Checklist of lichens of Missouri (USA)
Version 31 December 2018
- Acarospora americana H. Magn. - Ladd et al. (1994: 131)
- Acarospora citrina (Tayl.) Zahlbr. - Gier & Kendrick (1973: 207)
- Acarospora glaucocarpa (Wahlenb. ex Ach.) Körb. - Gier & Kendrick (1973: 207)
- Acarospora schleicheri (Ach.) A. Massal. - Gier & Kendrick (1973: 207)
- Amandinea polyspora (Willey) E. Lay & P. May - Ladd et al. (1994: 132 as Buellia polyspora)
- Amandinea punctata (Hoffm.) Coppins & Scheid. - Gier & Kendrick (1973: 208 as Buellia punctata)
- Anaptychia palmulata (Michx.) Vain. - Gier & Kendrick (1973: 207)
- Anisomeridium biforme (Borrer) R. C. Harris - Ladd et al. (1994: 131)
- Anzia colpodes (Ach.) Stizenb. - Hale (1957: 156), Gier & Kendrick (1973: 207)
- Arctomia fascicularis (L.) Otálora & Wedin - Gier & Kendrick (1973: 210 as Collema fasciculare)
- Arthonia atra (Pers.) A. Schneid. - Ladd et al. (1994: 136 as Opegrapha atra)
- Arthonia complanata Fée - Gier & Kendrick (1973: 208)
- Arthonia punctiformis Ach. - Ladd et al. (1994: 131)
- Arthonia rubella (Fée) Nyl. - Ladd et al. (1994: 131)
- Arthonia susa R. C. Harris & Lendemer - Ladd et al. (1994: 131 erroneously as Arthothelium taediosum)
- Arthothelium hallii (Tuck.) Zahlbr. - Gier & Kendrick (1973: 208)
- Arthothelium spectabile A. Massal. - Ladd et al. (1994: 131)
- Aspicilia verrucigera Hue - Ladd et al. (1994: 132)
- Bacidia bagliettoana (A. Massal. & De Not.) Jatta - Gier & Kendrick (1973: 208), Ladd et al. (1994: 132)
- Bacidia polychroa (Th. Fr.) Körb. - Ladd et al. (1994: 132)
- Bacidia rubella (Hoffm.) A. Massal. - Gier & Kendrick (1973: 208)
- Bacidia schweinitzii (Fr. ex Tuck.) A. Schneid. - Gier & Kendrick (1973: 208)
- Bagliettoa calciseda (DC.) Gueidan & Cl. Roux - Gier & Kendrick (1973: 214 as Verrucaria calciseda)
- Bagliettoa marmorea (Scop.) Gueidan & Cl. Roux - Ladd et al. (1994: 138 as Verrucaria marmorea)
- Biatorella hemisphaerica Anzi - Gier & Kendrick (1973: 208 erroneously as Biatorella fossarum)
- Bilimbia sabuletorum (Schreb.) Arnold - Ladd et al. (1994: 135 as Mycobilimbia sabuletorum)
- Blennothallia crispa (Weber ex F. H. Wigg.) Otálora, P. M. Jørg. & Wedin - Gier & Kendrick (1973: 210 as Collema crispum)
- Botryolepraria lesdainii (Hue) Canals, Hernández-Mariné, Gómez-Bolea & Llimona - Ladd et al. (1994: 134 as Lepraria lesdainii)
- Buellia badia Tuck. - Ladd et al. (1994: 132 as Buellia turgescens)
- Buellia disciformis (Fr.) Mudd. - Gier & Kendrick (1973: 208)
- Buellia spuria (Schaer.) Anzi - Gier & Kendrick (1973: 208)
- Buellia stigmatea Tuck. - Gier & Kendrick (1973: 208)
- Calicium salicinum Pers. - Gier & Kendrick (1973: 208)
- Calicium tigillare (Ach.) Pers. - Gier & Kendrick (1973: 210 as Cyphelium tigillare)
- Callome multipartitum (Sm.) Otálora, P. M. Jørg. & Wedin - Gier & Kendrick (1973: 210 as Collema multipartitum)
- Caloplaca atroalba (Tuck.) Zahlbr. - Gier & Kendrick (1973: 210 as Lecania perproxima), Ladd et al. (1994: 132)
- Caloplaca cerina (Ehrh.) Th. Fr. - Gier & Kendrick (1973: 208)
- Caloplaca cinnabarina (Ach.) Zahlbr. - Gier & Kendrick (1973: 208)
- Caloplaca microphyllina (Tuck.) Hasse - Gier & Kendrick (1973: 208)
- Caloplaca saxicola (Hoffm.) Nordin - Gier & Kendrick (1973: 208 as Caloplaca murorum)
- Caloplaca spaldingii Zahlbr. - Gier & Kendrick (1973: 208)
- Caloplaca ulmorum (Fink) Fink - Gier & Kendrick (1973: 208)
- Candelaria concolor (Dicks.) B. Stein - Hale (1957: 156), Gier & Kendrick (1973: 208 as Candelaria concolor var. effusa)
- Candelaria fibrosa (Fr.) Müll. Arg. - Hale (1957: 156), Gier & Kendrick (1973: 208)
- Candelariella aurella (Hoffm.) Zahlbr. - Gier & Kendrick (1973: 208)
- Canoparmelia caroliniana (Nyl.) Elix & Hale - Gier & Kendrick (1973: 212 as Parmelia caroliniana)
