| Common Name | Scientific Name | Code |
|---|
| n/a | Amandinea coniops (Wahlenb.) Scheid. & H. Mayrh. | AMCO17 |
| n/a | Amandinea dakotensis (H. Magn.) P. May & Sheard | AMDA |
| n/a | Amandinea leucomela (Imshaug) P. May & Sheard | AMLE3 |
| n/a | Amandinea milliaria (Tuck.) P. May & Sheard | AMMI7 |
| n/a | Amandinea polyspora (Willey) E. Lay & P. May | AMPO8 |
| n/a | Amandinea punctata (Hoffm.) Coppins & Scheid. | AMPU9 |
| n/a | Amandinea Scheid. & H. Mayrh. | AMAND |
| n/a | Buellia adjuncta Th. Fr. | BUAD |
| n/a | Buellia crystallifera (Vainio) Hav. | BUCR |
| n/a | Buellia dispersa A. Massal. | BUDI3 |
| n/a | Buellia imshaugiana R. C. Harris | BUIM3 |
| n/a | Buellia rappii Imshaug ex R. C. Harris | BURA5 |
| n/a | Buelliella physciicola Poelt & Hafellner | BUPH |
| n/a | Dirinaria leopoldii (Stein) D. D. Awasthi | DILE8 |
| n/a | Dirinaria papillulifera (Nyl.) D. D. Awasthi | DIPA24 |
| n/a | Hafellia bahiana (Malme) Sheard | HABA4 |
| n/a | Hafellia bahiana (Malme) Sheard var. pleiotropa (Malme) Sheard | HABAP |
| n/a | Hafellia callispora (C. Knight) H. Mayrh. & Sheard | HACA9 |
| n/a | Hafellia fosteri Imshaug & Sheard | HAFO2 |
| n/a | Hafellia Kalb | HAFEL |
| n/a | Hafellia parastata (Nyl.) Kalb | HAPA13 |
| n/a | Heterodermia barbifera (Nyl.) K. P. Singh | HEBA4 |
| n/a | Heterodermia boryi (Fee) K. P. Singh & S. R. Singh | HEBO8 |
| n/a | Heterodermia comosa (Eschw.) Follm. & Redon | HECO28 |
| n/a | Heterodermia crocea R. C. Harris | HECR12 |
| n/a | Heterodermia japonica (Sato) Swinscow & Krog | HEJA3 |
| n/a | Heterodermia propagulifera (Vainio) J. P. Dey | HEPR10 |
| n/a | Mobergia angelica (Stizenb.) H. Mayrh. & Sheard | MOAN3 |
| n/a | Mobergia calculiformis (W. A. Weber) H. Mayrh. & Sheard | MOCA5 |
| n/a | Mobergia H. Mayrh. & Sheard | MOBER |
| n/a | Phaeophyscia decolor (Kashiw.) Essl. | PHDE18 |
| n/a | Physcia atrostriata Moberg | PHAT2 |
| n/a | Physcia neogaea R. C. Harris | PHNE14 |
| n/a | Physcia poncinsii Hue | PHPO12 |
| n/a | Physcia pumilior R. C. Harris | PHPU25 |
| n/a | Physcia solistella Essl. & Egan | PHSO3 |
| n/a | Physcia undulata Moberg | PHUN2 |
| n/a | Physconia americana Essl. | PHAM16 |
| n/a | Physconia elegantula Essl. | PHEL6 |
| n/a | Physconia isidiigera (Zahlbr.) Essl. | PHIS2 |
| n/a | Physconia leucoleiptes (Tuck.) Essl. | PHLE20 |
| n/a | Physconia subpallida Essl. | PHSU20 |
| n/a | Physconia thomsonii Essl. | PHTH5 |
| n/a | Pyxine caesiopruinosa (Tuck.) Imahsug | PYCA8 |
| n/a | Pyxine coralligera Malme | PYCO14 |
| n/a | Rinodina castaneomelodes H. Mayrh. & Poelt | RICA11 |
| n/a | Rinodina degeliana Coppins | RIDE3 |
| n/a | Rinodina disjuncta Sheard & Tonsberg | RIDI5 |
| n/a | Rinodina glauca Ropin | RIGL5 |
| n/a | Rinodina granulans Vainio | RIGR7 |
| n/a | Rinodina griseosoralifera Coppins | RIGR8 |
| n/a | Rinodina interpolata (Stirton) Sheard | RIIN7 |
| n/a | Rinodina sheardii Tonsberg | RISH |
| n/a | Rinodina stictica Sheard & Tonsberg | RIST3 |
| n/a | Rinodina thomsonii Sheard | RITH4 |
| n/a | Rinodina willeyii Sheard & Giralt | RIWI |
| n/a | Tornabea Osthagen | TORNA |
| n/a | Tornabea scutellifera (With.) J. R. Laundon | TOSC6 |
| Adirondack rinodina lichen | Rinodina adirondackii H. Magn. | RIAD |
| Amandinea coniops | Buellia coniops (Wahlenb.) Th. Fr. | BUCO3 |
| Amandinea dakotensis | Rinodina dakotensis H. Magn. | RIDA |
| Amandinea dakotensis | Rinodina finkii H. Magn. | RIFI |
| Amandinea dakotensis | Rinodina inaequalis H. Magn. | RIIN5 |
| Amandinea dakotensis | Rinodina pennsylvanica H. Magn. | RIPE4 |
| Amandinea dakotensis | Rinodina pyriniformis H. Magn. | RIPY2 |
| Amandinea dakotensis | Rinodina subplumbea H. Magn. | RISU5 |
| Amandinea leucomela | Buellia leucomela Imshaug | BULE4 |
| Amandinea milliaria | Rinodina milliaria Tuck. | RIMI2 |
| Amandinea polyspora | Buellia polyspora (Willey) Vainio | BUPO2 |
| Amandinea polyspora | Buellia punctata (Hoffm.) A. Massal. var. polyspora (Willey in Tuck.) Fink | BUPUP |
| Amandinea punctata | Buellia myriocarpa (DC.) De Not. | BUMY |
| Amandinea punctata | Buellia pullata Tuck. | BUPU6 |
