Lichenized Fungi of the Pacific Northwest
Not assigned to family
Not assigned to family
Generated from PNW Herbaria database
November 28, 2020.
430 genus names
2,371 species/infraspecies names
(names highlighted in brown could not be resolved to an accepted name)
Index to Genera:
A: Abrothallus, Acarospora, Acolium, Acroscyphus, Acrospora, Actinogyra, Adelolecia, Agonimia, Agyrium, Ahtiana, Alectoria, Allanthoparmelia, Allantoparmelia, Allarthonia, Allocetraria, Alyxoria, Amandinea, Amygdalaria, Anamylopsora, Anaptychia, Anisomeridium, Anzina, Arctocetraria, Arctomia, Arctoparmelia, Arthonia, Arthophacopsis, Arthopyrenia, Arthothelium, Arthropyrenia, Arthrorhaphis, Asahinae, Asahinea, Aspicilia, Aspilidea, Athallia
B: Bacidea, Bacidia, Bacidina, Bactrospora, Baculifera, Baeomyce, Baeomyces, Bellemerea, Biatora, Biatorella, Biatoropsis, Bilimbia, Blastenia, Botryolepraria, Brigantea, Brigantiaea, Brodoa, Bryocaulon, Bryonora, Bryoria, Buellia, Bunodophoron, Byssoloma
C: Caliciium, Calicium, Caloplaca, Calvitimela, Candelaria, Candelariella, Candellariella, Carbonea, Carbonicola, Catapyrenium, Catillaria, Catinaria, Catolechia, Catraria, Cavernularia, Cercidospora, Cetralia, Cetraria, Cetrariella, Cetraris, Cetrelia, Chaenotheca, Chaenothecopsis, Cheiromycina, Chromatochlamys, Chrysothrix, Cladidium, Cladina, Cladonia, Clauzadea, Clauzadeana, Cliostomum, Coccocarpia, Coccotrema, Coelocaulon, Coenogonium, Collema, Collemopsidium, Cornicularia, Cornicularis, Corticifraga, Cresponea, Crocynia, Cryptothele, Cybebe, Cypheliium, Cyphelium, Cystocoleus
D: Dactylina, Dactylospora, Dendriscocaulon, Dendrographa, Dermatina, Dermatocarpon, Dermotocarpon, Dibaeis, Didymosphaeria, Dimelaena, Diploschiste, Diploschistes, Diplotomma
E: Endocarpon, Eopyrenula, Ephebe, Epigloea, Epilichen, Erioderma, Esslingeriana, Esslingeriona, Euopsis, Evernia
F: Farnoldia, Fellhanera, Fellhaneropsis, Fissurina, Fistulariella, Flavocetraria, Flavoparmelia, Flavopunctelia, Foraminella, Frutidella, Fulgensia, Fuscidea, Fuscopannaria
H: Haematomma, Hafellia, Halecania, Haplocarpon, Helocarpon, Heppia, Herteliana, Hertelidea, Heterodermia, Heteroplacidium, Hydropunctaria, Hydrotheria, Hymenelia, Hypocenomyce, Hypogymnia, Hypogymniu, Hypopymnia, Hypotrachya, Hypotrachyna
J: Japewia
L: Lambiella, Lasallia, Lecanactis, Lecania, Lecanographa, Lecanora, Lecidea, Lecidella, Lecidoma, Leciographa, Leciophysma, Leioderma, Lemmopsis, Lempholemma, Lepidoma, Leprapia, Lepraria, Leprocaulon, Leproloma, Leptochidium, Leptogium, Letharia, Leucocarpia, Lichenoconium, Lichenomphalia, Lichenostigma, Lichenothelia, Lichinella, Lichinodium, Lithographa, Llimonaea, Lobaria, Lobothallia, Lopadium, Lopezaria, Lopodium, Loxospora, Loxosporopsis, Loxosporospsis
M: Manolangia, Masonhalea, Masontralea, Massalongia, Megalaria, Megaspora, Melanelia, Melanelis, Melanelixia, Melanella, Melanohalea, Melanomma, Menegazzia, Metamelanea, Micarea, Microcalicium, Microlychnus, Miriquidica, Moelleropsis, Muellerella, Mycobilimbia, Mycoblastus, Mycocalicium, Mycoglaena, Mycomicrothelia, Mycoporum, Mykoblastus, Myochroidea, Myriolecis, Myxobilimbia
P: Palicella, Pannaria, Par, Paraphysothele, Parmelia, Parmeliella, Parmeliopsis, Parmotrema, Parmotremopsis, Peccania, Pelitgera, Peltigera, Peltigeria, Peltula, Pertusaria, Phacopsis, Phaeocalicium, Phaeographis, Phaeophyscia, Phaeopyxis, Phaeorrhiza, Phaeosporobolus, Phaephyscia, Phlyctis, Phyconia, Phylliscum, Physalospora, Physcia, Physciella, Physconia, Pilophoron, Pilophorus, Placidiopsis, Placidium, Placopsis, Placopyrenium, Placynthiella, Placynthium, Plastimatia, Platismatia, Plectocarpon, Pleopsidium, Pletigera, Polyblastia, Polycauliona, Polychidium, Polycoccum, Polysporina, Porina, Porocyphus, Porpidia, Pronectria, Protoblastenia, Protoblastonia, Protomicarea, Protopannaria, Protoparmelia, Pseudephebe, Pseudocyphellaria, Pseudocyphellaris, Pseudophebe, Pseudosagedia, Psilolechia, Psora, Psoroma, Psorotichia, Psorula, Ptychographa, Punctelia, Pycnora, Pycnothelia, Pyrenocollema, Pyrenula, Pyrgidium, Pyrrhospora
R: Racodium, Ramalina, Ramboldia, Rhagadostoma, Rhizocarpon, Rhizoplaca, Rimularia, Rinodina, Ropalospora, Rusavskia
S: Sagiolechia, Sarcogyne, Sarcopyrenia, Sarcosagium, Sarea, Schadonia, Schaereria, Sclerophora, Scoliciosporum, Scutula, Scytinium, Segestria, Sigridea, Siphula, Solorina, Sphaerophhorus, Sphaerophorous, Sphaerophorus, Spilonema, Spilonemella, Sporastatia, Sporodictyon, Squamarina, Staurothele, Steinia, Stenocybe, Stereocaula, Stereocaulon, Sterocaulon, Sticta, Stigmidium, Strangospora, Sulcaria, Synalissa, Szczawinskia
T: Teloschistes, Tephrolema, Tephromela, Tetramelas, Texosporium, Thamnolia, Thamolia, Thelenella, Thelidium, Thelocarpon, Thelomma, Thelopsis, Thelotrem, Thelotrema, Thelotrima, Thermutis, Tholurna, Thornula, Thrombium, Thyrea, Toninia, Trapelia, Trapeliopsis, Tremolecia, Trimmatothele, Tuckermanella, Tuckermaniopsis, Tuckermanniopsis, Tuckermannopsis, Tylothallia
W: Waynea
Abrothallus bertianus (BC; 1; 1994)
Abrothallus cetrariae (OR, WA; 3; 1996-1997)
Abrothallus parmeliarum (BC, ID; 3; 1984-1997)
Acarospora americana (ID, MT, OR, WA; 8; 1897-1992)
Acarospora amphibola (AK; 1; 1948)
Acarospora badiofusca (ID, WA; 3; 1970-1983)
Acarospora bullata (ID, OR; 2; 1977-1978)
Acarospora cervina (AK, WA; 5; 1925-1993)
Acarospora cholorphana (BC; 1; 1975)
Acarospora complanata (WA; 2; 1885-1983)
Acarospora epilutescens (WA; 1; 1983)
Acarospora fuscata (AK, BC, ID, MT, OR, WA; 73; 1931-2012)
Acarospora glaucocarpa (BC, ID, MT, OR, WA; 8; 1971-2009)
Acarospora hilaris (ID; 1; 1976)
Acarospora impressula (AK, WA; 4; 1983-1992)
Acarospora macrospora (AK, BC; 2; 1976-1993)
Acarospora moenium (OR; 1; 2010)
Acarospora obpallens (ID, OR; 2; 2010)
Acarospora peliscypha (AK, WA; 3; 1993-1996)
Acarospora schleicheri (AK, BC, ID, MT, OR, WA; 70; 1910-2019)
Acarospora scotica (WA; 2; 1979-1982)
Acarospora sinopica (WA; 2; 1982-2001)
Acarospora smaragdula (AK, ID, WA; 18; 1957-1996)
var. rufescens (WA; 2; 1982-1983)
Acarospora stapfiana (ID; 1; 1987)
Acarospora strigata (ID, MT, WA; 20; 1941-2007)
Acarospora terricola (ID, WA; 3; 2013-2017)
Acarospora thamnina (OR, WA; 4; 1995-2014)
Acarospora veronensis (AK, OR, WA; 3; 1941-1997)
Acarospora washingtonensis (WA; 2; 1931)
Acolium inquinans (OR; 2; 1976-1978)
Acroscyphus sphaerophoroides (AK, BC, WA; 4; 1992-2011)
Acrospora schleicheri (BC; 1; 1964)
Actinogyra muhlenbergii (BC; 2; 1975)
Actinogyra polyrrhiza (BC, WA; 4; 1914-1973)
Adelolecia kolaensis (AK, BC, WA; 7; 1913-2000)
Adelolecia pilati (AK, WA; 7; 1959-2000)
Agonimia gelatinosa (AK; 1; 1985)
Agonimia tristicula (BC, MT, OR; 10; 1978-2001)
Agyrium elongatum (WA; 1; 1883)
Agyrium rufum (BC, OR, WA; 5; 1995-2012)
Ahtiana pallidula (BC, ID, MT, OR, WA; 395; 1900-2015)
Ahtiana sphaerosphorella (BC; 3; 1985-1995)
Ahtiana sphaerosporella (BC, ID, MT, OR, WA; 215; 1970-2015)
Alectoria imshaugii (AK, ID, MT, OR, WA; 1294; 1962-2015)
Alectoria lata (OR, WA; 18; 1979-2001)
Alectoria nigricans (AK, BC, WA, YK; 167; 1800-2014)
Alectoria ochroleuca (AK, BC, YK; 229; 1800-2019)
var. rigida (BC; 2; 1916-1923)
Alectoria sarmentosa (AK, BC, ID, MT, OR, WA; 3625; 1888-2019)
ssp. sarmentosa (AK, BC, ID, MT, WA; 19; 1905-2002)
ssp. vexillifera (AK, BC, MT, OR, WA; 14; 1899-2009)
Alectoria trichodes (BC; 3; 1961-1970)
Alectoria vancouverensis (BC, OR, WA; 178; 1914-2015)
Allanthoparmelia alpicola (BC; 1; 1981)
Allantoparmelia almquistii (AK, BC, YK; 33; 1800-2007)
Allantoparmelia alpicola (AK, BC, MT, WA; 62; 1800-2015)
Allarthonia phaeobaea (AK; 2; 1951-1955)
Allocetraria madreporiformis (AK, BC, MT, YK; 18; 1800-2011)
Alyxoria varia (WA; 1; 2013)
Amandinea adjuncta (AK; 1; 1992)
Amandinea cacuminum (AK; 4; 1992-1993)
Amandinea dakotensis (WA; 2; 1978-1983)
Amandinea polyspora (BC; 1; 1974)
Amandinea punctata (AK, BC, ID, MT, OR, WA; 87; 1912-2017)
Amygdalaria consentiens (AK, BC, WA; 10; 1971-2013)
var. consentiens (BC; 1; 1971)
var. japonica (BC; 1; 1988)
Amygdalaria continua (AK, BC; 4; 1967-2013)
Amygdalaria elegantior (AK, YK; 10; 1948-1994)
Amygdalaria haidensis (AK; 1; 1993)
Amygdalaria panaeola (AK, BC, WA; 34; 1800-2012)
Amygdalaria pelobotrya (BC; 1; 1967)
Amygdalaria pelobotryon (AK, OR; 9; 1951-2012)
Amygdalaria subdissentiens (AK, BC; 10; 1967-2013)
Anamylopsora pulcherrima (AK; 1; 1951)
Anaptychia bryorum (AK; 5; 1800-2014)
Anaptychia elbursiana (AK, ID, WA; 5; 1800-2007)
Anaptychia palmulata (ID; 1; 1972)
Anaptychia setifera (AK, BC, OR; 20; 1966-2000)
Anaptychia ulotrichoides (BC, MT; 5; 1993-1994)
Anisomeridium carinthiacum (WA; 1; 1979)
Anzina carneonivea (BC, WA; 2; 1996)
Arctocetraria andrejevii (AK; 48; 1800-2007)
Arctocetraria nigricascens (AK; 1; 1958)
Arctomia delicatula (AK, BC; 3; 1964-2015)
Arctoparmelia centrifuga (AK, BC, WA; 67; 1800-2016)
Arctoparmelia incurva (AK, BC, WA; 25; 1800-2013)
Arctoparmelia separata (AK, BC, YK; 84; 1800-2015)
Arctoparmelia subcentifriga (BC; 2; 1981-1992)
Arctoparmelia subcentrifuga (BC, MT; 7; 1975-2001)
Arthonia arthonioides (AK, BC, OR, WA; 4; 1975-2008)
Arthonia caerulescens (OR; 1; 2001)
Arthonia complanata (WA; 1; 1908)
Arthonia dispersa (BC, WA; 4; 1974-1982)
Arthonia excedens (AK, WA; 11; 1931-1979)
Arthonia exilis (BC; 2; 1994-1995)
Arthonia glebosa (BC, ID, MT, OR, WA, YK; 55; 1977-2017)
Arthonia hypobela (BC; 1; ?)
Arthonia ilicina (BC; 6; 1964-1974)
Arthonia ilicinum (OR; 6; 1996)
Arthonia lapidicola (BC, OR; 4; 1974-2013)
Arthonia patellulata (MT, YK; 4; 1977-1983)
Arthonia phaeobaea (AK, BC, WA; 17; 1955-1982)
Arthonia polygramma (BC; 1; 1974)
Arthonia polymorpha (WA; 1; 1913)
Arthonia pruinata (AK, WA; 8; 1906-2006)
Arthonia punctiformis (WA; 2; 1995-1996)
Arthonia radiata (BC, WA; 14; 1906-2001)
Arthophacopsis parmeliarum (WA; 1; 1996)
Arthopyrenia analepta (AK; 7; 1992-1993)
Arthopyrenia analeptella (WA; 1; 1979)
Arthopyrenia cerasi (WA; 3; 1931-1979)
Arthopyrenia elegans (WA; 4; 1978-1979)
Arthopyrenia halodytes (BC, WA; 19; 1969-1979)
Arthopyrenia hulodytes (BC; 1; 1977)
Arthopyrenia orustensis (WA; 7; 1978-1979)
Arthopyrenia padi (BC; 2; 1974)
Arthopyrenia plumbaria (OR; 3; ?)
Arthopyrenia punctiformis (AK, BC, OR, WA; 6; 1885-2012)
Arthothelium dispersum (AK; 1; 1950)
Arthothelium macounii (BC; 3; 1974)
Arthothelium spectabile (BC, OR, WA; 13; 1906-1982)
Arthropyrenia padi (BC; 1; 1967)
Arthrorhaphis aeruginosa (WA; 1; 1999)
Arthrorhaphis alpina (AK, BC; 8; 1970-2015)
Arthrorhaphis citrinella (AK, ID, MT, OR; 10; 1979-2019)
Asahinae scholanderi (BC; 1; 1975)
Asahinea chrysantha (AK, BC, YK; 77; 1800-2019)
Asahinea scholanderi (AK, BC, YK; 73; 1800-2015)
Aspicilia aliena (WA; 1; 1996)
Aspicilia americana (ID, MT, OR; 7; 1976-2016)
Aspicilia anseris (AK; 1; 1958)
Aspicilia aquatica (AK, BC, ID, MT; 10; 1976-1991)
Aspicilia arctica (ID; 1; 1990)
Aspicilia caesiocinerea (AK, BC, ID, OR, WA; 15; 1951-1998)
Aspicilia caesiopruinosa (AK, ID, MT; 9; 1979-1986)
Aspicilia calcarea (AK, ID, MT, OR, WA, YK; 11; 1914-1998)
Aspicilia cinerea (AK, BC, ID, MT, OR, WA, YK; 79; 1892-2001)
Aspicilia cingulata (MT; 1; 1984)
Aspicilia contorta (BC, ID, MT, OR, WA; 15; 1956-2016)
Aspicilia desertorum (ID, OR; 26; 1971-2010)
Aspicilia filiformis (ID, OR, WA; 71; 1977-2019)
Aspicilia fimbriata (AK; 3; 1958)
Aspicilia fruticulosa (ID, OR; 7; 1987-2010)
Aspicilia gibbosa (AK, OR, WA; 12; 1885-2015)
Aspicilia laxula (BC; 1; 1967)
Aspicilia leprosescens (BC, WA; 10; 1974-1980)
Aspicilia limitata (WA; 1; 1926)
Aspicilia mastrucata (BC, OR, WA; 10; 1982-2013)
Aspicilia nordlandica (WA; 1; 1982)
Aspicilia perradiata (WA; 1; 1997)
Aspicilia plicigera (AK; 4; 1976)
Aspicilia quartzitica (ID; 1; 1995)
Aspicilia reptans (BC, ID, MT, OR, WA; 63; 1978-2013)
Aspicilia ryrkaipiae (AK, YK; 3; 1967-1980)
Aspicilia subplicigera (MT; 1; 1985)
Aspicilia supertegens (BC, ID, MT, WA; 7; 1969-2000)
Aspicilia verrucigera (BC, ID; 2; 1967-1981)
Aspilidea myrinii (AK, WA; 7; 1979-2002)
Athallia pyracea (ID, WA; 4; 1913-1992)
Bacidea herrei (BC; 1; 1975)
Bacidea sphaeroides (BC; 1; 1978)
Bacidia acerina (BC; 1; 1976)
Bacidia arceutina (BC, OR, WA; 10; 1914-1999)
Bacidia bagliettoana (AK, MT, WA; 4; 1978-2000)
Bacidia biatorina (WA; 1; ?)
Bacidia carneoalba (BC; 1; 1995)
Bacidia cinnabarina (BC; 2; 1982)
Bacidia circumspecta (OR, WA; 5; 1996-2002)
Bacidia friesiana (AK, OR; 2; 1996-2015)
Bacidia illudens (AK; 1; 2012)
Bacidia laurocerasi (ID, MT, OR, WA; 5; 1884-1991)
ssp. idahoensis (ID, WA; 2; 1884-1991)
Bacidia microcarpa (WA; 2; 1998)
Bacidia polychroa (WA; 1; 1882)
Bacidia rubella (OR, WA; 2; 1885-2000)
Bacidia salmonea (OR; 1; 1997)
Bacidia scopulicola (BC, WA; 2; 1981)
Bacidia subincompta (MT; 1; 2007)
Bacidina arceutina (OR; 1; 1996)
Bacidina delicata (BC; 1; 1994)
Bacidina egenula (BC; 1; ?)
Bacidina inundata (OR, WA; 7; 1979-2001)
Bactrospora cascadensis (AK, WA; 4; 2005-2014)
Bactrospora dryina (BC; 1; 1995)
Bactrospora patellarioides (AK, BC; 2; 1975-1993)
Baculifera curtisii (BC; 1; 1974)
Baeomyce rufus (BC; 3; 1981-1996)
Baeomyces carneus (AK, BC; 4; 1991-2014)
Baeomyces fungoides (OR; 1; 1982)
Baeomyces placophyllus (AK, BC, YK; 16; 1956-2014)
Baeomyces rufus (AK, BC, ID, MT, OR, WA; 131; 1948-2015)
Bellemerea alpina (AK, BC, ID, MT, OR, WA; 24; 1800-2012)
Bellemerea cinereorufescens (AK, BC, MT, OR, WA; 24; 1958-2001)
Bellemerea diamarta (MT; 1; 1984)
Bellemerea sanguinea (MT, OR, WA; 4; 1883-1978)
Bellemerea subsorediza (WA; 8; 1978-2002)
Biatora alaskana (AK; 1; 2001)
Biatora aureolepra (ID; 1; 2004)
Biatora botryosa (WA; 1; 1995)
Biatora cuprea (AK, WA; 3; 1961-1981)
Biatora flavopunctata (BC, WA; 14; 1991-2012)
Biatora globulosa (BC, WA; 5; 1914-1980)
Biatora helvola (AK, BC, WA; 6; 1982-2002)
Biatora hypnophila (MT; 2; ?)
Biatora hypophaea (BC; 1; 1995)
Biatora meiocarpa (WA; 1; 2005)
var. tacomensis (WA; 1; 2005)
Biatora porphyrospoda (ID; 1; 1991)
Biatora rufidula (BC, OR; 6; 1975-2001)
var. nobilis (BC; 4; 1975)
Biatora subduplex (AK; 2; 1973-1978)
Biatora toensbergii (AK, OR, WA; 5; 1907-2011)
Biatora turgidula (ID, WA; 12; 1978-2012)
Biatora vacciniicola (AK, BC, WA; 6; 1989-2001)
Biatora vernalis (AK, BC, MT, OR, WA; 22; 1913-2014)
Biatorella contigua (AK; 1; ?)