- Carbonicola anthracophila (Nyl.) P. James & Gotth. Schneider - Ladd et al. (1994: 134 as Hypocenomyce anthracophila)
- Chaenotheca brunneola (Ach.) Müll. Arg. - Ladd et al. (1994: 133)
- Chrysothrix insulizans R. C. Harris & Ladd - Harris & Ladd (2008: 35 Type in New York, USA NY)
- Circinaria contorta (Hoffm.) A. Nordin, Savic & Tibell - Gier & Kendrick (1973: 211 as Lecanora contorta)
- Cladonia apodocarpa Robb. - Gier & Kendrick (1973: 208)
- Cladonia arbuscula (Wallr.) Flot. subsp. arbuscula - Gier & Kendrick (1973: 208 as Cladina arbuscula)
- Cladonia atlantica A. Evans - Ladd & Wilhelm (1986: 15)
- Cladonia bellidiflora (Ach.) Schaer. - Gier & Kendrick (1973: 208)
- Cladonia caespiticia (Pers.) Flörke - Gier & Kendrick (1973: 208)
- Cladonia cylindrica (A. Evans) A. Evans - Ladd et al. (1994: 133)
- Cladonia peziziformis (With.) J. R. Laundon - Gier & Kendrick (1973: 208 as Cladonia capitata), Gier & Kendrick (1973: 208 as Cladonia capitata var. dissectula), Gier & Kendrick (1973: 208 as Cladonia capitata f. imbricatula), Gier & Kendrick (1973: 209 as Cladonia capitata f. pallida), Gier & Kendrick (1973: 209 as Cladonia capitata f. stenophyllodes)
- Cladonia cariosa (Ach.) Spreng. - Gier & Kendrick (1973: 209), Ladd & Wilhelm (1986: 16)
- Cladonia caroliniana Schwein. ex Tuck. - Gier & Kendrick (1973: 209)
- Cladonia chlorophaea (Flörke ex Somm.) Spreng. - Gier & Kendrick (1973: 209)
- Cladonia coniocraea (Flörke) Spreng. - Gier & Kendrick (1973: 209)
- Cladonia cristatella Tuck. - Gier & Kendrick (1973: 209)
- Cladonia cryptochlorophaea Asahina - Gier & Kendrick (1973: 209)
- Cladonia didyma (Fée) Vain. - Gier & Kendrick (1973: 209)
- Cladonia fimbriata (L.) Fr. - Gier & Kendrick (1973: 209)
- Cladonia floerkeana (Fr.) Flörke - Gier & Kendrick (1973: 209)
- Cladonia furcata (Huds.) Schrad. - Gier & Kendrick (1973: 209)
- Cladonia grayi Merr. ex Sandst. - Gier & Kendrick (1973: 209)
- Cladonia leporina Fr. - Ladd & Wilhelm (1986: 16)
- Cladonia macilenta Hoffm. - Gier & Kendrick (1973: 209)
- Cladonia mateocyatha Robb. - Gier & Kendrick (1973: 209)
- Cladonia parasitica (Hoffm.) Hoffm. - Gier & Kendrick (1973: 209)
- Cladonia petrophila R. C. Harris - Harris (1992: 329 First record)
- Cladonia ramulosa (Flörke) Fr. - Gier & Kendrick (1973: 209 as Cladonia pityrea)
- Cladonia pyxidata (L.) Hoffm. - Gier & Kendrick (1973: 209)
- Cladonia rei Schaer. - Ladd & Wilhelm (1986: 16)
- Cladonia robbinsii A. Evans - Gier & Kendrick (1973: 209)
- Cladonia simulata Robbins - Ladd et al. (1994: 133)
- Cladonia squamosa (Scop.) Hoffm. - Gier & Kendrick (1973: 209)
- Cladonia subcariosa Nyl. - Gier & Kendrick (1973: 209 as Cladonia clavulifera), Gier & Kendrick (1973: 209 as Cladonia polycarpoides), Gier & Kendrick (1973: 209), Ladd & Wilhelm (1986: 16 as Cladonia polycarpia)
- Cladonia subtenuis (Abbayes) Mattick - Gier & Kendrick (1973: 208 as Cladina subtenuis)
- Cladonia subulata (L.) Wigg. - Gier & Kendrick (1973: 209)
- Cladonia symphycarpa (Ach.) Fr. - Gier & Kendrick (1973: 209)
- Clauzadea monticola (Ach.) Hafellner & Bellem. - Ladd et al. (1994: 133)
- Coccocarpia palmicola (Spreng.) Arv. & D. J. Galloway - Gier & Kendrick (1973: 210 as Coccocarpia cronia)
- Collema flaccidum (Ach.) Ach. - Gier & Kendrick (1973: 210)
- Collema nigrescens (Huds.) DC. - Gier & Kendrick (1973: 210)
- Collema pustulatum Ach. - Ladd et al. (1994: 133)
- Cystocoleus ebeneus (Dillwyn) Thwaites - Ladd et al. (1994: 133)
- Dermatocarpon americanum Vain. - Heidmarsson (2003: 466)
- Dermatocarpon arenosaxi Amtoft - Amtoft et al. (2008: 24 Type in New York, USA NY)
- Dermatocarpon dolomiticum Amtoft - Amtoft (2008: 27 Protologue) Type in New York, USA NY
- Dermatocarpon luridum (With.) J. R. Laundon - Gier & Kendrick (1973: 210 as Dermatocarpon fluviatile)
- Dermatocarpon miniatum (L.) W. Mann - Gier & Kendrick (1973: 210)