| Amandinea punctata | Buellia punctata (Hoffm.) A. Massal. | BUPU3 |
| American rinodina lichen | Rinodina americana de Lesd. | RIAM5 |
| American rosette lichen | Physcia americana G. Merr. | PHAM12 |
| Anaptychia bryorum | Anaptychia stippaea (Ach.) Nadv. | ANST13 |
| Anaptychia palmulata | Anaptychia aquila (Ach.) A. Massal. | ANAQ |
| Anaptychia palmulata | Anaptychia palmatula auct. | ANPA11 |
| Anaptychia setifera | Anaptychia kaspica Gyelnik | ANKA2 |
| Appalachian shield lichen | Heterodermia appalachensis (Kruok.) Culb. | HEAP3 |
| arctic rinodina lichen | Rinodina arctica H. Magn. | RIAR3 |
| Arnold's disc lichen | Buellia arnoldii Servit & Nadv. | BUAR4 |
| Bischoff's rinodina lichen | Rinodina bischoffii (Hepp) A. Massal. | RIBI2 |
| black disc lichen | Buellia nigra (Fink) Sheard | BUNI2 |
| Bolander's rinodina lichen | Rinodina bolanderi H. Magn. | RIBO |
| Brouard's rinodina lichen | Rinodina brouardii de Lesd. | RIBR3 |
| Buellia aethalia | Buellia aethalioides (Nyl.) H. Olivier | BUAE2 |
| Buellia aethalia | Buellia malmei Lynge | BUMA4 |
| Buellia aethalia | Buellia verruculosa (Sm.) Mudd | BUVE4 |
| Buellia curatellae | Buellia conspirans (Nyl.) Vainio | BUCO7 |
| Buellia disciformis | Buellia parasema (Ach.) De Not. | BUPA4 |
| Buellia dispersa | Buellia tergestina J. Steiner & Zahlbr. | BUTE3 |
| Buellia erubescens | Buellia zahlbruckneri J. Steiner | BUZA |
| Buellia fimbriata | Buellia pruinella Imshaug | BUPR |
| Buellia griseovirens | Buellia hassei Imshaug | BUHA3 |
| Buellia mamillana | Buellia glauziouana (Krempelh.) Mull. Arg. | BUGL3 |
| Buellia mamillana | Buellia thomae (Tuck.) Imshaug | BUTH2 |
| Buellia microbola | Rinodina microbola Tuck. ex Fink | RIMI5 |
| Buellia nigra | Rinodina nigra Fink | RINI3 |
| Buellia ocellata | Buellia verruculosa auct. | BUVE5 |
| Buellia oidalea | Rhizocarpon oidaleum (Nyl.) Fink | RHOI |
| Buellia papillata | Buelliopsis papillata (Sommerf.) Fink | BUPA6 |
| Buellia retrovertens | Buellia blumeri Zahlbr. | BUBL |
| Buellia retrovertens | Buellia pueblae de Lesd. | BUPU4 |
| Buellia retrovertens | Buellia tucsonensis Zahlbr. | BUTU2 |
| Buellia turgescens | Buellia turgescentoides Fink | BUTU3 |
| Buellia uberior | Buellia contermina Arnold | BUCO8 |
| Buellia vernicoma | Buelliopsis vernicoma (Tuck.) A. Schneider | BUVE6 |
| buelliella lichen | Buelliella Fink | BUELL2 |
| buelliella lichen | Buelliella minimula (Tuck.) Fink | BUMI4 |
| California mountain lichen | Dimelaena californica (H. Magn.) Sheard | DICA20 |
| Casarett's shield lichen | Heterodermia casarettiana (A. Massal.) Trevisan | HECA29 |
| Cascade rosette lichen | Physcia cascadensis H. Magn. | PHCA27 |
| Catawba dermiscellum lichen | Dermiscellum catawbense (Willey) Hafellner & Poelt | DECA16 |
| Cernohorsky's wreath lichen | Phaeophyscia cernohorskyi (Nadv.) Essl. | PHCE2 |
| ciliate wreath lichen | Phaeophyscia ciliata (Hoffm.) Moberg | PHCI60 |
| Clemente's rosette lichen | Physcia clementei (Sm.) Lynge | PHCL2 |
| Colorado rinodina lichen | Rinodina coloradiana H. Magn. | RICO9 |
| Conrad's rinodina lichen | Rinodina conradii Korber | RICO11 |
| Curtis's disc lichen | Buellia curtisii (Tuck.) Imshaug | BUCU4 |
| Darrov's rinodina lichen | Rinodina darrowii E. D. Rudolph | RIDA2 |
| Dermiscellum catawbense | Dermatiscum catawbense (Willey) Nyl. | DECA17 |
| dermiscellum lichen | Dermiscellum Hafellner, H. Mayrh. & Poelt | DERMI |
| destitute rinodina lichen | Rinodina destituta (Nyl.) Zahlbr. | RIDE2 |
| Dimelaena californica | Rinodina californica H. Magn. | RICA9 |
| Dimelaena oreina | Dimelaena novomexicana (de Lesd.) Hale & Culb. | DINO2 |
| Dimelaena oreina | Dimelaena suboreina (de Lesd.) Hale & Culb. | DISU2 |
| Dimelaena oreina | Rinodina hueana Vainio | RIHU5 |
| Dimelaena oreina | Rinodina novomexicana de Lesd. | RINO2 |
| Dimelaena oreina | Rinodina oreina (Ach.) A. Massal. | RIOR4 |
| Dimelaena oreina | Rinodina suboreina de Lesd. | RISU7 |
| Dimelaena radiata | Buellia radiata Tuck. | BURA3 |
| Dimelaena radiata | Rinodina radiata Tuck. | RIRA2 |
| Dimelaena thysanota | Rinodina thysanota Tuck. | RITH3 |
