Checklist of lichens of Maine (USA)
Version 31 December 2018

 

  1. Ahtiana aurescens (Tuck.) A. Thell & Randlane - Degelius (1940), Hinds & Hinds (1998: 349)

  2. Alectoria ochroleuca (Hoffm.) A. Massal. - Eckfeldt (1894), Hinds & Hinds (1998: 349)
  3. Alectoria sarmentosa (Ach.) Ach. - Howe (1911a), Brodo & Hawksworth (1977), Hinds & Hinds (1998: 349)

  4. Allocetraria oakesiana (Tuck.) Randlane & A. Thell - Eckfeldt (1894), Hale (1956), Hinds & Hinds (1998: 349)

  5. Anaptychia crinalis (Schaer.) Vezda - Hinds & Hinds (1998: 349 erroneously as Anaptychia setifera)
  6. Anaptychia palmulata (Michx.) Vain. - Degelius (1940), Hinds & Hinds (1998: 349)

  7. Anzia colpodes (Ach.) Stizenb. - Harvey & Eckfeldt (1894), Hale (1955a), Hinds & Hinds (1998: 349)

  8. Arctoparmelia centrifuga (L.) Hale - Tuckerman (1882), Hinds & Hinds (1998: 349)
  9. Arctoparmelia incurva (Pers.) Hale - Tuckerman (1882), Hinds & Hinds (1998: 349)

  10. Baeomyces carneus Flörke - Thomson (1967: ), Hinds & Hinds (1998: 349)
  11. Baeomyces rufus (Hudson) Rebent. - Eckfeldt (1894), Thomson (1967), Hinds & Hinds (1998: 349)

  12. Biatora anthracophila (Nyl.) Hafellner - Sullivan (1996), Hinds & Hinds (1998: 349)

  13. Bryocaulon divergens (Ach.) Kärnefelt - Degelius (1940: ), Hinds & Hinds (1998: 349)

  14. Bryoria capillaris (Ach.) Brodo & D. Hawksw. - Brodo & Hawksworth (1977), Hinds & Hinds (1998: 349)
  15. Bryoria friabilis Brodo & D. Hawksw. - Brodo & Hawksworth (1977), Hinds & Hinds (1998: 349)
  16. Bryoria furcellata (Fr.) Brodo & D. Hawksw. - Harvey & Eckfeldt (1894), Brodo & Hawksworth (1977), Hinds & Hinds (1998: 349)
  17. Bryoria fuscescens (Gyelnik) Brodo & D. Hawksw. - Brodo & Hawksworth (1977), Hinds & Hinds (1998: 349)
  18. Bryoria implexa (Hoffm.) Brodo & D. Hawksw. - Merrill (xx), Brodo & Hawksworth (1977: xx), Hinds & Hinds (1998: 349)
  19. Bryoria lanestris (Ach.) Brodo & D. Hawksw. - Brodo & Hawksworth (1977: xx), Hinds & Hinds (1998: 349)
  20. Bryoria nadvornikiana (Gyelnik) Brodo & D. Hawksw. - Degelius (1940: ), Brodo & Hawksworth (1977: xx), Hinds & Hinds (1998: 349)
  21. Bryoria salazinica Brodo & D. Hawksw. - Brodo & Hawksworth (1977: xx), Hinds & Hinds (1998: 349)
  22. Bryoria trichodes (Michx.) Brodo & D. Hawksw. - Brodo & Hawksworth (1977: xx), Hinds & Hinds (1998: 349)

  23. Candelaria concolor (Dicks.) Arnold - Parlin (1923), Hinds & Hinds (1998: 349)
  24. Candelaria fibrosa (Fr.) Müll. Arg. - Parlin (1939), Hinds & Hinds (1998: 350)

  25. Cetraria aculeata (Schreb.) Fr. - Eckfeldt (1894), Kärnefelt (1986), Hinds & Hinds (1998: 350)
  26. Cetraria arenaria Kärnefelt - Kärnefelt (1979: ), Hinds & Hinds (1998: 350)
  27. Cetraria islandica (L.) Ach. - Harvey (1894: ), Hinds & Hinds (1998: 350)
  28. Cetraria laevigata Rass. - Kärnefelt (1979: xx), Hinds & Hinds (1998: 350)
  29. Cetraria muricata (Ach.) Eckfeldt - Kärnefelt (1986: xx), Hinds & Hinds (1998: 350)

  30. Cetrariella delisei (Bory ex Schaer.) Kärnefelt & A. Thell - Eckfeldt (1894: xx), Kärnefelt (1979: xx), Hinds & Hinds (1998: 350)

  31. Cetrelia chicitae (W. L. Culb.) W. L. Culb. & C. F. Culb. - Culberson (1965: ), Hinds & Hinds (1998: 350)
  32. Cetrelia olivetorum (Nyl.) W. L. Culb. & C. F. Culb. - Culberson (1962: ), Culberson & Culberson (1968: xx), Hinds & Hinds (1998: 350)