Biatorella hemisphaerica (OR, WA; 2; 1883-1970)
Biatoropsis usnearum (BC; 1; 2000)
Bilimbia artyta (WA; 2; 1947-1949)
Blastenia atrosanguinea (BC; 1; 1966)
Botryolepraria lesdainii (AK, ID; 3; 1995-2003)
Brigantea fuscolutea (BC; 2; 1961)
Brigantiaea fuscolutea (AK, BC; 8; 1993-2013)
Brigantiaea leucoxantha (WA; 1; 1956)
Brigantiaea praetermissa (BC, MT, OR; 8; 1966-2000)
Brodoa oroarctica (AK, BC, ID, MT, WA, YK; 79; 1800-2015)
Bryocaulon divergens (AK, BC, OR, WA, YK; 158; 1800-2019)
Bryocaulon pseudosatoanum (AK, BC; 30; 1967-2009)
Bryonora castanea (AK, BC, MT, WA; 10; 1981-2004)
Bryonora curvescens (AK; 2; 1976-1978)
Bryonora pruinosa (BC, MT, WA; 3; 1991-1994)
Bryoria bicolor (AK, BC, OR, WA; 148; 1948-2015)
Bryoria capillaris (AK, BC, ID, MT, OR, WA; 1883; 1800-2015)
Bryoria carlottae (AK; 17; 1990-2003)
Bryoria cervinula (AK, BC; 27; 1971-2007)
Bryoria chalybeiformis (AK, BC, ID, MT, OR, WA; 22; 1950-2007)
Bryoria fremontii (AK, BC, ID, MT, OR, WA; 1890; 1800-2015)
Bryoria friabilis (AK, BC, ID, OR, WA; 509; 1950-2015)
Bryoria furcellata (ID, MT, OR, WA; 25; 1970-2014)
Bryoria fuscescens (AK, BC, ID, MT, OR, WA, YK; 2176; 1800-2015)
Bryoria glabra (AK, BC, ID, MT, OR, WA; 697; 1800-2015)
Bryoria implexa (AK, BC, ID, MT, OR, WA, YK; 24; 1800-2014)
Bryoria lanestris (AK, BC, ID, MT, OR, WA, YK; 134; 1800-2013)
Bryoria nadvornikiana (AK, BC, OR, WA; 18; 1974-2007)
Bryoria nitidula (AK, BC, YK; 66; 1800-2015)
Bryoria olivetorum (BC; 1; 1961)
Bryoria oregana (BC; 1; 1958)
ssp. abbreviata (BC; 1; 1958)
Bryoria oregona (BC; 2; 1995)
Bryoria pikei (BC, OR, WA; 26; 1959-2011)
Bryoria pseudocapillaris (OR, WA; 12; 1974-2014)
Bryoria pseudofuscens (BC; 9; 1961-1994)
Bryoria pseudofuscescens (AK, BC, ID, MT, OR, WA; 1544; 1800-2018)
Bryoria salazinica (OR; 1; 1997)
Bryoria simplicior (AK, BC, ID, MT, OR, WA, YK; 342; 1800-2015)
Bryoria spiralifera (OR, WA; 15; 1997-2005)
Bryoria subcana (OR, WA; 6; 1995-2011)
Bryoria tenuis (AK, BC, OR; 97; 1970-2015)
Bryoria tortuosa (AK, BC, ID, MT, OR, WA; 249; 1899-2015)
Bryoria trichodes (AK, BC, ID, OR, WA; 587; 1800-2015)
ssp. americana (AK, BC, ID, OR, WA; 157; 1948-2015)
ssp. trichodes (BC, OR, WA; 11; 1961-2003)
Buellia aethalea (AK, OR, WA; 13; 1973-1982)
Buellia alboatea (OR; 1; ?)
Buellia androgyna (OR; 1; 2001)
Buellia badia (AK, BC, ID, MT, OR, WA; 16; 1883-2000)
Buellia dispersa (ID, OR; 5; 1977-2019)
Buellia elegans (AK, BC, ID, MT, YK; 18; 1979-2016)
Buellia epigaea (BC, ID, WA; 11; 1981-2013)
Buellia erubescens (AK, BC, ID, OR, WA; 12; 1980-2002)
Buellia griseovirens (BC, WA; 5; 1989-2010)
Buellia insignis (AK; 1; 1992)
Buellia muriformis (OR; 3; 1997-2005)
Buellia ocellata (AK; 1; 1992)
Buellia oidalea (WA; 3; 1980-1987)
Buellia papillata (AK, BC, ID, OR, WA; 31; 1940-2013)
Buellia spuria (AK, OR, WA; 3; 1991-2000)
Buellia stellulata (AK, BC, OR, WA; 19; 1913-1998)
Buellia stillingiana (BC, OR; 2; 1967)
Buellia terricola (WA; 1; 2013)
Buellia triphragmioides (BC, OR; 3; ?)
Buellia triphragmoides (OR; 3; 1977-2000)
Buellia triseptata (OR; 5; 1977-2005)
Buellia veruculosa (BC; 1; 1975)
Bunodophoron melanocarpum (AK, BC, WA; 26; 1965-2007)
Byssoloma marginatum (OR; 2; 1996-2012)
Byssoloma subdiscordans (WA; 1; 2004)
Caliciium subquercinum (BC; 2; 1971-1978)
Caliciium viride (BC, MT; 7; 1913-1979)
Calicium abietinum (AK, BC, ID, OR, WA; 11; 1913-2001)
Calicium adaequatum (AK, MT, OR, WA; 26; 1882-2015)
Calicium adequatulum (MT; 1; 1967)
Calicium adspersum (BC, WA; 5; 1911-2000)
Calicium chlorosporum (WA; 1; 1995)
Calicium corynellum (ID, MT, OR; 4; 1983-1993)
Calicium glaucellum (AK, BC, ID, MT, OR, WA; 363; 1974-2014)
Calicium lenticulare (AK, BC, OR, WA; 105; 1971-2015)
Calicium parvum (WA; 5; 1998-2000)
Calicium salicinum (OR, WA; 16; 1912-2006)
Calicium trabinellum (BC, MT; 2; 1991-1993)
Calicium viride (AK, BC, ID, MT, OR, WA; 539; 1800-2015)
Caloplaca adnexa (MT; 1; 1995)
Caloplaca ammiospila (AK, BC, ID, MT, OR, WA; 26; 1970-2010)
Caloplaca approximata (AK; 1; 1992)
Caloplaca arenaria (BC, ID, WA; 10; 1974-2012)
Caloplaca atroalba (ID, OR, WA; 10; 1983-2019)
Caloplaca atroflava (BC; 3; 1974-1975)
Caloplaca atrosanguina (BC; 1; 1916)
Caloplaca atrosanguinea (BC, MT, OR, WA; 14; 1974-1993)
Caloplaca aurantia (WA; 2; 1937-1977)
Caloplaca bolacina (BC, OR, WA; 11; 1974-2000)
Caloplaca borealis (AK; 6; 1992-1993)
Caloplaca californica (OR, WA; 9; 1976-1982)
Caloplaca camptidia (WA; 1; 1979)
Caloplaca cascadensis (WA; 1; 1978)
Caloplaca castellana (AK; 1; 1993)
Caloplaca cerina (AK, BC, ID, MT, OR, WA; 84; 1800-2018)
Caloplaca chlorina (WA; 2; 1980)
Caloplaca chrysodeta (AK, BC, OR, WA; 6; 1989-2000)
Caloplaca chrysophthalma (BC, WA; 2; 1978-1986)
Caloplaca citrina (AK, BC, ID, MT, OR, WA; 41; 1931-2015)
Caloplaca cladodes (MT, WA; 3; 1984-1995)
Caloplaca coralloides (OR; 3; 1979-1991)
Caloplaca decipiens (ID, OR, WA; 13; 1961-2007)
Caloplaca demissa (BC, ID, WA; 8; 1892-1996)
Caloplaca diphyodes (BC, OR; 2; 1969-2007)
Caloplaca epithallina (ID, OR, WA; 18; 1976-2010)
Caloplaca exsecuta (AK, WA; 4; 1980-1992)
Caloplaca feracissima (WA; 2; 1977-1979)
Caloplaca ferruginea (AK, BC, ID, MT, OR, WA; 27; 1961-1998)
Caloplaca ferrugineofusca (MT; 1; 1984)
Caloplaca flavogranulosa (AK, WA; 21; 1949-2005)
Caloplaca flavorubescens (BC, ID, WA; 11; 1961-1990)
Caloplaca flavovirescens (AK, BC, ID; 6; 1953-1987)
Caloplaca frandans (ID; 1; 1990)
Caloplaca fraudans (AK, ID, MT, WA; 9; 1976-1993)
Caloplaca granulosa (AK, WA; 2; 1960)
Caloplaca holocarpa (AK, BC, ID, MT, OR, WA; 63; 1912-2013)
Caloplaca inconspecta (WA; 3; 1978-1997)
Caloplaca jungermanniae (AK, BC, ID, MT, OR, WA, YK; 59; 1925-2016)
Caloplaca kamczatica (BC, OR, WA; 14; 1967-1995)
Caloplaca lactea (AK, ID, WA; 15; 1978-2017)
Caloplaca litoricola (AK, BC; 14; 1967-2005)
Caloplaca livida (AK; 2; 1958)
Caloplaca lobulata (BC, ID, WA; 4; 1959-1993)
Caloplaca luteoalba (WA; 1; 1982)
Caloplaca luteominia (BC, ID, OR, WA; 28; 1906-2018)
var. bolanderi (OR; 1; 1993)
var. luteominia (BC, OR, WA; 23; 1906-2018)
Caloplaca magni-filli (BC; 1; 1994)
Caloplaca marina (BC, OR, WA; 43; 1955-1997)
ssp. americana (WA; 17; 1955-1997)
var. flavogranulata (BC; 1; 1967)
Caloplaca microphyllina (MT; 9; 2007-2010)
Caloplaca microthallina (AK; 1; 2001)
Caloplaca obliterans (BC; 4; 1974)
Caloplaca obscurella (BC; 1; 1995)
Caloplaca oregona (BC, OR, WA; 13; 1938-1989)
Caloplaca pollinii (BC; 1; ?)
Caloplaca rosei (BC, OR, WA; 14; 1955-1998)
Caloplaca saxicola (AK, BC, ID, MT, OR, WA; 42; 1931-2012)
Caloplaca scopularis (BC, WA; 2; 1961)
Caloplaca sinapisperma (AK, BC, WA; 7; 1961-2013)
Caloplaca sipeana (OR; 5; 1968-1972)
Caloplaca sorocarpa (WA; 5; 1991-1994)
Caloplaca subsoluta (WA; 3; 1954-1955)
Caloplaca tetraspora (AK, WA; 2; 1976-1996)
Caloplaca tirolensis (BC; 1; ?)
Caloplaca tiroliensis (AK, BC, ID, MT, WA; 19; 1970-2013)
Caloplaca tominii (AK, BC, ID, MT, OR, WA, YK; 67; 1977-2019)
Caloplaca tornoensis (ID, OR; 2; 1981-1996)
Caloplaca trachyphylla (BC, ID, MT, OR; 16; 1974-2000)
Caloplaca verruculifera (AK, BC, WA; 24; 1932-1995)
Caloplaca vitellinula (BC, OR, WA; 5; 1913-2012)
Caloplaca wetmorei (WA; 1; ?)
Caloplaca xanthostigmoidea (AK, BC; 2; 1991-1996)
Calvitimela aglaea (AK, OR; 7; 1959-2005)
Calvitimela armeniaca (AK, BC, MT, WA; 8; 1976-1994)
Candelaria concolor (AK, BC, ID, MT, OR, WA; 454; 1948-2020)
var. effusa (AK, BC, WA; 6; 1949-1986)
Candelaria vitellina (WA; 3; 1948)
Candelariella aggregata (ID, OR, WA; 21; 1981-2017)
Candelariella athallina (AK; 9; 1976-1993)
Candelariella aurella (AK, BC, ID, MT, OR, WA; 40; 1913-2007)
Candelariella biatorina (MT; 1; 2010)
Candelariella canadensis (OR; 1; 2005)
Candelariella citrina (ID, MT, OR, WA; 8; 1984-2013)
Candelariella deflexa (OR; 1; ?)
Candelariella dispersa (YK; 1; ?)
Candelariella efflorescens (AK, BC, ID, OR; 11; 1977-2005)
Candelariella kuusamoensis (WA; 1; 1976)
Candelariella lutella (AK, WA; 5; 1980-1993)
Candelariella placodizans (AK, BC; 3; 1981-1992)
Candelariella reflexa (ID; 2; 1988-2007)
Candelariella rosulans (BC, ID, MT, OR, WA; 30; 1981-2017)
Candelariella terrigena (AK, BC, ID, MT, OR, WA; 36; 1800-2007)
Candelariella vitellina (AK, BC, ID, MT, OR, WA, YK; 117; 1800-2013)
Candelariella xanthostigma (AK, BC, ID, MT, OR, WA; 14; 1973-2012)
Candellariella xanthostigma (BC; 1; 1981)
Carbonea vitellinaria (AK, ID; 2; 1981-1992)
Carbonea vorticosa (AK, BC, WA; 8; 1912-1995)
Carbonicola anthracophila (OR; 1; 1976)
Catapyrenium cinereum (AK, BC, ID, MT, OR, WA; 27; 1977-2005)
Catapyrenium daedaleum (AK, OR, WA; 9; 1994-2014)
Catapyrenium squamellum (WA; 2; 2013)
Catillaria chalybeia (BC, WA; 11; 1967-1997)
Catillaria erysiboides (BC, WA; 2; 1883-1974)
Catillaria franciscana (WA; 1; 1948)
Catillaria glauconigrans (OR; 4; 1969-1972)
Catillaria lenticularis (BC, WA; 2; 1913-2000)
Catinaria atropurpurea (WA; 2; 1931-2000)
Catolechia wahlenbergii (AK, BC, YK; 6; 1964-2014)
Catraria ciliaris (WA; 1; 1955)
Cavernularia hultenii (AK, BC, OR, WA; 710; 1800-2015)
Cavernularia lophyrea (AK, BC, OR, WA; 259; 1909-2015)
Cercidospora xanthoriae (ID; 1; 2010)
Cetralia cetrarioides (BC; 4; 1978)
Cetraria aculeata (AK, BC, ID, MT, OR, WA, YK; 209; 1800-2016)
Cetraria arenaria (AK, MT; 3; 1982-1984)
Cetraria ericetorum (AK, BC, MT, WA, YK; 220; 1800-2015)
ssp. (rasanen) (AK, BC; 4; 1969-1998)
ssp. (r„s„nen) (BC; 5; 1978-1980)
ssp. ericetorum (AK, BC; 5; 1800-1981)
ssp. reticulata (BC, MT, WA, YK; 62; 1958-2001)
ssp. reticulatum (BC; 1; 1981)
Cetraria erietorum (BC; 1; 1968)
Cetraria griffithii (BC; 1; 1975)
Cetraria iadahoensis (BC; 1; 1981)
Cetraria islandica (AK, BC, ID, MT, OR, WA, YK; 520; 1800-2019)
ssp. (rasanen) (AK; 3; 1998)
ssp. crispiformis (AK, BC, MT, WA, YK; 39; 1961-2004)
ssp. islandica (AK, BC, MT, WA, YK; 37; 1961-2004)
var. arborialis (BC; 27; 1916-1968)
Cetraria kamczatica (AK; 53; 1800-2007)
Cetraria laevigata (AK, BC, YK; 212; 1800-2011)
Cetraria lepatizon (BC; 1; 1975)
Cetraria merrilii (BC; 1; 1975)
Cetraria muricata (AK, BC, MT, OR, WA, YK; 50; 1800-2016)
Cetraria nigricans (AK, BC, YK; 91; 1800-2015)
Cetraria odontella (AK; 1; 2011)
Cetrariella commixita (WA; 1; 2012)
Cetrariella delisei (AK, BC, YK; 141; 1800-2019)
Cetrariella fastigiata (AK; 19; 1800-2014)
Cetraris islandica (BC; 1; 1977)
Cetrelia alaskana (AK; 17; 1800-2006)
Cetrelia cetrariodes (BC; 3; 1974)
Cetrelia cetrarioides (AK, BC, MT, OR, WA; 203; 1800-2015)
Cetrelia monachorum (OR; 2; 1996)
Cetrelia olivetorum (AK; 1; 1800)
Chaenotheca brachypoda (BC, WA; 75; 1991-2013)
Chaenotheca brunneola (AK, BC, ID, WA; 319; 1800-2013)
Chaenotheca caevulea (BC; 1; 1996)
Chaenotheca chlorella (BC, MT, WA; 83; 1995-2013)
Chaenotheca chrysocephala (AK, BC, OR, WA; 230; 1978-2016)
Chaenotheca cinerea (BC, WA; 44; 1979-2013)
Chaenotheca ferruginea (BC, WA; 66; 1972-2013)
Chaenotheca furfuracea (AK, BC, ID, MT, OR, WA; 176; 1800-2015)
Chaenotheca gracillima (BC, OR, WA; 183; 1982-2013)
Chaenotheca hispidula (OR, WA; 26; 1994-2013)
Chaenotheca hygrophila (WA; 25; 1997-2013)
Chaenotheca laevigata (AK, BC, MT, WA; 120; 1800-2013)
Chaenotheca nitidula (WA; 41; 1998-2013)
Chaenotheca olivaceorufa (WA; 1; 2001)
Chaenotheca phaeocephala (BC, WA; 14; 1995-2013)
Chaenotheca sphaerocephala (WA; 90; 1997-2005)
Chaenotheca stemonea (AK, WA; 39; 1800-2005)
Chaenotheca subroscida (BC, MT, OR, WA; 92; 1961-2015)
Chaenotheca trichialis (AK, BC, MT, OR, WA; 166; 1800-2013)
Chaenotheca xyloxena (BC, WA; 55; 1993-2013)
Chaenothecopsis consociata (BC, WA; 8; 1996-2013)
Chaenothecopsis debilis (BC, WA; 23; 1982-2013)
Chaenothecopsis epithallina (BC, WA; 13; 1994-2013)
Chaenothecopsis haematopus (WA; 2; 1997-2000)
Chaenothecopsis irregularis (WA; 1; 1998)
Chaenothecopsis nana (BC, ID, MT, WA; 147; 1979-2013)
Chaenothecopsis norstictica (WA; 1; 2013)
Chaenothecopsis ochroleuca (OR; 1; 2000)
Chaenothecopsis pusilla (AK, BC, OR, WA; 40; 1993-2013)
Chaenothecopsis pusiola (BC, WA; 36; 1995-2013)
Chaenothecopsis rubescens (OR; 1; 2000)
Chaenothecopsis rubina (WA; 1; 2013)
Chaenothecopsis savonica (MT, WA; 12; 1996-2005)
Chaenothecopsis tasmanica (AK, BC, ID, WA; 167; 1991-2013)
Chaenothecopsis thujae (WA; 1; 2002)
Chaenothecopsis tsugae (BC, WA; 8; 2005-2013)
Chaenothecopsis viridialba (BC, WA; 9; 1996-2004)
Chaenothecopsis viridireagens (BC, WA; 16; 1995-2005)
Cheiromycina flabelliformis (AK; 1; 2003)
Chromatochlamys muscorum (ID; 1; 1990)
var. octospora (ID; 1; 1990)
Chrysothrix aurea (BC; 1; 1988)
Chrysothrix candelaris (AK, BC, MT, OR, WA; 93; 1957-2012)
Chrysothrix chlorina (AK, BC, ID, MT, OR, WA; 40; 1800-2012)
Chrysothrix chrysophthalma (AK; 3; 2001)
Chrysothrix granulosa (AK, ID, OR, WA; 13; 1979-2013)
Cladidium bolanderi (ID, OR, WA; 4; 1929-2007)
Cladina alpestris (BC; 1; 1959)
var. abberrans (BC; 1; 1959)
Cladina arbuscula (AK, BC; 17; 1952-1991)
ssp. arbuscula (BC; 4; 1952-1970)
ssp. beringerina (BC; 1; 1979)
Cladina portentosa (AK, BC; 2; 1975-1992)
ssp. (ahti) (BC; 1; 1975)
Cladina pseudovansii (AK; 2; 1940)
Cladina ragiferina (BC; 1; 1975)
Cladina rangiferina (BC; 5; 1961-1962)
ssp. grisea (BC; 2; 1961)
ssp. rangiferina (BC; 3; 1961-1962)
Cladina squamosa (BC; 1; 1991)
Cladina stellaris (AK, BC, WA, YK; 159; 1800-2007)
ssp. aberrans (BC; 1; 1981)
var. stellaris (BC; 3; 1961-1991)
Cladonia acuminata (AK, BC, YK; 70; 1800-2015)
var. norlinii (BC; 2; 1981)
var. norrlinii (BC; 7; 1981)
var. norrlinil (BC; 1; 1975)
Cladonia alaskana (AK; 6; 1800-2004)
Cladonia albonigra (AK, BC, ID, OR, WA; 75; 1800-2015)
Cladonia amaurocraea (AK, BC, WA, YK; 359; 1800-2018)
Cladonia arbuscula (AK, BC, ID, MT, OR, WA, YK; 482; 1800-2013)
ssp. berengiana (BC; 1; 1977)
ssp. beringiana (AK, BC; 43; 1903-1994)
Cladonia artuata (OR, WA; 7; 1989-2008)
Cladonia asahinae (AK, BC, MT, OR, WA; 19; 1800-2003)
Cladonia bacilliformis (AK, BC, OR, WA; 106; 1800-2010)
Cladonia bellidifera (BC; 1; 1991)
Cladonia bellidiflora (AK, BC, ID, OR, WA, YK; 736; 1800-2018)
var. crassa (BC; 1; 1964)
Cladonia borealis (AK, BC, ID, MT, OR, WA, YK; 216; 1800-2015)
Cladonia boryi (AK; 1; 1800)
Cladonia botrytes (AK, BC, YK; 40; 1800-2010)
Cladonia caespiticia (AK, BC, WA; 5; 1947-1965)
Cladonia cariosa (AK, BC, ID, MT, OR, WA, YK; 201; 1800-2015)
var. cribosa (BC; 1; 1916)
var. cribrosa (OR; 1; 1933)
Cladonia carneola (AK, BC, ID, MT, OR, WA; 410; 1800-2015)
Cladonia caroliniana (WA; 1; 1974)
Cladonia carreola (BC; 1; 1970)
Cladonia cenotea (AK, BC, ID, MT, OR, WA, YK; 279; 1800-2015)
Cladonia cervicornis (AK, BC, ID, MT, OR, WA, YK; 165; 1800-2015)
ssp. cervicornis (BC, ID, OR, WA; 6; 1991-1997)
ssp. verticillata (AK, BC, ID, MT, OR, WA, YK; 59; 1800-2015)
Cladonia chlorophaea (AK, BC, ID, MT, OR, WA, YK; 693; 1800-2019)
Cladonia ciliata (AK, BC, OR, WA; 47; 1800-2015)
var. tenuis (BC, OR, WA; 17; 1952-1981)
Cladonia coccifera (AK, BC, ID, MT, OR, WA, YK; 337; 1800-2008)
ssp. pleurota (BC; 1; ?)
