Placopsis gelida

Placopsis gelida

Placopsis gelida (L.) Lindsay (previously known as Lecanora gelida (L.) Ach.) is one of the lichenized fungi known as "Bullseye Lichens" (genus Placopsis), living mutualistic with algal photobionts.
Placopsis gelida Lichen Geotagged,Placopsis gelida,Spring,United States,moss

Naming

Some authorities will have these in the family Agyriaceae (order Agyriales), others in the family Trapeliaceae (order Trapeliales).

References:

Some text fragments are auto parsed from Wikipedia.

http://www.lichens.lastdragon.org/Placopsis_gelida.html
http://lichenportal.org/portal/taxa/index.php?taxon=55632
Taxonomy
KingdomFungi
DivisionAscomycota
ClassLecanoromycetes
OrderTrapeliales
FamilyTrapeliaceae
GenusPlacopsis
SpeciesPlacopsis gelida
Photographed in
United States of America