- Dermatocarpon tomentulosum Amtoft - Amtoft (2006: 184)
- Dimelaena oreina (Ach.) Norm. - Gier & Kendrick (1973: 210)
- Diploschistes actinostomus (Pers.) Zahlbr. - Ladd et al. (1994: 133)
- Diploschistes muscorum (Scop.) R. Sant. subsp. muscorum (Scop.) R. Sant. - Ladd et al. (1994: 133)
- Diploschistes scruposus (Schreb.) Norman - Ladd et al. (1994: 133)
- Dirinaria frostii (Tuck.) Hale & W. L. Culb. - Gier & Kendrick (1973: 210), Gier & Kendrick (1973: 213 as Physcia frostii)
- Dirinaria picta (Sw.) Clem. & Shear - Ladd & Wilhelm (1986: 17)
- Enchylium bachmanianum (Fink) Otálora, P. M. Jørg. & Wedin - Fink (sub Collemodes bachmanianum), Gier & Kendrick (1973: 210 as Collema tenax var. bachmanianum)
- Enchylium conglomeratum (Hoffm.) Otálora, P. M. Jørg. & Wedin - Hale (1957: 156 as Collema conglomeratum var. crassiusculum), Gier & Kendrick (1973: 210 as Collema conglomeratum var. crassiusculum), Gier & Kendrick (1973: 210 as Collema conglomeratum)
- Enchylium limosum (Ach.) Otálora, P.M. Jørg. & Wedin - Gier & Kendrick (1973: 210 as Collema limosum)
- Enchylium polycarpon (Hoffm.) Otálora, P. M. Jørg. & Wedin - Gier & Kendrick (1973: 210 as Collema polycarpon)
- Enchylium tenax (Sw.) Gray - Gier & Kendrick (1973: 210 as Collema tenax)
- Endocarpon diffractellum (Nyl.) Gueidan & Cl. Roux - Gier & Kendrick (1973: 214 as Staurothele diffractella)
- Ephebe lanata (L.) Vain. - Gier & Kendrick (1973: 210)
- Flavoparmelia caperata (L.) Hale - Hale (1957: 157 as Parmelia caperata), Gier & Kendrick (1973: 212 as Parmelia caperata)
- Flavoplaca citrina (Hoffm.) Arup, Frödén & Søchting - Gier & Kendrick (1973: 208 as Caloplaca citrina)
- Flavopunctelia soredica (Nyl.) Hale - Ladd & Wilhelm (1986: 17)
- Fuscidea recensa (Stirt.) Hertel, V. Wirth & Vezda - Ladd et al. (1994: 133)
- Fuscopannaria leucosticta (Tuck. ex E. Michener) P. M. Jørg. - Gier & Kendrick (1973: 212 as Pannaria leucosticta)
- Gassicurtia vernicoma Marbach - Ladd et al. (1994: 132 as Buellia vernicoma)
- Gomphillus americanus Essl. - Ladd et al. (1994: 134)
- Graphis scripta (L.) Ach. - Gier & Kendrick (1973: 210)
- Graphis sophisticascens Nyl. - Nylander (xx: xx Protologue), Gier & Kendrick (1973: 210 as Graphina sophisticascens) Type
- Gyalecta jenensis (Batsch) Zahlbr. - Ladd et al. (1994: 134)
- Gyalideopsis ozarkensis Lücking, W. R. Buck & R. C. Harris - Lücking et al. (xx: xx Protologue) Type
- Gyalolechia flavorubescens (Huds.) Søchting, Frödén & Arup - Gier & Kendrick (1973: 208 as Caloplaca aurantiaca)
- Heppia lutosa (Ach.) Nyl. - Gier & Kendrick (1973: 210 as Heppia despreauxii)
- Hertelidea botryosa (Fr.) Printzen & Kantvilas - Ladd et al. (1994: 134 as Lecidea botryosa)
- Heterodermia albicans (Pers.) Swinscow & Krog - Gier & Kendrick (1973: 210 as Heterodermia domingensis)
- Heterodermia echinata (Tayl.) W. L. Culb. - Gier & Kendrick (1973: 210)
- Heterodermia galactophylla (Tuck.) W. L. Culb. - Hale (1957: 156 as Anaptychia galactophylla), Gier & Kendrick (1973: 210)
- Heterodermia granulifera (Ach.) W. L. Culb. - Hale (1957: 156 as Anaptychia granulifera), Gier & Kendrick (1973: 210)
- Heterodermia hypoleuca (Mühl.) A. Massal. - Hale (1957: 156 as Anaptychia hypoleuca), Gier & Kendrick (1973: 210)
- Heterodermia obscurata (Nyl.) Trev. - Hale (1957: 156 as Anaptychia heterochroa), Gier & Kendrick (1973: 210)
- Heterodermia speciosa (Wulfen) Trevisan - Hale (1957: 156 as Anaptychia speciosa)
- Hyperphyscia syncolla (Tuck. ex Nyl.) Kalb - Gier & Kendrick (1973: 214 as Physciopsis syncolla)
- Hypocenomyce scalaris (Ach. ex Lilj.) M. Choisy - Gier & Kendrick (1973: 211 as Lecidea scalaris)
- Hypotrachyna horrescens (Tayl.) Krog & Swinscow - Gier & Kendrick (1973: 212 as Parmelia horrescens)
