Rhizocarpon geminatum Körb. - Thomson (1997: 537)

  188. Rhizoplaca chrysoleuca (Sm.) Zopf - Wetmore (1985: 247), Thomson (1997: 554)
  189. Rhizoplaca melanophthalma (Ram.) Leuckert & Poelt - Wetmore (1985: 247)

  190. Rinodina bischoffii (Hepp) A. Massal. - Wetmore (1985: 247)
  191. Rinodina calcigena (Th. Fr.) Lynge - Wetmore (1985: 247), Thomson (1997: 562)
  192. Rinodina colobina (Ach.) Th. Fr. - Wetmore (1985: 247)
  193. Rinodina lobulata H. Mayrhofer & Sheard - Wetmore (1985: 247), Sheard & Mayrhofer (2002: 664 Type in WIS), Sheard (2010: 125)
  194. Rinodina terrestris Tomin - Wetmore (1985: 247 as Rinodina mucronatula)
  195. Rinodina pyrina (Ach.) Arnold - Wetmore (1985: 247)
  196. Rinodina riparia Sheard - Wetmore (1985: 247)
  197. Rinodina zwackhiana (Kremp.) Körb. - Wetmore (1985: 247)

  198. Rusavskia elegans (Link) S. Y. Kondr. & Kärnefelt - Thomson (1984: 484 as Xanthoria elegans), Wetmore (1985: 247 as Xanthoria elegans)
  199. Rusavskia sorediata (Vain.) S. Y. Kondr. & Kärnefelt - Thomson (1984: 487 as Xanthoria sorediata)

  200. Sarcogyne clavus (DC.) Kremp. - Wetmore (1985: 247)
  201. Sarcogyne dakotensis H. Magn. - Magnusson (1935: 139 Type), Knudsen & Standley (2007: 291)
  202. Sarcogyne regularis Körb. - Wetmore (1985: 247)

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

  204. Sclerophora pallida (Pers.) Y. J. Yao & Spooner - Wetmore (1985: 245 as Coniocybe pallida)

  205. Scytinium subtile (Schrad.) Otálora, P. M. Jørg. & Wedin - Wetmore (1985: 246 as Leptogium minutissimum)
  206. Scytinium tenuissimum (Dicks.) Otálora, P. M. Jørg. & Wedin - Wetmore (1985: 246 as Leptogium tenuissimum)

  207. Solitaria chrysophthalma (Degel.) Arup, Søchting & Frödén - Wetmore (1985: 243 as Caloplaca chrysophthalma)

  208. Squamarina lentigera (G. Web.) Poelt - Wetmore (1985: 247)

  209. Squamulea squamosa (B. de Lesd.) Arup, Søchting & Frödén - Wetmore (1985: 244 as Caloplaca squamosa)

  210. Staurothele areolata (Ach.) Lettau - Thomson (1997: 592)
  211. Staurothele drummondii (Tuck.) Tuck. - Wetmore (1985: 247 as Staurothele clopima), Thomson (1997: 595)
  212. Staurothele monicae (Zahlbr.) Wetmore - Wetmore (1985: 247)
  213. Staurothele elenkinii Oxner - Wetmore (1985: 247 erroneously as Staurothele rufa)

  214. Strangospora moriformis (Ach.) Stein - Lendemer (2008: 97)

  215. Toninia tristis (Th. Fr.) Th. Fr. subsp. tristis - Wetmore (1985: 247)

  216. Toniniopsis aromatica (Sm.) Kistenich, Timdal, Bendiksby & S. Ekman - Thomson (1997: 612 as Toninia aromatica)

  217. Trapeliopsis flexuosa (Fr.) Coppins & P. James - Lendemer (2008: 98)

  218. Trapeliopsis granulosa (Hoffm.) Lumbsch - Wetmore (1985: 245 as Lecidea granulosa), Thomson (1997: 624)

  219. Tuckermanopsis americana (Spreng.) Hale - Wetmore (1985: 244 as Cetraria halei)

  220. Umbilicaria muehlenbergii (Ach.) Tuck. - Thomson (1984: 26 as Actinogyra muhlenbergii), Wetmore (1985: 247)

  221. Usnea fulvoreagens (Räsänen) Räsänen - Wetmore (1985: 247)
  222. Usnea hirta (L.) Weber ex F. H. Wigg. - Thomson (1984: 466), Wetmore (1985: 247)
  223. Usnea subfloridana Stirt. - Disrud & Trana (1973: 30), Wetmore (1985: 247)

  224. Verrucaria inficiens Breuss - Wetmore (1985: 245 as Dermatocarpon plumbeum)
  225. Verrucaria muralis Ach. - Wetmore (1985: 247)
  226. Verrucaria glaucovirens Grummann - Wetmore (1985: 247 as Verrucaria virens)

  227. Vulpicida pinastri (Scop.) J.-E. Mattsson & M. J. Lai - Wetmore (1985: 244 as Cetraria pinastri)

  228. Xanthocarpia feracissima (H. Magn.) Frödén, Arup & Søchting - Wetmore (1985: 243 as Caloplaca feracissima)
  229. Xanthocarpia tominii (Savicz) Frödén, Arup & Søchting - Wetmore (1985: 244 as Caloplaca tominii), Thomson (1997: 175 as Caloplaca tominii)

  230. Xanthomendoza fallax (Hepp ex Arnold) Søchting, Kärnefelt & S. Y. Kondr. - Disrud & Trana (1973: 30 as Xanthoria fallax), Thomson (1984: 486 as Xanthoria fallax), Wetmore (1985: 248 as Xanthoria fallax)
  231. Xanthomendoza trachyphylla (Tuck.) Frödén, Arup & Søchting - Wetmore (1985: 244 as Caloplaca trachyphylla), Thomson (1997: 177 as Caloplaca trachyphylla)

  232. Xanthoparmelia chlorochroa (Tuck.) Hale - Thomson (1984: 477), Wetmore (1985: 246 as Parmelia chlorochroa)
  233. Xanthoparmelia conspersa (Ehrh. ex Ach.) Hale - Wetmore (1985: 246 as Parmelia conspersa)
  234. Xanthoparmelia lineola (E. C. Berry) Hale - Wetmore (1985: 246 as Parmelia lineola)
  235. Xanthoparmelia mexicana (Gyeln.) Hale - Wetmore (1985: 246 as Parmelia mexicana)
  236. Xanthoparmelia plittii (Gyeln.) Hale - Wetmore (1985: 246 as Parmelia plittii)

  237. Xylographa parallela (Ach.) Fr. - Wetmore (1985: 248 as Xylographa abietina), Thomson (1997: 646 as Xylographa abietina)