Checklist of lichens of Quebec (Canada)
Version 1 December 2018
- Acarospora badiofusca (Nyl.) Th. Fr. - Thomson (1997: 21)
- Acarospora fuscata (Nyl.) Arnold - Thomson (1997: 24)
- Acarospora glaucocarpa (Wahlenb.) Körb. - Thomson (1997: 25)
- Acarospora molybdina (Wahlenb. in Ach.) A. Massal - Thomson (1997: 28)
- Acarospora peliscypha Th. Fr. - Thomson (1997: 30)
- Alectoria nigricans (Ach.) Nyl. - Thomson (1984: 35)
- Alectoria ochroleuca (Hoffm.) A. Massal. - Le Gallo (1952: 225), Thomson (1984: 37)
- Alectoria vexillifera (Nyl.) Stizenb. - Thomson (1984: 38)
- Allantoparmelia almquistii (Vain.) Essl. - Thomson (1984: 297 as Parmelia almquistii)
- Allantoparmelia alpicola (Th. Fr.) Essl. - Thomson (1984: 299 as Parmelia alpicola)
- Amandinea punctata (Hoffm.) Coppins & Scheid. - Thomson (1997: 138 as Buellia punctata)
- Amygdalaria elegantior (Magnusson) Hertel & Brodo - Thomson (1997: 41)
- Amygdalaria panaeola (Ach.) Hertel & Brodo - Thomson (1997: 42)
- Amygdalaria pelobotryon (Wahlenb. in Ach.) Norman - Thomson (1997: 43)
- Anaptychia crinalis (Schaer.) Vezda - Thomson (1984: 40 erroneously as Anaptychia kaspica)
- Arctocetraria andrejevii (Oxner) Kärnefelt & A. Thell - Thomson (1984: 72 as Cetraria andrejevii)
- Arctoparmelia centrifuga (L.) Hale - Thomson (1984: 476 as Xanthoparmelia centrifuga)
- Arctoparmelia incurva (Pers.) Hale - Thomson (1984: 478 as Xanthoparmelia incurva)
- Arctoparmelia separata (Th. Fr.) Hale - Thomson (1984: 479 as Xanthoparmelia separata)
- Arthonia lapidicola (Taylor) Branth & Rostrup - Thomson (1997: 46)
- Arthonia patellulata Nyl. - Thomson (1997: 47)
- Arthrorhaphis alpina (Schaer.) R. Sant. - Thomson (1997: 50)
- Aspicilia berntii A. Nordin, Tibell & Owe-Larsson - Thomson (1997: 80 as Aspicilia mastoidea)
- Aspicilia caesiocinerea (Nyl. ex Malbr.) Arnold - Thomson (1997: 65)
- Aspicilia cinerea (L.) Körb. - Thomson (1997: 68)
- Athallia holocarpa (Hoffm.) Arup, Frödén & Søchting - Thomson (1997: 164 as Caloplaca holocarpa)
- Bacidia bagliettoana (A. Massal. & de Not. in A. Massal.) Jatta - Thomson (1997: 99)
- Bacidia beckhausii Körb. - Thomson (1997: 100)
- Bacidia coprodes (Ach.) Lettau - Thomson (1997: 112 erroneously as Bacidia trachona)
- Bacidia igniarii (Nyl.) Oxner - Thomson (1997: 103)
- Bacidia microcarpa (Th. Fr.) Lettau - Thomson (1997: 105)
- Bacidia rubella (Hoffm.) A. Massal. - Thomson (1997: 107)
- Baeomyces carneus (Retz.) Flörke - Thomson (1984: 48)
- Baeomyces placophyllus Ach. - Thomson (1984: 49)
- Baeomyces rufus (Huds.) Rebent. - Thomson (1984: 52)
- Bellemerea alpina (Sommerf.) Clauzade & Cl. Roux - Thomson (1997: 115)
- Bellemerea cinereorufescens (Ach.) Clauzade & Cl. Roux - Thomson (1997: 116)
- Biatora helvola Körb. ex Hellb. - Thomson (1997: 349 as Lecidea helvola)
- Biatora vernalis (L.) Fr. - Thomson (1997: 389 as Lecidea vernalis)
- Bilimbia lobulata (Sommerf.) Hafellner & Coppins - Thomson (1997: 617 as Toninia lobulata)
- Bilimbia sabuletorum (Schreb.) Arnold - Thomson (1997: 422 as Mycobilimbia sabuletorum)
- Blastenia ammiospila (Wahlenb.) Arup, Søchting & Frödén - Thomson (1997: 151 as Caloplaca ammiospila)
- Brodoa oroarctica (Krog) Goward - Thomson (1984: 239 as Hypogymnia oroarctica)
- Bryobilimbia diapensiae (Th. Fr.) Fryday, Printzen & S. Ekman - Thomson (1997: 342 as Lecidea diapensiae)
- Bryocaulon divergens (Ach.) Kärnefelt - Le Gallo (1952: 225 as Alectoria divergens), Thomson (1984: 199 as Cornicularia divergens)
- Bryonora castanea (Hepp) Poelt - Thomson (1997: 122)
- Bryoplaca jungermanniae (Vahl) Søchting, Frödén & Arup - Thomson (1997: 166 as Caloplaca jungermanniae)
- Bryoplaca sinapisperma (Lam. & DC.) Søchting, Frödén & Arup - Thomson (1997: 171 as Caloplaca sinapisperma)
- Bryoria capillaris (Ach.) Brodo & D. Hawksw. - Thomson (1984: 55)
- Bryoria chalybeiformis (L.) Brodo & D. Hawksw. - Le Gallo (1952: 225 as Alectoria chalybeiformis), Thomson (1984: 56)
- Bryoria fuscescens (Gyeln.) Brodo & D. Hawksw. - Le Gallo (1952: 225 as Alectoria jubata), Thomson (1984: 57)