- Hypotrachyna laevigata (Sm.) Ach. - Gier & Kendrick (1973: 212 as Parmelia laevigata)
- Hypotrachyna livida (Tayl.) Hale - Gier & Kendrick (1973: 212 as Parmelia livida)
- Hypotrachyna minarum (Vain.) Krog & Swinscow - Gier & Kendrick (1973: 212 as Parmelia dissecta)
- Hypotrachyna osseoalba (Vain.) Park & Hale - Gier & Kendrick (1973: 212 as Parmelia formosana)
- Hypotrachyna pustulifera (Hale) Skorepa - Ladd & Wilhelm (1986: 17)
- Lathagrium auriforme (With.) Otálora, P. M. Jørg. & Wedin - Gier & Kendrick (1973: 210 as Collema auriculatum)
- Lathagrium fuscovirens (With.) Otálora, P. M. Jørg. & Wedin - Gier & Kendrick (1973: 210 as Collema tuniforme)
- Lecania erysibe (Ach.) Mudd - Gier & Kendrick (1973: 210)
- Lecania fuscella (Schaer.) Körb. - Gier & Kendrick (1973: 210 as Lecania syringea)
- Lecanora albella (Pers.) Ach. var. albella - Gier & Kendrick (1973: 211 as Lecanora pallida)
- Lecanora argentata (Ach.) Malme - Gier & Kendrick (1973: 211 as Lecanora subfuscata)
- Lecanora chlarotera Nyl. - Gier & Kendrick (1973: 211 as Lecanora rugosella)
- Lecanora gyrophorica Lendemer - Knudsen & Lendemer (2009: 22 Type in New York, USA NY), Sliwa & Flakus (2011: 4)
- Lecanora hagenii (Ach.) Ach. - Gier & Kendrick (1973: 211)
- Lecanora oreinoides (Körb.) Hertel & Rambold - Gier & Kendrick (1973: 211 as Lecanora tesselina)
- Lecanora sambuci (Pers.) Nyl. - Gier & Kendrick (1973: 211)
- Lecanora saxigena Lendemer & R.C. Harris - Ladd et al. (1994: 134 as Lecanora cinereofusca var. appalachensis)
- Lecanora subpallens Zahlbr. - Ladd et al. (1994: 134 as Lecanora caesiorubella subsp. prolifera)
- Lecanora varia (Hoffm.) Ach. - Gier & Kendrick (1973: 211)
- Lecidea auriculata Th. Fr. subsp. auriculata - Gier & Kendrick (1973: 211)
- Lepra multipuncta (Turner) Hafellner - Gier & Kendrick (1973: 213 as Pertusaria multipuncta)
- Lepra trachythallina (Erichsen) Lendemer & R. C. Harris - Ladd et al. (1994: 136 as Pertusaria trachythallina)
- Lepraria neglecta (Nyl.) Lettau - Ladd et al. (1994: 134 as Lepraria caesioalba), Ladd et al. (1994: 134)
- Lepraria nivalis J. R. Laundon - Ladd et al. (1994: 134)
- Lepraria vouauxii (Hue) R. C. Harris - Ladd et al. (1994: 135 as Leproloma vouauxii)
- Leptogium austroamericanum (Malme) C. W. Dodge - Gier & Kendrick (1973: 211)
- Leptogium azureum (Sw. ex Ach.) Mont. - Ladd et al. (1994: 135)
- Leptogium chloromelum (Sw. ex Ach.) Nyl. - Gier & Kendrick (1973: 211)
- Leptogium corticola (Tayl.) Tuck. - Gier & Kendrick (1973: 211)
- Leptogium cyanescens (Pers.) Körb. - Hale (1957: 157), Gier & Kendrick (1973: 211)
- Leptogium hirsutum Sierk - Gier & Kendr - Gier & Kendrick (1973: 211)
- Leptogium milligranum Sierk - Gier & Kendrick (1973: 211)
- Leptogium saturninum (Dicks.) Nyl. - Hale (1957: 157), Gier & Kendrick (1973: 211)
- Leptorhaphis epidermidis (Ach.) Th. Fr. - Gier & Kendrick (1973: 211)
- Lichenothelia scopularia xxx - Gier & Kendrick (1973: 214 as Rinodina aterrima)
- Lithothelium hyalosporum (Nyl.) Aptroot - Ladd et al. (1994: 135)
- Lobaria quercizans Michx. - Gier & Kendrick (1973: 211)
- Lobaria ravenelii (Tuck.) Yoshim. - Gier & Kendrick (1973: 211 as Lobaria erosa)
- Lobothallia alphoplaca Tuck. - Gier & Kendrick (1973: 211 as Lecanora thamnoplaca)
- Megalaria laureri (Hepp ex Th. Fr.) Hafellner - Gier & Kendrick (1973: 208 as Catillaria laureri)
- Melanohalea exasperata (De Not.) O. Blanco et al. - Gier & Kendrick (1973: 212 as Parmelia exasperata)
- Micarea peliocarpa (Anzi) Coppins & R. Sant. - Ladd et al. (1994: 135)
- Micarea prasina Fr. - Ladd et al. (1994: 135)
- Mycoporum pycnocarpoides Müll. Arg. - Ladd et al. (1994: 135)
- Myelochroa aurulenta (Tuck.) Elix & Hale - Hale (1957: 157 as Parmelia aurulenta), Gier & Kendrick (1973: 212 as Parmelia aurulenta)
