Checklist of lichens of Newfoundland & Labrador (Canada)
Version 31 December 2017
- Acarospora fuscata (Nyl.) Arnold - Thomson (1997: 24)
- Acarospora glaucocarpa (Wahlenb.) Körb. - Thomson (1997: 25)
- Adelolecia pilati (Hepp) Hertel & Hafellner - Thomson (1997: 37)
- Alectoria nigricans (Ach.) Nyl. - Thomson (1984: 35), Walker (2007: 89), Lendemer (2008: 103)
- Alectoria ochroleuca (Hoffm.) A. Massal. - Thomson (1984: 37), Walker (2007: 89)
- Alectoria sarmentosa - Walker (2007: 88), Deduke (2014: 35)
- Alectoria vexillifera (Nyl.) Stizenb. - Thomson (1984: 38) Lendemer (2008: 103)
- Allantoparmelia almquistii (Vain.) Essl. - Thomson (1984: 297 as Parmelia almquistii)
- Allantoparmelia alpicola (Th. Fr.) Essl. - Thomson (1984: 299 as Parmelia alpicola)
- Amandinea coniops (Wahlenb. in Ach.) Th. Fr. - Thomson (1997: 128 as Buellia coniops)
- Amandinea punctata (Hoffm.) Coppins & Scheid. - Thomson (1997: 138 as Buellia punctata)
- Amygdalaria panaeola (Ach.) Hertel & Brodo - Thomson (1997: 42)
- 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)
- Arthopyrenia punctiformis (Pers.) A. Massal. - Thomson (1997: 49)
- Arthrorhaphis citrinella (Ach.) Poelt - Lendemer (2008: 101)
- Aspicilia cinerea (L.) Körb. - Thomson (1997: 68)
- Athallia holocarpa (Hoffm.) Arup, Frödén & Søchting - Thomson (1997: 164 as Caloplaca holocarpa)
- Athallia pyracea (Ach.) Arup, Frödén & Søchting - Deduke (2014: 35)
- Athallia scopularis (Nyl.) Arup, Frödén & Søchting - Thomson (1997: 169 as Caloplaca scopularis)
- Bacidia bagliettoana (A. Massal. & de Not. in A. Massal.) Jatta - Thomson (1997: 99)
- Baeomyces carneus (Retz.) Flörke - Thomson (1984: 48)
- Baeomyces placophyllus Ach. - Thomson (1984: 49)
- Baeomyces rufus (Huds.) Rebent. - Thomson (1984: 52), Deduke (2014: 35)
- Bellemerea alpina (Sommerf.) Clauz. & Roux - Thomson (1997: 115)
- Bellemerea cinereorufescens (Ach.) Clauz. & Cl. Roux - Thomson (1997: 116)
- Biatora vernalis (L.) Ach. - Thomson (1997: 389 as Lecidea vernalis)
- Bilimbia lobulata (Sommerf.) Hafellner & Coppins - Thomson (1997: 617 as Toninia lobulata)
- Bilimbia microcarpa (Th. Fr.) Th. Fr. - Thomson (1997: 105 as Bacidia microcarpa)
- Bilimbia sabuletorum (Schreb.) Arnold - Thomson (1997: 422 as Mycobilimbia sabuletorum)
- Bryobilimbia diapensiae (Th. Fr.) Fryday, Printzen & S. Ekman - Thomson (1997: 342 as Lecidea diapensiae)
- Bryocaulon divergens (Ach.) Kärnefelt -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 (DC.) Søchting, Frödén & Arup - Thomson (1997: 170 as Caloplaca sinapisperma)
- Bryoria americana - Deduke (2014: 35)
- Bryoria capillaris (Ach.) Brodo & D. Hawksw. - Thomson (1984: 55)
- Bryoria chalybeiformis (L.) Brodo & D. Hawksw. - Thomson (1984: 56)
- Bryoria furcellata - Walker (2007: 90)
- Bryoria fuscescens (Gyeln.) Brodo & D. Hawksw. - Thomson (1984: 57), Walker (2007: 90)
- Bryoria glabra (Mot.) Brodo & D. Hawksw. - Thomson (1984: 58)
- Bryoria lanestris (Ach.) Brodo & D. Hawksw. - Thomson (1984: 59), Walker (2007: 90)
- Bryoria nadvornikiana (Gyeln.) Brodo & D. Hawksw. - Thomson (1984: 61), Walker (2007: 90)
