Common Greenshield. Found on a red oak tree base in the shade.
On a corpus rubra tree. Don't get nutrients from the tree. Only use it to grow
Too high up to check underneath
On redwood bark, covering about 4 square inches. Very large and flat leaves.
In the plot, there were lichen on the loose branches in that area. The plot had partial shade and partial sunlight.
Flavoparmelia caperata or common greenshield lichen (from Lichens of North America) is a medium to large foliose lichen that has a very distinctive pale yellow green upper cortex when dry. The rounded lobes, measuring 3–8 mm (0.1–0.3 in) wide, usually have patches of granular soredia arising from pustules. The lobes of the thallus may be smooth, but quite often have a wrinkled appearance especially in older specimens. The lower surface is black except for a brown margin; rhizomes...