- Bryoria glabra (Motyka) Brodo & D. Hawksw. - Thomson (1984: 58)
- Bryoria lanestris (Ach.) Brodo & D. Hawksw. - Thomson (1984: 59)
- Bryoria nadvornikiana (Gyeln.) Brodo & D. Hawksw. - Thomson (1984: 61)
- Bryoria nitidula ( Th. Fr.) Brodo & D. Hawksw. - Thomson (1984: 63)
- Bryoria simplicior (Vain.) Brodo & D. Hawksw. - Thomson (1984: 65)
- Bryoria tenuis (Å.E. Dahl) Brodo & D. Hawksw. - Thomson (1984: 66)
- Bryoria trichodes (Michx.) Brodo & D. Hawksw. subsp. trichodes - Thomson (1984: 68)
- Buellia disciformis (Fr.) Mudd - Thomson (1997: 129)
- Calicium trabinellum (Ach.) Ach. - Thomson (1997: 145)
- Calogaya pusilla (A. Massal.) Arup, Frödén & Søchting - Thomson (1997: 169 as Caloplaca saxicola)
- Caloplaca cerina (Ehrh. ex Hedwig) Th. Fr. - Thomson (1997: 154)
- Caloplaca fraudans (Th. Fr.) H. Olivier- Thomson (1997: 162)
- Caloplaca stillicidiorum (Vahl) Lynge - Thomson (1997: 172)
- Calvitimela armeniaca (DC.) Hafellner - Thomson (1997: 60 as Tephromela armeniaca)
- Candelariella aurella (Hoffm.) Zahlbr. - Thomson (1997: 182)
- Candelariella efflorescens R. C. Harris & W. R. Buck - Harris & Buck (1978: 155 Protologue), Thomson (1997: 185) Type in MICH
- Candelariella placodizans (Nyl.) H. Magn. - Thomson (1997: 186)
- Candelariella vitellina (Hoffm.) Müll. Arg. - Thomson (1997: 189)
- Carbonea vorticosa (Flörke) Hertel - Thomson (1997: 193)
- Catillaria glauconigrans (Tuck.) Hasse - Thomson (1997: 197)
- Catolechia wahlenbergii (Ach.) Körb. - Thomson (1997: 202)
- Cetraria aculeata (Schreb.) Fr. - Thomson (1984: 198 as Cornicularia aculeata)
- Cetraria ericetorum Opiz - Thomson (1984: 79)
- Cetraria islandica (L.) Ach. - Le Gallo (1952: 226), Thomson (1984: 84)
- Cetraria laevigata Rass. - Thomson (1984: 88)
- Cetraria nigricans (Retz.) Nyl. - Thomson (1984: 89)
- Cetrariella delisei (Bory ex Schaer.) Kärnefelt & A. Thell - Thomson (1984: 77 as Cetraria delisei)
- Cladonia acuminata (Ach.) Norrl. - Thomson (1984: 105)
- Cladonia amaurocraea (Flörke) Schaer. - Le Gallo (1952: 226), Thomson (1984: 107)
- Cladonia arbuscula (Wallr.) Rabenh. - Thomson (1984: 110)
- Cladonia bacilliformis (Nyl.) Vain. - Thomson (1984: 112)
- Cladonia bellidiflora (Ach.) Schaer. - Thomson (1984: 113)
- Cladonia botrytes (Hag.) Willd. - Thomson (1984: 114)
- Cladonia cariosa (Ach.) Spreng. - Thomson (1984: 116)
- Cladonia carneola (Fr.) Fr. - Thomson (1984: 117)
- Cladonia cenotea (Ach.) Schaer. - Thomson (1984: 118)
- Cladonia chlorophaea (Flörke ex. Sommerf.) Spreng. - Thomson (1984: 119)
- Cladonia coccifera (L.) Willd. - Le Gallo (1952: 226), Thomson (1984: 121)
- Cladonia coniocraea (Flörke) Spreng. - Thomson (1984: 122)
- Cladonia cornuta (L.) Hoffm. subsp. cornuta - Thomson (1984: 124)
- Cladonia crispata (Ach.) Flot. - Thomson (1984: 125)
- Cladonia cryptochlorophaea Asah. - Thomson (1984: 126)
- Cladonia cyanipes (Somm.) Nyl. - Thomson (1984: 127)
- Cladonia decorticata (Flörke) Spreng. - Thomson (1984: 128)
- Cladonia deformis (L.) Hoffm. - Le Gallo (1952: 226), Thomson (1984: 129)
- Cladonia digitata (L.) Hoffm. - Thomson (1984: 131)
- Cladonia ecmocyna Leight. - Thomson (1984: 132)
- Cladonia fimbriata (L.) Fr. - Thomson (1984: 133)
- Cladonia furcata (Huds.) Schrad. - Le Gallo (1952: 226)
- Cladonia gracilis (L.) Willd. subsp. turbinata (Ach.) Ahti - Thomson (1984: 136)
- Cladonia gracilis (L.) Willd. var. gracilis - Thomson (1984: 137)
- Cladonia grayi Merrl. - Thomson (1984: 139)
- Cladonia labradorica Ahti & Brodo - Ahti & Brodo (1981: 239 Type in Ottawa, Canada CANL), Ahti (1993: 82)
- Cladonia macilenta Hoffm. - Thomson (1984: 111 as Cladonia bacillaris)
- Cladonia macrophylla (Schaer.) Stenh. - Thomson (1984: 141)
- Cladonia macrophyllodes Nyl. - Thomson (1984: 143)
- Cladonia maxima (Asahina) Ahti - Thomson (1984: 145)
- Cladonia merochlorophaea Asahina - Thomson (1984: 143)
- Cladonia mitis Sandst. - Thomson (1984: 148)
- Cladonia multiformis G. Merr. - Thomson (1984: 149)