- Bryoria nitidula ( Th. Fr.) Brodo & D. Hawksw. - Thomson (1984: 63), Walker (2007: 90)
- Bryoria simplicior (Vain.) Brodo & D. Hawksw. - Thomson (1984: 65)
- Bryoria tenuis (Dahl) Brodo & D. Hawksw. - Thomson (1984: 66)
- Bryoria trichodes (Michx.) Brodo & D. Hawksw. - Thomson (1984: 68), Deduke (2014: 35)
- Buellia aethalea (Ach.) Th. Fr. - Thomson (1997: 125)
- Buellia disciformis (Fr.) Mudd - Thomson (1997: 129), Deduke (2014: 35)
- Buellia stigmatea (Schaer.) Körb. - Thomson (1997: 140)
- Calicium abietinum Pers. - Thomson (1997: 143)
- Calicium trabinellum (Ach.) Ach. - Thomson (1997: 145)
- Calicium viride Pers. - Thomson (1997: 146)
- Caloplaca cerina (Hedw.) Th. Fr. - Thomson (1997: 154)
- Caloplaca discolor (Willey) Fink - Deduke (2014: 35)
- Caloplaca fraudans (Th. Fr.) H. Olivier - Deduke (2014: 35)
- Caloplaca stillicidiorum (Vahl) Lynge - Thomson (1997: 172)
- Caloplaca tornoensis H. Magn. - Thomson (1997: 175)
- Calvitimela aglaea (Sommerf.) Hafellner - Thomson (1997: 600 as Tephromela aglaea)
- Calvitimela armeniaca (DC. in Lam. & DC.) Hafellner - Thomson (1997: 60 as Tephromela armeniaca)
- Candelariella aurella (Hoffm.) Zahlbr. - Thomson (1997: 182)
- Candelariella canadensis H. Magn. - Westberg (2010: 121)
- Candelariella citrina Räsänen - Thomson (1997: 187 as Candelariella terrigena)
- Candelariella efflorescens R. C. Harris & W. R. Buck- Deduke (2014: 35)
- Carbonea vorticosa (Flörke) Hertel - Thomson (1997: 193)
- Catinaria atropurpurea (Schaer.) Vezda & Poelt - Deduke (2014: 35)
- Cetraria aculeata (Schreb.) Fr. - Thomson (1984: 198 as Cornicularia aculeata)
- Cetraria ericetorum Opiz - Thomson (1984: 79), Walker (2007: 88)
- Cetraria islandica (L.) Ach. - Thomson (1984: 84), Walker (2007: 88)
- Cetraria islandica (L.) Ach. subsp. crispiformis (Räsänen) Kärnefelt - Deduke (2014: 35)
- Cetraria laevigata Rass. - Thomson (1984: 88)
- Cetraria muricata (Ach.) Ach. - Thomson (1984: 200 as Cornicularia muricata), Thell et al. (2002: 286 DNA: ITS), Deduke (2014: 35)
- Cetraria nigricans (Retz.) Nyl. - Thomson (1984: 89 as Cetraria nigricans), Walker (2007: 89 as Cetraria nigricans)
- Cetrariella commixta(Nyl.) A. Thell & Kärnefelt - Thomson (1984: 75 as Cetraria commixta)
- Cetrariella delisei (Bory ex Schaer.) Kärnefelt & A. Thell - Schaerer (1850: 16 as Cetraria islandica delta delisei), Kärnefelt (1979: 68 Lectotype in Uppsala, Sweden UPS), Thomson (1984: 77 as Cetraria delisei)
- Chaenotheca brunneola (Ach.) Müll. Arg. - Deduke (2014: 35)
- Circinaria caesiocinerea (Nyl. ex Malbr.) A. Nordin, Savic & Tibell - Thomson (1997: 65 as Aspicilia caesiocinerea)
- Cladonia acuminata ( Ach.) Norrl. var. acuminata - Thomson (1984: 105), Thomson (1984: 152 as Cladonia norrlinii), Deduke (2014: 35)
- Cladonia amaurocraea (Flörke) Schaer. - Thomson (1984: 107), Walker (2007: 88)
- Cladonia arbuscula (Wallr.) Rabenh. - Thomson (1984: 110), Walker (2007: 88), Deduke (2014: 35)
- Cladonia bellidiflora (Ach.) Schaer. - Thomson (1984: 113), Walker (2007: 88)
- Cladonia borealis S. Stenroos - Deduke (2014: 35)
- Cladonia boryi Tuck. - Deduke (2014: 35)
- Cladonia botrytes (Hag.) Willd. - Thomson (1984: 114)