| Diploicia canescens | Buellia canescens (Dickson) De Not. | BUCA12 |
| diploicia lichen | Diploicia A. Massal. | DIPLO4 |
| diploicia lichen | Diploicia canescens (Dickson) A. Massal. | DICA21 |
| Diplotomma alboatrum | Buellia alboatra (Hoffm.) Th. Fr. | BUAL2 |
| Diplotomma alboatrum | Rhizocarpon alboatrum (Hoffm.) Anzi | RHAL11 |
| Diplotomma ambiguum | Buellia ambigua (Ach.) Malme | BUAM4 |
| Diplotomma chlorophaeum | Buellia chlorophaea (Hepp ex Leighton) Lettau | BUCH2 |
| Diplotomma chlorophaeum | Rhizocarpon chlorophaeum Hepp ex Leighton | RHCH8 |
| Diplotomma epipolium | Buellia epipolia (Ach.) Mong. | BUEP2 |
| diplotomma lichen | Diplotomma alboatrum (Hoffm.) Flotow | DIAL7 |
| diplotomma lichen | Diplotomma ambiguum (Ach.) Flagey | DIAM4 |
| diplotomma lichen | Diplotomma chlorophaeum (Hepp ex Leighton) Szat. | DICH9 |
| diplotomma lichen | Diplotomma epipolium (Ach.) Arnold | DIEP |
| diplotomma lichen | Diplotomma Flotow | DIPLO7 |
| diplotomma lichen | Diplotomma nivalis (Begl. & Carestia) Hafellner | DINI3 |
| diplotomma lichen | Diplotomma penichrum (Tuck.) Szat. | DIPE6 |
| diplotomma lichen | Diplotomma venustum (Korber) Korber | DIVE5 |
| Diplotomma nivalis | Buellia nivalis (Bagl. & Car.) Hertel ex Hafellner | BUNI3 |
| Diplotomma penichrum | Buellia penichra (Tuck.) Hasse | BUPE |
| Diplotomma penichrum | Rhizocarpon penichrum (Tuck.) G. Merr. | RHPE7 |
| Diplotomma venustum | Buellia venusta (Korber) Lettau | BUVE3 |
| Dirinaria aegialita | Dirinaria aspera (H. Magn.) D. D. Awasthi | DIAS4 |
| Dirinaria aegialita | Physcia aspera H. Magn. | PHAS |
| Dirinaria frostii | Physcia frostii (Tuck.) Zahlbr. | PHFR8 |
| Dirinaria frostii | Pyxine frostii Tuck. | PYFR |
| dirinaria lichen | Dirinaria (Tuck.) Clem. | DIRIN2 |
| dirinaria lichen | Dirinaria aegialita (Afz.) B. Moore | DIAE2 |
| dirinaria lichen | Dirinaria applanata (Fee) D. D. Awasthi | DIAP3 |
| dirinaria lichen | Dirinaria confluens (Fr.) D. D. Awasthi | DICO13 |
| dirinaria lichen | Dirinaria confusa D. D. Awasthi | DICO14 |
| dirinaria lichen | Dirinaria confusa D. D. Awasthi var. saxicola (Rasanen) D. D. Awasthi | DICOS |
| dirinaria lichen | Dirinaria picta (Sw.) Clem. & Schear | DIPI6 |
| dirinaria lichen | Dirinaria purpurascens (Vainio) B. Moore | DIPU6 |
| Dirinaria picta | Physcia picta (Sw.) Nyl. | PHPI4 |
| Dirinaria picta | Pyxine picta (Sw.) Tuck. | PYPI4 |
| disc lichen | Buellia aethalia (Ach.) Th. Fr. | BUAE |
| disc lichen | Buellia amphidexia Imshaug ex R. C. Harris | BUAM3 |
| disc lichen | Buellia badia (Fr.) A. Massal. | BUBA3 |
| disc lichen | Buellia bolacina Tuck. | BUBO |
| disc lichen | Buellia calcariaecola de Lesd. | BUCA7 |
| disc lichen | Buellia caloosensis Tuck. | BUCA8 |
| disc lichen | Buellia capitis-regnum W. A. Weber | BUCA9 |
| disc lichen | Buellia catasema (Tuck.) Tuck. | BUCA10 |
| disc lichen | Buellia coccinea (Fee) Aptroot | BUCO2 |
| disc lichen | Buellia curatellae Malme | BUCU3 |
| disc lichen | Buellia De Not. | BUELL |
| disc lichen | Buellia dialyta (Nyl.) Tuck. | BUDI2 |
| disc lichen | Buellia disciformis (Fr.) Mudd | BUDI60 |
| disc lichen | Buellia elizae (Tuck.) Tuck. | BUEL3 |
| disc lichen | Buellia epigaea (Pers.) Tuck. | BUEP |
| disc lichen | Buellia erubescens Arnold | BUER2 |
| disc lichen | Buellia fimbriata (Tuck.) Imshaug | BUFI |
| disc lichen | Buellia griseovirens (Turner & Borrer ex Sm.) Almb. | BUGR2 |
| disc lichen | Buellia halonia (Ach.) Tuck. | BUHA2 |
| disc lichen | Buellia insignis (Nageli ex Hepp) Th. Fr. | BUIN |
| disc lichen | Buellia jugorum (Arnold) Arnold | BUJU3 |
| disc lichen | Buellia lacteoidea de Lesd. | BULA5 |
| disc lichen | Buellia lauricassiae (Fee) Mull. Arg. | BULA6 |
| disc lichen | Buellia lepidastra (Tuck.) Tuck. | BULE2 |
| disc lichen | Buellia leptocline (Flotow) A. Massal. | BULE3 |
| disc lichen | Buellia mamillana (Tuck.) W. A. Weber | BUMA2 |
| disc lichen | Buellia melanochroa (Krempelh.) Mull. Arg. | BUME2 |
| disc lichen | Buellia microbola (Tuck. ex Fink) Sheard | BUMI3 |
| disc lichen | Buellia modesta (Krempelh.) Mull. Arg. | BUMO3 |