- Cladonia phyllophora Ehrh. ex Hoffm. - Thomson (1984: 153)
- Cladonia pleurota (Flörke) Schaer. - Thomson (1984: 154)
- Cladonia pocillum (Ach.) O. J. Rich. - Thomson (1984: 156)
- Cladonia portentosa (Dufour) Coem. - Le Gallo (1952: 226 as Cladonia impexa)
- Cladonia pyxidata (L.) Hoffm. - Thomson (1984: 158)
- Cladonia rangiferina (L.) Weber ex F. H. Wigg. - Thomson (1984: 159)
- Cladonia scabriuscula (Delise) Nyl. - Thomson (1984: 160)
- Cladonia squamosa (Scop.) Hoffm. - Le Gallo (1952: 227), Thomson (1984: 161)
- Cladonia stellaris (Opiz) Pouzar & Vezda - Thomson (1984: 163), Thomson (1984: 104 as Cladonia aberrans)
- Cladonia stricta (Nyl.) Nyl. - Thomson (1984: 164)
- Cladonia subfurcata (Nyl.) Arn. - Thomson (1984: 166)
- Cladonia subulata (L.) F. H. Wigg. - Thomson (1984: 168)
- Cladonia sulphurina (Michx.) Fr. - Thomson (1984: 169)
- Cladonia symphycarpa (Ach.) Fr. - Thomson (1984: 170)
- Cladonia turgida Ehrh. ex Hoffm. - Thomson (1984: 172)
- Cladonia uncialis (L.) F. H. Wigg. - Thomson (1984: 173)
- Cladonia verticillata (Hoffm.) Schaer. - Thomson (1984: 174)
- Cladonia wainioi Savicz - Thomson (1984: 157 as Cladonia pseudorangiformis)
- Collema furfuraceum (Schaer.) Du Rietz - Thomson (1984: 187)
- Cyphelium tigillare (Ach.) Ach. - Thomson (1997: 214)
- Dactylina arctica (Richards.) Nyl. - Thomson (1984: 203)
- Dactylina ramulosa (Hook.) Tuck. - Thomson (1984: 207)
- Dermatocarpon luridum (With.) J. R. Laundon - Thomson (1984: 213 as Dermatocarpon fluviatile)
- Dermatocarpon miniatum (L.) Mann. - Thomson (1984: 219)
- Dibaeis baeomyces (L. f.) Rambold & Hertel - Thomson (1984: 51 as Baeomyces roseus)
- Dimelaena oreina (Ach.) Norman - Thomson (1997: 216)
- Diploschistes muscorum (Scop.) R. Sant. - Thomson (1997: 218)
- Diploschistes scruposus (Schreber) Norman - Thomson (1997: 218)
- Diplotomma alboatrum (Hoffm.) Flot. - Thomson (1997: 127 as Buellia alboatra)
- Enchylium bachmanianum (Fink) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 179 as Collema bachmanianum)
- Enchylium polycarpon (Hoffm.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 190 as Collema polycarpon)
- Enchylium tenax (Sw.) Gray - Thomson (1984: 191 as Collema tenax)
- Euopsis granatina (Sommerf.) Nyl. - Thomson (1997: 223)
- Euopsis pulvinata (Schaer.) Nyl. - Thomson (1997: 518 as Pyrenopsis pulvinata)
- Evernia mesomorpha Nyl. - Thomson (1984: 229)
- Farnoldia jurana (Schaer.) Hertel - Thomson (1997: 225)
- Frutidella caesioatra Schaer. - Thomson (1997: 334 Lecidea caesioatra)
- Flavocetraria cucullata (Bellardi) Kärnefelt & A. Thell - Thomson (1984: 76 as Cetraria cucullata)
- Flavocetraria nivalis (L.) Kärnefelt & A. Thell - Thomson (1984: 92 as Cetraria nivalis)
- Flavoplaca citrina (Hoffm.) Arup, Frödén & Søchting - Thomson (1997: 155 as Caloplaca citrina)
- Fuscidea recensa (Stirt.) Hertel, V. Wirth & Vezda - Thomson (1997: 234)
- Fuscopannaria confusa (P. M. Jørg.) P. M. Jørg. - Roy (2003: 44)
- Fuscopannaria hookerioides P. M. Jørg. - Roy (2003: 45)
- Gyalolechia bracteata (Hoffm.) A. Massal. - Thomson (1997: 228 as Fulgensia bracteata)
- Gyalolechia flavovirescens (Wulfen) Søchting, Frödén & Arup - Thomson (1997: 161 as Caloplaca flavovirescens)
- Gyalolechia xanthostigmoidea (Räsänen) Søchting, Frödén & Arup - Thomson (1997: 158 as Caloplaca discolor)
- Helocarpon crassipes (Th. Fr.) Coppins - Thomson (1997: 414 as Micarea crassipes)
- Hypocenomyce scalaris (Ach. ex Lilj.) M. Choisy - Thomson (1997: 248)
- Hypogymnia austerodes Nyl. - Thomson (1984: 237)
- Hypogymnia bitteri (Lynge) Ahti - Thomson (1984: 238)
- Hypogymnia enteromorpha (Ach.) Nyl. - Le Gallo (1952: 227 as Parmelia enteromorpha)
- Hypogymnia physodes (L.) Nyl. - Le Gallo (1952: 227 as Parmelia physodes), Thomson (1984: 241)
- Hypogymnia pulverata (Nyl. ex Crombie) Elix - Brodo (1989: 185)
- Hypogymnia subobscura (Vain) Poelt - Thomson (1984: 242)
- Hypogymnia vittata (Ach.) Gas. - Thomson (1984: 243)