  33. Chrismofulvea pinastri (Erichsen) Marbach - Erichsen (1940: 330 Type in Hamburg, Germany HBG), Marbach (2000: 156)

  34. Cladina subtenuis (Abbayes) Hale & Culb. - Degelius (1940), Ahti (1961), Hinds & Hinds (1998: 350)
  35. Cladina terrae-novae (Ahti) Hale & Culb. - Ahti (1961: most likely), Wetmore (1984), Hinds & Hinds (1998: 350)

  36. Cladonia acuminata (Ach.) Norrlin - Parlin (1935: x), Thomson (1968), Hinds & Hinds (1998: 350)
  37. Cladonia amaurocraea (Flörke) Schaer. - Harvey (1894), Hinds & Hinds (1998: 350)
  38. Cladonia apodocarpa Robbins - Parlin (1935), Hinds & Hinds (1998: 350)
  39. Cladonia arbuscula (Wallr.) xxx - Parlin (1935: x as Cladina arbuscula), Ahti (1961: x as Cladina arbuscula), Hinds & Hinds (1998: 350 as Cladina arbuscula)
  40. Cladonia atlantica A. Evans - Wetmore (1984), Hinds & Hinds (1998: 350)
  41. Cladonia borealis S. Stenroos - Hinds & Hinds (1998: 350 First record)
  42. Cladonia boryi Tuck. - Harvey & Eckfeldt (1894: x), Ahti (1973), Hinds & Hinds (1998: 350)
  43. Cladonia botrytes (K. Hagen) Willd. - Degelius (1940), Hinds & Hinds (1998: 350)
  44. Cladonia brevis (Sandst.) Sandst. - Evans (1932), Thomson (1968), Hinds & Hinds (1998: 350)
  45. Cladonia caespiticia (Pers.) Flörke - Eckfeldt (1894), Hinds & Hinds (1998: 351)
  46. Cladonia cariosa (Ach.) Sprengel - Fink (1906)
  47. Cladonia carneola (Fr.) Fr. - 2 sites (S) [Parlin 1939; Thomson 1968)
  48. Cladonia caroliniana Tuck. - fairly common (C) [Ahti 1973)
  49. Cladonia cenotea (Ach.) Schaerer - abundant (W [Eckfeldt 1894)
  50. Cladonia cervicornis (Ach.) Flotow - common (W) [Fink 1904)
  51. Cladonia chlorophaea (Flörke ex Sommerf.) Sprengel - common (W) [Bowler 1972)
  52. Cladonia coccifera (L.) Willd. - 2 sites (N)(ARO, PIS) {ARO, 1992, Hinds 2806, HINDS!)
  53. Cladonia coniocraea (Flörke) Sprengel - abundant (W) [Eckfeldt 1894)
  54. Cladonia conista A. Evans - (W) [Parlin 1935)
  55. Cladonia cornuta (L.) Hoffm. - (W) [Parlin 1939)
  56. Cladonia crispata (Ach.) Flotow - (W) [Riddle 1909; Thomson 1968; includes C. subsubulata Nyl.)
  57. Cladonia cristatella Tuck. - (W) [Harvey/Eckfeldt 1894)
  58. Cladonia cryptochlorophaea Asah. - (W) [Bowler 1972)
  59. Cladonia cylindrica (A. Evans) A. Evans - (S) [Pitman 1932)
  60. Cladonia decorticata (Flörke) Sprengel - (W) [Parlin 1935)
  61. Cladonia deformis (L.) Hoffm. - common (W) [Eckfeldt 1894)
  62. Cladonia digitata (L.) Hoffm. - common (W) [Eckfeldt 1894)
  63. Cladonia dimorphoclada Robbins - 1 site (S) [Ahti 1973), Sandstede (Clad. Exs. 1471)
  64. Cladonia ecmocyna Leighton - 3 sites (N) [Evans 1952; Thomson 1968)
  65. Cladonia farinacea (Vainio) A. Evans - (W) [Wetmore 1984)
  66. Cladonia fimbriata (L.) Fr. - common (W) [Eckfeldt 1894)
  67. Cladonia floerkeana (Fr.) Flörke - common (W) [Torrey 1934)
  68. Cladonia furcata (Hudson) Schrader - abundant (W) [Merrill 1909a; Riddle 1909)
  69. Cladonia gracilis (L.) Willd. - Harvey/Eckfeldt (1894), Ahti (1980)
  70. Cladonia grayi G. Merr. ex Sandst. - Parlin (1935)
  71. Cladonia incrassata Flörke - Merrill (1924)
  72. Cladonia macilenta Hoffm. - Riddle (1909)
  73. Cladonia macrophylla (Schaer.) Stenh. - xx (xx: xx)
  74. Cladonia mateocyatha Robbins - Pitman (1932)
  75. Cladonia maxima (Asah.) Ahti - abundant (W) [Ahti 1980)
  76. Cladonia merochlorophaea Asah. - fairly common (N) [Bowler 1972)
  77. Cladonia metacorallifera Asah. - 1 site (N) [Selva 1988)
  78. Cladonia mitis Sandst. - Parlin (1935: x as Cladina mitis), Ahti (1961: x as Cladina mitis), Hinds & Hinds (1998: 350 as Cladina mitis)
  79. Cladonia multiformis G. Merr. - Merrill 1909a)
  80. Cladonia ochrochlora Flörke - Torrey (1934)
  81. Cladonia parasitica (Hoffm.) Hoffm. - Riddle (1909), Thomson (1968)
  82. Cladonia peziziformis (With.) J. R. Laundon - Merrill’s list, Thomson (1968)
  83. Cladonia phyllophora Hoffm. - Merrill’s list (xx: xx), Torrey (1934)
  84. Cladonia pleurota (Flörke) Schaer. - Pitman (1932), Stenroos (1989)
  85. Cladonia pocillum (Ach.) Grogn. - Merrill’s list (xxx)
  86. Cladonia polycarpoides Nyl. - Merrill (1909: xx)
  87. Cladonia pyxidata (L.) Hoffm. - Cummings & Seymour (1894)
  88. Cladonia ramulosa (With.) J. R. Laundon - Riddle (1909)
  89. Cladonia rangiferina (L.) Weber ex F. H. Wigg. - Harvey & Eckfeldt (1894: x as Cladina rangiferina), Ahti (1961: x as Cladina rangiferina), Hinds & Hinds (1998: 350 as Cladina rangiferina)
  90. Cladonia rappii A. Evans - 1936, Parlin, MAINE!; 1970, Malcolm s.n.,
  91. Cladonia rei Schaerer - Pitman (1932)
  92. Cladonia scabriuscula (Delise) Nyl. - Riddle (1909)
  93. Cladonia sobolescens Nyl. ex Vain. - Parlin (1935)
  94. Cladonia squamosa Hoffm. - Harvey/Eckfeldt (1894)
  95. Cladonia stellaris (Opiz) Pouzar & Vezda - Harvey & Eckfeldt (1894: x as Cladina stellaris), Ahti (1961 as Cladina stellaris), Hinds & Hinds (1998: 350 as Cladina stellaris)
  96. Cladonia strepsilis (Ach.) Grognot - Torrey (1934), Thomson (1968)
  97. Cladonia stygia (Fr.) Ruoss - Torrey (1938 as Cladina stygia), Hinds & Hinds (1998: 350 as Cladina stygia)
  98. Cladonia submitis A. Evans - Ahti (1961: as Cladina submitis), Hinds & Hinds (1998: 350 as Cladina submitis)
  99. Cladonia subulata (L.) F. H. Wigg. - Parlin (1935)
  100. Cladonia sulphurina (Michaux) Fr. - Wetmore (1984)
  101. Cladonia turgida Hoffm. - Harvey/Eckfeldt (1894)
  102. Cladonia uncialis (L.) F. H. Wigg. - Harvey/Eckfeldt (1894)