- Cladonia cariosa (Ach.) Spreng. - Thomson (1984: 116), Deduke (2014: 35)
- Cladonia carneola (Fr.) Fr. - Thomson (1984: 117), Deduke (2014: 35)
- Cladonia cenotea (Ach.) Schaer. - Ahti (1983: 323), Thomson (1984: 118), Deduke (2014: 35)
- Cladonia chlorophaea ( Flörke ex. Sommerf.) Spreng. - Thomson (1984: 119), Walker (2007: 89), Deduke (2014: 35)
- Cladonia coccifera (L.) Willd. - Thomson (1984: 121), Walker (2007: 88)
- Cladonia coccifera (Flörke) Spreng. - Thomson (1984: 122), Walker (2007: 89), Deduke (2014: 35)
- Cladonia coniocraea (Flörke) Spreng. - Deduke (2014: 35)
- Cladonia conista (Ach.) Robbins - Deduke (2014: 35)
- Cladonia cornuta (L.) Hoffm. subsp. cornuta - Thomson (1984: 124), Walker (2007: 88), Deduke (2014: 35)
- Cladonia crispata (Ach.) Flot. var. crispata - Ahti (1983: 323), Thomson (1984: 125), Walker (2007: 89), Deduke (2014: 35)
- Cladonia cyanipes (Somm.) Nyl. - Thomson (1984: 127)
- Cladonia deformis (L.) Hoffm. - Thomson (1984: 129), Deduke (2014: 35)
- Cladonia digitata (L.) Hoffm. - Thomson (1984: 131), Deduke (2014: 36)
- Cladonia ecmocyna Leight. subsp. ecmocyna - Thomson (1984: 132)
- Cladonia fimbriata (L.) Fr. - Thomson (1984: 133), Thomson (1984: 144 as Cladonia major), Deduke (2014: 36)
- Cladonia gracilis (L.) Willd. subsp. turbinata (Ach.) Ahti - Thomson (1984: 136), Deduke (2014: 36)
- Cladonia gracilis (L.) Willd. subsp. gracilis - Thomson (1984: 137), Walker (2007: 88)
- Cladonia gracilis (L.) Willd. subsp. elongata (Wulfen) Vain. - Deduke (2014: 36)
- Cladonia labradorica Ahti & Brodo - Ahti & Brodo (1981: 239), Walker (2007: 89)
- Cladonia macilenta Hoffm. - Deduke (2014: 36)
- Cladonia macrophylla (Schaer.) Stenham. - Thomson (1984: 141), Walker (2007: 89)
- Cladonia macrophyllodes Nyl. - Thomson (1984: 143)
- Cladonia maxima (Asah.) Ahti - Thomson (1984: 145), Deduke (2014: 36)
- Cladonia merochlorophaea Asah. - Thomson (1984: 143)
- Cladonia mitis Sandst. - Thomson (1984: 148), Walker (2007: 88), Deduke (2014: 36)
- Cladonia multiformis G. Merr. - Deduke (2014: 36)
- Cladonia ochrochlora Flörke - Deduke (2014: 36)
- Cladonia peziziformis (With.) J. R. Laundon - Deduke (2014: 36)
- Cladonia pleurota (Flörke) Schaer. - Thomson (1984: 154), Walker (2007: 89), Deduke (2014: 36)
- Cladonia pocillum (Ach.) O. Rich. - Thomson (1984: 156)
- Cladonia pyxidata (L.) Hoffm. - Thomson (1984: 158), Deduke (2014: 36)
- Cladonia rangiferina (L.) F. H. Wigg. - Ahti (1983: 323 as Cladina rangiferina), Thomson (1984: 159), Walker (2007: 88), Deduke (2014: 36)
- Cladonia rei Schaer. - Lendemer (2008: 102), Deduke (2014: 36)
- Cladonia scabriuscula (Del. in Duby) Nyl. - Thomson (1984: 160), Deduke (2014: 36), Deduke (2014: 36 as Cladonia farinacea)
- Cladonia squamosa (Scop.) Hoffm. - Thomson (1984: 161), Deduke (2014: 36)
- Cladonia stellaris (Opiz) Pouzar & Vezda - Ahti (1983: 323 as Cladina stellaris), Thomson (1984: 163), Thomson (1984: 104 as Cladonia aberrans), Walker (2007: 88), Deduke (2014: 36)
- Cladonia stricta (Nyl.) Nyl. - Thomson (1984: 164)
- Cladonia stygia (Fr.) Ruoss - Deduke (2014: 36)
- Cladonia subfurcata (Nyl.) Arn. - Thomson (1984: 166), Walker (2007: 89)
