This is a foliose lichen that can be found on tree branches and the bark of Grand Fir trees. It's edges curl up and it has an off-white, pale-green, almost egg shell and sickly color. Up close, it looks to be from a horror movie, eating and consuming everything it touches.
There is both foliose and fruiticose lichen in this picture. I'm currently curious about what specie the foliose lichen is.
Net-marked parmelia (Parmelia sulcata), or Shield lichen, is a lichen in the family Parmeliaceae. It is very tolerant of pollution and is widespread making it one of the more common lichens.