  103. Cliostomum griffithii (Sm.) Coppins - Lendemer (2008: 99)

  104. Coccocarpia palmicola (Spreng.) Arv. & D. J. Galloway - Arvidsson (1982: )

  105. Collema bachmanianum (Fink) Degel. - xxx
  106. Collema flaccidum (Ach.) Ach. - Merrill (1912: ), Degelius (1954), Degelius (1974)
  107. Collema furfuraceum (Arnold) Du Rietz - Degelius 1954)
  108. Collema fuscovirens (With.) J. R. Laundon - (Merrill’s list)] SOM, 1984, Hinds 647, HINDS!
  109. Collema leptaleum Tuck. - Eckfeldt (1894: ), Degelius (1974), Nelson et al. (2011: 3)
  110. Collema limosum (Ach.) Ach. - (Merrill’s list)] (ARO, KNO) {ARO, 1988, Hinds 2217, HINDS!}
  111. Collema nigrescens (Hudson) DC. - Harvey (1894: ), Degelius (1954: )
  112. Collema occultatum Bagl. - (PEN) {Lee, 1993, Hinds 2981, HINDS!}
  113. Collema polycarpon Hoffm. - Rockland (1997: xx)
  114. Collema pulcellum Ach. - Degelius (1940), Degelius (1974)
  115. Collema subflaccidum Degel. - Degelius (1954), Degelius (1974)
  116. Collema undulatum Laurer ex Flot. -

  117. Degelia plumbea (Lightf.) P. M. Jørg. & P. James - Tuckerman (1882), Jørgensen (1978) MDI; also 2 reports in Eckfeldt 1894]

  118. Dendriscocaulon umhausense (Auersw.) Degel. - Selva (1986: )
  119. Dermatocarpon luridum (With.) J. R. Laundon - Merrill (1911: xx)
  120. Dermatocarpon miniatum (L.) W. Mann - Eckfeldt (1894: xx)
  121. Dermatocarpon moulinsii (Mont.) Zahlbr. -

