| Common Name | Scientific Name | Code |
| n/a | Cladonia albonigra Brodo & Ahti | CLAL11 |
| n/a | Cladonia alinii Trass | CLAL12 |
| n/a | Cladonia andereggii S. Hammer | CLAN5 |
| n/a | Cladonia artuata S. Hammer | CLAR9 |
| n/a | Cladonia buckii R. C. Harris | CLBU2 |
| n/a | Cladonia conista A. Evans | CLCO20 |
| n/a | Cladonia ecmocyna Leighton ssp. occidentalis Ahti | CLECO |
| n/a | Cladonia extracorticata S. Hammer | CLEX4 |
| n/a | Cladonia firma (Nyl.) Nyl. | CLFI4 |
| n/a | Cladonia graciliformis Zahlbr. | CLGR12 |
| n/a | Cladonia gracilis (L.) Willd. ssp. elongata (Jacq.) Vainio | CLGRE |
| n/a | Cladonia macilenta Hoffm. var. bacillaris (Genth) Schaerer | CLMAB |
| n/a | Cladonia nana Vainio | CLNA4 |
| n/a | Cladonia norvegica Tonsberg & Holien | CLNO2 |
| n/a | Cladonia novochlorophaea (Sipman) Ahti & Brodo | CLNO3 |
| n/a | Cladonia poroscypha S. Hammer | CLPO9 |
| n/a | Cladonia pulvinella S. Hammer | CLPU5 |
| n/a | Cladonia schofieldii Ahti & Brodo | CLSC3 |
| n/a | Cladonia singularis S. Hammer | CLSI6 |
| n/a | Pycnothelia Dufour | PYCNO2 |
| acutetip cup lichen | Cladonia acuminata (Ach.) Norrlin | CLAC60 |
| Alaskan cup lichen | Cladonia alaskana A. Evans | CLAL60 |
| Asahina's cup lichen | Cladonia asahinae J. W. Thomson | CLAS5 |
| Atlantic cup lichen | Cladonia atlantica A. Evans | CLAT2 |
| Beaumont's cup lichen | Cladonia beaumontii (Tuck.) Vainio | CLBE3 |
| Bering reindeer lichen | Cladina arbuscula (Wallr.) Hale & Culb. ssp. beringiana (Ahti) N. S. Golubk. | CLARB |
| boreal cup lichen | Cladonia borealis S. Stenroos | CLBO7 |
| Bory's cup lichen | Cladonia boryi Tuck. | CLBO60 |
| Carolina cup lichen | Cladonia caroliniana Tuck. | CLCA11 |
| ciliate reindeer lichen | Cladina ciliata (Stirton) Trass | CLCI60 |
| ciliate reindeer lichen | Cladina ciliata (Stirton) Trass var. ciliata | CLCIC |
| Cladina arbuscula | Cladonia arbuscula (Wallr.) Flotow | CLAR6 |
| Cladina arbuscula | Cladonia sylvatica auct. | CLSY2 |
| Cladina arbuscula ssp. beringiana | Cladina beringiana (Ahti) Trass | CLBE5 |
| Cladina ciliata | Cladina ciliata (Stirton) Trass var. tenuis (Florke) Ahti & M. J. Lai | CLCIT |
| Cladina ciliata | Cladina tenuis (Florke) Hale & Culb. | CLTE10 |
| Cladina ciliata | Cladonia tenuis (Florke) Harm. | CLTE11 |
| Cladina ciliata var. ciliata | Cladina leucophaea (Abbayes) Hale & Culb. | CLLE5 |
| Cladina ciliata var. ciliata | Cladonia leucophaea Abbayes | CLLE8 |
| Cladina evansii | Cladonia evansii Abbayes | CLEV2 |
| Cladina mitis | Cladonia arbuscula (Wallr.) Flotow ssp. mitis (Sandst.) Ruoss | CLARM |
| Cladina mitis | Cladonia mitis Sandst. | CLMI6 |
| Cladina portentosa | Cladina impexa de Lesd. | CLIM4 |