Cladonia coniocraea (AK, BC, ID, MT, OR, WA, YK; 625; 1800-2015)
Cladonia cornucopioides (BC; 1; 1902)
Cladonia cornuta (AK, BC, ID, MT, OR, WA, YK; 647; 1800-2015)
ssp. cornuta (AK, BC, ID, MT, OR, WA, YK; 13; 1961-2009)
ssp. groelandica (BC; 1; 1976)
ssp. groenlandica (AK, BC, WA; 15; 1950-2012)
ssp. groenlandicum (BC; 1; 1983)
var. conruta (BC; 1; 1978)
var. cornuta (BC; 1; 1980)
var. groenlandica (BC; 1; 1961)
Cladonia crispata (AK, BC, ID, OR, WA, YK; 270; 1800-2015)
ssp. centrariiformis (BC; 1; 1964)
var. cetrariiformis (BC; 4; 1956-1974)
var. crispata (AK, BC; 17; 1939-1995)
Cladonia cristatella (AK, WA; 8; 1800-2007)
Cladonia cryptochlorophaea (AK, ID; 10; 1800-2007)
Cladonia cyanipes (AK, BC, YK; 143; 1800-2012)
Cladonia cylindrica (AK, WA; 2; 1975-1981)
Cladonia dahlia (OR; 1; 1990)
Cladonia dahliana (MT; 2; 1981-1984)
Cladonia decorticata (AK, BC; 33; 1961-2012)
Cladonia deformis (AK, BC, ID, MT, WA, YK; 227; 1800-2015)
Cladonia digitata (AK, BC, MT, OR, WA; 52; 1800-2007)
Cladonia dimorpha (AK, OR; 3; 1953-2006)
Cladonia ecmocyna (AK, BC, ID, MT, OR, WA, YK; 529; 1800-2015)
ssp. (robbins) (BC; 7; 1961-1996)
ssp. ahti (BC, WA; 3; 1974-1996)
ssp. intemedia (BC; 19; 1925-1979)
ssp. intermedia (BC, ID, MT, WA, YK; 110; 1928-2002)
ssp. occidentalis (BC, MT, OR, WA; 18; 1969-2003)
var. ecmocyna (BC; 1; 1977)
Cladonia econocyna (BC; 10; 1992)
Cladonia emcomynca (BC; 1; 1977)
var. intermedia (BC; 1; 1977)
Cladonia evansii (BC; 1; ?)
Cladonia farinacea (WA; 1; 2007)
Cladonia fimbriata (AK, BC, ID, MT, OR, WA, YK; 952; 1800-2017)
var. corniacreaca (BC; 1; 1950)
var. furcellata (BC; 1; 1913)
var. ochrochlora (BC; 1; 1950)
var. radiata (BC; 10; 1916-1950)
var. subulata (BC; 1; ?)
Cladonia firma (BC; 1; 1994)
Cladonia floerkeana (BC; 2; 1949-1950)
Cladonia frimbriata (BC; 3; 1982)
Cladonia furcata (AK, BC, ID, MT, OR, WA, YK; 465; 1800-2015)
var. conspersa (BC; 1; 1916)
var. corymbosa (BC; 1; 1924)
Cladonia glauca (ID, MT; 2; 1962)
Cladonia gracilis (AK, BC, ID, MT, OR, WA, YK; 1117; 1800-2019)
ssp. ahti (AK, BC; 12; 1984-1998)
ssp. elongata (AK, BC, WA, YK; 28; 1912-1992)
ssp. gracilis (OR; 1; 2012)
ssp. turbinata (AK, BC, ID, MT, WA, YK; 117; 1889-2004)
ssp. vulnerata (AK, BC, WA; 22; 1961-2004)
var. chardalis (BC; 1; 1965)
var. dilitata (BC; 3; 1971)
var. hybrida (BC; 2; 1950-1951)
var. nigripes (BC; 1; 1968)
var. turbinata (BC; 3; 1961-1994)
Cladonia granulans (AK; 1; 2015)
Cladonia grayi (AK, BC, WA; 44; 1800-2007)
Cladonia groenlandica (BC; 1; 1971)
Cladonia homosekikaica (AK; 1; 1990)
Cladonia humilis (AK, BC; 2; 1967-2007)
Cladonia imbricarica (WA; 1; 2013)
Cladonia imbricola (BC; 1; 1978)
Cladonia kanewskii (AK, BC; 35; 1800-2015)
Cladonia leporina (AK; 4; 1800)
Cladonia luteoalba (AK, ID; 5; 1800-2015)
Cladonia macilenta (AK, BC, ID, MT, OR, WA; 316; 1800-2015)
var. bacillaris (AK, BC, ID, MT, OR, WA; 71; 1800-2015)
var. squamigera (BC; 1; 1950)
Cladonia macroceras (AK, BC, WA; 60; 1800-2008)
var. chordalis (BC; 1; 1962)
Cladonia macrophylla (AK, BC, MT; 69; 1800-2013)
Cladonia macrophyllodes (AK, BC, ID, MT, OR, WA; 121; 1800-2014)
Cladonia mateocyatha (BC, MT; 2; 1959-1977)
Cladonia maxima (AK, BC; 65; 1800-2015)
Cladonia merochlorophaea (AK, BC, ID, MT, OR, WA; 63; 1800-2012)
Cladonia metacorallifera (AK, BC, WA; 45; 1800-2008)
var. metacorallifera (BC; 1; 1982)
Cladonia mitis (AK, BC, ID, MT, OR, WA, YK; 374; 1800-2019)
Cladonia mixima (BC; 1; 1967)
Cladonia multiformis (AK, BC, ID, MT, OR, WA, YK; 167; 1800-2015)
Cladonia nipponica (AK, BC, YK; 17; 1800-2013)
Cladonia norrlinii (BC; 1; 1979)
Cladonia norvegica (AK, BC, ID, MT, OR, WA; 102; 1800-2015)
Cladonia novochlorophaea (OR; 1; 1998)
Cladonia ochlorochora (BC; 1; 1977)
Cladonia ochrochlora (AK, BC, ID, MT, OR, WA; 1340; 1800-2015)
var. ceratacles() (BC; 1; 1914)
var. elongata (BC; 1; 1914)
var. truncata (BC; 1; 1916)
Cladonia pacifica (BC; 29; 1904-1970)
Cladonia parasitica (BC; 2; 1981-1992)
Cladonia peziziformis (BC; 1; ?)
Cladonia phyllophora (AK, BC, ID, MT, OR, WA, YK; 271; 1800-2015)
Cladonia phyllopora (BC; 1; 1992)
Cladonia pleurota (AK, BC, ID, OR, WA, YK; 218; 1800-2015)
Cladonia pleurotia (BC; 1; 1995)
Cladonia pocillum (AK, BC, ID, MT, OR, WA, YK; 199; 1800-2014)
Cladonia polycarpoides (AK; 1; 1800)
Cladonia poroscypha (OR; 2; 2010)
Cladonia portentosa (AK, BC, OR, WA, YK; 221; 1800-2015)
ssp. pacifica (AK, BC, OR, WA; 108; 1958-2012)
Cladonia proliferata (BC; 3; 1965)
Cladonia prolifica (AK, BC, ID, MT, OR; 16; 1800-2009)
Cladonia pseudoevansii (AK, BC; 6; 1800-2008)
Cladonia pseudomacilenta (AK, BC; 6; 1800-1969)
Cladonia pulvinella (OR; 2; 1991-2013)
Cladonia pytyrea (BC; 1; 1986)
Cladonia pyxidata (AK, BC, ID, MT, OR, WA, YK; 486; 1800-2019)
var. chlorophaea (BC; 1; 1925)
var. laphyna (BC; 2; 1913)
Cladonia ramulosa (AK, MT; 2; 1800)
Cladonia rangiferina (AK, BC, ID, OR, WA, YK; 646; 1800-2015)
Cladonia rei (AK, BC, ID, MT, OR, WA; 31; 1800-2009)
Cladonia scabriuscula (AK, BC, ID, OR, WA; 210; 1800-2015)
Cladonia schofieldii (AK; 1; 1800)
Cladonia signata (BC; 1; 1996)
Cladonia singularis (AK, BC, WA; 25; 1800-2015)
Cladonia squamosa (AK, BC, ID, MT, OR, WA, YK; 1343; 1800-2015)
ssp. subsquamosa (BC; 1; 1979)
var. denticolis (BC; 1; 1950)
var. elegans (BC; 1; 1975)
var. frondosa (BC; 1; 1950)
var. muricella (BC; 1; 1968)
var. squamosa (BC, ID, OR; 12; 1961-1990)
var. subsquamosa (AK, BC, MT, OR, WA; 351; 1916-2015)
Cladonia squamulosa (OR; 4; 2011-2014)
var. subsquamosa (OR; 4; 2011-2014)
Cladonia stellaris (AK, BC, OR, WA, YK; 107; 1800-2011)
var. aberrans (AK, BC; 14; 1934-2004)
Cladonia stricta (AK, BC, WA; 63; 1800-2007)
Cladonia stygia (AK, BC, WA; 46; 1800-2015)
Cladonia subfurcata (AK, BC; 91; 1800-2016)
Cladonia subradiata (OR, WA; 2; 1976-2009)
Cladonia subsquamosa (AK, BC, OR, WA; 151; 1905-2002)
var. luxurians (BC; 12; 1950)
var. polychomia (BC; 1; 1950)
var. pulverutenta (BC; 1; 1905)
Cladonia subulata (AK, BC, ID, MT, OR, WA; 77; 1800-2015)
Cladonia sulphurina (AK, BC, ID, MT, OR, WA, YK; 451; 1800-2015)
Cladonia symphycarpa (AK, BC, MT; 46; 1800-1997)
Cladonia symphycarpia (AK, WA, YK; 14; 1882-2007)
Cladonia terrae-novae (AK; 2; 1800-1962)
Cladonia transcendens (AK, BC, ID, OR, WA; 1092; 1800-2015)
Cladonia trassii (AK; 28; 1800-2010)
Cladonia turgida (AK, BC, WA; 7; 1800-1982)
Cladonia umbricola (AK, BC, ID, MT, OR, WA; 412; 1800-2015)
Cladonia uncialis (AK, BC, ID, MT, WA, YK; 462; 1800-2015)
var. turgescens (AK; 1; 1939)
Cladonia uncinalis (BC; 2; 1991)
Cladonia verriculosa (OR, WA; 12; 1996-2015)
Cladonia verruclosa (BC; 9; 1950-1970)
Cladonia verruculosa (AK, BC, ID, MT, OR, WA; 194; 1800-2015)
Cladonia vulcani (BC; 12; 1975-1983)
Cladonia vulcanii (BC; 1; 1983)
Cladonia wainioi (AK, BC, YK; 21; 1800-2011)
Clauzadea monticola (BC; 3; 1974)
Clauzadeana macula (AK; 1; 1978)
Cliostomum flavidulum (WA; 5; 1997-2001)
Cliostomum griffithii (AK, BC, OR, WA; 68; 1912-2012)
Cliostomum leprosum (AK, BC, OR; 5; 1994-2003)
Coccocarpia erythroxyli (AK; 4; 2004-2005)
Coccocarpia palmicola (WA; 1; 1999)
Coccotrema maritimum (AK, BC; 19; 1800-1998)
Coccotrema pocillaria (BC; 4; 1967)
Coccotrema pocillarium (AK, BC, OR, WA; 36; 1800-2010)
Coelocaulon uncialis (BC; 2; 1982)
Coenogonium luteum (AK, BC, OR, WA; 19; 1928-2010)
Coenogonium pineti (AK, BC, OR, WA; 11; 1979-2001)
Collema bachmanianum (AK, OR, WA, YK; 6; 1800-2011)
Collema callopismum (AK, BC, OR; 4; 2000-2002)
Collema ceraniscum (AK, BC, OR, WA; 13; 1800-2014)
Collema coccophorum (AK, BC, ID, MT, OR, WA; 24; 1800-2017)
Collema cocophorum (BC; 2; 2000)
Collema crispum (AK, BC, ID, OR, WA; 14; 1800-2000)
Collema cristatum (AK, BC, WA; 14; 1800-2006)
var. marginale (BC, WA; 5; 1982-2000)
var. marginata (BC; 2; 1981-1994)
Collema curtisporum (AK, ID, MT, WA; 45; 1800-2012)
Collema fecundum (AK, BC, WA; 24; 1964-2015)
Collema flaccidum (AK, BC, MT, WA; 7; 1800-1998)
Collema furfuraceum (AK, BC, ID, MT, OR, WA; 172; 1800-2015)
var. luzonense (BC; 2; 1966-1967)
Collema fuscovirens (AK, BC, MT, WA; 47; 1800-2015)
Collema glebulentum (AK, BC, ID, OR; 13; 1800-2012)
Collema leptaleum (AK; 9; 1800)
Collema limosum (WA; 2; 1983)
Collema multipartitum (AK, BC; 2; 1994-2007)
Collema nigrescens (AK, BC, OR, WA; 79; 1950-2015)
Collema nigriscens (BC; 1; 1982)
Collema occultatum (AK, OR; 3; 1800-2006)
var. populinum (OR; 1; 1999)
Collema polycarpon (AK, BC, ID, MT, WA; 23; 1800-2012)
Collema rugosum (BC; 1; 1975)
Collema saturninum (BC; 1; 1992)
Collema subflaccidum (AK, BC, OR, WA; 20; 1800-2005)
Collema subparvum (BC, OR, WA; 5; 1988-2004)
Collema tenax (AK, BC, ID, MT, OR, WA, YK; 142; 1800-2019)
var. coralinum (BC; 1; 1994)
var. corallinum (WA; 1; 1998)
var. substellatum (BC, ID; 3; 1982-1994)
var. tenax (BC; 1; 1982)
Collema undulatum (AK, BC, WA, YK; 35; 1800-2004)
var. granulosum (BC, WA; 15; 1967-2000)
Collemopsidium elegans (AK; 1; 2012)
Collemopsidium halodytes (AK, BC; 2; 1980-2012)
Collemopsidium sublitoralis (AK, WA; 2; 1952-2012)
Cornicularia devergens (AK; 1; 1977)
Cornicularia normoerica (BC, MT, OR, WA; 34; 1800-2002)
Cornicularis normoerica (BC; 4; 1982)
Corticifraga fuckelii (OR; 1; 2000)
Corticifraga peltigerae (MT; 1; 1982)
Cresponea chloroconia (WA; 3; 1979)
Crocynia lanuginosa (AK, WA; 19; 1947-1961)
Crocynia membranacea (AK, ID, MT, OR, WA; 21; 1947-1963)
Cryptothele iivaarense (BC; 1; 1991)
Cybebe gracilenta (WA; 13; 1998-2013)
Cypheliium inquinans (BC; 2; 1997)
Cyphelium brunneolum (WA; 2; 1906)
Cyphelium calciforme (BC; 1; 1967)
Cyphelium inguinans (BC; 7; 1912-1972)
Cyphelium inquinana (BC; 5; 1995)
Cyphelium inquinans (BC, ID, MT, OR, WA; 278; 1891-2013)
Cyphelium karelicum (BC, WA; 31; 1980-2013)
Cyphelium lucidum (ID, WA; 3; 1980-2007)
Cyphelium notarisii (MT; 8; 2007-2010)
Cyphelium pinicola (BC, ID, MT, OR, WA; 34; 1970-2014)
Cyphelium tigillare (AK, BC, ID, OR, WA; 14; 1931-2012)
Cystocoleus ebeneus (AK, BC, MT, OR, WA; 23; 1981-2015)
Cystocoleus niger (WA; 3; 1979-1982)
Dactylina arctica (AK, BC, WA, YK; 307; 1800-2014)
Dactylina beringica (AK, BC, YK; 83; 1800-2008)
Dactylina madrepariformis (BC; 1; 1975)
Dactylina ramulosa (AK, BC, MT, WA, YK; 166; 1800-2015)
Dactylospora attendenda (BC; 1; 1994)
Dendriscocaulon intricatulum (AK, BC, OR, WA; 50; 1990-2011)
Dendriscocaulon umhausense (BC, WA; 6; 1978-1992)
Dendrographa leucophaea (BC; 2; 1993)
Dermatina quercus (WA; 1; 1969)
Dermatocarpon arnoldianum (AK; 3; 1800-2001)
Dermatocarpon bachmannii (ID, OR, WA; 10; 1986-2017)
Dermatocarpon intestiniforme (AK, BC, ID, MT, OR, WA; 35; 1931-2006)
Dermatocarpon lorenzianum (ID; 5; 1984-2000)
Dermatocarpon luridum (AK, BC, ID, MT; 9; 1965-2014)
Dermatocarpon meiophyllizum (ID, WA; 12; 1938-2010)
Dermatocarpon miniatum (AK, BC, ID, MT, OR, WA; 134; 1800-2007)
Dermatocarpon moulinsii (BC, ID, MT, WA; 12; 1929-2000)
Dermatocarpon reticulatum (AK, BC, ID, MT, OR, WA; 163; 1800-2014)
Dermatocarpon rivulorum (AK, BC, ID, MT, OR, WA; 43; 1800-2015)
Dermotocarpon reticulatum (OR; 1; 1990)
Dibaeis baeomyces (AK, BC, OR, WA; 17; 1800-2015)
Didymosphaeria oregonensis (OR; 2; ?)