  122. Dibaeis baeomyces (L.f.) Rambold & Hertel - Harvey & Eckfeldt (1894), Thomson (1967)

  123. Dirinaria frostii (Tuck.) Hale & Culb. - Tuckerman (1858)

  124. Enchylium tenax (Sw.) Gray - Parlin (1939 as Collema tenax)

  125. Endocarpon pusillum Hedwig - Merrill’s list)

  126. Ephebe lanata (L.) Vain. - Sullivan (1996)

  127. Evernia mesomorpha Nyl. - Howe (1911b)

  128. Everniastrum catawbiense (Degel.) Hale ex Sipman - Sullivan (1996)

  129. Flavocetraria nivalis (L.) Kärnefelt & Thell - Harvey (1894)

  130. Flavoparmelia baltimorensis (Gyelnik & Fóriss) Hale -
  131. Flavoparmelia caperata (L.) Hale - Harvey (1894; Hale (1976a)

  132. Flavopunctelia flaventior (Stirton) Hale -
  133. Flavopunctelia soredica (Nyl.) Hale -

  134. Fuscopannaria ahlneri (P. M. Jørg.) P. M. Jørg. - Jørgensen (1978)
  135. Fuscopannaria leucophaea (Vahl) P. M. Jørg. - Merrill (1912)
  136. Fuscopannaria leucosticta (Tuck.) P. M. Jørg. - Merrill list); Degelius (1940)

  137. Heterodermia galactophylla (Tuck.) Culb. - Tuckerman (1860; Kurokawa (1962)
  138. Heterodermia hypoleuca (Muhl.) Trevisan - Harvey (1896; Kurokawa (1962)
  139. Heterodermia obscurata (Nyl.) Trevisan - Degelius (1940)
  140. Heterodermia speciosa (Wulfen) Trevisan - Harvey/Eckfeldt (1894)
  141. Heterodermia squamulosa (Degel.) Culb. - Wetmore (1984)

  142. Hypocenomyce friesii (Ach.) P. James & Gotth. Schneider - Sullivan (1996)
  143. Hypocenomyce scalaris (Ach.) Choisy - Tuckerman (1888), Dirig (1990)

  144. Hypogymnia austerodes (Nyl.) Räsänen - xxx
  145. Hypogymnia bitteri (Lynge) Ahti - Selva (1986: xxx)
  146. Hypogymnia farinacea Zopf - Merrill (1914: )
  147. Hypogymnia krogiae Ohlsson - Ohlsson (1973: )
  148. Hypogymnia physodes (L.) Nyl. - Harvey & Eckfeldt (1894: )
  149. Hypogymnia tubulosa (Schaer.) Hav. - Degelius (1940: )
  150. Hypogymnia vittata (Ach.) Parrique - Degelius (1940: xxx)

  151. Hypotrachyna revoluta (Flörke) Hale - Degelius (1940: )

  152. Imshaugia aleurites (Ach.) S. F. Meyer - Eckfeldt (1894: )
  153. Imshaugia placorodia (Ach.) S. F. Meyer - Plitt (1924: ), Culberson (1956: xxx)

  154. Lasallia papulosa (Ach.) Llano - Eckfeldt (1894: xxx), Llano (1950)
  155. Lasallia pensylvanica (Hoffm.) Llano - Merrill (1910b), Llano (1950: )

  156. Leptogium burnetiae C. W. Dodge - Sierk (1964 includes L. hirsutum Sierk)
  157. Leptogium chloromelum (Sw. ex Ach.) Nyl. - Harvey (1894)
  158. Leptogium corticola (Taylor) Tuck. - Eckfeldt (1894; Sierk (1964)
  159. Leptogium cyanescens (Rabenh.) Körb. - Harvey/Eckfeldt (1894); Sierk (1964)
  160. Leptogium laceroides (B. de Lesd.) P. M. Jørg. - Degelius (1940; Sierk (1964)
  161. Leptogium lichenoides (L.) Zahlbr. - (Merrill’s list); Sierk (1964)
  162. Leptogium milligranum Sierk - Sierk (1964)
  163. Leptogium saturninum (Dickson) Nyl. - Merrill (1910c), Sierk (1964)
  164. Leptogium tenuissimum (Dickson) Körber - Cummings & Seymour (1894), Sierk (1964)
  165. Leptogium teretiusculum (Wallr.) Arnold - Degelius (1940: ), Sierk (1964: )

  166. Lobaria pulmonaria (L.) Hoffm. - Harvey/Eckfeldt (1894), Jordan (1973)
  167. Lobaria quercizans Michaux - Degelius (1940), Jordan (1973)
  168. Lobaria scrobiculata (Scop.) DC. - Eckfeldt (1894), Jordan (1973: )

