The lichen flora of Ontario is rich, diverse, and colourful. The photos below, from FBO Past President Troy McMullin, cover many of the species found across our province.
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Acarospora glaucocarpa
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Acarospora glaucocarpa
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Alectoria ochroleuca
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Anaptychia crinalis
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Anaptychia palmulata
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Arctoparmelia centrifuga
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Arctoparmelia incurva
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Arctoparmelia incurva
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Arthonia caesia
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Arthonia caudata
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Bacidia rubella
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Bacidia schweinitzii
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Bacidina egenula
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Baeomyces carneus
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Bagliettoa baldensis
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Bilimbia sabuletorum
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Bryoria furcellata
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Bryoria fuscescens
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Bryoria nadvornikiana
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Bryoria nadvornikiana
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Bryoria nitidula
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Bryoria trichodes ssp. trichodes
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Caloplaca feracissima
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Caloplaca flavorubescens
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Caloplaca flavovirescens
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Caloplaca flavovirescens
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Caloplaca holocarpa
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Caloplaca subsoluta
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Candelariella aurella
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Cetrelia chicitea
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Cetrelia chicitea
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Chaenotheca chrysocephala
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Cladonia amaurocraea
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Cladonia bellidiflora
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Cladonia cariosa
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Cladonia cenotea
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Cladonia deformis
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Cladonia deformis
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Cladonia digitata
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Cladonia fimbriata
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Cladonia furcata
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Cladonia gracilis ssp. turbinata
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Cladonia magyarica
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Cladonia multiformis
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Cladonia multiformis
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Cladonia parasitica
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Cladonia pocillum
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Cladonia rangiferina
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Cladonia stellaris
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Cladonia stellaris
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Cladonia stygia
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Cladonia stygia
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Cladonia sulphurina
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Cladonia symphycarpa
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Cladonia verticillata
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Cladonia wainioi
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Cliostomum griffithii
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Coccocarpia palmicola
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Coccocarpia palmicola
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Collema furfuracea
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Collema tenax
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Cyphelium tigillare
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Dermatocarpon luridum
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Dermatocarpon luridum
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Dibaeis baeomyces
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Dictyocatenulata alba
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Dimelaena oreina
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Evernia mesomorpha
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Flavopunctelia soredica
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Fuscidea pusilla
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Fuscopannaria leucosticta
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Graphis scripta
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Graphis scripta
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Heterodermia obscurata
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Heterodermia obscurata
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Hyperphyscia syncolla
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Hypocyenmyces scalaris
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Hypocyenmyces scalaris
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Hypogymnia bitteri
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Hypogymnia bitteri
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Hypogymnia physodes
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Hypogymnia physodes
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Hypogymnia tubulosa
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Hypogymnia tubulosa
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Hypogymnia vittata
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Icmadophila ericetorum
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Icmadophila ericetorum
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Imshaugia placorodia
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Julella fallaciosa
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Lasallia papulosa
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Lecanora hybocarpa
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Lecanora juniperina
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Lecanora muralis
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Lecanora semipallida
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Lecanora symmicta
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Lecanora thysanophora
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Lecanora thysanophora
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Lecidella stigmatea
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Lepraria normandinoides
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Lepraria normandinoides
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Leptogium azureum
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Leptogium azureum
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Leptogium corticola
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Leptogium cyanescens
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Leptogium laceroides
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Leptogium lichenoides
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Leptogium rivulare
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Leptogium rivulare
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Leptogium subtile
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Lichenomphalia hudsoniana
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Lichenomphalia hudsoniana
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Lichenomphalia hudsoniana
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Lobaria pulmonaria
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Lobaria quercizans
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Lobaria quercizans
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Lobaria scrobiculata
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Lopadium disciforme
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Melanelia disjuncta
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Melanelia hepatizon
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Melanelia hepatizon
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Melanielia sorediosa
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Menegazzia subsimilus
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Multiclavula mucida
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Myelochroa aurulenta
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Nephroma arcticum
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Nephroma bellum
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Nephroma resupinatum
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Ochrolechia frigida
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Opegrapha varia
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Pachypiale fagicola
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Pannaria conoplea
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Pannaria conoplea
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Parmelia sulcata
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Parmeliopsis ambigua
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Parmeliopsis hyperopta
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Parmotrema crinitum
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Parmotrema reticulatum
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Parmotrema reticulatum
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Peltigera canina
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Peltigera evansiana
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Peltigera extenuata
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Peltigera horizontalis
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Peltigera horizontalis
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Peltigera horizontalis
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Peltigera lepidophora
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Peltigera lepidophora
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Peltigera leucophlebia
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Peltigera leucophlebia
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Peltigera leucophlebia
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Peltigera malacea
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Peltigera membranacea
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Peltigera scabrosa
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Peltigera venosa
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Peltigera venosa
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Pertusaria globularis
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Pertusaria subobducens
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Phaeophyscia ciliata
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Phaeophyscia hirsuta
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Phaeophyscia orbicularis
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Phaeophyscia orbicularis
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Phaeophyscia orbicularis
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Phaeophyscia pusillioides
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Phaeophyscia rubropulchra
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Physcia adscendens
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Physcia biziana
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Physcia caesia
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Physcia millegrana
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Physcia stellaris
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Physcia stellaris
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Physciella melanchra
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Physconia detersa
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Physconia enteroxantha
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Physconia subpallida
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Physconia subpallida
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Pilophorus acicularis
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Pilophorus acicularis
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Porpidia flavocaerulescens
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Protoblastenia rupestris
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Protopannaria pezizoides
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Protopannaria pezizoides
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Protoparmelia badia
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Pseudevernia consocians
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Psilolechia lucida
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Psora decipiens
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Punctelia bolliana
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Punctelia rudecta
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Pyrenula pseudobufonia
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Pyxine sorediata
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Ramalina pollinaria
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Rhizocarpon geographicum
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Rhizocarpon lecanorinum
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Rhizoplaca chrysoleuca
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Rhizoplaca melanophthalma
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Ropalospora viridis
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Sarcogyne regularis
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Sarea resinae
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Solorina saccata
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Solorina saccata
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Staurothele drummondii
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Stictis urceolatum
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Teloschistes chrysophthalmus
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Teloschistes chrysophthalmus
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Tephromela atra
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Thamnolia vermicularis
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Thrombium epigaeum
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Trapeliopsis granulosa
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Tremolecia atrata
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Trypethelium virens
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Tuckermanopsis americana
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Umbilicaria americana
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Umbilicaria americana
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Umbilicaria americana
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Umbilicaria deusta
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Umbilicaria hyperborea
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Umbilicaria mühlenbergii
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Umbilicaria mühlenbergii
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Umbilicaria proboscidea
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Umbilicaria proboscidea
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Usnea cavernosa
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Usnea longissima
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Usnocetraria oaksiana
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Vulpicida pinastri
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Xanthomendoza fallax
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Xanthomendoza hasseana
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Xanthomendoza ulophyllodes
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Xanthomendoza weberi
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Xanthoria elegans
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Xanthoria elegans
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Xanthoria parientina
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Xanthoria parientina
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Xanthoria polycarpa