Dimelaena oreina (AK, BC, ID, MT, OR, WA, YK; 25; 1800-2012)
Dimelaena thysanota (ID, OR, WA; 6; 1912-1997)
Diploschiste scruposus (BC; 1; 1980)
Diploschistes actinostomus (MT, WA; 6; 1909-1962)
Diploschistes bisporus (BC; 1; 1974)
Diploschistes diacapsis (ID, OR, WA, YK; 6; 1983-2011)
Diploschistes gypsaceus (OR, WA; 2; 1997-2001)
Diploschistes muscornum (BC; 1; 1991)
Diploschistes muscorum (AK, BC, ID, MT, OR, WA, YK; 101; 1800-2018)
ssp. muscorum (BC, OR, WA; 5; 1967-1998)
Diploschistes scruposus (AK, BC, ID, MT, OR, WA; 118; 1800-2012)
Diplotomma alboatrum (AK, BC, OR, WA; 17; 1913-2006)
Diplotomma ambiguum (BC; 1; 1967)
Diplotomma chlorophaeum (WA; 1; 1928)
Diplotomma epipolium (AK, ID; 2; 1987-2002)
Diplotomma penichrum (BC, ID, MT, OR, WA; 81; 1894-2007)
Diplotomma venustum (ID; 1; 1987)
Endocarpon loscosii (ID, MT, WA; 10; 1981-2017)
Endocarpon pseudosubnitescens (WA; 1; 2013)
Endocarpon pulvinatum (AK, BC, ID, MT, OR, WA; 34; 1882-2005)
Endocarpon pusillum (AK, BC, ID, MT, OR, WA, YK; 88; 1979-2020)
Endocarpon tortuosum (ID, MT, WA; 8; 1982-1996)
Eopyrenula intermedia (BC; 1; 2010)
Eopyrenula parvispora (BC; 1; 1967)
Ephebe hispidula (AK, BC; 2; 1989-2005)
Ephebe lanata (AK, BC, OR, WA; 37; 1800-2015)
Ephebe perspinulosa (AK, OR; 2; 2014-2017)
Ephebe solida (AK, OR; 5; 1978-2015)
Epigloea pleiospora (BC; 1; 2009)
Epilichen scabrosus (AK, OR, WA; 15; 1992-2012)
Erioderma mollissimum (BC; 1; 1983)
Erioderma pedicellatum (AK; 15; 1800-2014)
Erioderma sorediatum (AK, BC, OR; 22; 1976-2014)
Esslingeriana idahoensis (BC, ID, MT, OR, WA; 720; 1931-2015)
Esslingeriona idshoensis (BC; 1; 1977)
Euopsis granatina (AK, WA; 9; 1931-1995)
Euopsis pulvinata (AK, WA; 11; 1951-2012)
Evernia divaricata (AK, BC, MT; 15; 1978-2005)
Evernia mesomorpha (AK, BC, MT, WA; 129; 1800-2011)
Evernia perfragilis (AK, YK; 47; 1960-2011)
Evernia prunastri (AK, BC, ID, MT, OR, WA; 1401; 1889-2015)
Evernia prunatris (BC; 2; 1986)
Farnoldia jurana (AK, WA; 9; 1991-1998)
Fellhanera bouteillei (OR, WA; 8; 1981-2006)
Fellhaneropsis vezdae (WA; 2; 1997-1998)
Fissurina columbina (WA; 3; 1997-1998)
Fistulariella dilacerata (MT, WA; 8; 1976-1981)
Flavocetraria cucullata (AK, BC, MT, WA, YK; 375; 1800-2019)
Flavocetraria minuscula (AK; 4; 1800-2010)
Flavocetraria nivalis (AK, BC, MT, OR, WA, YK; 384; 1800-2013)
Flavoparmelia baltimorensis (ID; 1; 1990)
Flavoparmelia caperata (OR, WA; 6; 1993-2000)
Flavopunctelia flaventior (BC, ID, OR, WA; 17; 1974-2017)
Flavopunctelia soredica (ID, MT, OR, WA; 97; 1974-2014)
Flavopunctelia sroedica (ID; 1; 1999)
Foraminella ambigua (WA; 1; 1983)
Frutidella caesioatra (AK, WA; 4; 1982-2015)
Fulgensia bracteata (AK, BC, ID, MT, OR, WA, YK; 62; 1965-2017)
Fulgensia desertorum (AK, BC, ID, MT; 8; 1981-2016)
Fulgensia fulgens (BC, ID, MT; 4; 1974-1981)
Fuscidea cyathoides (WA; 1; 1997)
Fuscidea mollis (AK, BC; 5; 1947-1980)
Fuscidea praeruptorum (MT; 1; 1984)
Fuscidea thomsonii (BC; 2; 2000)
Fuscopannaria ahlneri (AK, BC; 25; 1800-2009)
Fuscopannaria aurita (OR, WA; 9; 1971-1998)
Fuscopannaria cheiroloba (AK, BC, MT; 5; 1800-1985)
Fuscopannaria confusa (AK, OR; 12; 1999-2015)
Fuscopannaria convexa (AK; 5; 2015)
Fuscopannaria coralloidea (OR; 3; 1998-2006)
Fuscopannaria crustacea (OR; 1; 2000)
Fuscopannaria cyanolepra (ID, MT, OR, WA; 23; 1961-2013)
Fuscopannaria laceratula (AK, BC; 52; 1949-2015)
Fuscopannaria leprosa (WA; 1; 2014)
Fuscopannaria leucophaea (BC, OR, WA; 6; 1914-1982)
Fuscopannaria leucosticta (BC, OR, WA; 10; 1912-2015)
Fuscopannaria leucostictoides (AK, BC, ID, OR, WA; 87; 1928-2019)
Fuscopannaria maritima (AK, BC, OR, WA; 38; 1964-1995)
Fuscopannaria mediterranea (AK, BC, ID, OR, WA; 43; 1982-2015)
Fuscopannaria pacifica (AK, ID, OR, WA; 156; 1960-2015)
Fuscopannaria praetermissa (AK, BC, MT, OR, WA; 122; 1800-2015)
Fuscopannaria pulveracea (AK, OR; 3; 1800-2014)
Fuscopannaria ramulina (AK, OR; 3; 1800-2009)
Fuscopannaria saubinetii (AK, BC, OR, WA; 169; 1800-2004)
Fuscopannaria thiersii (OR; 1; 2013)
Fuscopannaria viridescens (AK; 3; 1800-2014)
Glypholecia scabra (AK, ID, MT; 6; 1977-1999)
Graphina anguina (OR; 1; 1996)
Graphina sophisticascens (WA; 1; 1927)
Graphis elegans (OR, WA; 10; 1891-1996)
Graphis insidiosa (BC; 1; 1967)
Graphis scripta (AK, BC, OR, WA; 129; 1889-2012)
var. topographica (BC; 2; 1950)
Graphis striatula (WA; 1; 1987)
Graphis tenella (WA; 1; 1893)
Gyalecta cupularis (BC; 1; 1975)
Gyalecta foveolaris (AK; 24; 1970-1992)
Gyalecta friesii (WA; 2; 2000)
Gyalecta jenensis (BC, WA; 2; 1931-1981)
Gyalidea hyalinescens (AK, BC; 4; 1976-1997)
Gyalidea roseola (BC; 1; 1967)
Gyalideopsis anastomosans (WA; 1; 1995)
Gyalideopsis piceicola (BC, WA; 4; 1976-1996)
Gypsoplaca macrophylla (BC, YK; 6; 1994-2011)
Haematomma herrei (OR; 1; 1973)
Haematomma ochroleucum (AK, OR, WA; 5; 1978-2013)
var. porphyrium (AK, OR, WA; 5; 1978-2013)
Haematomma persoonii (BC; 1; ?)
Hafellia disciformis (AK, BC, OR, WA; 22; 1891-1999)
Halecania alpivaga (WA; 1; 2013)
Halecania viridescens (WA; 1; 1998)
Haplocarpon crustulatum (BC; 2; 1912-1967)
Haplocarpon macrocarpum (BC; 4; 1967-1970)
Helocarpon crassipes (AK; 3; 2001-2002)
Heppia lutosa (BC, ID, MT, OR, WA; 25; 1979-2013)
Herteliana alaskensis (AK, BC, WA; 19; 1945-2000)
Hertelidea botryosa (BC, OR; 6; 1913-2009)
Heterodermia japonica (AK, OR; 3; 1800-2000)
Heterodermia leucomela (BC, OR, WA; 17; 1981-2005)
Heterodermia obscurata (OR; 1; 2000)
Heterodermia sitchensis (BC, OR; 3; 1983-2000)
Heterodermia speciosa (AK, BC, ID, OR; 27; 1800-2014)
Heteroplacidium congestum (ID, OR; 23; 1980-2017)
Hydropunctaria maura (BC, OR; 5; 1967-1976)
Hydrotheria venosa (BC; 1; 1977)
Hymenelia epulotica (AK, OR, WA; 12; 1978-1996)
Hymenelia heteromorpha (AK; 1; 1981)
Hymenelia melanocarpa (AK; 1; 1978)
Hymenelia obtecta (WA; 1; 1982)
Hymenelia rhodopis (AK; 2; 2015)
Hypocenomyce anthracophila (OR, WA; 2; 1969)
Hypocenomyce castaneocinerea (BC, ID, MT, OR, WA; 85; 1990-2015)
Hypocenomyce friesii (AK, BC, ID, MT, OR, WA; 67; 1966-2005)
Hypocenomyce leucococca (AK, BC, WA; 4; 1994-2014)
Hypocenomyce scalaris (BC, ID, MT, OR, WA; 217; 1958-2015)
Hypogymnia apinnata (AK, BC, ID, MT, OR, WA; 2177; 1899-2015)
Hypogymnia austerodes (AK, BC, ID, MT, OR, WA, YK; 216; 1800-2015)
Hypogymnia bitteri (AK, BC, MT, WA, YK; 141; 1800-2014)
Hypogymnia duplicata (AK, BC, OR, WA; 341; 1891-2015)
Hypogymnia enteromorpha (AK, BC, ID, MT, OR, WA; 3498; 1889-2015)
Hypogymnia farinacea (MT; 1; 2009)
Hypogymnia florida (BC; 1; 1985)
Hypogymnia heterophylla (AK, BC, OR, WA; 103; 1952-2015)
Hypogymnia hultenii (WA; 1; 1994)
Hypogymnia hygrophila (OR; 1; 1990)
Hypogymnia imshaugii (AK, BC, ID, MT, OR, WA; 3599; 1890-2018)
var. inactiva (BC; 4; 1964-1973)
Hypogymnia inactiva (AK, BC, ID, MT, OR, WA; 2052; 1890-2015)
Hypogymnia lugubris (OR; 1; 2004)
Hypogymnia metaphysodes (AK, BC, ID, MT, OR, WA; 343; 1900-2015)
Hypogymnia metaphysoides (BC; 1; 1991)
Hypogymnia occidentalis (AK, BC, ID, MT, OR, WA, YK; 1784; 1800-2015)
Hypogymnia oceanic (OR; 1; 1990)
Hypogymnia oceanica (AK, BC, OR, WA, YK; 271; 1978-2015)
Hypogymnia oroactica (BC; 1; 1975)
Hypogymnia physodes (AK, BC, ID, MT, OR, WA; 3378; 1800-2015)
var. vittata (AK, BC; 2; 1904-1939)
Hypogymnia pulverata (AK; 6; 2012-2013)
Hypogymnia rugosa (AK, BC, ID, MT, OR, WA; 329; 1925-2015)
Hypogymnia subcapitata (OR; 1; 2010)
Hypogymnia subobscura (AK, BC, MT, WA, YK; 50; 1800-2015)
Hypogymnia tubulosa (AK, BC, ID, MT, OR, WA; 2000; 1800-2015)
Hypogymnia vittata (AK, BC, MT, OR, WA; 209; 1956-2015)
Hypogymniu physodes (BC; 5; 1986-1991)
Hypopymnia apinnata (BC; 1; 1992)
Hypopymnia tubulosa (BC; 1; 1979)
Hypotrachya sinuosa (BC; 3; 1993)
Hypotrachyna pulvinata (WA; 1; 1978)
Hypotrachyna revoluta (BC, OR, WA; 25; 1971-2014)
Hypotrachyna riparia (OR; 1; ?)
Hypotrachyna sinuosa (AK, BC, OR, WA; 540; 1942-2015)
Icmadophila ericetorum (AK, BC, ID, MT, OR, WA, YK; 411; 1800-2015)
Illosporium carneum (AK, BC, ID, MT; 5; 1982-2012)
Immersaria carbonoidea (AK, BC; 3; 1958-1967)
Imshaugia aleurites (AK, BC, ID, MT, OR, WA; 69; 1800-2014)
Ionaspis carnosula (WA; 1; 1982)
Ionaspis lacustris (AK, BC, OR, WA; 11; 1800-2008)
Ionaspis lavata (WA; 2; 1978-1979)
Ionaspis odora (BC; 2; 1970)
Ionaspis ordora (BC; 1; 1967)
Ionaspis schismatopsis (BC; 1; 1977)
Ionaspis suaveolens (BC; 1; 1962)
Japewia subaurifera (AK, BC, MT, OR, WA; 31; 1989-2015)
Japewia tornoensis (AK, BC, OR, WA; 86; 1894-2015)
Kaernefeltia californica (AK, BC, OR, WA; 40; 1908-2005)
Kaernefeltia merrillii (AK, BC, ID, MT, OR, WA; 1472; 1800-2017)
Karnefeltia californica (WA; 1; 1997)
Karnefeltia merrillii (BC; 5; 1995-1996)
Koerberia biformis (WA; 1; 2001)
Koerberia sonomensis (OR, WA; 4; 1994-2000)
Koerberiella wimmeriana (AK, ID; 2; 2001-2006)
Kohlmeyera complicatula (AK; 3; 1960-2015)
Lambiella caeca (OR; 1; 2001)
Lasallia papulosa (AK, BC, OR; 4; 1975-1983)
Lasallia pensylvanica (AK, BC, YK; 27; 1800-2015)
Lecanactis abietina (AK, BC, WA; 22; 1967-2003)
Lecanactis amylacea (WA; 1; 1940)
var. megaspora (WA; 1; 1940)
Lecania aipospila (BC, WA; 6; 1974-1978)
Lecania cyrtella (BC, OR, WA; 4; 1928-2001)
Lecania dubitans (BC, OR, WA; 3; 1882-1994)
Lecania dudleyi (BC; 5; 1974-1977)
Lecania naegelii (BC; 1; ?)
Lecania nylanderiana (BC, WA; 3; 1913-1995)
Lecania pacifica (OR, WA; 3; 1956-2003)
Lecanographa amylacea (BC, WA; 2; 1914-1997)
Lecanora alaskensis (AK; 1; 1982)
Lecanora albella (AK, WA; 14; 1891-1994)
Lecanora albellula (BC, ID, WA; 4; 1991-1996)
Lecanora albescens (AK, BC, ID, WA; 8; 1949-1994)
Lecanora aleutica (AK; 5; 1800-2000)
Lecanora allophana (AK, BC, MT, WA; 66; 1891-2001)
Lecanora argopholis (AK, BC, ID, MT, OR, WA; 25; 1906-2007)
Lecanora atrosanguinea (BC; 1; 1912)
Lecanora atrosulphurea (AK, MT, YK; 9; 1960-1984)
Lecanora beringii (BC, ID; 2; 1976-1987)
Lecanora bicincta (AK, MT, OR, WA; 6; 1961-2010)
Lecanora boligera (WA; 1; 1998)
Lecanora cadubriae (ID, MT, OR, WA; 8; 1980-2008)
Lecanora campestris (BC, OR, WA; 8; 1961-1996)
Lecanora carpinea (MT, OR, WA; 25; 1894-2012)
Lecanora cenisia (AK, ID, MT, OR, WA; 24; 1800-2007)
Lecanora chlarotera (OR; 4; 1996)
Lecanora cinereofusca (AK, BC, WA; 13; 1967-2012)
Lecanora circumborealis (AK, BC, MT, OR, WA; 77; 1916-2013)
Lecanora confusa (BC, OR, WA; 24; 1912-2001)
Lecanora conizaeoides (BC, WA; 22; 1967-2000)
Lecanora crenulata (AK, ID; 7; 1991-2000)
Lecanora crustacea (AK; 2; 1978)
Lecanora dispersa (AK, BC, ID, MT, WA; 34; 1906-2011)
Lecanora epanora (BC; 1; 1980)
Lecanora epibryon (AK, BC, ID, MT, WA, YK; 116; 1800-2018)
Lecanora expallens (AK, BC, OR, WA; 20; 1958-2003)
Lecanora farinaria (BC, WA; 4; 1989-1998)
Lecanora flavoppunctata (BC; 1; 1994)
Lecanora flowersiana (ID, OR, WA; 7; 1991-2017)
Lecanora fugiens (AK; 1; 2005)
Lecanora furscescens (BC; 1; 1996)
Lecanora fuscescens (AK, BC, MT, OR, WA; 18; 1906-2003)
Lecanora garovaglii (BC, ID, MT, OR, WA; 42; 1974-2010)
Lecanora geophila (AK; 2; 1980)
Lecanora glaucornela (BC; 1; 1913)
Lecanora hagenii (BC, ID, OR, WA; 15; 1893-2008)
Lecanora hybocarpa (OR, WA; 5; 1997-2003)
Lecanora hypoptoides (OR; 3; 1977-1993)
Lecanora impudens (AK, BC; 2; 1979)
Lecanora intricata (AK, BC, MT, WA; 4; 1975-2013)
Lecanora jamesii (BC, WA; 6; 1989-1999)
Lecanora laatokkaensis (OR; 4; 1991-2009)
Lecanora laxa (ID, OR; 4; 1977-1999)
Lecanora laxula (BC; 1; 1967)
Lecanora leptacina (AK; 2; 1993)
Lecanora luteovernalis (AK; 4; 1971-2004)
Lecanora marginata (AK, MT, WA; 10; 1956-1997)
Lecanora melaena (WA; 7; 1957-1982)
Lecanora mellea (OR; 1; ?)
Lecanora muralis (AK, BC, ID, MT, OR, WA; 203; 1906-2017)
var. versicolor (WA; 1; 1957)
Lecanora nigromarginata (BC; 3; 1985-1994)
Lecanora novomexicana (ID, MT, OR; 14; 1969-2013)
Lecanora opiniconensis (WA; 1; 1931)
Lecanora orae-frigidae (WA; 5; 1998-2002)
Lecanora oreinoides (WA; 2; 1948)
Lecanora pacifica (BC, OR, WA; 103; 1891-2004)
Lecanora paddensis (OR; 1; 2000)
Lecanora phaedrophthalma (BC, ID, OR, WA; 16; 1977-1994)
var. christoi (BC, ID, OR, WA; 11; 1977-1994)
Lecanora pinguis (BC; 1; 1962)
Lecanora poliophaea (BC, WA; 3; 1971-1978)
ssp. brodo (BC; 1; 1971)
Lecanora polytropa (AK, BC, ID, OR, WA; 117; 1894-2012)
Lecanora populicola (OR; 1; 1991)
Lecanora pringlei (BC, ID, MT, OR, WA, YK; 21; 1981-2007)
Lecanora pseudistera (WA; 1; 1906)
Lecanora pseudomellea (ID, OR, WA; 9; 1981-2010)
Lecanora pulicaris (AK, OR, WA; 45; 1913-2013)
Lecanora reagens (ID, MT, WA; 6; 1983-1999)
Lecanora rugosella (AK, ID; 2; 1940-1990)
Lecanora rupicola (AK, BC, ID, MT, OR, WA, YK; 64; 1893-2000)
Lecanora salicicola (OR; 2; 1996)
Lecanora saligna (ID, OR, WA; 8; 1977-2019)
Lecanora salina (WA; 4; 1979-1988)
Lecanora sambuci (WA; 1; 1987)
Lecanora semitensis (BC, OR, WA; 8; 1985-2013)
Lecanora sierrae (ID; 1; 1954)
Lecanora sipeana (OR; 1; ?)
Lecanora straminea (AK, BC, WA; 21; 1932-2000)
Lecanora strobilina (AK, OR, WA; 3; 1957-1996)
Lecanora sulphurea (BC; 1; 1974)
Lecanora weberi (BC; 1; 1994)
Lecidea ahlesii (BC; 1; 1967)
Lecidea albofuscescens (BC, OR, WA; 9; 1967-2000)
Lecidea albohyalina (WA; 1; 2000)
Lecidea amaurospoda (BC, WA; 2; 1980-2001)
Lecidea atrobrunnea (AK, BC, ID, MT, OR, WA, YK; 87; 1904-2015)
ssp. stictica (ID; 1; 1954)
Lecidea atromarginata (MT, WA; 4; 1978-1982)
Lecidea auriculata (AK, BC, ID, MT, WA; 15; 1931-2006)
Lecidea berengeriana (AK, BC, MT, OR, WA; 29; 1955-2016)
Lecidea brodoana (WA; 1; 1995)
Lecidea carnulenta (WA; 1; 1979)
Lecidea cascadensis (OR, WA; 10; 1893-1995)
Lecidea cinerata (WA; 2; 1913)
Lecidea confluens (AK; 2; 1913-1948)
Lecidea congesta (WA; 1; 1981)
Lecidea cruciaria (BC, OR, WA; 11; 1974-1993)
Lecidea cyrtidia (WA; 1; ?)
Lecidea diapensiae (AK; 1; 2004)
Lecidea diducens (AK; 1; 1980)
Lecidea ecrustacea (AK; 1; 1978)
Lecidea erythrophaea (BC; 1; 1971)
Lecidea fuscatoatra (BC, WA; 4; 1906-1989)
Lecidea fuscoatra (AK, BC, ID, OR, WA; 29; 1909-1998)
var. grisella (BC; 2; 1967-1979)
var. grissilla (BC; 2; 1912-1913)
Lecidea fuscoatrina (OR; 1; 1995)
Lecidea hassei (WA; 1; 1912)
Lecidea holopolia (OR, WA; 3; 1882-2009)
Lecidea hypomela (WA; 1; ?)
Lecidea laboriosa (ID, OR, WA; 27; 1981-2017)
Lecidea lapicida (AK, MT, WA; 52; 1893-2015)
Lecidea leprarioides (AK, BC; 2; 1991)
Lecidea leucothallina (BC, MT, WA; 10; 1976-1994)
Lecidea lithophila (OR, WA; 2; 1961-1977)
Lecidea lyngei (ID; 1; 1990)
Lecidea mannii (BC, WA; 20; 1974-1982)
Lecidea meiocarpa (OR; 1; 2000)
var. tacomensis (OR; 1; 2000)
Lecidea myriocarpella (OR, WA; 2; 1996)
Lecidea nylanderi (BC, WA; 7; 1980-2001)
Lecidea paddensis (OR, WA; 8; 1883-2012)
Lecidea plana (AK, BC, ID, OR, WA; 18; 1913-2012)
Lecidea plebeja (OR, WA; 2; 1914-2001)
Lecidea protabacina (BC, ID, OR, WA; 8; 1901-1998)
Lecidea pumicicola (OR; 4; ?)