  169. Melanelia exasperata (De Not.) Essl. - Merrill’s list (xx: xx as Parmelia exasperata), Parlin (1939 as Parmelia exasperata), Esslinger (1977b as Melanelia exasperata)
  170. Melanelia exasperatula (Nyl.) Essl. - Sullivan (1996)
  171. Melanelia fuliginosa (Fr. ex Duby) Essl. - Esslinger (1977b)
  172. Melanelia halei (Ahti) Essl. - Ahti (1966; Esslinger (1977b)
  173. Melanelia hepatizon (Ach.) Thell - Howe (1913b)
  174. Melanelia infumata (Nyl.) Essl. -
  175. Melanelia olivacea (L.) Essl. - Esslinger (1977b)
  176. Melanelia panniformis (Nyl.) Essl. - Merrill’s list, Esslinger (1977b)
  177. Melanelia septentrionalis (Lynge) Essl. - Ahti (1966: ), Esslinger (1977b)
  178. Melanelia sorediata (Ach.) Goward & Ahti - Merrill (1912), Esslinger (1977b)
  179. Melanelia stygia (L.) Essl. - Harvey/Eckfeldt 1894; Esslinger 1977b)
  180. Melanelia subargentifera (Nyl.) Essl. - Parlin (1923), Esslinger (1977b: )
  181. Melanelia subaurifera (Nyl.) Essl. - Merrill (1920a), Esslinger (1977b: )

  182. Menegazzia terebrata (Hoffm.) A. Massal. - Eckfeldt (1894), Hale (1955a)

  183. Montanelia disjuncta (Erichsen) Divakar, A. Crespo, Wedin & Essl. - Esslinger (1977b as Melanelia disjuncta)

  184. Myelochroa aurulenta (Tuck.) Elix & Hale - Merrill’s list, Degelius (1940), Hale (1976b)
  185. Myelochroa galbina (Ach.) Elix & Hale - Merrill’s list, Parlin (1929), Hale (1976b)

  186. Nephroma arcticum (L.) Torss. - Eckfeldt (1894), Wetmore (1960)
  187. Nephroma bellum (Sprengel) Tuck. - Wetmore (1960)
  188. Nephroma helveticum Ach. - Harvey & Eckfeldt (1894), (1960)
  189. Nephroma laevigatum Ach. - Merrill (1911a), Wetmore (1960)
  190. Nephroma parile (Ach.) Ach. - Eckfeldt (1894), Wetmore (1960)
  191. Nephroma resupinatum (L.) Ach. - Harvey (1894)

  192. Nephromopsis cucullata (Bellardi) Divakar, A. Crespo & Lumbsch - Harvey (1894 as Flavocetraria cucullata)

  193. Normandina pulchella (Borrer) Nyl. - Degelius (1940)

  194. Lichenomphalia hudsoniana (H.S. Jenn.) Redhead, Lutzoni, Moncalvo & Vilgalys - xx (xx: xx as Omphalina hudsoniana)

  195. Pannaria conoplea (Ach.) Bory - Selva (1989)
  196. Pannaria lurida (Mont.) Nyl. - Merrill (1910a), Merrill (Lich. Exs. 113)
  197. Pannaria pezizoides (Weber) Trevisan - Eckfeldt (1894)
  198. Pannaria rubiginosa (Ach.) Bory - Merrill’s list, Degelius (1940)

  199. Parmelia fertilis Müll. Arg. - Hinds et al. (1998: 21 First record for United States)
  200. Parmelia neodiscordans Hale - Hale (1987: 30 Type in Washington, USA US)
  201. Parmelia omphalodes (L.) Ach. - Wetmore (1984), Hale (1987)
  202. Parmelia saxatilis (L.) Ach. - Eckfeldt (1894: ), Hale (1987: )
  203. Parmelia squarrosa Hale - Hale (1971: 29), Hale (1987: )
  204. Parmelia sulcata Taylor - Merrill (1909c), Hale (1987)

  205. Parmeliella triptophylla (Ach.) Müll. Arg. - Merrill’s list (xx: xx), Degelius (1940: )

  206. Parmelinopsis horrescens (Taylor) Elix & Hale - xx (xx: xx)

  207. Parmeliopsis ambigua (Wulfen) Nyl. - xx (xx: xx)
  208. Parmeliopsis capitata R.C. Harris ex J.W. Hinds & P.L. Hinds - Harris et al. (1988 as Foraminella capitata ined.)
  209. Parmeliopsis hyperopta (Ach.) Vain. - Cummings & Seymour (1894)

  210. Parmotrema arnoldii (Du Rietz) Hale - Degelius (1940), Hale (1965: xx)
  211. Parmotrema crinitum (Ach.) M. Choisy - Eckfeldt (1894), Hale (1965: xx)