| disc lichen | Buellia nantiana de Lesd. | BUNA |
| disc lichen | Buellia notabilis Lynge | BUNO |
| disc lichen | Buellia ocellata (Flotow) Korber | BUOC |
| disc lichen | Buellia oidalea (Nyl.) Tuck. | BUOI |
| disc lichen | Buellia pachnidisca R. C. Harris | BUPA3 |
| disc lichen | Buellia papillata (Sommerf.) Tuck. | BUPA60 |
| disc lichen | Buellia placodiomorpha Vainio | BUPL |
| disc lichen | Buellia pulverulenta (Anzi) Jatta | BUPU2 |
| disc lichen | Buellia retrovertens Tuck. | BURE2 |
| disc lichen | Buellia rubifaciens R. C. Harris | BURU4 |
| disc lichen | Buellia saurina W. A. Weber | BUSA3 |
| disc lichen | Buellia saxicola de Lesd. | BUSA4 |
| disc lichen | Buellia semitensis Tuck. | BUSE4 |
| disc lichen | Buellia silicicola de Lesd. | BUSI2 |
| disc lichen | Buellia smaragdula de Lesd. | BUSM2 |
| disc lichen | Buellia spuria (Schaerer) Anzi | BUSP2 |
| disc lichen | Buellia stellulata (Taylor) Mudd | BUST2 |
| disc lichen | Buellia stigmaea Tuck. | BUST3 |
| disc lichen | Buellia stigmatea Korber | BUST4 |
| disc lichen | Buellia triphragmioides Anzi | BUTR2 |
| disc lichen | Buellia turgescens Tuck. | BUTU |
| disc lichen | Buellia uberior Anzi | BUUB |
| disc lichen | Buellia vernicoma (Tuck.) Tuck. | BUVE2 |
| disc lichen | Buellia vilis Th. Fr. | BUVI |
| elegant disc lichen | Buellia elegans Poelt | BUEL2 |
| Eschweiler's pyxine lichen | Pyxine eschweileri (Tuck.) Vainio | PYES |
| fringed lichen | Anaptychia bryorum Poelt | ANBR15 |
| fringed lichen | Anaptychia Korber | ANAPT2 |
| fringed lichen | Anaptychia palmulata (Michaux) Vainio | ANPA10 |
| fringed lichen | Anaptychia setifera Rasanen | ANSE60 |
| fringed lichen | Anaptychia ulotrichoides (Vainio) Vainio | ANUL |
| Frost's dirinaria lichen | Dirinaria frostii (Tuck.) Hale & Culb. | DIFR2 |
| frosted lichen | Physconia detersa (Nyl.) Poelt | PHDE61 |
| frosted lichen | Physconia enteroxantha (Nyl.) Poelt | PHEN62 |
| frosted lichen | Physconia kurokawae Kashiw. | PHKU |
| frosted lichen | Physconia muscigena (Ach.) Poelt | PHMU60 |
| frosted lichen | Physconia perisidiosa (Erichsen) Moberg | PHPE60 |
| frosted lichen | Physconia Poelt | PHYSC7 |
| Gennar's rinodina lichen | Rinodina gennarii Bagl. | RIGE |
| Hafellia bahiana | Buellia bahiana Malme | BUBA4 |
| Hafellia callispora | Buellia callispora (C. Knight) J. Steiner | BUCA11 |
| Hafellia parastata | Buellia blasteniospora Zahlbr. | BUBL2 |
| Hafellia parastata | Buellia rinodinospora Riddle | BURI2 |
| hairy wreath lichen | Phaeophyscia hirsuta (Mereschk.) Essl. | PHHI12 |
| Hale's rinodina lichen | Rinodina halei H. Magn. | RIHA |
| Hale's rosette lichen | Physcia halei J. W. Thomson | PHHA7 |
| Hall's rinodina lichen | Rinodina hallii Tuck. | RIHA2 |
| Herre's rinodina lichen | Rinodina herrei H. Magn. | RIHE3 |
| Heterodermia albicans | Anaptychia domingensis (Ach.) A. Massal. | ANDO7 |
| Heterodermia albicans | Anaptychia ravenelii (Tuck.) Zahlbr. | ANRA5 |
| Heterodermia albicans | Heterodermia domingensis (Ach.) Trevisan | HEDO2 |
| Heterodermia appalachensis | Anaptychia appalachensis Kurok. | ANAP4 |
| Heterodermia barbifera | Heterodermia podocarpa (Bel.) D. D. Awasthi | HEPO7 |
| Heterodermia boryi | Anaptychia neoleucomelaena Kurok. | ANNE9 |
| Heterodermia boryi | Heterodermia neoluecomelaena (Kurok.) Follmann & Redon | HENE6 |
| Heterodermia casarettiana | Anaptychia casarettiana A. Massal. | ANCA36 |
| Heterodermia chondroidea | Anaptychia chondroidea (W. A. Weber & D. D. Awasthi) Kurok. | ANCH10 |
| Heterodermia crocea | Anaptychia corallophora (Taylor) Lynge | ANCO32 |
| Heterodermia crocea | Heterodermia corallophora (Taylor) Skorepa | HECO23 |
| Heterodermia dendritica | Anaptychia dendritica (Pers.) Vainio | ANDE11 |
| Heterodermia diademata | Anaptychia diademata (Taylor) Kurok. | ANDI10 |
| Heterodermia echinata | Anaptychia echinata (Taylor) Kurok. | ANEC2 |
| Heterodermia erinacea | Anaptychia erinacea (Ach.) Trevisan | ANER4 |
| Heterodermia galactophylla | Anaptychia comosa (Eschw.) A. Massal. | ANCO31 |
| Heterodermia galactophylla | Anaptychia galactophylla (Tuck.) Trevisan | ANGA2 |