| Cladina portentosa | Cladonia impexa Harm. | CLIM5 |
| Cladina portentosa ssp. pacifica | Cladina pacifica (Ahti) Hale & Culb. | CLPA14 |
| Cladina portentosa ssp. pacifica | Cladonia pacifica Ahti | CLPA15 |
| Cladina pseudoevansii | Cladonia pseudoevansii Asah. | CLPS7 |
| Cladina rangiferina | Cladina rangiferina (L.) Nyl. ssp. grisea (Ahti) Ahti & Lai | CLRAG |
| Cladina rangiferina | Cladonia rangiferina (L.) F. H. Wigg. | CLRA4 |
| Cladina sandstedei | Cladonia sandstedei Abbayes | CLSA8 |
| Cladina stellaris | Cladina alpestris (L.) Nyl. | CLAL7 |
| Cladina stellaris | Cladonia alpestris (L.) Rabenh. | CLAL8 |
| Cladina stellaris | Cladonia stellaris (Opiz) Pouzar & Vezda | CLST8 |
| Cladina stellaris var. aberrans | Cladina aberrans (Abbayes) Hale & Culb. | CLAB2 |
| Cladina stellaris var. aberrans | Cladonia aberrans (Abbayes) Stuckenb. | CLAB3 |
| Cladina stygia | Cladonia stygia (Fr.) Ruoss | CLST9 |
| Cladina submitis | Cladonia submitis A. Evans | CLSU13 |
| Cladina subtenuis | Cladonia subtenuis (Abbayes) Mattick | CLSU16 |
| Cladina terrae-novae | Cladonia terrae-novae Ahti | CLTE12 |
| Cladonia acuminata | Cladonia acuminata (Ach.) Norrlin var. norlinii (Vainio) Lynge | CLACN |
| Cladonia acuminata | Cladonia norrlinii Vainio | CLNO |
| Cladonia bellidiflora | Cladonia hookeri Tuck. | CLHO4 |
| Cladonia cervicornis ssp. verticillata | Cladonia verticillata (Hoffm.) Schaerer | CLVE5 |
| Cladonia coccifera | Cladonia blakei Robbins | CLBL |
| Cladonia coccifera | Cladonia pseudodigitata Gyelnik | CLPS6 |
| Cladonia conista | Cladonia humilis (With.) J. R. Laundon var. bourgeanica A. W. Archer | CLHUB |
| Cladonia crispata | Cladonia japonica Vainio | CLJA4 |
| Cladonia didyma var. vulcanica | Cladonia vulcanica Zoll. & Moritzi | CLVU3 |
| Cladonia fimbriata | Cladonia major (K. Hagen) Sandst. | CLMA20 |
| Cladonia furcata | Cladonia furcata (Hudson) Schrader ssp. subrangiformis auct. | CLFUS2 |
| Cladonia furcata | Cladonia herrei Fink ex J. Hedrick | CLHE3 |
| Cladonia furcata | Cladonia subrangiformis auct. | CLSU14 |
| Cladonia graciliformis | Cladonia hookeri sensu J. W. Thomson | CLHO5 |
| Cladonia gracilis ssp. elongata | Cladonia elongata (Jacq.) Hoffm. | CLEL2 |
| Cladonia gracilis ssp. elongata | Cladonia gracilis (L.) Willd. ssp. nigripes (Nyl.) Ahti | CLGRN |
| Cladonia humilis | Cladonia conistea (Delise) Asah. | CLCO16 |
| Cladonia humilis | Cladonia conoidea Ahti | CLCO17 |
| Cladonia macilenta | Cladonia balfourii Crombie | CLBA5 |
| Cladonia macilenta var. bacillaris | Cladonia bacillaris Nyl. | CLBA2 |
| Cladonia macrophylla | Cladonia alpicola (Flotow) Vainio | CLAL9 |