- Icmadophila ericetorum (L.) Zahlbr.- Thomson (1997: 249)
- Imshaugia aleurites (Ach.) S. F. Meyer - Thomson (1984: 321 as Parmeliopsis aleurites)
- Ionaspis lacustris (With.) Lutzoni - Thomson (1997: 245 as Hymenelia lacustris)
- Japewia tornoensis Nyl. - Thomson (1997: 387 as Lecidea tornoensis)
- Lasallia papulosa (Ach.) Llano - Thomson (1984: 245)
- Lasallia pensylvanica (Hoffma.) Llano - Thomson (1984: 246)
- Lathagrium fuscovirens (With.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 192 as Collema tuniforme)
- Lathagrium undulatum (Flot.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 194 as Collema undulatum)
- Lecanora allophana (Ach.) Nyl. - Thomson (1997: 266)
- Lecanora argentea Brodo - Thomson (1997: 281 as Lecanora fuliginosa)
- Lecanora argopholis (Ach.) Ach. - Thomson (1997: 267)
- Lecanora atrosulphurea (Wahlenb.) Ach. - Thomson (1997: 267)
- Lecanora cenisia Ach. - Thomson (1997: 272)
- Lecanora chlarotera Nyl. - Thomson (1997: 273), Thomson (1997: 301 as Lecanora rugosella)
- Lecanora circumborealis Brodo & Vitik. - Thomson (1997: 274)
- Lecanora crenulata Hook. - Thomson (1997: 277)
- Lecanora dispersa (Pers.) Sommerf. - Thomson (1997: 278)
- Lecanora epibryon (Ach.) Ach. - Thomson (1997: 279)
- Lecanora expallens Ach. - Thomson (1997: 281)
- Lecanora hagenii (Ach.) Ach. - Thomson (1997:286)
- Lecanora intricata (Ach.) Ach.- Thomson (1997: 288)
- Lecanora muralis (Schreber) Rabenh. - Thomson (1997: 295)
- Lecanora orae-frigidae R. Sant. - Thomson (1997: 297)
- Lecanora perplexa Brodo - Thomson (1997: 298)
- Lecanora albellula Nyl. - Thomson (1997: 299 as Lecanora piniperda)
- Lecanora polytropa (Ehrh. in Hoffm.) Rabenh. - Thomson (1997: 299)
- Lecanora pulicaris (Pers.) Ach. - Thomson (1997: 301)
- Lecanora rupicola (L.) Zahlbr. - Thomson (1997: 303)
- Lecanora straminea (Wahlenb.) Ach. - Thomson (1997: 306)
- Lecanora subintricata (Nyl.) Th. Fr. - Thomson (1997: 307)
- Lecanora subrugosa Nyl. - Thomson (1997: 308)
- Lecanora symmicta (Ach.) Ach. - Thomson (1997: 309)
- Lecanora torrida Vain. - Thomson (1997: 310)
- Lecanora varia (Hoffm.) Ach. - Thomson (1997: 311)
- Lecanora xylophila Hue - Thomson (1997: 284 as Lecanora grantii)
- Lecidea atrobrunnea (Ramond ex Lam. & DC.) Schaer. - Thomson (1997: 327)
- Lecidea auriculata Th. Fr. - Thomson (1997: 329)
- Lecidea confluens (W. A. Weber) Ach. - Thomson (1997: 339)
- Lecidea diducens Nyl. - Thomson (1997: 343)
- Lecidea lapicida (Ach.) Ach. - Thomson (1997: 355 as Lecidea lactea), Thomson (1997: 357)
- Lecidea lithophila (Ach.) Ach. - Thomson (1997: 362)
- Lecidea nylanderi (Anzi) Th. Fr. - Thomson (1997: 365)
- Lecidea paupercula Th. Fr. - Thomson (1997: 369)
- Lecidea picea Lynge - Thomson (1997: 371)
- Lecidea plana (J. Lahm. in Körb.) Nyl. - Thomson (1997: 372)
- Lecidea plebeja Nyl. - Thomson (1997: 374)
- Lecidea ramulosa Th. Fr. - Thomson (1997: 376)
- Lecidea tessellata Flörke - Thomson (1997: 384)
- Lecidella carpathica Körb. - Thomson (1997: 395)
- Lecidella euphorea (Flörke) Hertel - Thomson (1997: 398)
- Lecidella stigmatea (Ach.) Hertel & Leuck. - Thomson (1997: 402)
- Lecidella wulfenii (Hepp) Körb. - Thomson (1997: 403)
- Lecidoma demissum (Rutstr.) Gotth. Schneider & Hertel - Thomson (1997: 405)
- Leciophysma finmarkicum Th. Fr. - Thomson (1984: 248)
- Leciophysma furfurascens (Nyl.) Gyeln. - Thomson (1984: 249)
- Lempholemma polyanthes (Bernh.) Malme - Thomson (1997: 407 as Lempholemma myriococcum)
- Lempholemma radiatum (Sommerf.) Henssen - Thomson (1997: 407)
- Leproplaca cirrochroa (Ach.) Arup, Frödén & Søchting - Thomson (1997: 155 as Caloplaca cirrochroa)
- Leptogium saturninum (Dicks.) Nyl. - Thomson (1984: 262)
- Lichenomphalia hudsoniana (H. S. Jenn.) Redhead, Lutzoni, Moncalvo & Vilgalys - Thomson (1984: 196 as Coriscium viride)
- Lobarina scrobiculata (Scop.) Nyl. ex Cromb. - Thomson (1984: 271 as Lobaria scrobiculata)
- Lobothallia alphoplaca (Wahlenb. in Ach.) Hafellner - Thomson (1997: 59 as Aspicilia alphoplaca)