| Heterodermia granulifera | Anaptychia granulifera (Ach.) A. Massal. | ANGR7 |
| Heterodermia hypoleuca | Anaptychia hypoleuca (Muhl.) A. Massal. | ANHY4 |
| Heterodermia leucomelos | Anaptychia leucomelaena auct. | ANLE11 |
| Heterodermia leucomelos | Heterodermia leucomelaena (L.) Poelt | HELE11 |
| Heterodermia obscurata | Anaptychia heterochroa Vainio | ANHE9 |
| Heterodermia obscurata | Anaptychia hypoleuca (Muhl.) A. Massal. var. colorata Zahlbr. | ANHYC |
| Heterodermia obscurata | Anaptychia obscurata (Nyl.) Vainio | ANOB7 |
| Heterodermia obscurata | Anaptychia sorediifera (Mull. Arg.) Du Rietz & Lynge | ANSO6 |
| Heterodermia speciosa | Anaptychia pseudospeciosa Kurok. | ANPS |
| Heterodermia speciosa | Anaptychia pseudospeciosa Kurok. var. tremulans (Mull. Arg.) Kurok. | ANPST |
| Heterodermia speciosa | Anaptychia speciosa (Wulfen) A. Massal. | ANSP10 |
| Heterodermia speciosa | Heterodermia tremulans (Mull. Arg.) Culb. | HETR11 |
| Heterodermia squamulosa | Anaptychia squamulosa Degel. | ANSQ2 |
| Heterodermia tropica | Anaptychia tropica Kurok. | ANTR6 |
| hispid wreath lichen | Phaeophyscia hispidula (Ach.) Essl. | PHHI14 |
| Hyperphyscia adglutinata | Physcia adglutinata (Florke) Nyl. | PHAD5 |
| Hyperphyscia adglutinata | Physcia elaeina (Sm.) A. L. Sm. | PHEL4 |
| Hyperphyscia adglutinata | Physciopsis adglutinata (Florke) Choisy | PHAD7 |
| Hyperphyscia adglutinata | Physciopsis elaeina (Sm.) Poelt | PHEL5 |
| hyperphyscia lichen | Hyperphyscia adglutinata (Florke) H. Mayrh. & Poelt | HYAD2 |
| hyperphyscia lichen | Hyperphyscia minor (Fee) D. D. Awasthi | HYMI7 |
| hyperphyscia lichen | Hyperphyscia Mull. Arg. | HYPER3 |
| hyperphyscia lichen | Hyperphyscia syncolla (Tuck. ex Nyl.) Kalb | HYSY |
| Hyperphyscia minor | Physcia minor (Fee) Vainio | PHMI16 |
| Hyperphyscia minor | Physciopsis minor (Fee) B. Moore | PHMI17 |
| Hyperphyscia syncolla | Physcia syncolla Tuck. ex Nyl. | PHSY |
| Hyperphyscia syncolla | Physciopsis syncolla (Tuck. ex Nyl.) Poelt | PHSY2 |
| imbricate wreath lichen | Phaeophyscia imbricata (Vainio) Essl. | PHIM3 |
| Imshaug's disc lichen | Buellia imshaugii Hafellner | BUIM2 |
| Iowa rinodina lichen | Rinodina iowensis Zahlbr. | RIIO |
| Kentucky rinodina lichen | Rinodina kentuckyensis Fink | RIKE |
| Kihlman's wreath lichen | Phaeophyscia kairamoi (Vainio) Moberg | PHKA |
| lecanora disc lichen | Buellia lecanoroides H. Magn. | BULE |
| Magnusson's rosette lichen | Physcia magnussonii Frey | PHMA19 |
| manyspore rinodina lichen | Rinodina polyspora Th. Fr. | RIPO |
| Marysville rinodina lichen | Rinodina marysvillensis H. Magn. | RIMA4 |
| Mexican rosette lichen | Physcia mexicana de Lesd. | PHME6 |
| Mobergia angelica | Dimelaena angelica (Stizenb.) Hale & Culb. | DIAN5 |
| Mobergia angelica | Rinodina angelica Stizenb. | RIAN |
| Mobergia calculiformis | Rinodina calculiformis W. A. Weber | RICA7 |
| Mobergia calculiformis | Rinodina platyloba Willey | RIPL |
| mountain lichen | Dimelaena Norman | DIMEL |
| mountain lichen | Dimelaena oreina (Ach.) Norman | DIOR4 |
| mountain lichen | Dimelaena radiata (Tuck.) Mull. Arg. | DIRA4 |
| mountain lichen | Dimelaena thysanota (Tuck.) Hale & Culb. | DITH2 |
| mountain rosette lichen | Physcia montana de Lesd. | PHMO12 |
| Nepal physciella | Physciella nepalensis (Poelt) Essl. | PHNE11 |
| New Mexican disc lichen | Buellia novomexicana de Lesd. | BUNO2 |
| obscure shield lichen | Heterodermia obscurata (Nyl.) Trevisan | HEOB2 |
| Oregon rinodina lichen | Rinodina oregana H. Magn. | RIOR2 |
| papillate rinodina lichen | Rinodina papillata H. Magn. | RIPA4 |
| parasite rinodina lichen | Rinodina parasitica H. Mayrh. & Poelt | RIPA5 |
| Phaeophyscia adiastola | Physcia adiastola Essl. | PHAD6 |
| Phaeophyscia cernohorskyi | Physcia cernohorskyi Nadv. | PHCE3 |
| Phaeophyscia ciliata | Physcia ciliata (Hoffm.) Du Rietz | PHCI6 |
| Phaeophyscia ciliata | Physcia obscura auct. | PHOB4 |
| Phaeophyscia constipata | Physcia constipata Norrlin & Nyl. | PHCO39 |
| Phaeophyscia endococcina | Physcia columbiana de Lesd. | PHCO38 |