- Myelochroa galbina (Ach.) Elix & Hale - Hale (1957: 158 as Parmelia subquercifolia), Gier & Kendrick (1973: 212 as Parmelia galbina)
- Myelochroa obsessa (Ach.) Elix & Hale - Gier & Kendrick (1973: 212 as Parmelia obsessa)
- Nadvornikia sorediata R. C. Harris - Ladd et al. (1994: 135)
- Normandina pulchella (Borrer) Nyl. - Ladd et al. (1994: 136)
- Ochrolechia tartarea (L.) A. Massal. - Gier & Kendrick (1973: 211)
- Opegrapha vulgata auct. non (Ach.) Ach. - Ladd et al. (1994: 136)
- Pannaria conoplea (Ach.) Bory - Jefferson (xx: xx sub Pannaria rubiginosa var. lanuginosa), Jefferson (xx: xx sub Crocynia lanuginosa), Gier & Kendrick (1973: 212 as Pannaria pityrea)
- Pannaria lurida (Mont.) Nyl. subsp. lurida - Hale (1957: 157), Gier & Kendrick (1973: 212)
- Pannaria rubiginosa (Thunb. ex Ach.) Delise - Gier & Kendrick (1973: 212)
- Parmelia saxatilis (L.) Ach. - Hale (1957: 158), Gier & Kendrick (1973: 212)
- Parmelia squarrosa Hale - Hale (1971: 29)
- Parmelia sulcata Taylor - Hale (1979: xx map), Ladd et al. (1994: 136)
- Parmelina coleae Argüello & A. Crespo - Gier & Kendrick (1973: 212 erroneously as Parmelia quercina)
- Parmotrema arnoldii (Du Rietz) Hale - Gier & Kendrick (1973: 212 as Parmelia arnoldii)
- Parmotrema austrosinense (Zahlbr.) Hale - Gier & Kendrick (1973: 212 as Parmelia austrosinensis)
- Parmotrema cetratum (Ach.) Hale - Gier & Kendrick (1973: 212 as Parmelia cetrata)
- Parmotrema crinitum (Ach.) M. Choisy - Hale (1957: 157 as Parmelia crinita), Gier & Kendrick (1973: 212 as Parmelia crinita)
- Parmotrema dilatatum (Vain.) Hale - Gier & Kendrick (1973: 212 as Parmelia dilatata)
- Parmotrema hypoleucinum (B. Stein) Hale - Ladd & Wilhelm (1986: 17)
- Parmotrema hypotropum (Nyl.) Hale - Gier & Kendrick (1973: 212 as Parmelia hypotropa)
- Parmotrema madagascariaceum (Hue) Hale - Ladd & Wilhelm (1986: 17)
- Parmotrema perforatum (Jacq.) A. Massal. - Hale (1957: 157 as Parmelia erecta), Hale (1957: 158 as Parmelia perforata), Gier & Kendrick (1973: 212 as Parmelia perforata)
- Parmotrema perlatum (Huds.) M. Choisy - Gier & Kendrick (1973: 212 as Parmelia perlata)
- Parmotrema praesorediosum (Nyl.) Hale - Gier & Kendrick (1973: 212 as Parmelia praesorediosa)
- Parmotrema reticulatum (Taylor) M. Choisy - Hale (1957: 158 as Parmelia reticulata)
- Parmotrema subisidiosum (Müll. Arg.) Hale - Ladd & Wilhelm (1986: 18)
- Parmotrema submarginale (Michx.) DePriest & B. Hale - Gier & Kendrick (1973: 212 as Parmelia michauxiana)
- Parmotrema subtinctorium (Zahlbr.) Hale - Gier & Kendrick (1973: 212 as Parmelia subtinctoria)
- Parmotrema ultralucens (Krog) Hale - Hale (1957: 158 as Parmelia subcrinita auct.), Gier & Kendrick (1973: 212 as Parmelia subcrinita auct.)
- Parmotrema xanthinum (Müll. Arg.) Hale - Gier & Kendrick (1973: 213 as Parmelia xanthina)
- Peltigera canina (L.) Willd. - Gier & Kendrick (1973: 213)
- Peltigera degenii Gyeln. - Gier & Kendrick (1973: 213)
- Peltigera elisabethae Gyeln. - Ladd et al. (1994: 136)
- Peltigera evansiana Gyeln. - Gier & Kendrick (1973: 213)
- Peltigera horizontalis (Huds.) Baumg. - Gier & Kendrick (1973: 213)
- Peltigera phyllidiosa Goffinet & Miadlikowska - Goffinet & Miadlikowska (1999: 255 DNA ITS)
- Peltigera polydactyla (Neck.) Hoffm. var. crassoides Gyeln. - Gier & Kendrick (1973: 213)
- Peltigera polydactyla (Neck.) Hoffm. f. typica (Neck.) Hoffm. - Gier & Kendrick (1973: 213)
- Peltigera polydactyla (Neck.) Hoffm. f. mucrocarpa (Ach.) Merab. - Gier & Kendrick (1973: 213)
- Peltigera praetextata (Flörke) Vain. - Gier & Kendrick (1973: 213)
- Peltigera rufescens (Weis.) Humb. - Gier & Kendrick (1973: 213 as Peltigera canina var. rufescens), Gier & Kendrick (1973: 213)
- Peltigera spuria (Ach.) DC. f. sorediata (Schaer.) Grumm. - Gier & Kendrick (1973: 213)
- Peltula euploca (Ach.) Ozenda & Clauz. - Ladd & Wilhelm (1986: 18)
