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Interesting. Should have known there were many different lichens with different names.
Angel, I don't have any where I live now but where I used to live I had lots of trees and had some there. I had no idea there were so many kinds of lichens. They are so pretty to me. You can Google lichens on rocks (or trees) and get lots of pictures to compare to yours. Thanks for stopping by.
Do you have any of them in your yard, Nana33? I don't know if mine are the ones in your puzzle. I'll have to take some pictures and see how it goes. Thanks for an interesting look at the tiny stuff. Good puzzle, too.