- Lopadium coralloideum (Nyl.) Lynge - Thomson (1997: 409)
- Lopadium pezizoideum (Ach.) Körb. - Thomson (1997: 411)
- Megaspora verrucosa (Ach.) Hafellner & V. Wirth - Thomson (1997: 443 as Pachyospora verrucosa)
- Melanelia commixta (Nyl.) A. Thell - Thomson (1984: 75 as Cetraria commixta)
- Melanelia hepatizon (Ach.) A. Thell - Thomson (1984: 82 as Cetraria hepatizon)
- Melanelixia glabratula (Lamy) Sandler & Arup - Thomson (1984: 303 as Parmelia glabratula)
- Melanelixia subaurifera (Nyl.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 316 as Parmelia subaurifera)
- Melanohalea elegantula (Zahlbr.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 300 as Parmelia elegantula)
- Melanohalea exasperatula (Nyl.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 300 as Parmelia exasperatula)
- Melanohalea infumata (Nyl.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 304 as Parmelia infumata)
- Melanohalea olivacea (L.) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 306 as Parmelia olivacea)
- Melanohalea septentrionalis (Lynge) O. Blanco, A. Crespo, Divakar, Essl., D. Hawksw. & Lumbsch - Thomson (1984: 311 as Parmelia septentrionalis)
- Micarea assimilata (Nyl.) Coppins - Thomson (1997: 413)
- Micarea melaena (Nyl.) Hedl. - Thomson (1997: 419)
- Micarea turfosa (A. Massal.) Du Rietz - Thomson (1997: 420)
- Miriquidica leucophaea (Flörke ex Rabenh.) Nyl. - Thomson (1997: 359 as Lecidea leucophaea)
- Miriquidica lulensis (Hellbom) Hertel & Rambold - Thomson (1997:363 as Lecidea lulensis)
- Montanelia disjuncta (Erichsen) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 299 as Parmelia disjuncta)
- Montanelia panniformis (Nyl.) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 309 as Parmelia panniformis)
- Montanelia sorediata (Ach.) Divakar, A. Crespo, Wedin & Essl. - Thomson (1984: 312 as Parmelia sorediosa)
- Mycobilimbia berengeriana (A. Massal.) Th. Fr. - Thomson (1997: 331 as Lecidea berengeriana)
- Mycobilimbia epixanthoides (Nyl.) Vitik., Ahti, Kuusinen, Lommi & T. Ulvinen - Thomson (1997: 101 as Bacidia epixanthoides)
- Mycobilimbia pilularis (Körb.) Hafellner & Türk - Thomson (1997: 110 as Bacidia sphaeroides)
- Mycoblastus affinis (Schaer.) Schauer- Thomson (1997: 424)
- Mycoblastus sanguinarius (L.) Norman - Thomson (1997: 426)
- Nephroma arcticum (L.) Torss. - Thomson (1984: 277)
- Nephroma bellum (Spreng.) Tuck. - Thomson (1984: 278)
- Nephroma expallidum (Nyl.) Nyl. - Thomson (1984: 279)
- Nephroma helveticum Ach. - Thomson (1984: 280)
- Nephroma parile (Ach.) Ach. - Thomson (1984: 282)
- Nephroma resupinatum (L.) Ach. - Thomson (1984: 283)
- Ochrolechia androgyna (Hoffm.) Arnold - Thomson (1997: 430)
- Ochrolechia frigida (Sw.) Lynge - Thomson (1997: 431)
- Ochrolechia inaequatula (Nyl.) Zahlbr. - Thomson (1997: 434)
- Ochrolechia pseudopallescens Brodo - Brodo (1991: 755 Type)
- Ochrolechia upsaliensis (L.) A. Massal. - Thomson (1997: 436)
- Ophioparma lapponica (Räsänen) Hafellner & Rogers - Thomson (1997: 440)
- Orphniospora moriopsis (A. Massal.) D. Hawksw. - Thomson (1997: 441)
- Pannaria conoplea (Ach.) Bory - Thomson (1984: 292)
- Parmelia fraudans (Nyl.) Nyl. - Thomson (1984: 302)
- Parmelia omphalodes (L.) Ach. - Thomson (1984: 308)
- Parmelia saxatilis (L.) Ach. - Le Gallo (1952: 227), Thomson (1984: 310)
- Parmelia squarrosa Hale - Thomson (1984: 313)
- Parmelia sulcata Tayl. - Le Gallo (1952: 227), Thomson (1984: 318)
- Parmeliella praetermissa (Nyl.) James - Thomson (1984: 320)
- Parmeliella triptophylla (Ach.) Mül. Arg. - Thomson (1984: 321)
- Parmeliopsis ambigua (Wulf.) Nyl. - Thomson (1984: 325)
- Parmeliopsis hyperopta (Ach.) Arnold - Thomson (1984: 326)
- Parvoplaca tiroliensis (Zahlbr.) Arup, Søchting & Frödén - Thomson (1997: 173 as Caloplaca tiroliensis)
- Peltigera aphthosa (L.) Willd. - Thomson (1984: 329)
- Peltigera collina (Ach.) Schrad. - Thomson (1984: 334)
- Peltigera didactyla (With.) J. R. Laundon - Thomson (1984: 332 as Peltigera canina f. sorediata)
