A B C D E F G H I J K L M N O P R S T U V W X
Igneose: Flames
Gelatinose: Gels
Crustose: Pimples Scripts Buttons Dusts
Squamulose: Scales
Chloro Foliose: Navels Browns Leafs Petals
Cyano Foliose: Mantles Underlays
Fruticose: Stickpins Clads Scrubs Hairs Gossamers
Etceterose: Cling-ons Honoraries
Alphabetic Index Morphogroup Index Phylogroup Index
About

The Flames   (18 genera)

Here belong all lichens having a bright yellow or orange thallus, regardless of growth form. (Note: For species consisting exclusively of yellow- or orange-rimmed apothecia, see the Button Lichens.)

Xanthoria mendozae Xanthoria resendei Xanthoria borealis Candelariella spraguei Candelariella aggregata Fulgensia bracteata
Pleopsidium flavum Candelaria concolor Tremolecia atrata Teloschistes chrysophthalmus Placomaronea mendozae Catolechia wahlenbergii

The Gels   (45 genera)

Here belong all sombre-coloured cyanobacterial lichens that are dark within (i.e., lack a white medulla), regardless of growth form.

Lichinella iodopulchra Leptogium plicatile Leptogium intermedium Collema fecundum Ephebe hispidula Anema nummularium
Steineropsis alaskana Spilonemella americana Leptochidium albociliatum Cryptothele granuliformis Erinacellus dendroides Pterygiopsis concordatula

Pimple Crusts   (90 genera)

Here belong all crusty chlorolichens with pimple-shaped perithecia.

Thrombium epigaeum Collemopsidium foveolatum Verrucaria epimaura Thelotrema lepadinum Polyblastia cucurbitula Pyrenula cruenta
Trypethelium aeneum Ocellularia praestans Mycoglaena myricae Coccotrema maritimum Naetrocymbe punctiformis Julella fallaciosa

Script Crusts   (36 genera)

Here belong all crusty chlorolichens with elongate or branched apothecia.

Arthonia pruinata Schismatomma pericleum Llimonaea californica Diorygma antillarum Acanthothecis peplophora Dyplolabia afzelii
Platygramme pachnodes Thecaria quassiicola Elixia flexella Glyphis cicatricosa Sarcographa labyrinthica Enterographa anguinella

Button Crusts   (169 genera)

Here belong all crusty chlorolichens with rounded apothecia (sometimes immersed).

Ochrolechia androgyna Biatora cuprea Pyrrhospora quernea Palicella schizochromatica Bellemerea subsorediza Bactrospora cascadensis
Acarospora moenium Hertelidea botryosa Byssoloma subdiscordans Agyrium rufum Fellhanera bouteillei Gyalecta geoica

Dust Crusts   (8 genera)

Here belong all powdery or fluffy crusty chlorolichens entirely lacking a cortex and rarely if ever bearing apothecia or perithecia.

Chrysothrix granulosa Chrysothrix chlorina Lepraria albicans Lepraria borealis Lepraria membranacea Psilolechia lucida
Psilolechia clavulifera Cryptothecia striata Cryptothecia punctosorediata Herpothallon rubrocinctum Crocynia pyxinoides Botryolepraria lesdainii

The Scales   (31 genera)

Here belong all colonial squamulose chlorolichens and cyanolichens consisting of numerous tiny, mostly rather short “fish scales”.

Solenopsora holophaea Anamylopsora pulcherrima Hypocenomyce scalaris Vahliella californica Endocarpon pulvinatum Agonimia tristicula
Toninia arctica Catapyrenium daedaleum Normandina pulchella Waynea californica Flakea papillata Gypsoplaca macrophylla

The Navels   (11 genera)

Here belong all foliose chlorolichens with a white medulla and a single central point of attachment.

Umbilicaria cylindrica Umbilicaria hirsuta Umbilicaria decussata Umbilicaria arctica Rhizoplaca subdiscrepans Rhizoplaca idahoensis
Rhizoplaca peltata Glypholecia scabra Lasallia papulosa Dermatocarpon meiophyllizum Dermatocarpon miniatum var. complicatum Phylliscum demangeonii

The Browns   (13 genera)

Here belong all foliose chlorolichens with a white medulla and distinctly brownish or blackish lobes.

Cetraria ericetorum ssp. ericetorum Cetraria andrejevii Masonhalea richardsonii Melanelixia fuliginosa Melanohalea infumata Melanelia stygia
Melanelia hepatizon Montanelia disjuncta Kaernefeltia californica Neofuscelia verruculifera Tuckermannopsis americana Tuckermanella fendleri

The Leafs   (35 genera)

Here belong all foliose chlorolichens with a white (or coloured) medulla and short to elongate lobes somewhat shiny near the tips.

