Shingled rock shield lichen

Xanthoparmelia cumberlandia

The Shingled rock-shield (Xanthoparmelia cumberlandia), alternatively called the Cumberland Rock Shield Lichen or Questionable Rock Frog Lichen is a yellow-green, foliose lichen said to be found over large parts of Europe and North and South America, mostly at intermediate to moderately high elevations.
Cumberland Rock-shield Lichen On the Canadian Shield rock faces one can find the Cumberland Rock-shield (Xanthoparmelia cumberlandia) lichen at Alleyn-et-Cawood, Quebec, Canada. Alleyn-et-Cawood,Canada,Canadian Shield,Cumberland Rock-shield,Geotagged,Lichen,Quebec,Shingled rock shield lichen,Summer,Xanthoparmelia cumberlandia

Appearance

There seem to be three distinct age classes: juvenile, adult, and senescent, but these do not necessarily correspond with size. The Shingled rock-shield is a poor colonizer and new, mostly nearby, lichen colonies are only established occasionally, not as a rule annually.

References:

Some text fragments are auto parsed from Wikipedia.

lichenportal : https://lichenportal.org/cnalh/taxa/index.php?taxon=54737&clid=1016

https://mushroomobserver.org/name/show_name/6452
Taxonomy
KingdomFungi
DivisionAscomycota
ClassLecanoromycetes
OrderLecanorales
FamilyParmeliaceae
GenusXanthoparmelia
SpeciesXanthoparmelia cumberlandia
Photographed in
Canada