- Peltigera horizontalis (Huds.) Baumg. - Thomson (1984: 337)
- Peltigera lepidophora (Nyl.) Vain. - Thomson (1984: 338)
- Peltigera leucophlebia (Nyl.) Gyeln. - Thomson (1984: 330 as Peltigera aphthosa var. leucophlebia)
- Peltigera malacea (Ach.) Funck. - Thomson (1984: 339)
- Peltigera membranacea (Ach.) Nyl. - Thomson (1984: 340)
- Peltigera polydactyla (Neck.) Hoffm. - Thomson (1984: 343)
- Peltigera rufescens (Weis.) Mudd - Thomson (1984: 333 as Peltigera canina var. rufescesns)
- Peltigera scabrosa Th. Fr. - Thomson (1984: 344)
- Peltigera venosa (L.) Baumg. - Thomson (1984: 345)
- Pertusaria leioplaca xxx - Thomson (1997: 447 as Pertusaria alpina)
- Pertusaria atra Lynge - Thomson (1997: 448)
- Pertusaria bryontha (Ach.) Nyl. - Thomson (1997: 449)
- Pertusaria carneopallida (Nyl.) Anzi ex Nyl. - Thomson (1997: 451)
- Pertusaria coriacea (Th. Fr.) Th. Fr. - Thomson (1997: 452)
- Pertusaria dactylina (Ach.) Nyl. - Thomson (1997: 453)
- Pertusaria geminipara (Th. Fr.) Knight ex Brodo - Thomson (1997: 455)
- Pertusaria oculata (Dickson) Th. Fr. - Thomson (1997: 458)
- Pertusaria panyrga (Ach.) A. Massal. - Thomson (1997: 459)
- Pertusaria subdactylina Nyl. - Thomson (1997: 461)
- Pertusaria subobducens Nyl. - Thomson (1997: 462)
- Phaeophyscia endococcina (Körb.) Moberg - Thomson (1984: 348)
- Phaeophyscia sciastra (Ach.) Moberg - Thomson (1984: 349)
- Physcia adscendens (Fr.) Oliv. - Thomson (1984: 352)
- Physcia aipolia (Humb.) Fürnrohr - Thomson (1984: 353)
- Physcia caesia (Hoffm.) Fürnrohr - Thomson (1984: 354)
- Physcia dubia (Hoffm.) Lettau - Thomson (1984: 355)
- Physcia phaea (Tuck.) J. W. Thomson - Thomson (1984: 356)
- Physcia tenella (Scop.) DC. subsp. marina (A. Nyl.) D. Hawksw. - Thomson (1984: 357 as Physcia subobscura)
- Physconia detersa (Nyl.) Poelt - Thomson (1984: 359)
- Physconia muscigena (Ach.) Poelt - Thomson (1984: 360)
- Pilophorus cereolus (Ach.) Th. Fr. in Hellbom - Thomson (1984: 362)
- Pilophorus dovrensis (Nyl.) Timdal, Hertel & Rambold - Thomson (1997: 367 as Lecidea pallida)
- Pilophorus robustus Th. Fr. - Thomson (1984: 363)
- Placidium lachneum (Ach.) B. de Lesd. - Thomson (1984: 217 as Dermatocarpon lachneum)
- Placynthiella oligotropha (J. R. Laundon) Coppins & James - Thomson (1997: 474)
- Placynthiella uliginosa (Schrad.) Coppins & James - Thomson (1997: 475)
- Placynthium nigrum (Huds.) Gray - Thomson (1984: 366)
- Plastimatia glauca (L.) W. L. Culb. & C. F. Culb. - Le Gallo (1952: 225 as Cetraria glauca), Thomson (1984: 368)
- Polyblastia cupularis A. Massal. - Thomson (1997: 478)
- Polyblastia theleodes (Sommerf.) Th. Fr. - Thomson (1997: 484)
- Polycauliona candelaria (L.) Frödén, Arup, & Søchting - Thomson (1984: 483 as Xanthoria candelaria)
- Polycauliona polycarpa (Hoffm.) Frödén, Arup, & Søchting - Le Gallo (1952: 227 as Xanthoria polycarpa), Thomson (1984: 487 as Xanthoria polycarpa)
- Polysporina simplex (Davis) Vezda - Thomson (1997: 486)
- Porpidia flavocoerulescens (Hornem.) Hertel & Schwab - Thomson (1997: 491 as Porpidia flavicunda), Thomson (1997: 492)
- Porpidia grisea Gowan - Thomson (1997: 493)
- Porpidia lowiana Gowan - Thomson (1997: 494)
- Porpidia ochrolemma (Vain.) Brodo & R. Sant. - Thomson (1997: 495 as Porpidia pseudolinodes)
- Porpidia speirea (Ach.) Kremp. - Thomson (1997: 497)
- Porpidia thomsonii Gowan - Thomson (1997: 498)
- Porpidia tuberculosa (Sm. in Sm. & Sow.) Hertel & Knoph - Thomson (1997: 500)
- Protoblastenia calva (Dickson) Zahlbr. - Thomson (1997: 502)
- Protoblastenia rupestris (Scop.) Steiner - Thomson (1997: 503)
- Protomicarea alpestris (Sommerf.) McCune - Thomson (1997: 326 as Lecidea alpestris)
- Protomicarea limosa (Ach.) Hafellner - Thomson (1997: 361 as Lecidea limosa)
- Protopannaria pezizoides (Weber) P. M. Jørg. & S. Ekman - Thomson (1984: 294 as Pannaria pezizoides)
- Protoparmelia badia (Hoffm.) Hafellner - Thomson (1997: 269 as Lecanora badia)
- Protothelenella sphinctrinoidella (Nyl.) H. Mayrhofer & Poelt - Thomson (1997: 504)