| Cladonia novochlorophaea | Cladonia merochlorophaea Asah. var. novochlorophaea Sipman | CLMEN2 |
| Cladonia ochrochlora | Cladonia invisa Robbins | CLIN4 |
| Cladonia parasitica | Cladonia delicata auct. | CLDE8 |
| Cladonia peziziformis | Cladonia capitata (Michaux) Sprengel | CLCA13 |
| Cladonia peziziformis | Cladonia leptothallina G. Merr. | CLLE7 |
| Cladonia peziziformis | Cladonia mitrula Tuck. | CLMI7 |
| Cladonia phyllophora | Cladonia denergans (Florke) Sprengel | CLDE6 |
| Cladonia polycarpoides | Cladonia subcariosa auct. | CLSU12 |
| Cladonia ramulosa | Cladonia anomaea (Ach.) Ahti & P. James | CLAN4 |
| Cladonia ramulosa | Cladonia pityrea (Florke) Fr. | CLPI4 |
| Cladonia rappii | Cladonia calycantha Delise ex Nyl. | CLCA12 |
| Cladonia rappii | Cladonia rappii A. Evans var. exilior (Abbayes) Ahti | CLRAE |
| Cladonia rei | Cladonia nemoxyna (Ach.) Arnold | CLNE4 |
| Cladonia scabriuscula | Cladonia macroptera Rasanen | CLMA15 |
| Cladonia sobolescens | Cladonia clavulifera Vainio | CLCL3 |
| Cladonia squamosa var. subsquamosa | Cladonia subsquamosa (Nyl. ex Leighton) Crombie | CLSU15 |
| Cladonia stricta | Cladonia gracilescens auct. | CLGR11 |
| Cladonia stricta | Cladonia lepidota auct. | CLLE6 |
| Cladonia subfurcata | Cladonia delessertii Vainio | CLDE7 |
| Cladonia subradiata | Cladonia balfourii auct. | CLBA4 |
| Cladonia subulata | Cladonia cornutoradiata (Navas) Sandst. | CLCO18 |
| Cladonia sulphurina | Cladonia gonecha (Ach.) Asah. | CLGO |
| Cladonia umbricola | Cladonia polydactyla (Florke) Sprengel | CLPO7 |
| Cladonia uncialis | Cladonia pseudostellata Asah. | CLPS62 |
| Cladonia wainioi | Cladonia pseudorangiformis Asah. | CLPS61 |
| conspicuous reindeer lichen | Cladina conspicua Ahti | CLCO11 |
| cup lichen | Cladonia abbreviatula G. Merr. | CLAB |
| cup lichen | Cladonia amaurocraea (Florke) Schaerer | CLAM60 |
| cup lichen | Cladonia anitae Culb. & C. Culb. | CLAN3 |
| cup lichen | Cladonia apodocarpa Robbins | CLAP2 |
| cup lichen | Cladonia bacilliformis (Nyl.) Gluck | CLBA3 |
| cup lichen | Cladonia bellidiflora (Ach.) Schaerer | CLBE4 |
| cup lichen | Cladonia botryocarpa G. Merr. | CLBO8 |
| cup lichen | Cladonia botrytes (K. Hagen) Willd. | CLBO9 |
| cup lichen | Cladonia brevis (Sandst.) Sandst. | CLBR4 |
| cup lichen | Cladonia caespiticia (Pers.) Florke | CLCA8 |
| cup lichen | Cladonia cariosa (Ach.) Sprengel | CLCA9 |
| cup lichen | Cladonia carneola (Fr.) Fr. | CLCA10 |
| cup lichen | Cladonia cenotea (Ach.) Schaerer | CLCE2 |
| cup lichen | Cladonia cervicornis (Ach.) Flotow | CLCE3 |
| cup lichen | Cladonia cervicornis (Ach.) Flotow ssp. cervicornis | CLCEC |