- Cladonia subulata (L.) Weber ex F. H. Wigg. - Deduke (2014: 36)
- Cladonia sulphurina (Michx.) Fr. - Thomson (1984: 169), Walker (2007: 88)
- Cladonia terrae-novae Ahti - Ahti (1960: 131 Type in Helsinki, Finland F), Ahti (1961: 81), Ahti (1993: 99), Deduke (2014: 36)
- Cladonia turgida Ehrh. ex Hoffm. - Thomson (1984: 172), Deduke (2014: 36)
- Cladonia uncialis (L.) F. H. Wigg. - Thomson (1984: 173), Walker (2007: 88), Deduke (2014: 36)
- Cladonia verticillata (Hoffm.) Schaer. - Thomson (1984: 174), Deduke (2014: 36)
- Cladonia wainioi (Asah.) Savicz - Thomson (1984: 157 as Cladonia pseudorangiformis), Deduke (2014: 36)
- Collema furfuraceum (Schaer.) Du Rietz - Deduke (2014: 36)
- Coniocybe furfuracea (L.) Ach. - Thomson (1997: 210)
- Cyphelium tigillare (Ach.) Ach. - Thomson (1997: 214)
- Dactylina arctica (Richardson) Nyl. - Thomson (1984: 203)
- Dermatocarpon miniatum (L.) W. Mann - Deduke (2014: 36)
- Dibaeis baeomyces (L. f.) Rambold & Hertel - Thomson (1984: 51 as Baeomyces roseus)
- Diploschistes muscorum (Scop.) R. Sant. - Thomson (1997: 218)
- Diploschistes scruposus (Schreb.) Norman - Thomson (1997: 218), Deduke (2014: 36)
- Diplotomma alboatrum (Hoffm.) Flot. - Thomson (1997: 127 as Buellia alboatra)
- Enchylium polycarpon (Hoffm.) Otálora, P. M. Jørg. & Wedin -Thomson (1984: 190 as Collema polycarpon)
- Evernia mesomorpha Nyl. - Deduke (2014: 36)
- Flavocetraria cucullata (Bellardi) Kärnefelt & A. Thell - Thomson (1984: 76 as Cetraria cucullata), Walker (2007: 88)
- Flavocetraria nivalis (L.) Kärnefelt & A. Thell - Thomson (1984: 92 as Cetraria nivalis), Walker (2007: 88)
- Flavoplaca citrina (Hoffm.) Arup, Frödén & Søchting - Deduke (2014: 36)
- Flavoplaca marina (Wedd.) Arup, Frödén & Søchting - Thomson (1997: 166 as Caloplaca marina)
- Fuscidea recensa (Stirt.) Hertel, V. Wirth & Vezda - Thomson (1997: 233)
- Fuscopannaria praetermissa (Nyl.) P. M. Jørg. - Thomson (1984: 320 as Parmeliella praetermissa), Lendemer (2008: 104)
- Graphis scripta (L.) Ach. - Deduke (2014: 36)
- Gyalecta friesii (A. Massal.) Körb. - Thomson (1997: 239)
- Ionaspis lacustris (With.) Lutzoni - Thomson (1997: 245 as Hymenelia lacustris)
- Hydropunctaria maura (Wahlenb.) C. Keller, Gueidan & Thüs - Thomson (1997: 640 as Verrucaria maura)
- Hypogymnia bitteri (Lynge) Ahti - Thomson (1984: 238), Walker (2007: 90)
- Hypogymnia incurvoides Rass. - Deduke (2014: 36)
- Hypogymnia physodes (L.) Nyl. - Ahti (1983: 323), Thomson (1984: 241), Walker (2007: 88)
- Hypogymnia vittata (Ach.) Gas. - Thomson (1984: 243)
- Icmadophila ericetorum (L.) Zahlbr. - Thomson (1997: 249), Walker (2007: 89)
- Imshaugia aleurites (Ach.) S. L. F. Mey. - Thomson (1984: 321 as Parmeliopsis aleurites)
- Japewia tornoensis (Nyl.) Tønsberg - Thomson (1997: 387 as Lecidea tornoensis)
- Lasallia papulosa (Ach.) Llano - Thomson (1984: 245)
- Lasallia pensylvanica (Hoffm.) Llano - Thomson (1984: 246)
- Lecanactis abietina (Ehrh. ex Ach.) Körb. - Lendemer (2008: 101)
- Lecanora albellula (Nyl.) Th. Fr. var. albellula - Thomson (1997: 299 as Lecanora piniperda)
- Lecanora allophana (Ach.) Nyl. - Thomson (1997: 266)