| Phaeophyscia endococcina | Physcia endococcina (Korber) Th. Fr. | PHEN6 |
| Phaeophyscia endococcina | Physcia lithotodes Nyl. | PHLI12 |
| Phaeophyscia endococcinodes | Physcia endococcinoides Poelt | PHEN5 |
| Phaeophyscia hirsuta | Physcia hirsuta Mereschk. | PHHI15 |
| Phaeophyscia hispidula | Physcia hispidula (Ach.) Frey | PHHI17 |
| Phaeophyscia hispidula | Physcia setosa (Ach.) Nyl. | PHSE15 |
| Phaeophyscia imbricata | Physcia imbricata Vainio | PHIM4 |
| Phaeophyscia imbricata | Physcia lacinulata Mull. Arg. | PHLA25 |
| Phaeophyscia kairamoi | Physcia kairamoi Vainio | PHKA2 |
| Phaeophyscia leana | Physcia leana (Tuck.) Tuck. | PHLE18 |
| Phaeophyscia nigricans | Physcia nigricans (Florke) Stizenb. | PHNI7 |
| Phaeophyscia orbicularis | Physcia orbicularis (Necker) Poetsch | PHOR6 |
| Phaeophyscia pusilloides | Physcia pusilloides Zahlbr. | PHPU20 |
| Phaeophyscia rubropulchra | Physcia endochrysea (Hampe) Nyl. | PHEN3 |
| Phaeophyscia rubropulchra | Physcia rubropulchra (Degel.) Moberg | PHRU5 |
| Phaeophyscia sciastra | Physcia lithotea (Ach.) Nyl. | PHLI11 |
| Phaeophyscia sciastra | Physcia sciastra (Ach.) Du Rietz | PHSC10 |
| phaeorrhiza lichen | Phaeorrhiza H. Mayrh. & Poelt | PHAEO8 |
| phaeorrhiza lichen | Phaeorrhiza nimbosa (Fr.) H. Mayrh. & Poelt | PHNI6 |
| phaeorrhiza lichen | Phaeorrhiza sareptana (Tomin) H. Mayrh. & Poelt | PHSA10 |
| Phaeorrhiza nimbosa | Rinodina nimbosa (Fr.) Th. Fr. | RINI4 |
| Phaeorrhiza nimbosa | Rinodina phaeocarpa (Sommerf.) Vainio | RIPH |
| Physcia aipolia | Physcia cainii Rasanen | PHCA30 |
| Physcia americana | Physcia tribacoides auct. | PHTR6 |
| Physcia atrostriata | Physcia albicans (Pers.) J. W. Thomson | PHAL18 |
| Physcia caesia | Physcia wainioi Rasanen | PHWA5 |
| Physcia clementei | Physcia astroidea (Clem.) Nyl. | PHAS2 |
| Physcia dubia | Physcia intermedia Vainio | PHIN26 |
| Physcia dubia | Physcia teretiuscula (Ach.) Lynge | PHTE14 |
| Physcia phaea | Physcia melops Dufour | PHME11 |
| Physcia semipinnata | Physcia leptalea (Ach.) DC. | PHLE19 |
| Physcia sorediosa | Physcia fragilescens Zahlbr. | PHFR7 |
| Physcia tenella | Physcia hispida auct. | PHHI16 |
| Physcia tenella var. marina | Physcia subobscura Nyl. | PHSU13 |
| physciella | Physciella chloantha (Ach.) Essl. | PHCH4 |
| physciella | Physciella Essl. | PHYSC5 |
| physciella | Physciella melanchra (Hue) Essl. | PHME7 |
| Physciella chloantha | Phaeophyscia chloantha (Ach.) Moberg | PHCH5 |
| Physciella chloantha | Physcia chloantha (Ach.) Vainio | PHCH6 |
| Physciella chloantha | Physcia luganensis Mereschk. | PHLU5 |
| Physciella melanchra | Phaeophyscia melanchra (Hue) Hale | PHME8 |
| Physciella melanchra | Physcia melanchra Hue | PHME10 |
| Physciella nepalensis | Phaeophyscia nepalensis (Poelt) D. D. Awasthi | PHNE12 |
| Physciella nepalensis | Physcia nepalensis Poelt | PHNE13 |
| Physconia detersa | Physcia detersa (Nyl.) Nyl. | PHDE19 |
| Physconia isidiigera | Physcia isidiigera (Zahlbr.) Fink | PHIS |
| Physconia muscigena | Physcia muscigena (Ach.) Nyl. | PHMU6 |
| Physconia perisidiosa | Physconia farrea sensu Poelt | PHFA3 |
| Pyxine berteriana | Pyxine meissneri Tuck. | PYME4 |
| pyxine lichen | Pyxine albovirens (G. Meyer) Aptroot | PYAL3 |
| pyxine lichen | Pyxine berteriana (Fee) Imshaug | PYBE2 |
| pyxine lichen | Pyxine cocoes (Sw.) Nyl. | PYCO13 |
| pyxine lichen | Pyxine Fr. | PYXIN |
| pyxine lichen | Pyxine petricola Nyl. | PYPE |
| pyxine lichen | Pyxine retirugella Nyl. | PYRE |
| pyxine lichen | Pyxine sorediata (Ach.) Mont. | PYSO3 |
| pyxine lichen | Pyxine subcinerea Stirton | PYSU6 |
| Pyxine petricola | Pyxine pringlei Imshaug | PYPR3 |
| Pyxine subcinerea | Pyxine chrysanthoides Vainio | PYCH2 |
| Rinodina bischoffii | Rinodina penaridiana Mull. Arg. | RIPE3 |
| Rinodina calcigena | Rinodina occidentalis Lynge | RIOC3 |
| Rinodina chrysomelaena | Dimelaena chrysomelaena (de Lesd.) Hale & Culb. | DICH10 |
| Rinodina conradii | Rinodina intermedia Bagl. | RIIN6 |
| Rinodina conradii | Rinodina sabulosa Tuck. | RISA6 |
| Rinodina excrescens | Rinodina thujae (H. Magn.) Sheard | RITH2 |