- Pertusaria leioplaca (Ach.) DC. - Gier & Kendrick (1973: 213)
- Pertusaria macounii (I. M. Lamb) Dibben - Ladd et al. (1994: 136)
- Pertusaria ostiolata Dibben - Ladd et al. (1994: 136)
- Pertusaria pertusa (L.) Tuck. - Gier & Kendrick (1973: 213)
- Pertusaria plittiana Erichsen - Gier & Kendrick (1973: 213)
- Pertusaria propinqua Müll. Arg. - Gier & Kendrick (1973: 213 as Pertusaria marginata)
- Pertusaria pustulata (Ach.) Duby - Gier & Kendrick (1973: 213)
- Pertusaria subpertusa Brodo - Ladd et al. (1994: 136)
- Pertusaria tetrathalamia (Fée) Nyl. - Gier & Kendrick (1973: 213)
- Phaeographis eulectra (Tuck.) Zahlbr. - Gier & Kendrick (1973: 213)
- Phaeophyscia ciliata (Hoffm.) Moberg - Hale (1957: 158 as Physcia ciliata), Gier & Kendrick (1973: 213 as Physcia ciliata)
- Phaeophyscia orbicularis (Neck.) Moberg - Hale (1957: 158 as Physcia orbicularis)
- Phlyctis argena (Spreng.) Flot. - Ladd et al. (1994: 136)
- Physcia adscendens (Fr.) H. Olivier - Ladd et al. (1994: 136)
- Physcia aipolia (Ehrh. ex Humb.) Fürnr. var. aipolia - Hale (1957: 158), Gier & Kendrick (1973: 213)
- Physcia halei J. W. Thomson - Thomson (1963: 57 Type in WIS), Gier & Kendrick (1973: 213)
- Physcia lacinulata Müll. Arg. - Gier & Kendrick (1973: 213)
- Physcia millegrana Degel. - Hale (1957: 158), Gier & Kendrick (1973: 213)
- Physcia orbicularis (Neck.) Poetsch f. orbicularis - Gier & Kendrick (1973: 213)
- Physcia orbicularis (Neck.) Poetsch f. albociliata Thoms. - Gier & Kendrick (1973: 213)
- Physcia orbicularis (Neck.) Poetsch f. rubropulchra Degel. - Gier & Kendrick (1973: 213)
- Physcia setosa (Ach.) Nyl. - Gier & Kendrick (1973: 213)
- Physcia stellaris (L.) Nyl. - Hale (1957: 159), Gier & Kendrick (1973: 213)
- Physcia subtilis Degel. - Gier & Kendrick (1973: 213)
- Physcia syncolla Tuck. - Hale (1957: 159)
- Physcia teretiuscula (Ach.) Lynge - Gier & Kendrick (1973: 213)
- Physcia tribacoides Nyl. - Hale (1957: 159), Gier & Kendrick (1973: 213)
- Physconia leucoleiptes (Tuck.) Essl. - Ladd et al. (1994: 136 as Physconia kurokawae)
- Phyllopsora parvifolia (Pers.) Müll Arg. var. parvifolia - Gier & Kendrick (1973: 211 as Lecidea parvifolia)
- Physconia grisea (Lam.) Poelt - Hale (1957: 158 as Physcia grisea), Gier & Kendrick (1973: 214)
- Physconia pulverulenta (Schreb.) Poelt - Gier & Kendrick (1973: 214)
- Placidium arboreum (Schwein. ex E. Michener) Lendemer - Hale (1957: 157 as Dermatocarpon tuckermanii), Gier & Kendrick (1973: 210 as Dermatocarpon tuckermanii)
- Placidium lachneum (Ach.) A. L. Sm. - Gier & Kendrick (1973: 210 as Dermatocarpon lachneum)
- Placidium rufescens (Ach.) Th. Fr. - Gier & Kendrick (1973: 210 as Dermatocarpon rufescens)
- Placidium squamulosum (Ach.) Breuss - Gier & Kendrick (1973: 210 as Dermatocarpon hepaticum)
- Placynthium nigrum (Huds.) Gray var. nigrum - Gier & Kendrick (1973: 214)
- Placynthium petersii (Nyl.) Burnham - Gier & Kendrick (1973: 214)
- Placynthium stenophyllum (Tuck.) Fink - Gier & Kendrick (1973: 214)
- Polycauliona candelaria (L.) Frödén, Arup, & Søchting - Hale (1957: 159 as Xanthoria candelaria), Gier & Kendrick (1973: 215 as Xanthoria candelaria)
- Polycauliona polycarpa (Hoffm.) Frödén, Arup, & Søchting - Gier & Kendrick (1973: 215 as Xanthoria polycarpa)
- Polysporina simplex (Borrer ex Hook.) Vezda - Gier & Kendrick (1973: 214 as Sarcogyne simplex)
- Porpidia albocaerulescens (Wulf.) Hertel & Knoph - Gier & Kendrick (1973: 211 as Lecidea albocaerulescens)
- Porpidia subsimplex (H. Magn.) Fryday - Ladd et al. (1994: 137 as Porpidia tahawasiana)
- Protoparmeliopsis muralis (Schreb.) M. Choisy var. muralis - Gier & Kendrick (1973: 211 as Lecanora muralis)
- Protoparmeliopsis muralis (Schreb.) M. Choisy var. versicolor (Pers.) Ach. - Gier & Kendrick (1973: 211 as Lecanora versicolor)