  212. Parmotrema tinctorum (Despr. ex Nyl.) Hale - Eckfeldt (1894 as Parmotrema chinense)
  213. Peltigera aphthosa (L.) Willd. - Harvey/Eckfeldt (1894), Thomson (1950)
  214. Peltigera canina (L.) Willd. - Eckfeldt (1894; Thomson (1950]
  215. Peltigera degenii Gyeln. - Thomson (1950)
  216. Peltigera didactyla (With.) J. R. Laundon - Cummings & Seymour (1894), Thomson (1950)
  217. Peltigera elisabethae Gyeln. - Selva (1989)
  218. Peltigera evansiana Gyeln. - Parlin (1939: xx), Thomson (1950: )
  219. Peltigera horizontalis (Hudson) Baumg. - Eckfeldt (1894), Thomson (1950)
  220. Peltigera hydrothyria Miadlikowska & Lutzoni - Norton (1926: as Hydrothyria venosa), Andover (1987: as Hydrothyria venosa), Hinds (1048: as Hydrothyria venosa)
  221. Peltigera lepidophora (Vain.) Bitter -
  222. Peltigera leucophlebia (Nyl.) Gyelnik - Thomson (1950)
  223. Peltigera malacea (Ach.) Funck -
  224. Peltigera membranacea (Ach.) Nyl. - Thomson (1950: )
  225. Peltigera neckeri Hepp ex Müll. Arg. - Hinds (1984: )
  226. Peltigera neopolydactyla (Gyeln.) Gyeln. - WELS (1989: )
  227. Peltigera polydactylon (Necker) Hoffm. - Harvey & Eckfeldt (1894), Thomson (1950: )
  228. Peltigera praetextata (Flörke ex Sommerf.) Zopf. - Thomson (1950: )
  229. Peltigera rufescens (Weiss) Humb. - Eckfeldt (1894: ), Thomson (1950: )
  230. Peltigera scabrosa Th. Fr. - Wels (1989: )
  231. Peltigera venosa (L.) Hoffm. - Eckfeldt (1894: ), Parlin (1939: ), Turner (1928: )

  232. Phaeophyscia adiastola (Essl.) Essl. - Esslinger (1977a: )
  233. Phaeophyscia ciliata (Hoffm.) Moberg - Eckfeldt (1894: ), Esslinger (1978a: )
  234. Phaeophyscia decolor (Kashiw.) Essl. - Thomson (1963: )
  235. Phaeophyscia erythrocardia (Tuck.) Essl. - Thomson (1963: )
  236. Phaeophyscia hirtella Essl. - Selva (1988: ), WELS (1987: )
  237. Phaeophyscia hispidula (Ach.) Essl. - Merrill (1910a: ), Esslinger (1978a), Warren (1909: )
  238. Phaeophyscia kairamoi (Vain.) Moberg -
  239. Phaeophyscia orbicularis (Neck.) Moberg -
  240. Phaeophyscia pusilloides (Zahlbr.) Essl. - Esslinger (1978a: )
  241. Phaeophyscia rubropulchra (Degel.) Essl. - Parlin (1939), Esslinger (1978a)
  242. Phaeophyscia sciastra (Ach.) Moberg - Merrill 1914; Thomson 1963] (ARO, CUM, FRA, KNO, YOR)

  243. Phylliscum demangeonii (Moug. & Mont.) Nyl. - Eckfeldt (1894)

  244. Physcia adscendens (Fr.) H. Olivier - Degelius (1940; Thomson (1963]
  245. Physcia aipolia (Ehrh. ex Humb.) Fürnr. - Degelius (1940; Thomson (1963]
  246. Physcia americana G. Merr. - (on Merrill’s list & Parlin 1939, both as P. astroidea (Clem.) Nyl.)] (HAN, OXF)
  247. Physcia caesia (Hoffm.) Fürnr. - Eckfeldt (1894; Thomson (1963]
  248. Physcia dubia (Hoffm.) Lettau - Degelius (1940; Thomson (1963]
  249. Physcia leptalea (Ach.) DC. - Merrill’s list); Thomson (1963)
  250. Physcia leptalea (Ach.) DC. - Thomson (1963)
  251. Physcia millegrana Degel. - Degelius (1940; Thomson (1963]
  252. Physcia phaea (Tuck.) J. W. Thomson - Thomson (1963] (KNO, OXF, PEN) {KNO, 1909, Plitt, FH!}
  253. Physcia stellaris (L.) Nyl. - Harvey (1894; Thomson (1963]
  254. Physcia subtilis Degel. - Thomson (1963] (OXF, HAN, KNO, PIS)
  255. Physcia tenella (Scop.) DC. - Thomson (1963)
  256. Physciella chloantha (Ach.) Essl. - Merrill’s list); Parlin 1939; Esslinger 1978b)
  257. Physciella melanchra (Hue) Essl. - SOM (1993, Hinds 3002)

  258. Physconia detersa (Nyl.) Poelt - Merrill’s list); Thomson 1984/Wetmore 1984]
  259. Physconia enteroxantha (Nyl.) Poelt - Hinds 2087
  260. Physconia leucoleiptes (Tuck.) Essl. - Hinds 2589