- Lecanora atrosulphurea (Wahlenb.) Ach. - Thomson (1997: 267)
- Lecanora cenisia Ach. - Thomson (1997: 271)
- Lecanora circumborealis Brodo & Vitik. - Thomson (1997: 274)
- Lecanora epibryon (Ach.) Ach. - Thomson (1997: 279), Lendemer (2008: 104)
- Lecanora expallens Ach. - Thomson (1997: 280)
- Lecanora fuscescens (Sommerf.) Nyl. - Thomson (1997: 282)
- Lecanora intricata (Schrad.) Ach. - Thomson (1997: 288)
- Lecanora muralis (Schreb.) Rabenh. - Thomson (1997: 295 as Lecanora muralis)
- Lecanora orae-frigidae R. Sant. - Thomson (1997: 297)
- Lecanora polytropa (Ehrh. ex Hoffm.) Rabenh. - Thomson (1997: 299)
- Lecanora straminea (Wahlenb.) Ach. - Thomson (1997: 306)
- Lecanora subintricata (Nyl.) Th. Fr. - Thomson (1997: 307)
- Lecanora symmicta (Ach.) Ach. - Thomson (1997: 309)
- Lecanora torrida Vain. - Lendemer (2008: 105)
- Lecanora varia (Hoffm.) Ach. - Thomson (1997: 311)
- Lecanora xylophila Hue - Thomson (1997: 284 as Lecanora grantii)
- Lecidea auriculata Th. Fr. - Thomson (1997: 329)
- Lecidea fuscoatra (L.) Ach. - Thomson (1997: 347)
- Lecidea helvola (Körb. ex Hellb.) Th. Fr. - Thomson (1997: 347)
- Lecidea lactea Flörke ex Schaer. - Thomson (1997: 355)
- Lecidea lapicida (Ach.) Ach. - Thomson (1997: 357), Lendemer (2008: 105)
- Lecidea lithophila (Ach.) Ach. - Thomson (1997: 362)
- Lecidea nylanderi (Anzi) Th. Fr. - Thomson (1997: 365)
- Lecidea paupercula Th. Fr. - Thomson (1997: 369)
- Lecidea plana (J. Lahm) Nyl. - Thomson (1997: 372)
- Lecidea ramulosa Th. Fr. - Thomson (1997: 376)
- Lecidea tessellata Flörke - Thomson (1997: 384)
- Lecidea turgidula Fr. - Thomson (1997: 388)
- Lecidella carpathica Körb. - Thomson (1997: 395)
- Lecidella viridans (Flot.) Körb. - Thomson (1997: 401)
- Lecidoma demissum (Rutstr.) Gotth. Schneider & Hertel - Thomson (1997: 405)
- Lepra dactylina (Ach.) Hafellner - Thomson (1997: 453 as Pertusaria dactylina), Walker (2007: 89 as Pertusaria dactylina)
- Leptogium saturninum (Dicks.) Nyl. - Thomson (1984: 262)
- Lichenomphalia hudsoniana (H. S. Jenn.) Redhead, Lutzoni, Moncalvo & Vilgalys - Thomson (1984: 196 as Coriscium viride)
- Lithographa tesserata (DC. in Lam. & DC.) Nyl. - Thomson (1997: 408)
- Lobaria pulmonaria (L.) Hoffm. - Walker (2007: 88)
- Lobarina scrobiculata (Scop.) Nyl. ex Cromb. - Thomson (1984: 271 as Lobaria scrobiculata), Lendemer (2008: 101 as Lobaria scrobiculata)
- Lopadium pezizoideum (Ach.) Körb. - Thomson (1997: 411)
- Masonhalea richardsonii (Hook.) Kärnefelt - Walker (2007: 88)
- Massalongia carnosa (Dicks.) Körb. - Thomson (1984: 274)
- Melanelia hepatizon (Ach.) A. Thell - Thomson (1984: 82 as Cetraria hepatizon)
- Melanelixia subaurifera (Nyl.) O. Blanco et al. - Thomson (1984: 316 as Parmelia subaurifera)
- Melanohalea exasperatula (Nyl.) O. Blanco et al. - Thomson (1984: 300 as Parmelia exasperatula)
- Melanohalea infumata (Nyl.) O. Blanco et al. - Thomson (1984: 304 as Parmelia infumata)
- Melanohalea olivacea (L.) O. Blanco et al. - Thomson (1984: 306 as Parmelia olivacea)
- Melanohalea septentrionalis (Lynge) O. Blanco et al. - Thomson (1984: 311 as Parmelia septentrionalis)
