United States: Washington State: King County: Lake Forest Park
I am guessing this lichen is Parmelia. en.wikipedia.org/wiki/Parmelia_(lichen) Kingdom:Fungi Division:Ascomycota Class:Lecanoromycetes Order:Lecanorales Family:Parmeliaceae Genus:Parmelia i09
Gray Parmelia Lichen on our Japanese Lace Leaf Maple
Photo of Lake Forest Park by