| Rinodina gennarii | Rinodina salina Degel. | RISA7 |
| Rinodina granulans | Rinodina lignaria H. Magn. | RILI2 |
| Rinodina lecanorina | Rinodina ocellata (Hoffm.) Arnold | RIOC4 |
| rinodina lichen | Rinodina (Ach.) Gray | RINOD |
| rinodina lichen | Rinodina annulata H. Magn. | RIAN2 |
| rinodina lichen | Rinodina applanata H. Magn. | RIAP |
| rinodina lichen | Rinodina archaea (Ach.) Arnold | RIAR2 |
| rinodina lichen | Rinodina ascociscana Tuck. | RIAS2 |
| rinodina lichen | Rinodina athallina H. Magn. | RIAT2 |
| rinodina lichen | Rinodina bolodes Tuck. ex Fink | RIBO2 |
| rinodina lichen | Rinodina cacuminum (Th. Fr.) Malme | RICA5 |
| rinodina lichen | Rinodina calcigena (Th. Fr.) Lynge | RICA6 |
| rinodina lichen | Rinodina castaneomela (Nyl.) Arnold | RICA8 |
| rinodina lichen | Rinodina chrysomelaena Tuck. | RICH |
| rinodina lichen | Rinodina cinereovirens (Vainio) Vainio | RICI |
| rinodina lichen | Rinodina colobina (Ach.) Th. Fr. | RICO7 |
| rinodina lichen | Rinodina colobinoides (Nyl.) Zahlbr. | RICO8 |
| rinodina lichen | Rinodina confragosa (Ach.) Korber | RICO10 |
| rinodina lichen | Rinodina constrictula H. Magn. | RICO12 |
| rinodina lichen | Rinodina corticola Arnold | RICO13 |
| rinodina lichen | Rinodina dirinoides Zahlbr. | RIDI3 |
| rinodina lichen | Rinodina efflorescens Malme | RIEF |
| rinodina lichen | Rinodina endophragmia Lamb | RIEN |
| rinodina lichen | Rinodina excrescens Vainio | RIEX |
| rinodina lichen | Rinodina exigua (Ach.) Gray | RIEX2 |
| rinodina lichen | Rinodina granuligera H. Magn. | RIGR6 |
| rinodina lichen | Rinodina hyperborea H. Magn. | RIHY2 |
| rinodina lichen | Rinodina laevigata (Ach.) Malme | RILA4 |
| rinodina lichen | Rinodina lecanoides de Lesd. | RILE5 |
| rinodina lichen | Rinodina lecanorina (A. Massal.) A. Massal. | RILE6 |
| rinodina lichen | Rinodina lecideoides (Nyl.) Kernst. | RILE7 |
| rinodina lichen | Rinodina lepida (Nyl.) Mull. Arg. | RILE8 |
| rinodina lichen | Rinodina luridata (Korber) H. Mayrh., Schneid. & Sheard | RILU |
| rinodina lichen | Rinodina lycopodiicola de Lesd. | RILY |
| rinodina lichen | Rinodina metaboliza Vainio | RIME3 |
| rinodina lichen | Rinodina milvina (Wahlenb.) Th. Fr. | RIMI3 |
| rinodina lichen | Rinodina minutissima de Lesd. | RIMI4 |
| rinodina lichen | Rinodina mniaraea (Ach.) Korber | RIMN |
| rinodina lichen | Rinodina mniaroeiza (Nyl.) Arnold | RIMN2 |
| rinodina lichen | Rinodina mucronatula H. Magn. | RIMU |
| rinodina lichen | Rinodina ochrocea Willey ex Fink | RIOC2 |
| rinodina lichen | Rinodina olivaceobrunnea C. W. Dodge & Baker | RIOL2 |
| rinodina lichen | Rinodina oxydata (A. Massal.) A. Massal. | RIOX2 |
| rinodina lichen | Rinodina pachysperma H. Magn. | RIPA3 |
| rinodina lichen | Rinodina populicola H. Magn. | RIPO2 |
| rinodina lichen | Rinodina pyrina (Ach.) Arnold | RIPY |
| rinodina lichen | Rinodina roscida (Sommerf.) Arnold | RIRO3 |
| rinodina lichen | Rinodina septentrionalis Malme | RISE3 |
| rinodina lichen | Rinodina silicicola de Lesd. | RISI2 |
| rinodina lichen | Rinodina subminuta H. Magn. | RISU4 |
| rinodina lichen | Rinodina subsophodes (Nyl.) Zahlbr. | RISU6 |
| rinodina lichen | Rinodina tephraspis (Tuck.) Herre | RITE |
| rinodina lichen | Rinodina turfacea (Wahlenb.) Korber | RITU2 |
| Rinodina luridata | Rinodina euryspora Zahlbr. in Hasse | RIEU |
| Rinodina mniaroeiza | Lecanora mniaroeiza Nyl. | LEMN |
| Rinodina olivaceobrunnea | Rinodina archaeoides H. Magn. | RIAR4 |
| Rinodina oxydata | Rinodina biatorina Korber | RIBI3 |
| Rinodina turfacea | Rinodina orbata (Ach.) Vainio | RIOR3 |
| Rinodina zwackhiana | Rinodina violascens H. Magn. | RIVI7 |
| rock disc lichen | Buellia geophila (Florke ex Sommerf.) Lynge | BUGE |
| rosette lichen | Physcia (Schreber) Michaux | PHYSC4 |
| rosette lichen | Physcia adscendens (Fr.) H. Olivier | PHAD60 |
| rosette lichen | Physcia aipolia (Ehrh. ex Humb.) Furnr. | PHAI2 |
| rosette lichen | Physcia aipolia (Ehrh. ex Humb.) Furnr. var. aipolia | PHAIA |
| rosette lichen | Physcia aipolia (Ehrh. ex Humb.) Furnr. var. alnophila (Vainio) Lynge | PHAIA2 |