- Micarea denigrata (Fr.) Hedl. - Thomson (1997: 415)
- Micarea melaena (Nyl.) Hedl. - Thomson (1997: 419)
- 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)
- Mycobilimbia berengeriana (A. Massal.) Hafellner & V. Wirth - Thomson (1997: 331 as Lecidea berengeriana)
- Mycobilimbia carneoalbida (Müll. Arg.) S. Ekman & Printzen - Thomson (1997: 110 as Bacidia sphaeroides)
- Mycobilimbia tetramera (De Not.) Vitik., Ahti, Kuusinen, Lommi & T. Ulvinen ex Hafellner & Türk - Thomson (1997: 422 as Mycobilimbia obscurata)
- Mycoblastus alpinus (Fr.) Kernst. - Thomson (1997: 425)
- Mycoblastus sanguinarius (L.) Norman - Ahti (1983: 323), Thomson (1997: 426)
- Myriolecis dispersa (Pers.) Sliwa, Zhao Xin & Lumbsch - Thomson (1997: 278 as Lecanora dispersa)
- Myriolecis hagenii (Ach.) Sliwa, Zhao Xin & Lumbsch - Thomson (1997:286 as Lecanora hagenii)
- Myriospora smaragdula (Wahlenb. ex Ach.) K. Knudsen & B. Abbott - Thomson (1997: 34 as Acarospora smaragdula), Knudsen (2007: 95 as Acarospora smaragdula)
- Nephroma arcticum (L.) Torss. - Thomson (1984: 277), Walker (2007: 89)
- Nephroma bellum (Spreng.) Tuck. - Thomson (1984: 278)
- Nephroma helveticum Ach. var. helveticum - Thomson (1984: 280)
- Nephroma parile (Ach.) Ach. - Thomson (1984: 282)
- Nephroma resupinatum (L.) Ach. - Thomson (1984: 283)
- Ochrolechia androgyna (Hoffm.) Arnold - Thomson (1997: 430), Walker (2007: 89)
- Ochrolechia frigida (Sw.) Lynge - Thomson (1997: 431), Walker (2007: 89)
- Ochrolechia inaequatula (Nyl.) Zahlbr. - Thomson (1997: 434)
- Ophioparma lapponica (Räsänen) Hafellner & Rogers - Thomson (1997: 440)
- Orphniospora moriopsis (A. Massal) D. Hawksw. - Thomson (1997: 441)
- Parmelia fraudans (Nyl.) Nyl. - Thomson (1984: 302)
- Parmelia omphalodes (L.) Ach. - Thomson (1984: 308), Lendemer (2008: 103)
- Parmelia saxatilis (L.) Ach. - Ahti (1983: 323), Thomson (1984: 310), Lendemer (2008: 102)
- Parmelia squarrosa Hale - Thomson (1984: 313)
- Parmelia sulcata Tayl. - Ahti (1983: 323), Thomson (1984: 318), Walker (2007: 88), Lendemer (2008: 102)
- Parmeliella triptophylla (Ach.) Mü. Arg. - Thomson (1984: 321)
- Parmeliopsis ambigua (Wulf.) Nyl. - Ahti (1983: 323), Thomson (1984: 325), Walker (2007: 90)
- Parmeliopsis hyperopta (Ach.) Arn. - Thomson (1984: 326), Walker (2007: 90)
- Parvoplaca tiroliensis (Zahlbr.) Arup, Søchting & Frödén - Thomson (1997: 173 as Caloplaca tiroliensis)
- Peltigera aphthosa (L.) Willd. - Ahti (1983: 323), Thomson (1984: 329), Walker (2007: 88)
- 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 hymenina (Ach.) Delise - Lendemer (2008: 102)
- 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), Walker (2007: 89)
- Peltigera membranacea (Ach.) Nyl. - Thomson (1984: 340)
- Peltigera polydactylon (Neck.) Hoffm. - Thomson (1984: 343)
- Peltigera rufescens (Weiss) Humb. - Thomson (1984: 333 as Peltigera canina var. rufescens)
- Peltigera scabrosa Th. Fr. - Thomson (1984: 344), Walker (2007: 89)
- Peltigera venosa (L.) Baumg. - Thomson (1984: 345)
- Pertusaria alpina Hepp ex Ahles - Thomson (1997: 447)
- 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 panyrga (Ach.) A. Massal. - Thomson (1997: 459), Walker (2007: 89)