Lecidea quadricolor (BC; 1; 1961)
var. granulosa (BC; 1; 1961)
Lecidea ramulosa (AK; 9; 1970-1980)
Lecidea rubiformis (BC; 1; 1978)
ssp. latu (BC; 1; 1978)
Lecidea rufofusca (BC, WA; 2; 1924-1981)
Lecidea silacea (AK, WA; 2; 1913)
Lecidea somphoterella (AK; 2; 1960)
Lecidea subcandida (YK; 1; 2011)
Lecidea sulphurea (BC; 6; 1974)
Lecidea swartzioidea (AK; 1; 1980)
Lecidea syncarpa (AK, ID; 2; 1950-1992)
Lecidea tessellata (AK, BC, ID, MT, OR, WA; 76; 1909-2006)
Lecidea truckeei (WA; 1; 1978)
Lecidea ulignosa (BC; 1; 1982)
Lecidea umbonata (MT; 4; 1983-1984)
Lecidea vacciniala (BC; 3; 1995)
Lecidea vaciniicoia (BC; 1; 1994)
Lecidea varians (WA; 1; 1931)
Lecidella anomaloides (WA; 3; 1906-1995)
Lecidella asema (BC; 9; 1974)
Lecidella carpathica (AK, OR, WA; 12; 1928-2013)
Lecidella elaeochroma (BC, ID, OR, WA; 27; 1906-2005)
Lecidella enteroleucella (WA; 2; 2000)
Lecidella euphorea (AK, BC, ID, MT, OR, WA; 49; 1954-2010)
Lecidella lacteola (BC; 3; 1974)
Lecidella laureri (BC; 1; 1994)
Lecidella patavina (AK, BC, ID; 9; 1977-1993)
Lecidella scabra (BC, WA; 7; 1974-1982)
Lecidella stigmatea (AK, BC, ID, MT, OR, WA, YK; 51; 1958-2013)
Lecidella subincongrua (WA; 10; 1964-1982)
Lecidella wulfenii (AK, BC, WA, YK; 24; 1965-2014)
Lecidoma demissum (AK, BC, ID, MT, OR, WA, YK; 68; 1900-2015)
Leciographa parellaria (OR; 3; ?)
Leciophysma finmarkicum (AK, WA; 10; 1982-2009)
Leciophysma furfurascens (AK, BC; 3; 1970-1982)
Leioderma sorediatum (AK, OR; 10; 1976-2014)
Lemmopsis arnoldiana (AK; 1; 1979)
Lempholemma cladodes (MT; 1; 2001)
Lempholemma fennicum (WA; 1; 1995)
Lempholemma isidioides (BC; 1; 1991)
Lempholemma polyanthes (AK, BC, MT; 7; 1800-2007)
Lempholemma radiatum (AK, BC, MT; 4; 1968-2003)
Lempholemma vesiculiferum (AK; 2; 2014)
Lepidoma demissa (BC; 2; 1981)
Leprapia aeruginosa (BC; 1; 1964)
Lepraria borealis (OR; 1; 2009)
Lepraria cacuminum (BC, WA; 3; 2000)
Lepraria caesioalba (AK, BC, ID, OR, WA; 35; 1926-2010)
Lepraria diffusa (AK, BC, OR; 5; 1967-2010)
var. chrysodetoides (BC, OR; 2; 1994-2010)
Lepraria eburnea (AK, BC, OR, WA; 10; 1947-2013)
Lepraria incana (BC, OR, WA; 48; 1967-2015)
Lepraria lobificans (AK, BC, ID, OR, WA; 28; 1947-2010)
Lepraria membranacea (AK, BC, ID, OR, WA, YK; 11; 1950-1996)
Lepraria neglecta (AK, BC, ID, OR, WA; 29; 1968-2019)
Lepraria nivalis (BC, WA; 2; 1937-1967)
Lepraria rigidula (ID, OR; 5; 1998-2011)
Lepraria vouauxii (AK, BC, ID, MT, OR, WA; 30; 1961-2009)
Leprocaulon albicans (AK, BC, MT, OR, WA; 19; 1931-1993)
Leprocaulon microscopicum (ID, OR; 2; 1996-2000)
Leprocaulon subalbicans (AK, BC, ID, MT, OR, WA; 67; 1958-2006)
Leproloma membranaceum (AK; 2; 1945)
Leptochidium albociliatum (BC, ID, MT, OR, WA; 128; 1883-2018)
Leptogium aquale (OR; 4; 2000)
Leptogium arsenei (ID, OR; 2; 2001)
Leptogium brebissonii (AK, OR, WA; 16; 1969-2015)
Leptogium brunetiae (BC; 1; 1984)
Leptogium burnetiae (AK, BC, ID, OR, WA; 30; 1977-2013)
Leptogium byssinum (WA; 1; 2004)
Leptogium californica (BC; 2; 1963-1964)
Leptogium californicum (AK, BC, ID, OR, WA; 57; 1931-2007)
Leptogium cellulosum (ID, OR, WA; 21; 1992-2011)
Leptogium corticola (BC, WA; 6; 1914-1982)
Leptogium cyanescens (AK, BC, ID, OR, WA; 20; 1955-2001)
Leptogium denticulatum (OR, WA; 2; 1996)
Leptogium gelatinosum (AK, BC, ID, OR, WA; 55; 1957-2013)
Leptogium hirsutum (AK, BC, ID, MT, OR, WA; 10; 1965-2007)
Leptogium imbricatum (AK, BC; 5; 1964-2015)
Leptogium intermedium (AK, BC, ID, OR, WA; 26; 1991-2016)
Leptogium lichenoides (AK, BC, ID, MT, OR, WA; 337; 1800-2017)
var. pulvinatum (BC; 1; 1961)
Leptogium lichinoides (BC; 1; 1991)
Leptogium lichnoides (ID; 1; 1990)
Leptogium massiliense (BC; 2; 2000)
Leptogium palmata (BC; 1; 1987)
Leptogium palmatum (AK, BC, ID, OR, WA; 289; 1905-2013)
Leptogium platynum (BC, OR, WA; 11; 1968-1987)
Leptogium plicatile (BC, ID, WA; 5; 1968-1991)
Leptogium polycarpum (BC, OR, WA; 164; 1967-2015)
Leptogium pseudofurfuraceum (BC, ID, OR, WA; 31; 1973-2013)
Leptogium rivale (BC, MT, OR, WA; 16; 1974-2001)
Leptogium saturninum (AK, BC, ID, MT, OR, WA, YK; 319; 1800-2018)
Leptogium schraderi (AK, BC, OR, WA; 7; 1952-2002)
Leptogium subaridum (BC, ID, OR, WA; 27; 1987-2013)
Leptogium subtile (AK, BC, ID, OR, WA; 21; 1975-2005)
Leptogium tacomae (OR, WA; 8; 1998-2015)
Leptogium tenuissimum (AK, BC, ID, OR, WA; 45; 1800-2008)
Leptogium teretiusculum (AK, BC, OR, WA; 29; 1975-2014)
Leptogium xericum (BC; 4; 1988)
Letharia columbiana (BC, ID, MT, OR, WA; 1107; 1896-2018)
Letharia gracilis (OR; 3; 2013-2014)
Letharia vulpina (AK, BC, ID, MT, OR, WA, YK; 2508; 1889-2017)
Leucocarpia biatorella (AK; 1; 2004)
Lichenoconium erodens (OR; 1; 1990)
Lichenoconium lecanorae (ID; 1; 2009)
Lichenomphalia alpina (AK, BC; 7; 1977-2012)
Lichenomphalia hudsoniana (AK, BC; 46; 1800-2012)
Lichenomphalia umbellifera (AK, BC, ID, MT, OR, WA; 174; 1952-2018)
Lichenostigma maureri (ID; 2; 2009-2010)
Lichenothelia metzleri (BC; 1; 1975)
Lichenothelia scopularia (ID; 1; 1990)
Lichinella nigritella (AK, BC, OR, WA; 13; 1974-2014)
Lichinella stipatula (AK, ID; 3; 1989-2002)
Lichinodium canadense (AK, BC, WA; 10; 1800-2001)
Lichinodium sirosiphoideum (AK, BC; 2; 1800-1989)
Lithographa tesserata (BC; 1; 1988)
Llimonaea californica (WA; 1; 1996)
Lobaria amplissima (AK; 25; 1999-2011)
Lobaria anomala (OR; 3; 1973-1976)
Lobaria anthraspis (OR; 3; 1974-1992)
Lobaria hallii (AK, BC, ID, MT, OR, WA; 249; 1800-2015)
Lobaria isidiosa (BC; 1; 1970)
Lobaria kurokawae (AK; 9; 2000-2007)
Lobaria linita (AK, BC, ID, OR, WA, YK; 842; 1800-2019)
var. linita (BC; 3; 1961-1977)
var. temios (BC; 2; 1959-1963)
var. tenuior (BC; 4; 1962-1979)
Lobaria linitia (BC; 2; 1980)
Lobaria oregana (AK, BC, OR, WA; 983; 1871-2015)
Lobaria pseudopulmonaria (AK; 8; 2003-2009)
Lobaria pulmonaria (AK, BC, ID, MT, OR, WA; 1328; 1800-2019)
Lobaria retigera (AK, BC; 52; 1936-2009)
Lobaria scrobiculata (AK, BC, ID, MT, OR, WA; 589; 1800-2015)
Lobaria silvae-veteris (BC, WA; 14; 1980-1996)
Lobothallia alphoplaca (AK, ID, MT, OR, WA; 27; 1971-2019)
Lobothallia melanaspis (BC, MT, WA; 13; 1913-1997)
Lobothallia praeradiosa (BC, ID, OR, WA; 12; 1977-1998)
Lobothallia radiosa (ID, MT; 4; 1980-1999)
Lopadium coralloideum (AK; 28; 1972-2007)
Lopadium disciforme (AK, BC, ID, OR, WA; 43; 1993-2019)
Lopadium pezizoideum (AK, BC, ID, OR, WA, YK; 118; 1883-2014)
Lopezaria versicolor (AK; 1; 1974)
Lopodium disciforme (BC; 1; 1996)
Loxospora elatina (BC, OR, WA; 4; 1882-2010)
Loxosporopsis corallifera (AK, BC, OR, WA; 93; 1951-2015)
Loxosporospsis corallifera (BC; 1; 1996)
Manolangia carnora (ID; 1; 1990)
Masonhalea richardsonii (AK, BC, YK; 375; 1800-2011)
Masontralea richardsonii (AK; 1; 1984)
Massalongia carnosa (AK, BC, ID, MT, OR, WA; 177; 1800-2018)
Massalongia microphylliza (BC, ID; 3; 1991-2010)
Megalaria brodoana (WA; 2; 1994)
Megalaria columbiana (BC, WA; 7; 1913-1998)
Megalaria laureri (BC, WA; 2; 1996)
Megalaria pulverea (WA; 2; 1994)
Megaspora verrucosa (AK, BC, ID, MT, OR, WA, YK; 145; 1909-2017)
Melanelia agnata (AK, BC, YK; 30; 1800-2007)
Melanelia commixta (AK, BC, ID, MT, WA, YK; 60; 1800-2011)
Melanelia disjuncta (AK, BC, ID, MT, OR, WA; 66; 1800-2011)
Melanelia granulosa (BC, OR; 4; 1982-1990)
Melanelia hepatizon (AK, BC, ID, MT, WA, YK; 183; 1800-2015)
Melanelia infumala (BC; 1; 1982)
Melanelia panniformis (AK, BC, ID, MT, OR, WA; 97; 1800-2015)
Melanelia septentrionalis (AK, BC, YK; 9; 1800-2002)
Melanelia sorediata (AK, BC, ID, MT, OR, WA; 59; 1800-2008)
Melanelia stygia (AK, BC, MT, WA, YK; 110; 1800-2015)
Melanelia suboliuaca (OR; 1; 1976)
Melanelia tominii (AK, BC, OR, WA; 32; 1800-1999)
Melanelia trabeculata (AK, BC; 11; 1981-2007)
Melanelia verruculifera (BC; 1; 1990)
Melanelis stygia (BC; 2; 1968-1974)
Melanelixia albertana (AK, WA; 5; 1982-2001)
Melanelixia fuliginosa (BC, ID, MT, OR, WA; 263; 1967-2015)
Melanelixia glabra (BC, ID, WA; 6; 1990-2012)
Melanelixia subargentifera (BC, ID, MT, OR, WA; 74; 1926-2015)
Melanelixia subaurifera (AK, BC, ID, MT, OR, WA; 407; 1800-2015)
Melanella subelegantula (BC; 1; 2000)
Melanohalea elegantula (AK, BC, ID, MT, OR, WA, YK; 768; 1965-2015)
Melanohalea exasperata (ID, MT, OR, WA; 165; 1942-2015)
Melanohalea exasperatula (AK, BC, ID, MT, OR, WA; 1396; 1800-2015)
Melanohalea infumata (AK, BC, MT, OR; 15; 1800-2010)
Melanohalea multispora (AK, BC, ID, MT, OR, WA; 269; 1894-2015)
Melanohalea olivacea (AK, BC, OR, WA; 29; 1800-2013)
Melanohalea olivaceoides (BC; 1; 1975)
Melanohalea septentrionalis (AK, OR, WA; 47; 1800-2014)
Melanohalea subelegantula (AK, BC, ID, MT, OR, WA; 626; 1977-2015)
Melanohalea subolivacea (AK, BC, ID, MT, OR, WA; 703; 1976-2015)
Melanohalea trabeculata (AK, BC, YK; 21; 1800-2013)
Melanomma oxysporum (WA; 1; 1927)
Menegazzia pertusa (WA; 1; 1947)
Menegazzia subsimilis (BC, OR, WA; 46; 1988-2015)
Menegazzia terebrata (AK, BC, ID, OR, WA; 360; 1906-2015)
Metamelanea melambola (WA; 1; 1931)
Micarea assimilata (AK, BC, WA; 10; 1961-1995)
Micarea botryoides (BC; 1; 1986)
Micarea denigrata (BC, WA; 3; 1974-2003)
Micarea elachista (BC; 1; 1995)
Micarea erratica (OR; 3; ?)
Micarea incrassata (AK; 13; 1978-2014)
Micarea leprosula (MT; 1; 1979)
Micarea lignaria (OR; 1; 1969)
Micarea melaena (BC; 1; 1995)
Micarea misella (BC; 1; 1974)
Micarea peliocarpa (BC, ID; 8; 1974-2009)
Micarea prasina (BC, WA; 6; 1975-2010)
Micarea sylvicola (BC; 1; 1974)
Micarea synotheoides (WA; 1; 1998)
Micarea ternaria (AK; 1; 2002)
Micarea xanthonica (BC, WA; 3; 1989-1998)
Microcalicium ahlneri (BC, OR, WA; 55; 1996-2013)
Microcalicium arenarium (BC, WA; 2; 1972)
Microcalicium conversum (WA; 1; 2013)
Microcalicium dissemenatum (OR; 1; 2014)
Microcalicium disseminatum (BC, MT, WA; 151; 1978-2013)
Microlychnus epicorticis (BC; 1; 1995)
Miriquidica atrofulva (WA; 1; 2012)
Miriquidica instrata (WA; 3; 1982)
Miriquidica intrudens (MT; 1; 1977)
Miriquidica leucophaea (AK, WA; 2; 1978-1995)
Miriquidica lulensis (WA; 1; 1996)
Miriquidica pycnocarpa (AK; 1; 1978)
Miriquidica scotopholis (ID, OR; 2; 1978-2014)
Moelleropsis nebulosa (ID, MT; 3; 1986)
Muellerella pygmaea (OR; 1; 1996)
Mycobilimbia berengeriana (AK, BC, ID, MT, OR, WA; 12; 1974-2004)
Mycobilimbia carneoalbida (AK, MT; 9; 1978-2014)
Mycobilimbia hypnorum (AK, BC, MT, WA; 22; 1906-2010)
Mycobilimbia lobulata (AK, MT; 2; 1969-1995)
Mycobilimbia lurida (AK, BC; 5; 1958-1992)
Mycobilimbia pilularis (AK, BC, OR, WA; 21; 1925-2012)
Mycobilimbia tetramera (AK, BC, WA; 6; 1953-2015)
Mycoblastus affinis (AK, BC, ID, OR, WA; 101; 1907-2015)
Mycoblastus alpinus (AK, BC, WA; 39; 1940-2000)
Mycoblastus caesius (AK, BC, ID, OR, WA; 19; 1971-2012)
Mycoblastus sanguinarium (BC; 1; 1977)
Mycoblastus sanguinarius (AK, BC, ID, MT, OR, WA; 277; 1910-2015)
Mycocalicium albonigrum (WA; 1; 1983)
Mycocalicium fuscipes (WA; 4; 1997-2002)
Mycocalicium subtile (BC, MT, OR, WA; 158; 1979-2013)
Mycoglaena coerulia (OR; 1; 1970)
Mycomicrothelia micula (WA; 1; 1981)
Mycoporum antecellans (OR; 1; 1996)
Mycoporum antecellens (OR, WA; 5; 1894-1995)
Mykoblastus affinis (BC; 1; 1993)
Mykoblastus alpinus (BC; 1; 1994)
Mykoblastus sanguinarius (BC; 20; 1971-1995)
Mykoblastus tornoensis (OR; 1; 1990)
Myochroidea rufofusca (ID, OR; 2; 1997-2005)
Myriolecis zosterae (ID; 1; 2008)
Myxobilimbia sabuletorum (BC, OR, WA; 4; 1931-2001)
Neofuscelia loxodes (BC, ID, OR, WA; 22; 1952-2007)
Neofuscelia pustulosa (WA; 1; 1983)
Neofuscelia subhosseaba (BC; 1; 1994)
Neofuscelia subhosseana (BC, ID, MT, OR, WA; 15; 1965-2007)
Neofuscelia verruculifera (BC, ID, OR, WA; 33; 1974-2000)
Nephroma antequorum (BC; 2; 1992)
Nephroma arcticum (AK, BC, WA, YK; 210; 1800-2016)
Nephroma bellum (AK, BC, MT, OR, WA, YK; 611; 1800-2015)
Nephroma expallidum (AK, BC, YK; 188; 1800-2019)
Nephroma helveticum (AK, BC, ID, MT, OR, WA; 695; 1800-2015)
ssp. (gyelnik) (BC; 6; 1977-1999)
ssp. helveticum (BC; 1; 1995)
ssp. sipeanum (BC, OR, WA; 45; 1961-2003)
Nephroma isidiosum (AK, BC; 95; 1800-2015)
Nephroma laevigatum (AK, BC, ID, OR, WA; 288; 1889-2015)
Nephroma lavigatum (OR; 1; 1990)
Nephroma occultum (AK, BC, OR, WA; 105; 1940-2015)
Nephroma parile (AK, BC, ID, MT, OR, WA; 464; 1800-2015)
Nephroma resupinatum (AK, BC, ID, MT, OR, WA; 625; 1800-2015)
Nephroma silvae-veteric (BC; 1; 1994)
Nephromopsis californica (WA; 2; 1954-1957)
Nephromopsis ciliaris (MT, OR, WA; 6; 1937-1963)
Nephromopsis platyphylla (MT; 1; 1963)
Niebla cephalota (AK, OR, WA; 17; 1956-2001)
Nodobryoria abbreviata (BC, ID, MT, OR, WA; 1704; 1931-2018)
Nodobryoria oregana (AK, BC, ID, MT, OR, WA; 1933; 1950-2015)
Nodobryoria subdivergens (AK, BC, MT; 7; 1970-1994)
Normandina pulchella (AK, BC, ID, OR, WA; 112; 1931-2014)
Ocellularia granulosa (WA; 1; 1987)
Ochrolechia androgyna (AK, BC, ID, MT, OR, WA; 49; 1968-2012)
Ochrolechia arborea (AK, ID, OR, WA; 4; 1990-2005)
Ochrolechia farinacea (BC, OR, WA; 29; 1953-2014)
Ochrolechia frigida (AK, BC, WA, YK; 213; 1940-2015)
f. thelephoroides (AK; 1; 1975)
var. thelephoroides (YK; 7; 1967-1968)
Ochrolechia gowardii (BC, ID, MT, OR, WA; 19; 1995-2013)
Ochrolechia grimmiae (AK; 9; 1968-1993)
Ochrolechia inaequatula (AK, BC, ID, MT, OR, WA, YK; 14; 1958-1997)
Ochrolechia juvenalis (AK, BC, ID, OR, WA; 25; 1950-2006)
Ochrolechia laevigata (AK, BC, OR, WA; 69; 1931-2009)
Ochrolechia montana (BC, ID, MT, WA; 8; 1948-1998)
Ochrolechia oregonensis (AK, BC, OR, WA; 291; 1914-2015)
Ochrolechia pallescens (AK, BC, OR, WA; 98; 1906-1994)
var. rosella (OR, WA; 17; 1906-1981)
Ochrolechia parella (AK, BC, OR, WA; 22; 1892-1995)
Ochrolechia rhodoleuca (AK, BC; 3; 1955-1967)
Ochrolechia subathallina (BC, OR, WA; 10; 1967-1998)
Ochrolechia subisidiata (MT; 1; 2007)
Ochrolechia subpallescens (AK, BC, ID, OR, WA; 58; 1907-2004)
Ochrolechia subplicans (AK, BC; 39; 1947-1998)
ssp. hultenii (AK; 15; 1947-1965)
var. subplicans (BC; 1; 1988)
Ochrolechia szatalaensis (BC, ID, MT, OR, WA; 16; 1968-2007)
var. farinacea (BC; 1; 1968)
Ochrolechia tartarea (AK, BC, OR, WA; 98; 1906-2006)
Ochrolechia trochophora (AK, WA; 7; 1996-2012)
var. pruinirosella (WA; 3; 1996-2001)
Ochrolechia turneri (BC, MT, WA; 5; 1994-2014)
Ochrolechia uppsalensis (OR; 1; 2014)
Ochrolechia upsaliensis (AK, BC, ID, MT, OR, WA, YK; 157; 1800-2016)
Ochrolechia xanthostoma (AK, BC; 3; 1948-1991)
Ochrolechia yasudae (OR, WA; 5; 1976)
Opegrapha atra (BC, WA; 8; 1913-1950)
Opegrapha fumosa (WA; 5; 1994-1999)
Opegrapha herbarum (AK, BC, OR, WA; 20; 1913-2006)