Cetrelia cetrarioides Brodoa oroarctica Relicina eximbricata Imshaugia aleurites Cavernularia hultenii Arctoparmelia separata
Flavocetraria cucullata Myelochroa aurulenta Ahtiana pallidula Menegazzia subsimilis Pseudevernia intensa Parmelina coleae

The Petals   (15 genera)

Here belong all foliose chlorolichens with a white medulla and distinctly elongate lobes dull and/or frosted near the tips.

Phaeophyscia decolor Lobothallia melanaspis Squamarina lentigera Anaptychia bryorum Physcia alnophila Physcia adscendens
Physciella chloantha Physconia isidiomuscigena Heterodermia galactophylla Pyxine sorediata Anzia colpodes Hyperphyscia minor

The Mantles   (10 genera)

Here belong all foliose cyanolichens (and cephalodiate lichens) with a white medulla and broad, mostly rounded, loosely attached lobes.

Sticta arctica Sticta limbata Lobaria linita Lobaria linita var. tenuior Solorina bispora Peltigera collina
Peltigera extenuata Peltigera occidentalis Peltigera phyllidiosa Nephroma helveticum ssp. helveticum Crocodia aurata Erioderma pedicellatum

The Underlays   (11 genera)

Here belong all foliose cyanolichens with a white medulla and more or less long, narrow, generally closely attached lobes, frequently with a fungal “underlay” when young.

Fuscopannaria leucostictoides Fuscopannaria cyanolepra Fuscopannaria maritima Massalongia microphylliza Placynthium nigrum Placynthium asperellum
Pectenia plumbea Coccocarpia prostrata Pannaria lurida ssp. lurida Parmeliella appalachensis Parmeliella parvula Koerberia biformis

The Stickpins   (19 genera)

Here belong crusty or squamulose chlorolichens (and honorary lichens) with small to tiny, erect capillary fruiting stalks and/or smudgeable spores.

Chaenotheca cinerea Chaenotheca chlorella Mycocalicium subtile Thelomma mammosum Calicium adaequatum Sclerophora amabilis
Microcalicium ahlneri Stenocybe pullatula Gomphillus americanus Tricharia santessonii Sphinctrina tubaeformis Chaenothecopsis haematopus

The Clads   (2 genera)

Here belong Cladonia and its allies: you either know this group or you don't.

Cladina mitis Cladina ciliata Cladina stellaris Cladonia crispata var. cetrariiformis Cladonia kanewskii Cladonia cenotea
Cladonia singularis Cladonia squamosa Cladonia luteoalba Cladonia scabriuscula Cladonia bellidiflora Cladonia deformis

The Scrubs   (28 genera)

Here belong all club-like and shrub-like fruticose macrolichens or mesolichens with a white medulla (except the Clads).

Dactylina ramulosa Coelocaulon aculeatum Stereocaulon apocalypticum Evernia mesomorpha Pilophorus cereolus Baeomyces placophyllus
Ramalina canariensis Tholurna dissimilis Niebla cephalota Pycnothelia papillaria Roccella gracilis Dendrographa leucophaea

The Hairs   (9 genera)

Here belong all hair-like fruticose macrolichens with a white medulla.

Bryocaulon divergens Usnea hirta Usnea substerilis Usnea cavernosa Bryoria bicolor Bryoria nitidula
Bryoria furcellata Alectoria imshaugii Alectoria ochroleuca Nodobryoria oregana Gowardia nigricans Sulcaria badia

The Gossamers   (6 genera)

Here belong all hair-like fruticose mesolichens without a white medulla.

Cystocoleus ebeneus Cystocoleus ebeneus Coenogonium luteum Coenogonium luteum Coenogonium pineti Coenogonium pineti
Coenogonium implexum Pseudephebe minuscula Pseudephebe minuscula Pseudephebe minuscula Pseudephebe pubescens Pseudephebe pubescens

The Cling-ons   (63 genera)

Here belong all unlichenized fungi and lichens that routinely grow on or parasitize other lichens.

Phacopsis vulpina Tremella diploschistina Lichenodiplis lecanorae Cercidospora caudata Minutoexcipula mariana Plectocarpon nashii
Cystobasidium hypogymniicola Clypeococcum hypocenomycis Lichenoconium lecanorae Lichenothelia tenuissima Lichenochora lepidiotae Sphaerellothecium coniodes

The Honoraries   (11 genera)

Here belong various additional fungi and algae that traditionally get studied by lichenologists.

Lichenomphalia hudsoniana Lichenomphalia velutina Lichenomphalia umbellifera Lichenomphalia alpina Multiclavula mucida Multiclavula mucida
Multiclavula vernalis Multiclavula vernalis Mastodia tessellata Sarea difformis Sarea difformis Sarea resinae