- Protothelenella sphinctrinoides (Nyl.) H. Mayrhofer & Poelt - Thomson (1997: 505)
- Pseudephebe minuscula (Nyl. ex Arnold) Brodo & D. Hawksw. - Thomson (1984: 373)
- Pseudephebe pubescens (L.) M. Choisy - Thomson (1984: 374)
- Psora decipiens (Hedwig) Hoffm. - Thomson (1997: 507)
- Psora globifera (Ach.) A. Massal. - Thomson (1997: 508)
- Psoroma hypnorum (Vahl) Gray - Thomson (1984: 375)
- Punctelia borreri (Sm.) Krog - Le Gallo (1952: 227 as Parmelia borreri)
- Ramalina calicaris (Fr.) Herre - Le Gallo (1952: 227 as Ramalina canaliculata)
- Ramalina farinacea (L.) Ach. - Le Gallo (1952: 227)
- Ramalina intermedia (Del. ex Nyl.) Nyl. - Thomson (1984: 379)
- Ramalina pollinaria (Westr.) Ach. - Le Gallo (1952: 227)
- Ramalina roesleri (Hoechst. ex Schaer.) Hue - Thomson (1984: 233 as Fisturiella roesleri)
- Ramalina thrausta (Ach.) Nyl. - Thomson (1984: 382)
- Ramboldia cinnabarina Sommerf. - Thomson (1997: 336 as Lecidea cinnabarina)
- Rhizocarpon badioatrum (Flörke ex Spreng.) Th. Fr. - Thomson (1997: 524)
- Rhizocarpon cinereovirens (Müll. Arg.) Vain. - Thomson (1997: 528)
- Rhizocarpon concentricum (Davis) Beltram. - Thomson (1997: 529)
- Rhizocarpon copelandii (Körb.) Th. Fr. - Thomson (1997: 531)
- Rhizocarpon eupetraeoides (Nyl.) Blomb. & Forss. - Thomson (1997: 532)
- Rhizocarpon eupetraeum (Nyl.) Arnold - Thomson (1997: 533)
- Rhizocarpon expallens Th. Fr. - Thomson (1997: 535)
- Rhizocarpon geminatum Körb. - Thomson (1997: 537)
- Rhizocarpon geographicum (L.) DC. - Thomson (1997: 538)
- Rhizocarpon grande (Flörke ex Flotow) Arnold - Thomson (1997: 539)
- Rhizocarpon hochstetteri (Körb.) Vain. - Thomson (1997: 540)
- Rhizocarpon inarense (Vain.) Vain. - Thomson (1997: 541)
- Rhizocarpon jemtlandicum Malme - Thomson (1997: 542)
- Rhizocarpon norvegicum Räsänen - Thomson (1997: 544)
- Rhizocarpon obscuratum (Ach.) A. Massal. - Thomson (1997: 545)
- Rhizocarpon polycarpum (Hepp) Th. Fr. - Thomson (1997: 546)
- Rhizocarpon riparium Räsänen - Thomson (1997: 548)
- Rhizocarpon rittokense (Hellbom) Th. Fr. - Thomson (1997: 549)
- Rhizocarpon superficiale (Schaer.) Vain. - Thomson (1997: 551)
- Rhizoplaca chrysoleuca (Sm.) Zopf - Thomson (1997: 554)
- Rhizoplaca melanophthalma (Ramond) Leuck. & Poelt - Thomson (1997: 555)
- Rinodina calcigena (Th. Fr.) Lynge - Thomson (1997: 562)
- Rinodina mniaraea (Ach.) Körb. - Thomson (1997: 567)
- Rinodina turfacea (Wahlenb.) Körb. - Thomson (1997: 571)
- Ropalospora lugubris (Sommerf.) Poelt - Thomson (1997: 571)
- Rusavskia elegans (Link) S. Y. Kondr. & Kärnefelt - Thomson (1984: 484 as Xanthoria elegans)
- Rusavskia sorediata (Vain.) S. Y. Kondr. & Kärnefelt - Thomson (1984: 487 as Xanthoria sorediata)
- Sagiolechia rhexoblephara (Nyl.) Zahlbr. - Thomson (1997: 575)
- Sarcogyne clavus (DC. in Lam. & DC.) Kremp. - Thomson (1997: 577)
- Sarcogyne regularis Körb. - Thomson (1997: 579)
- Sarcosagium campestre (Fr.) Poetsch & Schiedem. - Thomson (1997: 119 as Biatorella campestris)
- Schaereria tenebrosa (Flot.) Hertel & Poelt - Thomson (1997: 584)
- Scoliciosporum umbrinum (Ach.) Arnold - Thomson (1997: 585)
- Scytinium lichenoides (L.) Zahlbr. - Thomson (1984: 257 as Leptogium lichenoides)
- Scytinium tenuissimum (Dicks.) Otálora, P. M. Jørg. & Wedin - Thomson (1984: 264 as Leptogium tenuissimum)
- Siphula ceratites (Wahlenb.) Fr. - Thomson (1984: 384)
- Solorina bispora Nyl. - Thomson (1984: 386)
- Solorina crocea (L.) Ach. - Thomson (1984: 387)
- Solorina saccata (L.) Ach. - Thomson (1984: 390)
- Solorina spongiosa (Sm.) Anzi - Thomson (1984: 391)
- Sphaerophorus fragilis (L.) Pers. - Thomson (1984: 393)
- Sphaerophorus globosus (Huds.) Vain. - Thomson (1984: 394)
- Sporastatia polyspora (Nyl.) Grumm. - Thomson (1997: 588)
- Sporastatia testudinea (Ach.) A. Massal. - Thomson (1997: 589)
- Staurothele areolata (Ach.) Lettau - Thomson (1997: 592)
- Staurothele drummondii (Tuck.) Tuck. - Thomson (1997: 595)
- Staurothele fissa (Tayler) Zwackh. - Thomson (1997: 596)