Opegrapha leucoplaca (WA; 1; 1906)
Opegrapha lithyrga (BC; 1; 1949)
Opegrapha ochrocheila (BC; 2; 1974-1975)
Opegrapha protuberans (WA; 25; 1894-1979)
Opegrapha rufescens (BC; 2; 1915-1971)
Opegrapha rupestris (AK, WA; 4; 1913-1979)
Opegrapha sorediifera (WA; 1; 1998)
Opegrapha varia (AK, BC, OR, WA; 40; 1891-2001)
Opegrapha vulgata (WA; 3; 1977-1978)
Opegrapha zonata (AK; 1; 1999)
Opergrapha jujuha (BC; 1; 1986)
Ophioparma lapponica (AK, BC, MT, OR, WA, YK; 103; 1907-2012)
Ophioparma rubricosa (BC, ID, MT, OR, WA; 41; 1968-2015)
Ophioparma ventosa (AK, WA; 16; 1973-2013)
Orchrolechia oregonensis (BC; 1; 1974)
Orphniospora moriopsis (AK, BC, WA; 31; 1800-1994)
Palicella schizochromatica (OR, WA; 3; 2003-2014)
Pannaria brunneola (WA; 1; 1906)
Pannaria cheiroloba (BC; 1; 1996)
Pannaria conoplea (AK, BC, ID, OR; 13; 1800-2007)
Pannaria hookeri (WA; 1; 1979)
Pannaria lacerata (BC; 3; 1983)
Pannaria lacesatula (AK; 1; 1965)
Pannaria meditterranea (BC; 1; 1979)
Pannaria rubiginella (AK, MT, OR; 5; 1913-2003)
Pannaria rubiginosa (AK, BC, OR, WA; 10; 1940-2015)
Pannaria saubingtii (BC; 1; 1971)
Pannaria subfusca (OR; 1; 1995)
Par hyp (ID; 1; 2003)
Paraphysothele viridis (WA; 2; 1979-1980)
Parmelia cumberlandica (BC; 1; 1981)
Parmelia divaricata (OR; 1; 1990)
Parmelia frandans (BC; 1; 1990)
Parmelia fraudans (AK, BC, ID, MT, WA, YK; 46; 1800-2009)
Parmelia glabratula (BC; 1; 1961)
var. glabratula (BC; 1; 1961)
Parmelia hygrophila (AK, BC, ID, MT, OR, WA; 2470; 1800-2015)
Parmelia omphalodes (AK, BC, MT, WA, YK; 245; 1800-2018)
Parmelia physodes (BC, WA; 2; 1890-1950)
var. enteromorpha (BC; 1; 1950)
var. vittata (WA; 1; 1890)
Parmelia pseudosulcata (AK, BC, ID, OR, WA; 392; 1971-2015)
Parmelia saxatilis (AK, BC, ID, MT, OR, WA; 843; 1800-2019)
var. saxatilis (BC; 1; 1961)
Parmelia saxitilis (YK; 2; 1982)
Parmelia skultii (AK; 9; 1800-2001)
Parmelia squarrosa (AK, BC, MT, OR, WA; 160; 1800-2015)
Parmelia subhygricola (AK, BC; 22; 1981-1982)
Parmelia sulcata (AK, BC, ID, MT, OR, WA; 3352; 1800-2015)
Parmelia taractica (BC, YK; 16; 1961-1982)
Parmeliella corallinoides (AK, OR; 5; 1913)
Parmeliella cyanolepra (ID, OR, WA; 10; 1896-1999)
Parmeliella parvula (AK, OR, WA; 10; 1998-2003)
Parmeliella triptophylla (AK, BC, MT, OR, WA; 74; 1800-2015)
Parmeliella tryptophylla (BC; 2; 1981)
Parmeliopsis ambigua (AK, BC, ID, MT, OR, WA, YK; 1500; 1800-2015)
var. ambigua (MT, OR, WA; 4; 1931-1962)
Parmeliopsis hyperopta (AK, BC, ID, MT, OR, WA, YK; 2747; 1800-2015)
Parmotrema arnoldii (AK, BC, OR, WA; 217; 1904-2015)
Parmotrema chinense (BC, OR, WA; 140; 1931-2015)
Parmotrema crinitum (AK, BC, OR, WA; 48; 1967-2015)
Parmotrema cristiferum (OR, WA; 7; 1931-1958)
Parmotrema hypotropum (AK, OR, WA; 21; 1996-2015)
Parmotrema perforatum (AK, OR, WA; 4; 1913-2015)
Parmotrema rockii (WA; 1; 1978)
Parmotremopsis antillensis (OR; 1; 1996)
Peccania subnigra (ID; 1; 1991)
Pelitgera aphthosa (BC; 1; 1964)
Pelitgera canina (BC; 1; 1981)
Pelitgera elisabethae (MT; 3; 1974-1982)
Pelitgera ponojensis (BC; 1; 1962)
Pelitgera rufescens (BC; 1; 1962)
Pelitgera scabrosa (BC; 2; 1980-1982)
Peltigera ahtiana (BC; 3; 1983)
Peltigera aphthosa (AK, BC, ID, MT, OR, WA, YK; 808; 1800-2019)
ssp. brittanicus (BC; 1; 1981)
ssp. chionophila (BC; 1; 1984)
var. britanicus (BC; 1; 1981)
var. brittanicus (BC, OR; 31; 1957-1983)
var. chionophila (BC; 1; 1984)
Peltigera britannica (AK, BC, ID, MT, OR, WA; 379; 1800-2015)
Peltigera canina (AK, BC, ID, MT, OR, WA, YK; 623; 1800-2019)
Peltigera chionophila (AK, BC, WA; 33; 1982-2011)
Peltigera choniophila (BC; 1; 1995)
Peltigera chonophila (BC; 1; 1997)
Peltigera chronophila (BC; 2; 1968-1985)
Peltigera chronophora (AK; 1; 1968)
Peltigera cinnamomea (AK, BC, OR, WA; 20; 1982-2008)
Peltigera cinnamonea (AK, BC, OR; 26; 1964-2001)
Peltigera cinnanonea (BC; 1; 1996)
Peltigera collina (AK, BC, ID, MT, OR, WA; 1092; 1800-2015)
Peltigera coriacea (BC; 3; 1971-1983)
Peltigera degenii (AK, BC, OR, WA; 45; 1950-2012)
Peltigera didactyla (AK, BC, ID, MT, OR, WA, YK; 218; 1800-2019)
var. didacyla (BC; 1; 1994)
Peltigera elisabathae (BC; 1; 1973)
Peltigera elisabethae (AK, BC, MT, OR, WA; 120; 1800-2014)
Peltigera evansiana (AK, BC, WA; 14; 1960-2009)
Peltigera extenuata (AK, BC, WA; 29; 1800-2015)
Peltigera friabilis (BC; 2; 1983)
Peltigera glauca (BC; 6; 1982-1983)
Peltigera horizontalis (AK, BC, ID, MT, WA; 81; 1800-2010)
Peltigera hydrothyria (BC, MT, OR, WA; 49; 1931-2002)
Peltigera hymenina (AK, BC, OR; 15; 1962-2011)
Peltigera krisstinsonii (BC; 1; 1964)
Peltigera kristinsonii (BC; 4; 1979-1980)
Peltigera kristinssonii (AK, BC, ID, MT, WA; 95; 1800-2015)
Peltigera kristissonii (BC; 1; 1992)
Peltigera latiloba (AK; 1; 1951)
Peltigera lepidophora (AK, BC, MT, OR, WA, YK; 71; 1800-2015)
Peltigera leucophlebia (AK, BC, ID, MT, OR, WA, YK; 583; 1800-2019)
Peltigera malacea (AK, BC, ID, MT, OR, WA, YK; 415; 1800-2019)
Peltigera membranacea (AK, BC, ID, MT, OR, WA; 777; 1800-2019)
Peltigera membranaceae (BC; 4; 1993)
Peltigera neckeri (AK, BC, ID, MT, OR, WA, YK; 142; 1800-2015)
Peltigera neopolydactya (BC; 1; 1995)
Peltigera neopolydactyla (AK, BC, ID, OR, WA, YK; 635; 1800-2015)
Peltigera pacifica (AK, BC, ID, OR, WA; 241; 1912-2013)
Peltigera polydactylon (AK, BC, MT, OR, WA; 458; 1800-2013)
Peltigera ponojensis (AK, BC, ID, MT, OR, WA; 198; 1800-2015)
Peltigera praetexta (BC; 1; 1971)
Peltigera praetextata (AK, BC, ID, MT, OR, WA, YK; 192; 1800-2019)
Peltigera pratextata (BC, OR; 3; 1990-1991)
Peltigera preatextata (OR; 6; 1994-1998)
Peltigera retifoveata (AK, BC, WA; 51; 1800-2016)
Peltigera rufescens (AK, BC, ID, MT, OR, WA, YK; 522; 1800-2019)
Peltigera scabrosa (AK, BC, MT, OR, WA, YK; 309; 1800-2015)
Peltigera venosa (AK, BC, ID, MT, OR, WA, YK; 224; 1904-2015)
Peltigera viride (BC; 2; 1982-1983)
Peltigera viridis (BC; 3; 1983)
Peltigeria venosa (BC; 1; 1984)
Peltula euploca (BC, ID, OR; 8; 1978-1995)
Pertusaria alaskensis (AK, BC; 4; 1965-2000)
Pertusaria albescens (WA; 2; 1998-2001)
Pertusaria amara (AK, BC, ID, OR, WA; 154; 1892-2012)
var. flotowiana (WA; 7; 1976-1982)
Pertusaria borealis (AK, BC, OR, WA; 21; 1974-2015)
Pertusaria bryontha (AK, WA; 21; 1970-2014)
Pertusaria carneolutea (WA; 2; 1883-1894)
Pertusaria carneopallida (AK, BC; 25; 1950-2007)
Pertusaria chiodectonoides (BC; 2; 1974)
Pertusaria communis (AK; 1; 1932)
Pertusaria coriacea (AK; 7; 1958-2014)
Pertusaria dactylina (AK, BC, YK; 95; 1800-2016)
Pertusaria excludens (AK; 2; 1967)
Pertusaria geminipara (AK, BC; 20; 1976-2014)
Pertusaria glaucomela (BC, OR, WA; 17; 1906-2000)
Pertusaria globularis (AK; 1; 1940)
Pertusaria glomerata (AK; 1; 1932)
Pertusaria hemisphaerica (WA; 1; 1995)
Pertusaria hymenea (AK; 2; 1945)
Pertusaria leioplaca (BC, OR, WA; 10; 1912-1998)
Pertusaria mccroryae (WA; 1; 2012)
Pertusaria multipuncta (AK, BC, OR, WA; 30; 1913-1987)
Pertusaria multipunctoides (AK; 1; 1999)
Pertusaria octomela (AK; 18; 1970-1993)
Pertusaria oculata (AK; 27; 1969-2014)
Pertusaria ophtalmiza (BC; 6; 1950-1970)
Pertusaria ophthalmiza (AK, BC, ID, MT, OR, WA; 72; 1913-2012)
Pertusaria orbiculata (WA; 1; ?)
Pertusaria panyrga (AK, BC; 32; 1971-2014)
Pertusaria pertusa (AK; 5; 1950-1955)
Pertusaria pocillaria (AK; 9; 1913-1957)
Pertusaria pocillum (AK, BC, WA; 3; 1956-1957)
Pertusaria pseudocorallina (WA; 7; 1996)
Pertusaria pupillaria (BC; 1; 1995)
Pertusaria pustulata (WA; 4; 1928-1994)
Pertusaria rhodocarpa (AK; 2; 1955-1956)
Pertusaria sommerfeltii (AK, BC, OR; 21; 1966-2014)
Pertusaria stenhammarii (BC; 2; 1975-1995)
Pertusaria subambigens (AK, BC, ID, OR, WA; 145; 1892-2015)
Pertusaria subdactylina (AK; 11; 1992-2004)
Pertusaria subobducens (AK; 43; 1958-2014)
Pertusaria suboculata (AK, BC, OR; 4; 1967-1996)
Pertusaria sulcata (AK; 1; 1955)
Pertusaria trachythallina (AK; 2; 1967)
Pertusaria trochiscea (AK; 1; 2014)
Pertusaria velata (AK, OR, WA; 14; 1921-2014)
Phacopsis oxyspora (ID, OR; 11; 1977-2000)
Phacopsis vulpina (ID; 1; 1999)
Phaeocalicium betulinum (WA; 1; 1987)
Phaeocalicium compressulum (BC, MT, OR, WA; 21; 1977-2015)
Phaeocalicium interruptum (WA; 16; 1998-2013)
Phaeocalicium populneum (BC, WA; 15; 1969-2013)
Phaeocalicium tibetanicum (WA; 3; 2004-2006)
Phaeographis dendritica (WA; 2; 1994)
Phaeographis inusta (WA; 1; 1891)
Phaeographis smithii (WA; 1; 1998)
Phaeophyscia adiastola (BC, OR; 3; 1969-2000)
Phaeophyscia ciliata (AK, BC, ID, WA; 16; 1800-2015)
Phaeophyscia constipata (AK, BC, ID, MT, WA, YK; 48; 1800-2011)
Phaeophyscia decolor (AK, BC, MT, OR, WA; 26; 1800-2013)
Phaeophyscia endococcina (AK, BC, WA; 26; 1800-2003)
Phaeophyscia hirsuta (AK, BC, ID, MT, OR, WA; 29; 1991-2012)
Phaeophyscia hirtella (AK, ID; 3; 1991-2011)
Phaeophyscia hispidula (AK, BC; 5; 1965-1981)
ssp. limbata (BC; 1; 1981)
Phaeophyscia kairamoi (AK, BC, MT; 40; 1800-2013)
Phaeophyscia nigricans (BC, ID, MT, OR, WA; 15; 1965-2011)
Phaeophyscia orbicularis (AK, BC, ID, MT, OR, WA; 144; 1800-2014)
Phaeophyscia sciastra (AK, BC, ID, MT, OR, WA; 112; 1800-2013)
Phaeopyxis punctum (BC, WA; 2; 1994-2001)
Phaeorrhiza nimbosa (AK, BC, ID, MT, WA; 42; 1970-2016)
Phaeorrhiza sareptana (AK, BC, ID, MT, OR, WA; 29; 1981-2018)
var. sphaerocarpa (OR; 1; ?)
Phaeosporobolus alpinus (MT; 1; 1986)
Phaephyscia orbicularis (BC; 1; 1974)
Phlyctis argena (BC, ID, OR, WA; 15; 1930-2006)
Phlyctis speirea (BC, MT, WA; 4; 1910-1978)
Phyconia perisidiosa (OR; 1; 1990)
Phylliscum demangeonii (AK, BC, OR, WA; 20; 1882-2015)
Phylliscum tenue (AK; 1; 1967)
Physalospora aurantia (MT; 2; 1888)
Physalospora lepachydis (MT; 6; 1898)
Physcia adscendens (AK, BC, ID, MT, OR, WA; 781; 1800-2015)
Physcia aipolia (AK, BC, ID, MT, OR, WA; 452; 1800-2015)
ssp. aipolia (BC; 1; 1982)
ssp. alniphila (BC; 1; 1978)
var. alnophila (BC; 12; 1975-1991)
Physcia albinea (WA; 1; 1994)
Physcia americana (ID, OR, WA; 16; 1994-2014)
Physcia ascendens (BC; 1; 1961)
Physcia biziana (BC, ID, MT, OR, WA; 37; 1969-2012)
Physcia caesia (AK, BC, ID, MT, OR, WA; 244; 1800-2015)
Physcia callosa (ID, WA; 6; 1961-2009)
Physcia cascadensis (BC, WA; 3; 1974-1995)
Physcia dimidiata (BC, ID, MT, OR, WA; 117; 1977-2012)
Physcia dubia (AK, BC, ID, MT, OR, WA, YK; 117; 1800-2013)
Physcia endococina (BC; 1; 1961)
Physcia halei (ID; 1; 1990)
Physcia leptalea (WA; 1; 1987)
Physcia magnussonii (BC, WA; 4; 1980-2000)
Physcia phaea (AK, BC, ID, MT, OR, WA; 43; 1800-2001)
Physcia pseudospeciosa (ID; 1; 1993)
Physcia stellaris (AK, BC, ID, MT, OR, WA; 123; 1893-2015)
Physcia subtilis (ID; 1; 1995)
Physcia tenella (AK, BC, ID, MT, OR, WA; 276; 1913-2020)
Physcia tribacia (BC, OR, WA; 5; 1931-2001)
Physcia vainioi (ID; 1; 1974)
Physciella chloantha (AK, ID, MT; 13; 2001-2019)
Physciella melanchra (ID, MT, OR, WA; 9; 1998-2008)
Physconia americana (AK, ID, MT, OR, WA; 147; 1991-2015)
Physconia detersa (AK, BC, ID, MT, OR, WA; 54; 1800-2013)
Physconia enteroxantha (BC, ID, MT, OR, WA; 274; 1914-2020)
var. papulosa (BC; 1; 1914)
Physconia grisea (BC, OR, WA; 7; 1961-1997)
var. detersa (BC; 2; 1961)
Physconia isidiigera (AK, ID, MT, OR, WA; 153; 1931-2015)
Physconia isidiomuscigena (OR; 1; 2000)
Physconia muscigena (AK, BC, ID, MT, OR, WA, YK; 242; 1800-2017)
Physconia muscigens (BC; 2; 1979)
Physconia perisidiosa (AK, BC, ID, MT, OR, WA; 300; 1958-2015)
Physconia pulverulacea (BC, WA; 3; 1981-1982)
Physconia pulverulucea (BC, WA; 16; 1902-1950)
Pilophoron clavatus (BC; 6; 1964-1981)
Pilophoron nigricaule (BC; 2; 1979-1981)
Pilophorus acicularis (AK, BC, ID, OR, WA; 200; 1889-2015)
Pilophorus cereolus (AK, BC, OR, WA; 49; 1800-1996)
Pilophorus clavatus (AK, BC, OR, WA; 91; 1895-2015)
Pilophorus dovrensis (AK; 3; 1980-1992)
Pilophorus nigricaule (BC; 1; 1980)
Pilophorus nigricaulis (AK, BC, OR, WA; 56; 1957-2015)
Pilophorus robustus (AK; 28; 1800-2005)
Pilophorus vegae (AK; 8; 1998)
Placidiopsis cinerascens (OR; 1; 2007)
Placidiopsis pseudocinerea (AK, BC; 5; 1974-1994)
Placidium lachneum (AK, BC, ID, MT, OR; 59; 1966-2020)
Placidium lacinulatum (BC, ID, MT, OR; 24; 1989-2017)
Placidium pilosellum (AK, OR; 4; 1977-2014)
Placidium rufescens (BC, OR; 3; 1994-2009)
Placidium squamulosum (AK, BC, ID, MT, OR, WA; 53; 1977-2020)
Placopsis cribellans (AK, BC; 5; 1948-2004)
Placopsis gelida (AK, BC, ID, OR, WA; 161; 1892-2014)
Placopsis lambii (AK, WA; 3; 2012-2015)
Placopyrenium heppioides (BC, WA; 9; 1974-1982)
Placynthiella hyporhoda (OR; 1; 1993)
Placynthiella icmalea (AK, ID, MT, OR, WA, YK; 33; 1800-2017)
Placynthiella oligotropha (AK, BC, ID, MT, OR, WA; 20; 1961-2020)
Placynthiella uliginosa (AK, BC, ID, MT, OR, WA, YK; 63; 1800-2014)
Placynthium asperellum (AK, OR, WA; 11; 1960-2014)
Placynthium flabellosum (AK, BC, MT; 7; 1988-2014)
Placynthium nigrum (AK, BC, ID, MT, OR, WA, YK; 63; 1956-2011)
Placynthium pannariellum (BC; 1; 1989)
Placynthium stenophyllum (AK, BC, ID, MT, WA; 6; 1800-2001)
var. isidiatum (ID, MT, WA; 4; 1987-1998)
Placynthium subradiatum (AK; 7; 1992-2005)
Placynthium tantaleum (AK; 1; 1980)
Plastimatia glauca (BC; 9; 1995)
Plastimatia norvegica (BC; 9; 1995)
Platismatia glauca (AK, BC, ID, MT, OR, WA; 4192; 1800-2018)
Platismatia glauce (BC, WA; 50; 1904-1974)
Platismatia herrei (AK, BC, ID, MT, OR, WA; 1934; 1890-2015)
Platismatia lacunosa (AK, BC, ID, OR, WA; 328; 1905-2015)
Platismatia norvegica (AK, BC, OR, WA; 716; 1913-2015)
Platismatia stenophylla (BC, ID, OR, WA; 1265; 1903-2015)
Platismatia stenophyllum (BC; 3; 1991)
Platismatia tuckermanii (AK, BC, WA; 12; 1948-1965)
Platismatia wheeleri (ID, OR; 13; 1995-2013)
Plectocarpon lichenum (BC, MT, OR; 4; 1961-1987)
Pleopsidium chlorophanum (AK, BC, ID, MT, OR, WA, YK; 53; 1912-2001)
Pleopsidium flavum (ID, MT, OR, WA; 10; 1934-2007)
Pletigera collina (BC; 1; 1993)
Polyblastia bryophila (AK; 1; 1967)
Polyblastia cucurbitula (AK; 2; 1899-1978)
Polyblastia cupularis (AK; 1; 1960)
Polyblastia hyperborea (AK; 10; 1978-1984)
Polyblastia sendtneri (AK; 4; 1971-1978)
Polyblastia terrestris (AK; 4; 1980-2002)
Polyblastia theleodes (AK; 9; 1951-1984)
Polycauliona candelaria (AK, BC, ID, MT, OR, WA, YK; 426; 1800-2015)
Polycauliona polycarpa (AK, BC, ID, MT, OR, WA; 800; 1912-2015)
Polychidium contortum (AK, OR, WA; 60; 1994-2015)
Polychidium cortortum (BC; 2; 1996)
Polychidium dendriscum (BC, OR; 25; 1976-1999)
Polychidium muscicola (AK, BC, ID, MT, OR, WA; 161; 1800-2020)
Polycoccum epicrassum (WA; 1; 1927)
Polysporina bicolor (WA; 1; ?)