- Pertusaria subobducens Nyl. - Thomson (1997: 462)
- Pertusaria waghornei Hulting - Hulting (1896: 191 Type )
- Phaeophyscia sciastra (Ach.) Moberg - Thomson (1984: 349)
- Physcia adscendens H. Olivier - Thomson (1984: 352)
- Physcia aipolia (Ehrh. ex Humb.) Fürnr. - Thomson (1984: 353), Walker (2007: 90)
- Physcia caesia (Hoffm.) Hampe ex Fürnr. - Thomson (1984: 354)
- Physcia dubia (Hoffm.) Lettau - Thomson (1984: 355)
- Physcia tenella (Scop.) DC. subsp. marina (A. Nyl.) D. Hawksw. - Thomson (1984: 357 as Physcia subobscura)
- Physconia muscigena (Ach.) Poelt - Thomson (1984: 360)
- Pilophorus cereolus (Ach.) Th. Fr. in Hellbom - Thomson (1984: 362)
- Plastimatia glauca (L.) W. L. Culb. & C. F. Culb. - Thomson (1984: 368), Walker (2007: 90)
- Polyblastia bryophila Lönnr. - Thomson (1997: 477)
- Polyblastia hyperborea Th. Fr. - Thomson (1997: 481)
- Polyblastia theleodes (Sommerf.) Th. Fr. - Thomson (1997: 484)
- Polycauliona verruculifera (Vain.) Arup, Frödén & Søchting -Thomson (1997: 177 as Caloplaca verruculifera)
- Polychidium muscicola (Sw.) Gray - Thomson (1984: 370)
- Porpidia flavocoerulescens (Hornem.) Hertel & Schwab - Thomson (1997: 491 as Porpidia flavicunda), Thomson (1997: 492)
- Porpidia soredizodes (Nyl. ex Lamy) J. R. Laundon - Fryday et al. (2007: 4)
- Protoblastenia rupestris (Scop.) Steiner - Thomson (1997: 503)
- Protomicarea limosa Ach. - Thomson (1997: 361 as Lecidea limosa)
- Protopannaria pezizoides (Web.) P. M. Jørg. & S. Ekman - Thomson (1984: 294 as Pannaria pezizoides)
- Protoparmelia badia (Hoffm.) Hafellner - Thomson (1997: 269 as Lecanora badia), Lendemer (2008: 105)
- Pseudephebe minuscula (Nyl. ex Arnold) Brodo & D. Hawksw. - Thomson (1984: 373)
- Pseudephebe pubescens (L.) M. Choisy - Thomson (1984: 374)
- Psoroma hypnorum (Vahl) Gray - Thomson (1984: 375)
- Pycnothelia papillaria (Ehrh.) Duf. - Thomson (1984: 377)
- Ramalina dilacerata (Hoffm.) Hoffm. - Walker (2007: 90)
- Ramalina farinacea (L.) Ach. - Lendemer (2008: 104)
- Ramalina intermedia (Del. ex Nyl.) Nyl. - Thomson (1984: 379)
- Ramalina roesleri (Hoechst. ex Schaer.) Hue - Thomson (1984: 233 as Fistulariella 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 concentricum (Davies) Beltr. - Thomson (1997: 529)
- Rhizocarpon copelandii (Körb.) Th. Fr. - Thomson (1997: 531)
- Rhizocarpom distinctum Th. Fr. - Thomson (1997: 532)
- Rhizocarpon eupetraeum (Nyl.) Arnold - Thomson (1997: 533)
- Rhizocarpon geminatum Körb. - Thomson (1997: 537)
- Rhizocarpon geographicum (L.) DC. - Thomson (1997: 538)
- Rhizocarpon grande (Flörke ex Flotow) Arnold - Thomson (1997: 539)
- Rhizocarpon macrosporum Räsänen - Thomson (1997: 543)
- Rhizocarpon microsporum Lynge - Thomson (1997: 545)
- Rhizocarpon polycarpum (Hepp) Th. Fr. - Thomson (1997: 546)
- Rhizocarpon riparium Räsänen - Thomson (1997: 548)
- Rhizocarpon superficiale (Schaer.) Vain. - Thomson (1997: 551)
- 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), Lendemer (2008: 106 as Xanthoria elegans)
- Schaereria fuscocinerea (Nyl.) Clauzade & Cl. Roux - Lendemer (2008: 102)