- Stereocaulon alpinum Laurer - Thomson (1984: 400)
- Stereocaulon arcticum Lynge - Thomson (1984: 402)
- Stereocaulon arenarium (Savicz) I. M. Lamb - Thomson (1984: 403)
- Stereocaulon botryosum Ach. - Thomson (1984: 405)
- Stereocaulon condensatum Hoffm.- Thomson (1984: 407)
- Stereocaulon dactylophyllum Flörke - Thomson (1984: 410)
- Stereocaulon glareosum (Sav.) Magn. - Thomson (1984: 412)
- Stereocaulon grande (Magn.) Magn. - Thomson (1984: 413)
- Stereocaulon incrustatum Flörke - Thomson (1984: 415)
- Stereocaulon paschale (L.) Hoffm. - Thomson (1984: 418)
- Stereocaulon pileatum Ach.- Thomson (1984: 419)
- Stereocaulon rivulorum Magn. - Thomson (1984: 421)
- Stereocaulon saxatile Magn. - Thomson (1984: 423)
- Stereocaulon subcoralloides (Nyl.) Nyl. - Thomson (1984: 426)
- Stereocaulon tomentosum E. Fries - Le Gallo (1952: 227), Thomson (1984: 428)
- Stereocaulon vesuvianum Pers. - Thomson (1984: 430)
- Tephromela atra (Huds.) Hafellner - Thomson (1997: 633)
- Tetramelas geophila (Flörke ex Sommerf.) Norman - Thomson (1997: 133 as Buellia geophila)
- Tetramelas papillatus (Sommerf.) Kalb - Thomson (1997: 136 as Buellia papillata)
- Thamnolia subuliformis (Ehrh.) W. L. Culb. - Thomson (1984: 438)
- Thamnolia vermicularis (Sw.) Schaer. - Thomson (1984: 438)
- Thrombium epigaeum (Pers.) Wallr. - Thomson (1997: 610)
- Toninia caeruleonigricans (Lightf.) Th. Fr. - Thomson (1997: 614)
- Trapelia coarctata (Turner ex Sm. & Sow.) M. Choisy - Thomson (1997: 621)
- Trapeliopsis granulosa (Hoffm.) Lumbsch - Thomson (1997: 624)
- Trapeliopsis viridescens (Schrad.) Coppins & James- Thomson (1997: 625)
- Tremolecia atrata (Ach.) Hertel - Thomson (1997: 627)
- Tuckermannopsis americana (Sprengel) Hale - Thomson (1984: 81 as Cetraria halei)
- Tuckermannopsis sepincola (Ehrh.) Hale - Thomson (1984: 94 as Cetraria sepincola)
- Umbilicaria arctica (Ach.) Nyl. - Thomson (1984: 444)
- Umbilicaria cylindrica (L.) Delise - Thomson (1984: 448)
- Umbilicaria deusta (L.) Baumg. - Thomson (1984: 449)
- Umbilicaria havaasii Llano - Thomson (1984: 451)
- Umbilicaria hyperborea (Ach.) Hoffm. var. hyperborea - Thomson (1984: 453)
- Umbilicaria lyngei Schol. - Thomson (1984: 28 as Agyrophora lyngei)
- Umbilicaria mammulata (Ach.) Tuck. - Thomson (1984: 454)
- Umbilicaria muehlenbergii (Ach.) Tuck. - Thomson (1984: 26 as Actinogyra muehlenbergii)
- Umbilicaria polaris (Schol.) Zahlbr. - Thomson (1984: 289 as Omphalodiscus krascheninnikovii)
- Umbilicaria polyphylla (L.) Baumg. - Thomson (1984: 457)
- Umbilicaria proboscidea (L.) Schrad. - Thomson (1984: 458)
- Umbilicaria torrefacta (Lightf.) Schrad. - Thomson (1984: 459)
- Umbilicaria vellea (L.) Ach. - Thomson (1984: 460)
- Umbilicaria virginis Schaer. - Thomson (1984: 290 as Omphalodiscus virginis)
- Usnea cavernosa Tuck. - Thomson (1984: 463)
- Usnea dasopoga (Ach.) Nyl. - Thomson (1984: 465)
- Usnea hirta (L.) F. H. Wigg. - Thomson (1984: 467)
- Usnea subfloridana Stirt. - Thomson (1984: 469)
- Usnea substerilis Motyka - Thomson (1984: 470)
- Varicellaria rhodocarpa (Körb.) Th. Fr. - Thomson (1997: 629)
- Verrucaria muralis Ach. - Thomson (1997: 641)
- Verrucaria nigrescens Pers. - Thomson (1997: 642)
- Verrucaria rupestris Schrad. - Thomson (1997: 643)
- Vestergrenopsis isidiata (Degel.) Dahl - Thomson (1984: 473)
- Vulpicida pinastri (Scop.) J.-E. Mattsson & M. J. Lai - Thomson (1984: 93 as Cetraria pinastri)
- Vulpicida tilesii (Ach.) J.-E. Mattsson & M. J. Lai - Thomson (1984: 95 as Cetraria tilesii)
- Xanthomendoza fallax Søchting, Kärnefelt & S. Y. Kondr. - Thomson (1984: 486 as Xanthoria fallax)
- Xanthoparmelia viriduloumbrina (Gyeln.) Lendemer - Thomson (1984: 480 erroneously as Xanthoparmelia taractica)
- Xylographa parallela (Ach.) Fr. - Thomson (1997: 646 as Xylographa abietina)
- Xylographa vitiligo (Ach.) J. R. Laundon - Thomson (1997: 647)
- Xylopsora friesii (Ach. in Lilj.) Bendiksby & Timdal - Thomson (1997: 247 as Hypocenomyce friesii)