Polysporina lapponica (AK, WA; 3; 1954-1996)
Polysporina simplex (BC, ID, WA; 5; 1925-1998)
Porina carpinea (WA; 6; 1978-1981)
Porina chlorotica (AK, BC, WA; 16; 1951-1999)
Porina guentheri (BC, WA; 2; 1975-1982)
Porina pacifica (BC; 1; 1967)
Porina radicicola (WA; 1; 1997)
Porocyphus coccodes (AK; 1; 1947)
Porocyphus kenmorensis (BC; 1; 1974)
Porpidia albocaerulescens (AK, BC, OR, WA; 26; 1911-1983)
Porpidia carlottae (BC; 2; 1962-1964)
Porpidia carlottiana (BC, OR, WA; 12; 1983-2003)
Porpidia contraponenda (AK, WA; 5; 1994-1996)
Porpidia crustulata (AK, BC, ID, MT, OR, WA; 29; 1974-2000)
Porpidia flavocaerulescens (AK, BC, WA; 38; 1932-2002)
Porpidia lowiana (AK; 3; 1992-1994)
Porpidia macrocarpa (AK, BC, ID, OR, WA; 46; 1885-2006)
Porpidia melinodes (AK, WA; 9; 1980-1997)
Porpidia soredizodes (BC, WA; 10; 1974-1975)
Porpidia speirea (AK, OR, WA; 13; 1955-2013)
Porpidia superba (AK; 2; 1992)
Porpidia thomsonii (AK, BC, WA; 28; 1929-2015)
Porpidia tuberculosa (AK, BC, WA; 12; 1974-2002)
Pronectria erythrinella (ID, MT; 2; 1982-1987)
Pronectria robergei (MT; 2; 1982-1983)
Protoblastenia calva (AK; 8; 1981-1993)
Protoblastenia incrustans (AK, BC; 5; 1975-1992)
Protoblastenia rupestris (AK, BC, OR; 23; 1800-2012)
Protoblastenia terricola (AK; 4; 1992-1994)
Protoblastonia cinnabarina (BC; 1; 1977)
Protomicarea limosa (AK; 7; 1958-1997)
Protopannaria pezizoides (AK, BC, ID, MT, OR, WA; 231; 1800-2012)
Protoparmelia badia (AK, BC, MT, OR, WA, YK; 41; 1800-2012)
Protoparmelia ochrococca (BC, ID, OR, WA; 17; 1974-2008)
Pseudephebe minuscula (AK, BC, ID, MT, OR, WA, YK; 95; 1800-2018)
Pseudephebe pubescens (AK, BC, ID, MT, OR, WA, YK; 226; 1800-2018)
Pseudocyphellaria anamala (BC; 7; 1992-1994)
Pseudocyphellaria anomala (AK, BC, ID, MT, OR, WA; 789; 1800-2015)
Pseudocyphellaria anthrapsis (ID, OR, WA; 387; 1994-2015)
Pseudocyphellaria anthraspis (AK, BC, ID, OR, WA; 190; 1890-2009)
Pseudocyphellaria aurata (OR, WA; 2; 1986-1992)
Pseudocyphellaria crocata (AK, BC, OR, WA; 328; 1800-2015)
Pseudocyphellaria hawaiiensis (AK, OR; 23; 1996-2015)
Pseudocyphellaria mallota (AK, OR, WA; 9; 2002-2005)
Pseudocyphellaria perpetua (AK, OR, WA; 8; 1800-2015)
Pseudocyphellaria rainierensis (AK, BC, OR, WA; 143; 1948-2014)
Pseudocyphellaris crocata (BC; 3; 1991-1992)
Pseudophebe pubescens (BC; 1; 1961)
Pseudosagedia aenea (OR; 3; 1996)
Pseudosagedia chlorotica (OR; 1; 1996)
Psilolechia clavulifera (WA; 1; 1991)
Psilolechia lucida (AK, BC, WA; 5; 1948-2001)
Psora cerebriformis (BC, ID, MT, OR, WA; 39; 1978-2019)
Psora crenata (AK, ID; 2; 1913-1956)
Psora decipiens (AK, BC, ID, MT, OR, WA, YK; 105; 1800-2011)
Psora glabifera (BC; 1; 1992)
Psora globifera (AK, BC, ID, MT, OR, WA; 71; 1931-2019)
Psora himalayana (AK, BC, ID, MT, WA, YK; 49; 1800-2016)
Psora himalyana (BC; 2; 1992)
Psora luridella (BC, ID, MT, OR, WA; 15; 1931-2010)
Psora montana (BC, ID, MT, OR, WA; 57; 1981-2020)
Psora niponica (OR; 1; ?)
Psora nipponica (AK, BC, ID, MT, OR, WA, YK; 88; 1966-2019)
Psora rubiformis (AK, BC, ID, MT, OR, WA; 39; 1800-2014)
Psora russellii (WA; 2; 1931)
Psora tuckermanii (AK, BC, ID, MT, OR, WA; 93; 1800-2017)
Psoroma hyphorum (BC; 1; 1980)
Psoroma hypnorum (AK, BC, ID, MT, OR, WA, YK; 260; 1800-2015)
var. paleaceum (BC; 1; 1983)
Psoroma tenue (AK; 2; 1800-2013)
Psorotichia nigra (MT; 1; 1961)
Psorotichia schaereri (ID; 1; 2012)
Psorula rufonigra (AK, ID, MT, WA; 15; 1800-1996)
Ptychographa xylographoides (OR; 4; 2000-2016)
Punctelia perreticulata (OR, WA; 8; 2009-2014)
Punctelia stictica (BC, WA; 20; 1961-1998)
Punctelia subpraesignis (WA; 2; 1994-2004)
Punctelia subrudecta (BC, OR, WA; 19; 1977-2005)
Pycnora praestabilis (BC, ID, OR; 6; 1995-2005)
Pycnothelia papillaria (AK; 2; 2011)
Pyrenocollema caesium (WA; 1; 1978)
Pyrenula nitida (WA; 2; 1954-1957)
Pyrenula occidentalis (OR; 6; 1996-1997)
Pyrenula thelomorpha (WA; 1; 1883)
Pyrgidium burnettii (WA; 4; 1997-2005)
Pyrrhospora cinnabarina (AK, BC, ID, MT, OR, WA, YK; 64; 1894-2012)
Pyrrhospora cinnamonea (BC; 8; 1995-1996)
Pyrrhospora elabens (BC, OR, WA; 7; 1995)
Pyrrhospora gowardiana (BC, ID, MT, OR, WA; 17; 1892-2000)
Pyrrhospora quernea (BC, OR, WA; 32; 1906-2015)
Pyrrhospora subcinnabarina (OR; 1; 1968)
Racodium rupestre (BC, OR, WA; 18; 1962-1998)
Ramalina almquistii (AK; 26; 1932-2007)
Ramalina articulata (BC; 1; 1897)
Ramalina dilacerata (AK, BC, ID, MT, OR, WA; 428; 1800-2015)
Ramalina farinacea (AK, BC, ID, MT, OR, WA; 1441; 1800-2015)
Ramalina fraxinea (BC, OR; 2; 1982-1995)
Ramalina geniculata (BC, WA; 2; 1967-1978)
Ramalina inflata (AK, BC, OR; 4; 1976-1992)
Ramalina intermedia (AK, BC; 4; 1992-2014)
Ramalina laevigata (BC; 2; 1914-1915)
Ramalina leptocarpha (OR, WA; 11; 1952-1961)
Ramalina menziesii (AK, BC, OR, WA; 156; 1889-2015)
Ramalina obtusata (AK, BC, ID, MT, OR; 40; 1800-2013)
Ramalina pollinaria (AK, BC, ID, MT, OR, WA; 25; 1940-2008)
Ramalina roesleri (AK, BC, OR, WA; 192; 1800-2015)
Ramalina scoparia (AK; 26; 1957-2001)
Ramalina subamplicata (OR, WA; 3; 2000-2003)
Ramalina subfarinacea (AK; 2; 1956)
Ramalina subleptocarpha (BC, ID, MT, OR, WA; 70; 1889-2011)
Ramalina thraust (BC; 1; 1982)
Ramalina thrausta (AK, BC, ID, MT, OR, WA; 187; 1800-2015)
Ramboldia gowardiana (OR; 1; 2001)
Ramboldia subcinnabarina (OR, WA; 3; 2001-2009)
Rhagadostoma lichenicola (BC; 1; 1994)
Rhizocarpon alpicola (AK, WA; 10; 1800-1993)
Rhizocarpon atroflavescens (AK, MT; 3; 1960-2001)
Rhizocarpon badioatrum (AK, BC, MT, WA; 14; 1928-1992)
Rhizocarpon bolanderi (BC, ID, OR, WA; 19; 1884-2013)
Rhizocarpon chioneum (AK, BC; 30; 1959-2012)
Rhizocarpon cinereonigrum (BC, WA; 2; 1974)
Rhizocarpon concentricum (MT, WA; 4; 1981-1982)
Rhizocarpon cookeanum (OR, WA; 2; 1978-2012)
Rhizocarpon copelandii (AK, WA; 13; 1978-1993)
Rhizocarpon disporum (AK, BC, ID, MT, OR, WA, YK; 47; 1913-2007)
Rhizocarpon distinctum (BC, WA; 8; 1913-1996)
Rhizocarpon eupetraeoides (AK; 24; 1949-2000)
Rhizocarpon eupetraeum (AK, BC, WA; 5; 1948-2004)
Rhizocarpon ferax (AK; 7; 1992-1994)
Rhizocarpon geminatum (AK, BC, ID, MT, OR, WA; 8; 1967-2012)
Rhizocarpon geographicum (AK, BC, ID, MT, OR, WA, YK; 198; 1800-2009)
Rhizocarpon grande (AK, BC, ID, MT, OR, WA, YK; 54; 1800-2006)
Rhizocarpon hensseniae (AK, BC; 2; 1962-2015)
Rhizocarpon hochstetteri (AK, BC; 9; 1951-1992)
Rhizocarpon inarense (AK, BC, WA; 10; 1959-2001)
Rhizocarpon infernulum (AK; 2; 1973-1978)
Rhizocarpon intermediellum (AK, BC, WA; 8; 1800-1977)
Rhizocarpon jemtlandicum (AK; 5; 1993-1999)
Rhizocarpon lavatum (WA; 1; 1998)
Rhizocarpon lecanorinum (AK, BC, OR, WA; 20; 1948-1998)
Rhizocarpon macrosporum (AK, BC, OR, WA; 21; 1965-2012)
Rhizocarpon malenconianum (ID; 1; 2004)
Rhizocarpon massalongi (AK; 2; 1948)
f. colludens (AK; 1; 1948)
Rhizocarpon melanopthalma (WA; 1; ?)
Rhizocarpon norvegicum (BC; 1; ?)
Rhizocarpon obscuratum (AK, BC, OR, WA; 43; 1912-2000)
Rhizocarpon oederi (WA; 3; 1982-1996)
Rhizocarpon petraeum (AK, BC, OR, WA; 7; 1906-1975)
Rhizocarpon polycarpum (AK, WA; 14; 1976-1998)
Rhizocarpon riparium (AK, BC, OR, WA; 23; 1961-2012)
Rhizocarpon rittokense (AK; 1; 1978)
Rhizocarpon rubescens (AK; 3; 1980-2002)
Rhizocarpon saanaense (AK; 7; 1992-1993)
Rhizocarpon simillimum (WA; 1; 1978)
Rhizocarpon superficiale (AK, BC, YK; 15; 1968-2012)
Rhizocarpon umbilicatum (AK; 5; 1978-1993)
Rhizocarpon vidaleum (WA; 1; 1906)
Rhizocarpon viridiatrum (BC; 11; 1974-1975)
Rhizoplaca chrysocleuca (BC; 1; 1964)
Rhizoplaca chrysoleuca (AK, BC, ID, MT, OR, WA, YK; 135; 1800-2013)
Rhizoplaca haydenii (ID, MT; 68; 1972-2004)
Rhizoplaca melanophthalma (AK, BC, ID, MT, OR, WA, YK; 249; 1800-2020)
Rhizoplaca peltata (BC, ID, MT, OR, WA; 45; 1930-2010)
Rimularia gibbosa (AK; 2; 1980)
Rimularia gyrizans (AK; 2; 1980)
Rimularia impavida (WA; 1; 1978)
Rimularia insularis (AK, MT, OR; 7; 1960-1993)
Rinodina adirondackii (WA; 1; 1978)
Rinodina archaea (AK, BC, OR, WA; 12; 1982-2010)
Rinodina aspersa (WA; 1; 1998)
Rinodina bischoffii (AK, ID; 5; 1992-2002)
Rinodina bolanderi (BC, OR, WA; 6; 1974-1996)
Rinodina caesiocinerea (BC; 1; 1974)
Rinodina californiensis (BC; 1; 1994)
Rinodina capensis (AK; 2; 1963)
Rinodina colobina (MT, WA; 2; 1995-2006)
Rinodina confragosa (BC, WA; 3; 1975-1995)
Rinodina conradii (AK, OR, WA; 6; 1978-2014)
Rinodina degeliana (BC; 2; 1995-2001)
Rinodina disjuncta (BC, OR, WA; 7; 1989-1999)
Rinodina efflorescens (BC; 2; 2001)
Rinodina exigua (AK, BC, WA; 13; 1912-2000)
Rinodina farinosa (BC; 1; 1995)
Rinodina flavosoralifera (AK; 1; 1991)
Rinodina gennarii (AK, BC, OR, WA; 38; 1965-1996)
Rinodina griseosoralifera (OR; 4; 1991-1998)
Rinodina guzzinii (ID; 1; 1984)
Rinodina hallii (BC, ID, OR, WA; 28; 1906-1998)
Rinodina hyperborea (AK; 4; 1992-1993)
Rinodina juniperina (ID; 1; 1978)
Rinodina laevigata (BC, ID; 6; 1974-2000)
Rinodina lecideoides (AK; 2; 1966)
Rinodina lobulata (ID; 4; 1999-2001)
Rinodina macrospora (OR; 1; 1995)
Rinodina marysvillensis (BC, OR; 3; 1975)
Rinodina milvina (AK; 2; 1970-1992)
Rinodina mniaraea (AK, BC, MT; 13; 1956-2004)
Rinodina olivaceobrunnea (AK, ID, OR, WA; 6; 1984-2014)
Rinodina oregana (OR; 3; 1899)
Rinodina polyspora (WA; 1; 1983)
Rinodina pyrina (ID, MT, OR, WA; 5; 1969-2012)
Rinodina roscida (AK, WA, YK; 23; 1968-1993)
Rinodina santae-monicae (BC; 1; 1982)
Rinodina sareptana (BC; 2; 1981)
Rinodina septentrionalis (AK, ID, MT, WA; 9; 1982-2009)
Rinodina sheardii (AK; 3; 1999)
Rinodina sophodes (WA; 8; 1894-1956)
Rinodina terrestris (ID, MT, OR, WA; 6; 1977-2013)
Rinodina turfacea (AK, BC, MT, OR, WA, YK; 26; 1963-2012)
Rinodina zwackhiana (BC; 1; 2000)
Ropalospora lugubris (AK; 12; 1951-2012)
Ropalospora viridis (BC; 1; 2010)
Rusavskia elegans (AK, BC, ID, MT, OR, WA, YK; 188; 1800-2018)
Rusavskia sorediata (AK, BC, ID, MT, OR, WA; 38; 1800-2006)
Sagiolechia protuberans (AK, WA; 4; 1966-1992)
Sagiolechia rhexoblephara (AK; 1; 2011)
Sarcogyne privigna (BC; 2; 1974)
var. calcicola (BC; 1; 1974)
Sarcogyne regularis (AK, WA; 6; 1979-2004)
Sarcopyrenia bacillosa (WA; 1; 1978)
Sarcosagium campestre (AK; 1; 2004)
Sarea resinae (BC, OR, WA; 6; 1960-2010)
Schadonia fecunda (AK; 3; 1972)
Schaereria cinereorufa (AK; 1; 2006)
Schaereria corticola (BC; 3; 1991-2001)
Schaereria endocyanea (AK; 2; 1960)
Schaereria fuscocinerea (AK, WA; 4; 1914-1982)
Sclerophora amabilis (BC, MT, OR; 5; 1973-2001)
Sclerophora coniophaea (BC; 7; 1995-1996)
Sclerophora nivea (OR, WA; 6; 1906-1996)
Sclerophora peronella (OR, WA; 25; 1996-2013)
Scoliciosporum chlorococcum (BC, OR, WA; 12; 1982-1997)
Scoliciosporum sarothamni (OR, WA; 7; 1994-1996)
Scoliciosporum umbrinum (BC, WA; 6; 1974-2003)
Scutula stereocaulorum (AK; 2; 1993)
Scytinium californicum (OR; 3; 1976-1979)
Scytinium gelatinosum (OR; 1; 1976)
Scytinium intermedium (AK, WA; 3; 2013-2014)
Scytinium lichenoides (OR, WA; 2; 1977-2013)
Scytinium palmatum (OR; 4; 1974-1977)
Scytinium subaridum (WA; 1; 2013)
Segestria leptalea (OR; 1; 1996)
Sigridea californica (OR, WA; 5; 1990-2000)
Siphula ceratites (AK, BC; 154; 1939-2013)
Solorina bispora (AK, BC, MT, WA, YK; 83; 1800-2015)
Solorina crocea (AK, BC, ID, MT, OR, WA, YK; 302; 1800-2015)
Solorina octospora (AK, BC, YK; 22; 1957-2002)
Solorina saccata (AK, BC, MT, YK; 90; 1800-2015)
Solorina spongiosa (AK, BC, ID, MT, WA; 32; 1907-2015)
Sphaerophhorus globosus (BC; 4; 1974-1975)
Sphaerophorous globosus (BC; 3; 1991)
Sphaerophorous melanocarpus (BC; 1; 1991)
Sphaerophorous tuckermannii (BC; 1; 1991)
Sphaerophorus fragilis (AK, BC, WA; 115; 1800-2019)
Sphaerophorus globorus (BC; 1; 1991)
Sphaerophorus globosus (AK, BC, ID, OR, WA, YK; 2023; 1800-2018)
var. gracilis (AK, BC, OR, WA; 308; 1950-2015)
Sphaerophorus globusus (BC; 5; 1974-1996)
Sphaerophorus melanocarpus (AK, BC; 55; 1916-1993)
Sphaerophorus tuckermannii (BC; 9; 1991-1996)
Spilonema revertens (AK, BC, ID, MT, OR, WA; 35; 1800-2015)
Spilonemella americana (AK, WA; 2; 1991-1998)
Sporastatia polyspora (AK, ID, WA; 5; 1800-2014)
Sporastatia testudinea (AK, MT, OR, WA, YK; 19; 1958-1998)
Sporodictyon cruentum (OR; 1; 1996)
Squamarina cartilaginea (BC, MT; 2; 1979-1994)
Squamarina lentigera (AK, MT, YK; 13; 1958-2011)
Staurothele areolata (ID, MT, OR; 14; 1977-2010)
Staurothele clopimoides (ID, MT, OR; 5; 1986-1992)
Staurothele discedens (AK; 6; 1973-1979)
Staurothele drummondii (AK, BC, ID, MT, OR, WA, YK; 37; 1931-1997)
Staurothele elenkinii (MT, WA; 3; 1978-1995)
Staurothele fissa (BC, MT, OR, WA; 14; 1970-1999)
Staurothele hazslinszki (BC; 3; 1974-1975)
Staurothele lithina (WA; 2; 1931-1940)
Staurothele monicae (ID; 5; 1991-1998)
Staurothele orispruinosa (ID; 2; 1998)
Staurothele rugosa (ID; 1; 1993)
Staurothele rupifraga (BC; 1; 1980)
Steinia geophana (BC; 1; 1950)
Stenocybe clavata (OR, WA; 19; 1998-2015)
Stenocybe fragmenta (WA; 3; 1998-2000)
Stenocybe major (BC, WA; 91; 1974-2013)
Stenocybe pullatula (BC, WA; 17; 1980-2013)
Stereocaula grande (BC; 1; 1978)
Stereocaulon alpinum (AK, BC, ID, MT, OR, WA, YK; 249; 1800-2018)
Stereocaulon apocalypticum (AK; 28; 1800-2007)
Stereocaulon arcticum (AK, BC; 2; 1976-1993)
Stereocaulon arenarium (AK; 12; 1800-2006)
Stereocaulon botryosum (AK, BC, WA; 35; 1800-2007)
Stereocaulon condensatum (AK, BC, YK; 20; 1965-2014)
Stereocaulon condesatum (BC; 2; 1994)
Stereocaulon coniophyllum (AK, BC; 3; 1975-2007)
Stereocaulon dactylophyllum (AK, BC; 18; 1800-1965)
Stereocaulon glareosum (AK, BC, ID, MT, OR, WA, YK; 86; 1800-2015)
Stereocaulon grande (AK, BC, MT, OR, WA; 82; 1800-2010)
Stereocaulon groenlandicum (AK; 10; 1961-2007)
Stereocaulon incrustatum (AK; 3; 1964-1967)
Stereocaulon intermedium (AK, BC, OR, WA; 36; 1800-2001)
Stereocaulon myriocarpum (BC, WA; 8; 1958-1997)
Stereocaulon nivale (BC, OR, WA; 8; 1948-2012)
Stereocaulon octomerum (AK; 1; 1994)
Stereocaulon paschale (AK, BC, ID, MT, OR, WA, YK; 372; 1800-2019)
Stereocaulon pileatum (BC; 1; 1976)
Stereocaulon rivulorum (AK, BC, OR, WA, YK; 79; 1800-2011)
Stereocaulon sasakii (AK, BC, ID, OR, WA, YK; 54; 1800-2002)
var. simplex (WA; 6; 1994-1998)
var. tomentosoides (BC, OR, WA; 10; 1964-2002)
Stereocaulon saviczii (AK; 9; 1991-2015)
Stereocaulon saxatile (AK, BC, WA, YK; 16; 1960-2008)
Stereocaulon spathuliferum (AK, BC, OR, WA; 14; 1895-1998)
Stereocaulon sterile (AK, OR, WA; 18; 1992-2014)
Stereocaulon subcoralloides (AK, BC; 32; 1951-2014)
Stereocaulon symphycheilum (AK; 25; 1991-2007)
Stereocaulon tomentosum (AK, BC, ID, MT, OR, WA, YK; 388; 1800-2015)
Stereocaulon vesuvianum (AK, BC, OR, WA; 78; 1913-2015)
Sterocaulon albicans (MT; 1; 1962)
Sticta arctica (AK; 26; 1800-2018)
Sticta beauvoisii (WA; 2; 2007)
Sticta fulginosa (OR; 1; 1990)
Sticta fuliginosa (AK, BC, OR, WA; 565; 1912-2015)
Sticta limbata (AK, BC, OR, WA; 330; 1800-2015)
Sticta oroborealis (BC, OR, WA; 7; 1992-2002)
Sticta weigellii (BC; 3; 1996)
Sticta wrightii (AK, BC, WA; 3; 1800-2003)
Stigmidium marinum (WA; 4; 1978-1979)
Strangospora microhaema (WA; 1; 1995)
Strangospora moriformis (OR; 1; 1969)
Sulcaria badia (OR; 22; 1993-2001)
Synalissa symphorea (AK, BC; 2; 2000-2014)
Szczawinskia tsugae (WA; 1; 1999)
Teloschistes chrysophthalmus (OR; 1; ?)