| rosette lichen | Physcia albinea (Ach.) Nyl. | PHAL16 |
| rosette lichen | Physcia biziana (A. Massal.) Zahlbr. | PHBI6 |
| rosette lichen | Physcia caesia (Hoffm.) Furnr. | PHCA60 |
| rosette lichen | Physcia callosa Nyl. | PHCA26 |
| rosette lichen | Physcia convexa Nyl. | PHCO36 |
| rosette lichen | Physcia crispa Nyl. | PHCR6 |
| rosette lichen | Physcia dimidiata (Arnold) Nyl. | PHDI12 |
| rosette lichen | Physcia dubia (Hoffm.) Lettau | PHDU60 |
| rosette lichen | Physcia duplicorticata W. A. Weber & J. W. Thomson | PHDU2 |
| rosette lichen | Physcia millegrana Degel. | PHMI15 |
| rosette lichen | Physcia phaea (Tuck.) J. W. Thomson | PHPH60 |
| rosette lichen | Physcia pseudospeciosa J. W. Thomson | PHPS2 |
| rosette lichen | Physcia semipinnata (J. F. Gmelin) Moberg | PHSE13 |
| rosette lichen | Physcia sorediosa (Vainio) Lynge | PHSO2 |
| rosette lichen | Physcia subtilis Degel. | PHSU14 |
| rosette lichen | Physcia tenella (Scop.) DC. | PHTE60 |
| rosette lichen | Physcia tenella (Scop.) DC. var. marina (E. Nyl.) D. Hawksw. | PHTEM |
| rosette lichen | Physcia tribacia (Ach.) Nyl. | PHTR5 |
| rugulose shield lichen | Heterodermia rugulosa (Kurok.) Wetmore | HERU6 |
| Santa Monica rinodina lichen | Rinodina santae-monicae H. Magn. | RISA5 |
| Schaerer's disc lichen | Buellia schaereri De Not. | BUSC3 |
| seaside disc lichen | Buellia maritima (A. Massal.) Bagl. | BUMA3 |
| shield lichen | Heterodermia albicans (Pers.) Swinscow & Krog | HEAL14 |
| shield lichen | Heterodermia chondroidea W. A. Weber & D. D. Awasthi | HECH3 |
| shield lichen | Heterodermia diademata (Taylor) D. D. Awasthi | HEDI6 |
| shield lichen | Heterodermia echinata (Taylor) Culb. | HEEC2 |
| shield lichen | Heterodermia erinacea (Ach.) W. A. Weber | HEER |
| shield lichen | Heterodermia galactophylla (Tuck.) Culb. | HEGA2 |
| shield lichen | Heterodermia granulifera (Ach.) Culb. | HEGR19 |
| shield lichen | Heterodermia hypoleuca (Muhl.) Trevisan | HEHY5 |
| shield lichen | Heterodermia leucomelos (L.) Poelt | HELE9 |
| shield lichen | Heterodermia pseudospeciosa (Kurok.) Culb. | HEPS3 |
| shield lichen | Heterodermia speciosa (Wulfen) Trevisan | HESP8 |
| shield lichen | Heterodermia squamulosa (Degel.) Culb. | HESQ2 |
| shield lichen | Heterodermia Trevisan | HETER16 |
| Sitka shield lichen | Heterodermia sitchensis Goward & W. Noble | HESI4 |
| smallleaf shield lichen | Heterodermia microphylla (Kurok.) Skorepa | HEMI16 |
| stellaris rosette lichen | Physcia stellaris (L.) Nyl. | PHST60 |
| Stilling's disc lichen | Buellia stillingiana J. Steiner | BUST5 |
| Tornabea scutellifera | Tornabea ephebea (Ach.) Kurok. | TOEP |
| tree shield lichen | Heterodermia dendritica (Pers.) Poelt | HEDE6 |
| tropic shield lichen | Heterodermia tropica (Kurok.) | HETR10 |
| Trypethel's buelliella lichen | Buelliella trypethelii (Tuck.) Fink | BUTR3 |
| Vegas's rinodina lichen | Rinodina vegasii de Lesd. | RIVE2 |
| water disc lichen | Buellia immersa Lynge | BUIM |
| Weber's mountain lichen | Dimelaena weberi Sheard | DIWE2 |
| Wheeler's disc lichen | Buellia wheeleri R. C. Harris | BUWH |
| wreath lichen | Phaeophyscia adiastola (Essl.) Essl. | PHAD4 |
| wreath lichen | Phaeophyscia constipata (Norrlin & Nyl.) Moberg | PHCO60 |
| wreath lichen | Phaeophyscia endococcina (Korber) Moberg | PHEN60 |
| wreath lichen | Phaeophyscia endococcinodes (Poelt) Essl. | PHEN2 |
| wreath lichen | Phaeophyscia erythrocardia (Tuck.) Essl. | PHER6 |
| wreath lichen | Phaeophyscia hirtella Essl. | PHHI13 |
| wreath lichen | Phaeophyscia insignis (Mereschk.) Moberg | PHIN24 |
| wreath lichen | Phaeophyscia leana (Tuck.) Essl. | PHLE17 |
| wreath lichen | Phaeophyscia Moberg | PHAEO7 |
| wreath lichen | Phaeophyscia nigricans (Florke) Moberg | PHNI5 |
| wreath lichen | Phaeophyscia orbicularis (Necker) Moberg | PHOR60 |
| wreath lichen | Phaeophyscia pusilloides (Zahlbr.) Essl. | PHPU18 |
| wreath lichen | Phaeophyscia rubropulchra (Degel.) Essl. | PHRU4 |
| wreath lichen | Phaeophyscia sciastra (Ach.) Moberg | PHSC60 |
| Zwackh-Holzhausen's rinodina lichen | Rinodina zwackhiana (Krempelh.) Korber | RIZW |
Plant Names