  261. Pilophorus fibula (Tuck.) Th. Fr. - Yoshimura & Sharp 1968; Jahns 1981: MDI, US; also Eckfeldt 1894] (HAN)
  262. Placidium squamulosum (Ach.) Breuss -
  263. Placynthium asperellum (Ach.) Trevisan -
  264. Placynthium flabellosum (Tuck.) Zahlbr. - Henssen (1963)
  265. Placynthium nigrum (Hudson) Gray - Henssen (1963)
  266. Platismatia glauca (L.) W. L. Culb. & C. F. Culb. - Eckfeldt 1894; Culberson and Culberson 1968]
  267. Platismatia tuckermanii (Oakes) W. L. Culb. & C. F. Culb. - Howe (1913b), Culberson & Culberson 1968]
  268. Pseudevernia cladonia (Tuck.) Hale & Culb. - Eckfeldt (1894), Hale (1955a)
  269. Pseudevernia consocians (Vain.) Hale & Culb. - Hale (1968)

  270. Pseudocyphellaria crocata (L.) Vain. - Harvey & Eckfeldt (1894), Magnusson 1940-1941)
  271. Psora pseudorussellii Timdal - Merrill’s list, as Psora russellii)] (KNO)
  272. Psoroma hypnorum (Vahl) Gray - Eckfeldt (1894)
  273. Punctelia rudecta (Ach.) Krog - Howe (1913b: xx), Culberson & Culberson (1956: xx)
  274. Punctelia subrudecta (Nyl.) Krog - Merrill’s list); Wetmore (1984: xx)

  275. Pycnothelia papillaria Dufour - Eckfeldt 1894]
  276. Pyxine sorediata (Ach.) Mont. - Harvey 1896; Imshaug 1957]
  277. Ramalina americana Hale - Hale 1978]
  278. Ramalina dilacerata (Hoffm.) Hoffm. - Tuckerman 1882]
  279. Ramalina farinacea (L.) Ach. - Eckfeldt (1894), Bowler & Rundel (1978)
  280. Ramalina intermedia (Delise ex Nyl.) Nyl. - Merrill 1910b; Bowler & Rundel 1974]
  281. Ramalina pollinaria (Westr.) Ach. - Parlin 1939] (ARO, OXF, PIS)
  282. Ramalina roesleri (Hochst. ex Schaerer) Hue - Howe 1914]
  283. Ramalina thraustra (Ach.) Nyl. - Selva 1986] (ARO, HAN, PIS, WAS)
  284. Rimelia reticulata (Taylor) Hale & Fletcher - Merrill 1911a, as Parmelia cetrata)] (KNO) {Rockport, 1909, Merrill s.n., FH!}
  285. Solorina saccata (L.) Ach. - Thomson (1984)

  286. Sphaerophorus fragilis (L.) Pers. - Harvey (1894)
  287. Sphaerophorus globosus (Hudson) Vain - Eckfeldt (1894)

  288. Stereocaulon alpinum Laurer ex Funck - Thomson (1984?)
  289. Stereocaulon condensatum Hoffm. - Merrill’s list); Parlin (1939)
  290. Stereocaulon dactylophyllum Flörke - Eckfeldt 1894; Lamb 1977)
  291. Stereocaulon glaucescens Tuck. - Lamb 1977)
  292. Stereocaulon grande (H. Magn.) H. Magn. - Lamb 1977)
  293. Stereocaulon intermedium (Savicz) H. Magn. - 1 site (N) (WAS) {Steuben, 1988, Hinds 1183, HINDS!}
  294. Stereocaulon nanodes Tuck. - 1 site (N) (ARO) {Hersey, 1974, Lepore 155, MAINE!}
  295. Stereocaulon paschale (L.) Hoffm. - Harvey 1894; Lamb 1977)
  296. Stereocaulon pileatum Ach. - Riddle (1910), Lamb (1977)
  297. Stereocaulon saxatile H. Magn. - Lamb 1977)
  298. Stereocaulon subcoralloides (Nyl.) Nyl. - Lamb (1977)
  299. Stereocaulon tomentosum Fr. - Harvey/Eckfeldt 1894), Lamb (1977)

  300. Sticta beauvoisii Delise - 1 site (C) (HAN) {MDI, no date, Wilson s.n., US!}
  301. Sticta fuliginosa (Hoffm.) Ach. - Eckfeldt (1894)
  302. Teloschistes chrysophthalmus (L.) Th. Fr. - Eckfeldt 1894 - unverified), Kittery (1885), Thaxter 405, FH!

  303. Thamnolia vermicularis (Sw.) Ach. ex Schaerer - 1 site (N) [E. D. Merrill 1900] (PIS) {Mt. K, 1898, E. D. Merrill, MAINE!)