Teloschistes contortuplicatus (BC; 4; 1994-2001)
Teloschistes flavicans (OR; 10; 1976-2001)
Tephrolema atra (BC; 1; 1974)
Tephromela atra (AK, BC, ID, OR, WA; 70; 1892-2009)
Tetramelas chloroleucus (MT; 1; 2010)
Tetramelas geophila (BC, MT, WA; 6; 1975-1989)
Texosporium sancti-jacobi (ID, OR, WA; 29; 1980-2018)
Thamnolia subuliformis (AK, BC, ID, MT, OR, WA, YK; 267; 1800-2015)
Thamnolia vermicularis (AK, BC, OR, WA, YK; 472; 1800-2018)
ssp. subuliformis (BC; 2; 1978)
var. subuliformis (BC; 7; 1961-1992)
Thamolia vermicularis (BC; 1; 1985)
Thelenella muscorum (BC, ID, OR; 32; 1977-2019)
var. octospora (BC, ID, OR; 30; 1977-2017)
Thelidium areolatum (AK; 1; 1945)
Thelidium decipiens (BC; 1; 1980)
Thelidium incavatum (BC; 1; 1980)
Thelidium olivaceum (WA; 1; 1976)
Thelidium papulare (AK; 2; 1973)
Thelidium scotodes (AK; 2; ?)
Thelocarpon epibolum (BC; 1; 1980)
Thelocarpon laureri (OR; 1; 1996)
Thelomma bolanderi (BC; 2; 1967)
Thelomma mammasum (BC; 3; 1974-1975)
Thelomma mammosum (BC, OR, WA; 18; 1957-1979)
Thelomma occidentale (AK, BC, OR, WA; 18; 1959-2012)
Thelomma ocellatum (BC, ID, MT, OR, WA; 46; 1992-2020)
Thelopsis melathelia (AK; 1; 2012)
Thelotrem lepadinum (OR; 1; 1892)
Thelotrema lacteum (ID; 1; 2013)
Thelotrema lepadinum (AK, BC, OR, WA; 108; 1913-2012)
Thelotrema lepadium (BC; 1; 1981)
Thelotrema subtile (WA; 1; 1987)
Thelotrema suecicum (BC; 1; 2010)
Thelotrima lepadinum (BC, WA; 64; 1913-1973)
Thermutis velutina (AK, BC, WA; 6; 1928-2012)
Tholurna disimilis (WA; 1; ?)
Tholurna dissimilis (BC, OR, WA; 143; 1962-2007)
Thornula dissimilis (BC; 1; 1976)
Thrombium epigaeum (AK, BC, ID, MT, OR, WA; 26; 1980-2019)
Thyrea confusa (BC; 1; 2000)
Toninia arctica (AK; 6; 1992-1993)
Toninia aromatica (AK, OR, WA; 3; 1931-2004)
Toninia candida (BC, ID, MT; 11; 1981-1994)
Toninia ruginosa (AK, BC, ID, MT, OR, WA; 29; 1931-2014)
ssp. ruginosa (ID; 2; 1995-2009)
Toninia ruginsoa (BC; 1; 1994)
Toninia sedifolia (AK, BC, ID, MT, OR, WA, YK; 54; 1970-2019)
Toninia squalida (ID, MT, OR, WA; 15; 1912-2008)
Toninia synocomista (AK; 1; ?)
Toninia tristis (AK, BC, ID, OR, WA; 7; 1981-2002)
ssp. asiae-centralis (ID, WA; 2; 1997-2002)
Trapelia coarctata (AK, BC, ID, OR, WA; 32; 1906-2009)
Trapelia corticola (BC, OR, WA; 5; 1992-2010)
Trapelia glebulosa (OR, WA; 3; 1996-2009)
Trapeliopsis bisorediata (ID, OR, WA; 19; 1991-2019)
Trapeliopsis californica (OR; 1; 1997)
Trapeliopsis flexuosa (AK, BC, ID, MT, OR, WA; 19; 1975-2014)
Trapeliopsis granulosa (AK, BC, ID, MT, OR, WA, YK; 237; 1914-2018)
Trapeliopsis pseudogranulosa (BC, OR, WA; 19; 1992-2010)
Trapeliopsis steppica (ID, WA; 13; 1986-2017)
Trapeliopsis viridescens (AK, BC, WA; 18; 1914-2012)
Trapeliopsis wallrothii (AK, BC, WA; 14; 1951-1999)
Tremolecia atrata (AK, BC, ID, MT, WA, YK; 30; 1958-1997)
Trimmatothele umbellulariae (WA; 1; 1958)
Tuckermanella coralligera (OR; 1; 1995)
Tuckermanella fendleri (ID, MT, WA; 9; 1977-2010)
Tuckermaniopsis chlorophylla (BC; 2; 1996)
Tuckermanniopsis chlorophylla (BC; 1; 1997)
Tuckermanniopsis platyphylla (BC; 3; 1981-2000)
Tuckermannopsis americana (AK, BC, OR; 33; 1800-2013)
Tuckermannopsis chlorophylla (AK, BC, ID, MT, OR, WA; 2907; 1800-2015)
Tuckermannopsis ciliaris (AK, BC, OR, WA; 26; 1904-2000)
Tuckermannopsis inermis (AK; 10; 1800-2007)
Tuckermannopsis orbata (AK, BC, ID, MT, OR, WA; 2024; 1800-2015)
Tuckermannopsis platyphylla (AK, BC, ID, MT, OR, WA; 2134; 1900-2015)
Tuckermannopsis sepincola (AK, BC, ID, MT, OR, WA, YK; 136; 1800-2014)
Tuckermannopsis subalpina (AK, BC, ID, OR, WA, YK; 269; 1800-2015)
Tylothallia biformigera (BC, WA; 5; 1967)
Umbilicaria americana (AK, BC, ID, MT, OR, WA; 23; 1966-2013)
Umbilicaria angulata (AK, BC, OR, WA; 102; 1800-2015)
Umbilicaria arctica (AK, BC, MT, WA, YK; 50; 1800-2015)
Umbilicaria caroliniana (AK; 51; 1800-2009)
Umbilicaria cinereorufescens (AK; 27; 1800-2018)
Umbilicaria cylindria (BC; 1; 1982)
Umbilicaria cylindrica (AK, BC, WA; 82; 1800-2015)
Umbilicaria decussata (BC, ID, MT, WA; 5; 1957-2007)
Umbilicaria deusta (AK, BC, MT, OR, WA, YK; 116; 1800-2015)
Umbilicaria havaasii (AK, BC, OR, WA; 38; 1975-2006)
Umbilicaria hyperborea (AK, BC, ID, MT, OR, WA, YK; 394; 1800-2015)
var. hyperborea (ID, WA; 5; 1996-2006)
Umbilicaria hyporborea (BC; 1; 1996)
Umbilicaria krascheninnikovii (AK, BC, ID, MT, OR, WA; 41; 1800-2012)
Umbilicaria kraschininikouii (BC; 1; 1990)
Umbilicaria lambii (BC, OR, WA; 10; 1975-1998)
Umbilicaria leiocarpa (BC; 2; 1996)
Umbilicaria lyngei (AK, BC; 6; 1800-1992)
Umbilicaria mammulata (BC, WA; 5; 1931-1965)
Umbilicaria muehlenbergii (AK, BC, WA, YK; 14; 1948-2001)
Umbilicaria nylanderiana (AK, WA, YK; 4; 1975-1995)
Umbilicaria phaea (AK, BC, ID, MT, OR, WA; 117; 1927-2014)
Umbilicaria polyphylla (AK, BC, ID, MT, OR, WA; 114; 1926-2015)
Umbilicaria polyrhiza (AK, BC; 5; 1975-2003)
Umbilicaria proboscidea (AK, BC, OR, WA, YK; 270; 1800-2018)
Umbilicaria rigida (AK, BC, WA; 23; 1953-2015)
Umbilicaria torrefacta (AK, BC, ID, MT, OR, WA; 186; 1800-2015)
Umbilicaria trefacta (BC; 1; 1991)
Umbilicaria vellea (AK, BC, ID, MT, OR, WA; 87; 1800-2012)
Umbilicaria vellia (BC; 1; 1976)
Umbilicaria virginis (AK, BC, ID, MT, OR, WA, YK; 93; 1800-2012)
Umbilicoria phaea (WA; 1; 1961)
Unguiculariopsis lettaui (OR, WA; 6; 1998-2000)
Usnea alpina (BC; 2; 1967)
Usnea barbata (BC, ID, MT, OR, WA; 58; 1982-2003)
Usnea capillaris (WA; 8; 1931-1998)
Usnea cavenosa (BC; 1; 1988)
Usnea cavernosa (BC, OR, WA; 44; 1958-2013)
Usnea ceratina (AK, BC, OR, WA; 38; 1896-2000)
Usnea chaetophora (BC, ID, OR, WA; 75; 1889-2015)
Usnea condensata (OR; 1; 1999)
Usnea cornuta (AK, BC, OR, WA; 352; 1964-2015)
Usnea diplotypus (BC, ID, MT, OR, WA; 80; 1994-2015)
Usnea esperantiana (OR, WA; 13; 1994-2005)
Usnea filipendula (AK, BC, ID, MT, OR, WA; 1389; 1913-2015)
Usnea flavocardia (BC, OR, WA; 759; 1961-2015)
Usnea florida (BC; 6; 1916-1982)
Usnea fragilescens (AK, BC, OR, WA; 126; 1913-2015)
var. mollis (AK, BC, OR, WA; 42; 1913-2015)
Usnea fulvoreagens (BC, ID, MT, OR, WA; 82; 1943-2014)
Usnea fulvoreangens (BC; 8; 1916-1967)
Usnea glabrata (AK, BC, ID, MT, OR, WA; 383; 1931-2015)
Usnea glabrescens (AK, BC, ID, OR, WA; 83; 1889-2011)
Usnea graciosa (BC; 1; 1991)
Usnea hirta (AK, BC, ID, MT, OR, WA; 162; 1897-2018)
Usnea lambii (OR; 1; 2009)
Usnea lapponica (AK, BC, ID, MT, OR, WA, YK; 689; 1800-2015)
Usnea leucosticta (WA; 2; 1953-1954)
Usnea logissima (BC; 2; 1978)
Usnea longissima (AK, BC, OR, WA; 330; 1800-2019)
Usnea merrillii (BC; 1; 1995)
Usnea nidulans (BC, OR; 3; 1993-1999)
Usnea occidentalis (BC, MT; 2; 1977-1993)
Usnea pachyclada (OR, WA; 4; 2000-2001)
Usnea pacificana (OR, WA; 193; 1994-2015)
Usnea plicata (BC, OR, WA; 44; 1912-1998)
var. implexa (BC; 2; 1950)
Usnea quasirigida (BC, WA; 9; 1994-1998)
Usnea rubicunda (OR, WA; 13; 1952-2001)
Usnea scabiosa (BC, OR, WA; 14; 1953-2013)
Usnea scabrata (AK, BC, ID, MT, OR, WA; 1027; 1800-2015)
Usnea silescala (OR; 1; 1990)
Usnea silesiaca (BC, OR, WA; 85; 1991-2015)
Usnea sphacelata (OR, WA; 2; 1993-1999)
Usnea spinulifera (OR; 1; 1995)
Usnea squamosa (WA; 1; 2014)
var. subquamosa (WA; 1; 2014)
Usnea stuppea (BC, OR, WA; 26; 1940-1995)
Usnea subfloridana (AK, BC, ID, MT, OR, WA; 505; 1800-2015)
ssp. nova (BC; 1; 1983)
Usnea subfloridiana (BC; 1; 1980)
Usnea subfusca (AK, WA; 4; 1931-1966)
Usnea subgracilis (BC, OR, WA; 15; 1991-2014)
Usnea substerilis (AK, BC, ID, MT, OR, WA; 149; 1800-2015)
Usnea sylvatica (BC; 4; 1982-1983)
Usnea trichodea (AK, BC, WA; 3; 1953-1983)
Usnea tristis (WA; 1; ?)
Usnea wasmuthii (ID, OR, WA; 19; 1998-2014)
Varicellaria rhodocarpa (AK, BC, WA, YK; 15; 1986-2004)
Verrucaria aethiobola (AK, BC, WA; 6; 1912-1998)
Verrucaria amphibia (WA; 11; 1977-1979)
Verrucaria arctica (AK; 1; 1978)
Verrucaria ceuthocarpa (WA; 5; 1978)
Verrucaria degelii (WA; 11; 1977-1978)
Verrucaria devergens (AK; 8; 1960-1981)
Verrucaria deversa (AK; 1; 1978)
Verrucaria ditmarsica (WA; 1; 1978)
Verrucaria elaeomelaena (BC, WA; 7; 1965-1982)
Verrucaria erichsenii (AK, BC, WA; 34; 1959-1979)
Verrucaria funckii (AK, ID; 2; 1967-1992)
Verrucaria glaucovirens (MT; 1; 1982)
Verrucaria halizoa (BC, WA; 8; 1978-1981)
Verrucaria hydrela (MT, WA; 4; 1948-1980)
Verrucaria inficiens (ID; 1; 1990)
Verrucaria kootenaica (MT; 1; 1996)
Verrucaria lobata (BC, WA; 3; 1967-1978)
Verrucaria macrostoma (BC; 2; 1974)
Verrucaria margacea (AK, BC, OR, WA; 13; 1911-1996)
Verrucaria maura (AK, BC, OR, WA; 116; 1906-1980)
Verrucaria mucosa (AK, BC, WA; 12; 1955-1979)
Verrucaria muralis (AK, WA; 4; 1977-2012)
Verrucaria nigrescens (AK, OR; 3; 1976-1995)
Verrucaria rupestris (AK; 1; 1981)
Verrucaria sandstedei (WA; 4; 1978-1979)
Verrucaria striatula (WA; 25; 1977-1979)
Verrucaria viridula (BC, ID, OR, WA; 9; 1974-1993)
Vestergrenopsis elaeina (AK; 3; 1963)
Vestergrenopsis isidiata (AK, BC, WA; 13; 1975-2015)
Vezdaea retigera (AK; 1; 2011)
Vezdaea stipitata (OR; 1; ?)
Vulpicida canadensis (BC, ID, MT, OR, WA; 1000; 1882-2017)
Vulpicida pinastri (AK, BC, ID, MT, WA, YK; 217; 1800-2018)
Vulpicida tilesii (AK, BC, MT, YK; 148; 1800-2019)
Waynea californica (OR, WA; 4; 1999-2017)
Xanothoparmelia wyomingica (BC; 1; 1982)
Xanthomendoza borealis (AK, OR; 2; 1998-2004)
Xanthomendoza concinna (OR; 2; 2003)
Xanthomendoza fallax (AK, BC, ID, MT, OR, WA, YK; 308; 1931-2020)
Xanthomendoza fulva (AK, BC, ID, MT, OR, WA; 327; 1977-2017)
Xanthomendoza galericulata (ID, MT, OR; 56; 1998-2012)
Xanthomendoza hasseana (BC, ID, MT, OR, WA; 159; 1970-2017)
Xanthomendoza mendozae (BC, ID, MT, OR, WA; 13; 1977-1998)
Xanthomendoza montana (ID, MT, OR, WA; 54; 1975-2020)
Xanthomendoza oregana (ID, MT, OR, WA; 95; 1972-2015)
Xanthomendoza ulophyllodes (AK, ID, OR; 5; 1993-2005)
Xanthoparmelia angustiphylla (OR; 1; 1994)
Xanthoparmelia camtschadalis (ID, MT; 8; 1979-2007)
Xanthoparmelia chlorochroa (BC, ID, MT; 51; 1954-2012)
Xanthoparmelia coloradensis (BC; 1; 1981)
Xanthoparmelia coloradoensis (AK, BC, ID, MT, OR, WA; 56; 1800-2019)
Xanthoparmelia conspera (BC; 1; 1988)
Xanthoparmelia conspersa (BC, ID, MT, OR, WA; 41; 1928-2014)
Xanthoparmelia cumberlandia (BC, ID, MT, OR, WA; 103; 1889-2020)
Xanthoparmelia hypopsila (BC; 2; 1976)
Xanthoparmelia idahoensis (ID; 8; 1986-2012)
Xanthoparmelia lineola (BC, OR; 3; 1970-1995)
Xanthoparmelia mexicana (BC, ID, OR; 8; 1986-2000)
Xanthoparmelia montanensis (MT; 3; 1977)
Xanthoparmelia mougeotii (BC, WA; 21; 1974-2000)
Xanthoparmelia neochlorochroa (ID, OR; 17; 1987-2017)
Xanthoparmelia neoconspersa (BC; 1; 1983)
Xanthoparmelia neowyomingica (ID; 1; 2016)
Xanthoparmelia norchlorochroa (ID, OR; 30; 1978-2012)
Xanthoparmelia novomexicana (BC, ID; 2; 1957-1981)
Xanthoparmelia plittii (BC, ID, MT, OR, WA; 49; 1968-2020)
Xanthoparmelia somloensis (WA; 1; 1998)
Xanthoparmelia stenophylla (AK, OR; 2; 1960)
Xanthoparmelia subdecipiens (MT; 1; 1977)
Xanthoparmelia subramigera (OR; 1; 1998)
Xanthoparmelia taractica (AK, BC, MT, OR, WA; 7; 1960-1987)
Xanthoparmelia tasmanica (BC, MT, WA; 3; 1977-2001)
Xanthoparmelia vagans (ID; 1; 2016)
Xanthoparmelia wyomigica (BC; 2; 1975)
Xanthoparmelia wyomingica (BC, ID, MT, OR, WA; 49; 1974-2016)
Xanthopsorella texana (AK; 1; 1974)
Xanthoria canadelaria (ID; 1; 1990)
Xanthoria candelaria (WA; 11; 1931-1978)
var. candelaria (WA; 3; 1978)
var. laciniosa (WA; 2; 1932-1940)
var. pygmaea (WA; 6; 1931-1958)
Xanthoria mendozae (BC; 3; 2000)
Xanthoria parietina (BC, ID, OR, WA; 47; 1974-2020)
Xanthoria polycarpa (AK, OR; 4; 1956)
var. finmarkica (AK; 2; 1956)
Xanthoria ramulosa (BC, OR, WA; 39; 1964-2002)
Xanthoria sorediata (ID; 1; ?)
Xylographa abientina (BC; 1; 1982)
Xylographa hians (BC, OR, WA; 25; 1909-1997)
Xylographa opegraphella (AK; 4; 1913-1975)
Xylographa parallela (BC, ID, OR, WA; 44; 1906-2010)
Xylographa soralifera (OR; 1; 2010)
Xylographa trunciseda (WA; 1; 2012)
Xylographa vitiligo (AK, BC, MT, OR, WA; 15; 1967-2003)
Zahlbrucknerella calcarea (WA; 2; 1979)
Zwackhiomyces cladoniae (BC; 1; 1980)
Zwackhiomyces coepulonus (BC; 1; 1994)