- Pseudosagedia cestrensis (Tuck. ex E. Michener) R. C. Harris - Ladd et al. (1994: 137 as Porina cestrensis)
- Psora decipiens (Hedw.) Hoffm. - Gier & Kendrick (1973: 211 as Lecidea decipiens)
- Psora icterica (Mont.) Müll. Arg. - Ladd & Wilhelm (1986: 18), Lendemer (2008: 1)
- Psora rubiformis (Wahlenb. ex Ach.) Wahlenb. - Gier & Kendrick (1973: 211 as Lecidea rubiformis)
- Psorotichia schaereri (A. Massal.) Arnold - Ladd et al. (1994: 137)
- Psorula rufonigra (Tuck.) Gotth. Schneider - Gier & Kendrick (1973: 211 as Lecidea rufonigra), Ladd & Wilhelm (1986: 19)
- Punctelia bolliana (Müll. Arg.) Krog - Hale (1957: 157 as Parmelia bolliana), Gier & Kendrick (1973: 212 as Parmelia bolliana)
- Punctelia borreri (Sm.) Krog - Gier & Kendrick (1973: 212 as Parmelia borreri)
- Punctelia missouriensis G. Wilh. & Ladd - Wilhelm & Ladd (1992: 495 Type in MOR)
- Punctelia rudecta (Ach.) Krog - Hale (1957: 158 as Parmelia rudecta), Gier & Kendrick (1973: 212 as Parmelia rudecta)
- Pyrenopsis melambola Tuck. - Gier & Kendrick (1973: 214)
- Pyrenopsis pulvinata (Schaer.) Th. Fr. - Gier & Kendrick (1973: 214)
- Pyrenula caryae R. C. Harris - Harris (xx: xx Type)
- Pyrenula cuyabensis (Malme) R. C. Harris - Ladd et al. (1994: 137)
- Pyrenula nitida (Weig.) Ach. - Gier & Kendrick (1973: 214)
- Pyrenula ravenelii (Tuck.) R. C. Harris - Ladd et al. (1994: 137)
- Pyrenula subelliptica (Tuck.) R. C. Harris - Ladd et al. (1994: 137)
- Pyxine caesiopruinosa (Tuck.) Imsh. - Gier & Kendrick (1973: 214)
- Pyxine sorediata (Ach.) Mont. - Hale (1957: 159), Gier & Kendrick (1973: 214)
- Ramalina calicaris (L.) Röhl. - Gier & Kendrick (1973: 214), Gier & Kendrick (1973: 214 as Ramalina fastigiata var. subamplicata)
- Ramalina fastigiata (Pers.) Ach. - Hale (1957: 159)
- Ramalina intermedia (Delise ex Nyl.) Nyl. - Ladd & Wilhelm (1986: 19)
- Ramboldia cinnabarina (Sommerf.) Kalb, Lumbsch & Elix - Gier & Kendrick (1973: 211)
- Ramboldia russula (Ach.) Kalb, Lumbsch & Elix - Gier & Kendrick (1973: 211 as Lecidea russula)
- Rhizocarpon concentricum (Dav.) Beltr. - Gier & Kendrick (1973: 214 as Rhizocarpon concentricum)
- Rhizocarpon distinctum Th. Fr. - Ladd et al. (1994: 137)
- Rhizocarpon geographicum (L.) DC. - Gier & Kendrick (1973: 214)
- Rhizocarpon hochstetteri (Körb.) Vain. - Gier & Kendrick (1973: 214)
- Rhizoplaca chrysoleuca (Sm.) Zopf - Gier & Kendrick (1973: 211 as Lecanora chrysoleuca)
- Rhizoplaca melanophthalma (DC.) Leuckert & Poelt - Gier & Kendrick (1973: 211 as Lecanora melanophthalma)
- Rinodina tephraspis (Tuck.) Herre - Gier & Kendrick (1973: 214 as Rinodina kentuckyensis), Ladd et al. (1994: 137)
- Rufoplaca oxfordensis (Fink ex J. Hedrick) Arup, Søchting & Frödén - Gier & Kendrick (1973: 208 as Caloplaca oxfordensis)
- Santessoniella crossophylla (Tuck.) P. M. Jørg. - Lendemer & Anderson (2008: 74)
- Sarcogyne regularis Körb. - Gier & Kendrick (1973: 214)
- Sarcogyne similis H. Magn. - Ladd et al. (1994: 137)
- Scoliciosporum chlorococcum (Stenh.) Vezda - Gier & Kendrick (1973: 208 as Bacidia chlorococca)
- Scoliciosporum umbrinum (Ach.) Arnold - Ladd et al. (1994: 137)
- Scytinium apalachense (Tuck.) Otálora, P. M. Jørg. & Wedin - Gier & Kendrick (1973: 211 as Leptogium apalachense)
- Scytinium dactylinum (Tuck.) Otálora, P. M. Jørg. & Wedin - Gier & Kendrick (1973: 211 as Leptogium dactylinum)
- Scytinium juniperinum (Tuck.) Otálora, P. M. Jørg. & Wedin - Gier & Kendrick (1973: 211 as Leptogium juniperinum)
- Scytinium lichenoides (L.) Otálora, P. M. Jørg. & Wedin - Gier & Kendrick (1973: 211 as Leptogium lichenoides)
- Scytinium subtile (Schrad.) Otálora, P.M. Jørg. & Wedin - Ladd et al. (1994: 135 as Leptogium minutissimum)
- Speerschneidera euploca (Tuck.) Trevisan - Gier & Kendrick (1973: 214), Hafellner & Egan (1981: 22)