| cup lichen | Cladonia cervicornis (Ach.) Flotow ssp. verticillata (Hoffm.) Ahti | CLCEV60 |
| cup lichen | Cladonia chlorophaea (Florke ex Sommerf.) Sprengel | CLCH3 |
| cup lichen | Cladonia coccifera (L.) Willd. | CLCO12 |
| cup lichen | Cladonia coniocraea auct. | CLCO13 |
| cup lichen | Cladonia cornuta (L.) Hoffm. | CLCO19 |
| cup lichen | Cladonia cornuta (L.) Hoffm. ssp. cornuta | CLCOC3 |
| cup lichen | Cladonia crispata (Ach.) Flotow | CLCR5 |
| cup lichen | Cladonia crispata (Ach.) Flotow var. cetrariiformis (Delise) Vainio | CLCRC2 |
| cup lichen | Cladonia crispata (Ach.) Flotow var. crispata | CLCRC |
| cup lichen | Cladonia cristatella Tuck. | CLCR2 |
| cup lichen | Cladonia cryptochlorophaea Asah. | CLCR3 |
| cup lichen | Cladonia cyanipes (Sommerf.) Nyl. | CLCY3 |
| cup lichen | Cladonia dactylota Tuck. | CLDA2 |
| cup lichen | Cladonia decorticata (Florke) Sprengel | CLDE5 |
| cup lichen | Cladonia didyma (Fee) Vainio | CLDI9 |
| cup lichen | Cladonia dimorpha S. Hammer | CLDI11 |
| cup lichen | Cladonia dimorphoclada Robbins | CLDI12 |
| cup lichen | Cladonia ecmocyna Leighton | CLEC |
| cup lichen | Cladonia ecmocyna Leighton ssp. ecmocyna | CLECE |
| cup lichen | Cladonia fimbriata (L.) Fr. | CLFI2 |
| cup lichen | Cladonia furcata (Hudson) Schrader | CLFU3 |
| cup lichen | Cladonia furcata (Hudson) Schrader ssp. subrangiformis (Scriba ex Sandst.) Pisut | CLFUS |
| cup lichen | Cladonia glauca Florke | CLGL5 |
| cup lichen | Cladonia gracilis (L.) Willd. | CLGR13 |
| cup lichen | Cladonia gracilis (L.) Willd. ssp. gracilis | CLGRG3 |
| cup lichen | Cladonia gracilis (L.) Willd. ssp. turbinata (Ach.) Ahti | CLGRT2 |
| cup lichen | Cladonia gracilis (L.) Willd. ssp. vulnerata Ahti | CLGRV |
| cup lichen | Cladonia granulans Vainio | CLGR6 |
| cup lichen | Cladonia homosekikaica Nuno | CLHO3 |
| cup lichen | Cladonia humilis (With.) J. R. Laundon | CLHU |
| cup lichen | Cladonia hypoxantha Tuck. | CLHY |
| cup lichen | Cladonia imbricaria Kristinsson | CLIM2 |
| cup lichen | Cladonia incrassata Florke | CLIN3 |
| cup lichen | Cladonia leporina Fr. | CLLE4 |
| cup lichen | Cladonia luteoalba Wheldon & A. Wilson | CLLU3 |
| cup lichen | Cladonia macilenta Hoffm. | CLMA11 |
| cup lichen | Cladonia macroceras (Delise) Hav. | CLMA12 |
| cup lichen | Cladonia macrophyllodes Nyl. | CLMA14 |
| cup lichen | Cladonia magyarica Vainio | CLMA16 |
| cup lichen | Cladonia mateocyatha Robbins | CLMA17 |
| cup lichen | Cladonia maxima (Asah.) Ahti | CLMA18 |
| cup lichen | Cladonia merochlorophaea Asah. | CLME3 |
| cup lichen | Cladonia metacorallifera Asah. | CLME60 |
| cup lichen | Cladonia multiformis G. Merr. | CLMU60 |