  304. Tuckermannopsis americana (Sprengel) Hale - Culberson & Culberson 1967)
  305. Tuckermannopsis ciliaris (Ach.) Gyelnik - Culberson & Culberson (1967)
  306. Tuckermannopsis fendleri (Nyl.) Hale - Merrill (1920 b)
  307. Tuckermannopsis orbata (Nyl.) M. J. Lai - Culberson & Culberson (1967)
  308. Tuckermannopsis sepincola (Ehrh.) Hale - Greenwood (1927)

  309. Umbilicaria americana Poelt & T. H. Nash - Poelt & Nash (1993)
  310. Umbilicaria cylindrica (L.) Delise - Eckfeldt (1894)
  311. Umbilicaria deusta (L.) Baumg. - Tuckerman (1882), Llano (1950)
  312. Umbilicaria hirsuta (Sw. ex Westr.) Ach. -
  313. Umbilicaria hyperborea (Ach.) Hoffm. - Harvey (1894), Llano (1950)
  314. Umbilicaria krascheninnikovii (Savicz) Zahlbr. - Thomson (1984)
  315. Umbilicaria mammulata (Ach.) Tuck. - Harvey & Eckfeldt (1894), Llano (1950)
  316. Umbilicaria muehlenbergii (Ach.) Tuck. - Harvey & Eckfeldt (1894), Llano (1950)
  317. Umbilicaria polyphylla (L.) Baumg. - Tuckerman (1882)
  318. Umbilicaria proboscidea (L.) Schrader - Harvey (1894)
  319. Umbilicaria torrefacta (Lightf.) Schrader - Harvey 1894; Llano 1950] (HAN, KNO, PIS)
  320. Umbilicaria vellea (L.) Hoffm. - Poelt & Nash (1993)
  321. Usnea cavernosa Tuck. - Howe (1910)
  322. Usnea ceratina Ach. - Eckfeldt (1894)
  323. Usnea dasaea Stirt. - Clerc & Herrera-Campos (1997)
  324. Usnea filipendula Stirt. - Howe (1909)
  325. Usnea fulvoreagens (Räsänen) Räsänen -
  326. Usnea subgracilis Vain. - Motyka (1936-1938 as Usnea hesperina) {Matinicus Isl., 1915, FH!}
  327. Usnea hirta (L.) F. H. Wigg. - Harvey (1894: )
  328. Usnea longissima Ach. - Harvey (1894)
  329. Usnea merrillii Mot. - Motyka (1936-1938
  330. Usnea mutabilis Stirton - Davis (1964)
  331. Usnea pachyclada Mot. - Motyka 1936-1938 {Head Harbor Isl., Norton, holotype, FH!}
  332. Usnea rubicunda Stirt. - Motyka (1936-1938)
  333. Usnea strigosa (Ach.) Eaton - Howe (1909), Hale (1962)
  334. Usnea subfloridana Stirton - Motyka (1936-1938
  335. Usnea subscabrosa Mot. -
  336. Usnea trichodea Ach. - Howe (1909)

  337. Vulpicida pinastri (Scop.) J.-E. Mattsson & M. J. Lai - Eckfeldt (1894), Mattsson (1993)
  338. Vulpicida viridis (Schwein.) J.-E. Mattsson & M. J. Lai - Merrill (1920b)

  339. Xanthoparmelia angustiphylla (Gyeln.) Hale -
  340. Xanthoparmelia conspersa (Ehrh. ex Ach.) Hale - Harvey & Eckfeldt (1894), Hale (1964)
  341. Xanthoparmelia cumberlandia (Gyeln.) Hale - Gyelnik (1934: 164 as Parmelia subconspersa var. cumberlandia Protologue), Hale (1967), Hale (1974: 487), Hale (1990) Type
  342. Xanthoparmelia plittii (Gyeln.) Hale - Wetmore 1984)
  343. Xanthoparmelia somloensis (Gyeln.) Hale - Hale (1955b)
  344. Xanthoparmelia tasmanica (Hook. f. & Taylor) Hale - Sullivan (1996)

  345. Xanthoria elegans (Link) Th. Fr. - Harvey & Eckfeldt (1894 as Xanthoria elegans), Lindblom (1997 as Xanthoria elegans)
  346. Xanthoria fallax (Hepp) Arnold - Hinds & Hinds (1994 as Xanthoria fallax), Lindblom (1997 as Xanthoria fallax)
  347. Xanthoria fulva (Hoffm.) Poelt & Petutschnig - Lindblom (1997 as Xanthoria fulva)
  348. Xanthoria hasseana Räsänen - Lindblom (1997)
  349. Xanthoria parietina (L.) Th. Fr. - Harvey & Eckfeldt (1894), Lindblom (1997)
  350. Xanthoria polycarpa (Hoffm.) Rieber - Eckfeldt (1894 as Xanthoria polycarpa), Lindblom (1997 as Xanthoria polycarpa)
  351. Xanthoria sorediata (Vainio) Poelt - Hinds & Hinds (1993 as Xanthoria sorediata)
  352. Xanthoria ulophyllodes Räsänen - Hinds & Hinds (1994: as Xanthoria ulophyllodes), Lindblom (1997: as Xanthoria ulophyllodes)