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 resendei Xanthoria mendozae Xanthoria borealis Seirophora contortuplicata Candelariella spraguei Candelaria concolor
Letharia columbiana Pleopsidium flavum 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.

Collema glebulentum Collema fecundum Lichinella iodopulchra Lempholemma intricatum Leptogium plicatile Leptogium intermedium
Thermutis velutina Anema nummularium Synalissa symphorea Lichinodium sirosiphoideum Thyrea confusa Psorotichia taurica

Pimple Crusts   (90 genera)

Here belong all crusty chlorolichens with pimple-shaped perithecia.

Verrucaria epimaura Pyrenula cruenta Anthracothecium prasinum Naetrocymbe punctiformis Julella fallaciosa Mycoglaena myricae
Leptorhaphis epidermidis Arthopyrenia analepta Stictis urceolatum Mycoporum compositum Pseudosagedia cestrensis Tomasellia americana

Script Crusts   (36 genera)

Here belong all crusty chlorolichens with elongate or branched apothecia.

Llimonaea californica Xylographa pallens Fissurina insidiosa Thalloloma anguinum Phaeographis smithii Graphis striatula
Lithographa tesserata Thecaria quassiicola Elixia flexella Leiorreuma sericeum Glyphis cicatricosa Sarcographa labyrinthica

Button Crusts   (169 genera)

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

Placopsis lambii Rinodina herrei Ophioparma ventosa Lecania cyrtella Herteliana alaskensis Koerberiella wimmeriana
Frutidella caesioatra Bacidina contecta Carbonicola anthracophila Amygdalaria continua Carbonea vitellinaria 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 subalbicans Lepraria borealis Lepraria membranacea
Psilolechia clavulifera Cryptothecia striata Cryptothecia punctosorediata Crocynia pyxinoides Herpothallon rubrocinctum 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 Endocarpon pulvinatum Euopsis granatina Toninia arctica
Psora nipponica Fulgidea oligospora Peltula patellata Placidium acarosporoides Normandina pulchella Leciophysma finmarkicum

The Navels   (11 genera)

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

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

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 Montanelia disjuncta Melanohalea infumata Melanelixia fuliginosa
Melanelia stygia Tuckermannopsis americana Kaernefeltia californica Neofuscelia verruculifera Allantoparmelia almquistii 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.

Xanthoparmelia idahoensis Punctelia jeckeri Hypotrachyna sinuosa Cavernularia hultenii Asahinea chrysantha Relicina eximbricata
Platismatia herrei Flavocetraria cucullata Flavopunctelia praesignis Parmelina coleae Cetradonia linearis Bulbothrix scortella

The Petals   (15 genera)

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

Squamarina lentigera Physcia alnophila Physcia adscendens Anaptychia bryorum Physciella chloantha Dirinaria purpurascens
Heterodermia galactophylla Heterodermia leucomela Physconia isidiomuscigena Anzia colpodes Pyxine sorediata 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 var. tenuior Lobaria linita Solorina bispora Peltigera occidentalis
Peltigera extenuata Peltigera collina Nephroma helveticum ssp. helveticum Pseudocyphellaria hawaiiensis 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 Vestergrenopsis isidiata Placynthium nigrum Placynthium asperellum Pectenia plumbea
Coccocarpia prostrata Pannaria lurida ssp. lurida Parmeliella appalachensis Parmeliella parvula Lepidocollema stylophorum 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 Cyphelium karelicum Sclerophora amabilis Calicium adaequatum Thelomma mammosum
Stenocybe pullatula Gomphillus americanus Phaeocalicium curtisii 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.

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

The Scrubs   (28 genera)

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

Siphula ceratites Stereocaulon apocalypticum Dactylina ramulosa Dendriscocaulon intricatulum Niebla cephalota Loxosporopsis corallifera
Tholurna dissimilis Pycnothelia papillaria Leprocaulon americanum Roccella gracilis Dendrographa leucophaea Cornicularia normoerica

The Hairs   (9 genera)

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

Bryoria nitidula Bryoria bicolor Bryoria furcellata Bryocaulon divergens Usnea hirta Usnea substerilis
Usnea cavernosa Nodobryoria oregana Alectoria imshaugii Alectoria ochroleuca 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 Muellerella pygmaea Nectriopsis lecanodes Endococcus propinquus Cercidospora caudata Biatoropsis usnearum
Dactylospora athallina Vouauxiella lichenicola Cystobasidium hypogymniicola Lichenoconium lecanorae Lichenopuccinia poeltii Llimoniella phaeophysciae

The Honoraries   (11 genera)

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

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