- Schaereria tenebrosa (Flot.) Hertel & Poelt - Thomson (1997: 584)
- Scoliciosporum umbrinum (Ach.) Arnold - Thomson (1997: 585)
- Siphula ceratites (Wahlenb.) Fr. - Thomson (1984: 384)
- 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), Walker (2007: 89), Lendemer (2008: 101)
- Sporastatia polyspora (Nyl.) Grumm. - Thomson (1997: 588)
- Stereocaulon alpinum Laur. - Thomson (1984: 400)
- Stereocaulon arcticum Lynge - Thomson (1984: 402)
- Stereocaulon botryosum Ach. em. Frey - Thomson (1984: 405)
- Stereocaulon condensatum Hoff. - Thomson (1984: 407)
- Stereocaulon dactylophyllum Flörke - Thomson (1984: 410), Walker (2007: 89)
- Stereocaulon grande (Magn.) Magn. - Thomson (1984: 413), Walker (2007: 89)
- Stereocaulon paschale (L.) Hoffm. - Ahti (1983: 323), Thomson (1984: 418), Walker (2007: 88)
- 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 Fr. - Thomson (1984: 428), Lendemer (2008: 102)
- Stereocaulon vesuvianum Pers. - Thomson (1984: 430)
- Tephromela atra (Huds.) Hafellner - Thomson (1997: 633)
- Thelidium absconditum (Hepp) Rabenh. - Thomson (1997: 605)
- Theledium minutulum Körb. - Thomson (1997: 605)
- Theledium papulare (Fr.) Arnold - Thomson (1997: 607)
- Thelocarpon epibolum Nyl. - Thomson (1997: 609)
- Trapelia coarctata (Turner ex Sm. & Sow.) M. Choisy - Thomson (1997: 621)
- Trapeliopsis flexuosa (Fr.) Coppins & James - Thomson (1997: 623)
- Tremolecia atrata (Ach.) Hertel - Thomson (1997: 627), Lendemer (2008: 105)
- Tuckermannopsis americana (Sprengel) Hale - Thomson (1984: 81 as Cetraria halei)
- Tuckermannopsis chlorophylla (Willd.) Hale - Thomson (1984: 73 as Cetraria chlorophylla), Walker (2007: 90 as Cetraria chlorophylla)
- Tuckermannopsis ciliaris (Ach.) Gyeln. - Walker (2007: 88)
- Tuckermannopsis sepincola (Ehrh.) Hale - Thomson (1984: 94 as Cetraria sepincola), Walker (2007: 90 as Cetraria sepincola)
- Umbilicaria arctica (Ach.) Nyl. - Thomson (1984: 444)
- Umbilicaria cylindrica (L.) Del. in Duby - Thomson (1984: 448)
- Umbilicaria deusta (L.) Baumg. - Thomson (1984: 449)
- Umbilicaria havaasii Llano - Thomson (1984: 450)
- Umbilicaria hyperborea (Ach.) Hoffm. - Ahti (1983: 323), Thomson (1984: 453), Walker (2007: 88)
- Umbilicaria muehlenbergii (Ach.) Tuck. - Thomson (1984: 26 as Actinogyra muehlenbergii)
- Umbilicaria phaea Tuck. - Thomson (1984: 455)
- Umbilicaria polaris (Schol.) Zahlbr. - Thomson (1984: 289 erroneously 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 dasypoga (Ach.) Röhl. - Thomson (1984: 465)
- Usnea filipendula - Walker (2007: 90)
- Usnea subfloridana Stirt. - Thomson (1984: 469)
- Varicellaria rhodocarpa (Körb.) Th. Fr. - Thomson (1997: 629)
- Verrucaria ceuthocarpa Wahlenb. - Thomson (1997: 635)
- Verrucaria erichsenii Zschacke - Thomson (1997: 637)
- Verrucaria nigrescens Pers. - Thomson (1997: 642)
- Verrucaria rupestris Schrad. - Thomson (1997: 643)
- Vulpicida pinastri (Scop.) J.-E. Mattsson & M. J. Lai - Thomson (1984: 93 as Cetraria pinastri), Walker (2007: 90)
- Wahlenbergiella striatula (Wahlenb.) Gueidan & Thüs - Thomson (1997: 645 as Verrucaria striatula)
- Xylographa abietina (Pers.) Zahlbr. - Thomson (1997: 646)