The kids said this lichen is called "Dragon's Skin" because, yes, it does look very much like the skin of a dragon.
About head height growing on a valley oak. A few more in the area. About five inches across for the first picture. Two inch for the second.
Found on large bigleaf maple
Growing on the side of an oaktree this fungus fascinated me. It almost looked like wilted leaves, and was hard to the touch. I looked at neighboring Oak trees and didn't see it growing on them
The Lobariaceae are a lichenized family of fungi in the order Peltigerales (suborder Peltigerineae). Species of this family have a widespread distribution, particularly in the tropics and southern temperate areas.