- Squamulea galactophylla (Tuck.) Arup, Søchting & Frödén - Gier & Kendrick (1973: 208 as Caloplaca galactophylla)
- Sticta fuliginosa (Dicks.) Ach. - Gier & Kendrick (1973: 214)
- Strangospora moriformis (Ach.) Stein - Ladd et al. (1994: 137)
- Strigula submuriformis (R. C. Harris) R. C. Harris - Ladd et al. (1994: 137)
- Teloschistes chrysophthalmus (L.) Th. Fr. - Gier & Kendrick (1973: 214)
- Tephromela atra (Huds.) Hafellner - Gier & Kendrick (1973: 210 as Lecanora atra)
- Thelocarpon laureri (Flot.) Nyl. - Ladd et al. (1994: 137)
- Thelopsis flaveola Arnold - Ladd et al. (1994: 137)
- Trapelia glebulosa (Sm.) J. R. Laundon - Ladd et al. (1994: 138 as Trapelia involuta)
- Trapeliopsis flexuosa (Fr.) Coppins & P. James - Gier & Kendrick (1973: 211 as Lecidea flexuosa)
- Trypethelium virens Tuck. ex Michener in Darl. - Ladd et al. (1994: 138)
- Tuckermannopsis americana (Spreng.) Hale - Ladd & Wilhelm (1986: 19)
- Tuckermannopsis ciliaris (Ach.) Gyeln. - Ladd & Wilhelm (1986: 19)
- Umbilicaria mammulata (Ach.) Tuck. - Gier & Kendrick (1973: 214)
- Usnea amblyoclada (Müll. Arg.) Zahlbr. - Clerc & Herrera-Campos (1997: 287)
- Usnea angulata Ach. - Ladd & Wilhelm (1986: 20)
- Usnea ceratina Ach. - Gier & Kendrick (1973: 214)
- Usnea florida (L.) Weber ex F. H. Wigg. - Gier & Kendrick (1973: 214)
- Usnea herrei Hale - Gier & Kendrick (1973: 214)
- Usnea hirta (L.) Weber ex F. H. Wigg. subsp. minutissima (Mereschk.) Erichs. - Gier & Kendrick (1973: 214)
- Usnea mutabilis Stirt. - Gier & Kendrick (1973: 214)
- Usnea rubiginea (Michx.) A. Massal. - Gier & Kendrick (1973: 214)
- Usnea strigosa (Ach.) Pers. - Hale (1957: 159), Gier & Kendrick (1973: 214)
- Usnea subfloridana Stirt. - Gier & Kendrick (1973: 214)
- Usnea trichodea Ach. - Gier & Kendrick (1973: 214)
- Usnea tristis Motyka - Gier & Kendrick (1973: 214)
- Vahliella leucophaea (Vahl) P. M. Jørg. - Gier & Kendrick (1973: 212 as Pannaria microphylla)
- Varicellaria velata (Turner) I. Schmitt & Lumbsch - Gier & Kendrick (1973: 213 as Pertusaria velata), Ladd et al. (1994: 136 as Pertusaria pulchella)
- Verrucaria calkinsiana Servit - Ladd et al. (1994: 138)
- Verrucaria fuscella (Turner) Winch - Gier & Kendrick (1973: 214)
- Verrucaria muralis Ach. - Gier & Kendrick (1973: 215 as Verrucaria submuralis)
- Verrucaria nigrescens Pers. - Gier & Kendrick (1973: 214)
- Verrucaria nigrescentoidea Fink ex J. Hedrick - Gier & Kendrick (1973: 214)
- Verrucaria sordida Fink - Gier & Kendrick (1973: 214)
- Vulpicida viridis (Schwein.) J.-E. Mattsson & M. J. Lai - Gier & Kendrick (1973: 208 as Cetraria juniperina), Gier & Kendrick (1973: 208 as Cetraria viridis)
- Xanthomendoza fallax (Hepp ex Arnold) Søchting, Kärnefelt & S. Y. Kondr. - Gier & Kendrick (1973: 215 as Xanthoria fallax)
- Xanthoparmelia angustiphylla (Gyeln.) Hale - Gier & Kendrick (1973: 212 erroneously as Parmelia hypopsila)
- Xanthoparmelia conspersa (Ehrh. ex Ach.) Hale - Gier & Kendrick (1973: 212 as Parmelia conspersa)
- Xanthoparmelia cumberlandia (Gyeln.) Hale - Gier & Kendrick (1973: 212 as Parmelia cumberlandia)
- Xanthoparmelia hypofusca (Gyeln.) Hodkinson & Lendemer - Gier & Kendrick (1973: 213 as Parmelia tasmanica)
- Xanthoparmelia hypomelaena (Hale) Hale - Gier & Kendrick (1973: 212 as Parmelia hypomelaena)
- Xanthoparmelia mexicana (Gyeln.) Hale - Ladd & Wilhelm (1986: 20)
- Xanthoparmelia neotaractica Hale - Ladd et al. (1994: 138)
- Xanthoparmelia piedmontensis (Hale) Hale - Ladd et al. (1994: 138)
- Xanthoparmelia subramigera (Gyeln.) Hale - Gier & Kendrick (1973: 212 as Parmelia subramigera)
- Xanthoria parietina (L.) Th. Fr. - Gier & Kendrick (1973: 215)
- Xylopsora friesii (Ach.) Bendiksby & Timdal - Ladd et al. (1994: 134 as Hypocenomyce friesii)
- Zwackhia viridis (Pers. ex Ach.) Poetsch & Schied. - Gier & Kendrick (1973: 212 as Opegrapha viridis)