| cup lichen | Cladonia ochrochlora Florke | CLOC60 |
| cup lichen | Cladonia P. Browne | CLADO3 |
| cup lichen | Cladonia pachycladodes Vainio | CLPA9 |
| cup lichen | Cladonia perforata A. Evans | CLPE5 |
| cup lichen | Cladonia perlomera Kristinsson | CLPE6 |
| cup lichen | Cladonia peziziformis (With.) J. R. Laundon | CLPE7 |
| cup lichen | Cladonia phyllophora Ehrh. ex Hoffm. | CLPH60 |
| cup lichen | Cladonia pleurota (Florke) Schaerer | CLPL60 |
| cup lichen | Cladonia pocillum (Ach.) Grognot | CLPO60 |
| cup lichen | Cladonia polycarpia G. Merr. | CLPO5 |
| cup lichen | Cladonia polycarpoides Nyl. | CLPO6 |
| cup lichen | Cladonia prolifica Ahti & S. Hammer | CLPR2 |
| cup lichen | Cladonia psoromica J. P. Dey | CLPS5 |
| cup lichen | Cladonia pyxidata (L.) Hoffm. | CLPY60 |
| cup lichen | Cladonia ramulosa (With.) J. R. Laundon | CLRA2 |
| cup lichen | Cladonia rei Schaerer | CLRE60 |
| cup lichen | Cladonia santensis Tuck. | CLSA7 |
| cup lichen | Cladonia scabriuscula (Delise) Nyl. | CLSC60 |
| cup lichen | Cladonia simulata Robbins | CLSI5 |
| cup lichen | Cladonia sobolescens Nyl. ex Vainio | CLSO4 |
| cup lichen | Cladonia squamosa (Scop.) Hoffm. var. subsquamosa (Nyl. ex Leighton) Vainio | CLSQS |
| cup lichen | Cladonia squamosa Hoffm. | CLSQ60 |
| cup lichen | Cladonia strepsilis (Ach.) Grognot | CLST6 |
| cup lichen | Cladonia stricta (Nyl.) Nyl. | CLST7 |
| cup lichen | Cladonia stricta (Nyl.) Nyl. var. uliginosa Ahti | CLSTU |
| cup lichen | Cladonia subfurcata (Nyl.) Arnold | CLSU60 |
| cup lichen | Cladonia subradiata (Vainio) Sandst. | CLSU9 |
| cup lichen | Cladonia subsetacea Robbins ex A. Evans | CLSU10 |
| cup lichen | Cladonia subsquamosa Krempelh. | CLSU62 |
| cup lichen | Cladonia subulata (L.) Weber ex F. H. Wigg. | CLSU63 |
| cup lichen | Cladonia symphycarpa (Florke) Fr. | CLSY61 |
| cup lichen | Cladonia umbricola Tonsberg & Ahti | CLUM4 |
| cup lichen | Cladonia uncialis (L.) F. H. Wigg. | CLUN60 |
| cup lichen | Cladonia verruculosa (Vainio) Ahti | CLVE4 |
| cylinder cup lichen | Cladonia cylindrica (A. Evans) A. Evans | CLCY4 |
| Dahl's cup lichen | Cladonia dahliana Kristinsson | CLDA3 |
| deformed cup lichen | Cladonia deformis (L.) Hoffm. | CLDE60 |
| Evans's reindeer lichen | Cladina evansii (Abbayes) Hale & Culb. | CLEV |
| false Evans's reindeer lichen | Cladina pseudoevansii (Asah.) Hale & Culb. | CLPS3 |
| farinose cup lichen | Cladonia farinacea (Vainio) A. Evans | CLFA3 |
| finger cup lichen | Cladonia digitata (L.) Hoffm. | CLDI10 |
| Florida cup lichen | Cladonia floridana Vainio | CLFL6 |
| Florke's cup lichen | Cladonia floerkeana (Fr.) Florke | CLFL5 |
| Gray's cup lichen | Cladonia grayi G. Merr. ex Sandst. | CLGR7 |
