An Example of Xanthoparmelia cumberlandia?
Shingled Rock Shield Lichen, Questionable Rock Frog Lichen, Cumberland Rock Shield Lichen, Xanthoparmelia cumberlandia... take your pick. I am going out on a limb on this one.
E-Flora BC Atlas says, “ Xanthoparmelia is taxonomically the most difficult of the genera previously united within Parmelia. Reliable identification of many species depends on a knowledge of the chemical substances they contain. Though this is most reliably attained through use of thin-layer chromatography, the chemistry of the B.C. Species can usually be surmised from the medullary reaction with K.”
This example is a smaller, 4cm in diameter, and younger one compared to older specimens.
No species identified
The species on this photo is not identified yet. When signed in, you can identify species on photos that you uploaded. If you have earned the social image editing capability, you can also identify species on photos uploaded by others.