| Greenland cup lichen | Cladonia cornuta (L.) Hoffm. ssp. groenlandica (E. Dahl) Ahti | CLCOG2 |
| greygreen reindeer lichen | Cladina rangiferina (L.) Nyl. | CLRA60 |
| gymnoderma lichen | Gymnoderma lineare (A. Evans) Yoshim. & Sharp | GYLI |
| gymnoderma lichen | Gymnoderma Nyl. | GYMNO11 |
| Gymnoderma lineare | Cladonia linearis A. Evans | CLLI5 |
| intermediate cup lichen | Cladonia ecmocyna Leighton ssp. intermedia (Robbins) Ahti | CLECI |
| Japanese cup lichen | Cladonia nipponica Asah. | CLNI4 |
| Kanewsk's cup lichen | Cladonia kanewskii Oksner | CLKA3 |
| Labrador cup lichen | Cladonia labradorica Ahti & Brodo | CLLA8 |
| largeleaf cup lichen | Cladonia macrophylla (Schaerer) Stenh. | CLMA13 |
| Pacific reindeer lichen | Cladina portentosa (Dufour) Follmann ssp. pacifica (Ahti) Ahti | CLPOP |
| parasite cup lichen | Cladonia parasitica (Hoffm.) Hoffm. | CLPA13 |
| piedmont cup lichen | Cladonia piedmontensis G. Merr. | CLPI3 |
| prostrate cup lichen | Cladonia prostrata A. Evans | CLPR3 |
| Pycnothelia papillaria | Cladonia papillaria (Ehrh.) Hoffm. | CLPA16 |
| Pycnothelia papillaria | Nesolechia cladoniscum (Willey) Fink | NECL2 |
| pycothelia lichen | Pycnothelia papillaria Dufour | PYPA3 |
| Rapp's cup lichen | Cladonia rappii A. Evans | CLRA5 |
| Ravenel's cup lichen | Cladonia ravenelii Tuck. | CLRA3 |
| reindeer lichen | Cladina (Nyl.) Nyl. | CLADI3 |
| reindeer lichen | Cladina arbuscula (Wallr.) Hale & Culb. | CLAR60 |
| reindeer lichen | Cladina mitis (Sandst.) Hustich | CLMI60 |
| reindeer lichen | Cladina portentosa (Dufour) Follmann | CLPO4 |
| reindeer lichen | Cladina stygia (Fr.) Ahti | CLST5 |
| reindeer lichen | Cladina submitis (A. Evans) Hale & Culb. | CLSU6 |
| reindeer lichen | Cladina subtenuis (Abbayes) Hale & Culb. | CLSU7 |
| reindeer lichen | Cladina terrae-novae (Ahti) Hale & Culb. | CLTE9 |
| Robbins's cup lichen | Cladonia robbinsii A. Evans | CLRO7 |
| Sandstede's reindeer lichen | Cladina sandstedei (Abbayes) Ahti | CLSA6 |
| star reindeer lichen | Cladina stellaris (Opiz) Brodo | CLST60 |
| star reindeer lichen | Cladina stellaris (Opiz) Brodo var. aberrans (Abbayes) Ahti | CLSTA |
| sulphur cup lichen | Cladonia sulphurina (Michaux) Fr. | CLSU64 |
| Thiers's cup lichen | Cladonia thiersii S. Hammer | CLTH2 |
| Thomson's cup lichen | Cladonia thomsonii Ahti | CLTH60 |
| transcend cup lichen | Cladonia transcendens (Vainio) Vainio | CLTR60 |
| turgid cup lichen | Cladonia turgida Hoffm. | CLTU60 |
| vulcan cup lichen | Cladonia didyma (Fee) Vainio var. vulcanica (Zoll. & Moritzi) Vainio | CLDIV |
| Wain's cup lichen | Cladonia wainioi Savicz | CLWA5 |