This foliose lichen was seen in adnate form on the trunk of a large and old A. manzanita.
Common in mid upper crown of redwood. Voucher from 73m.
On conifer litterfall on south facing slope below open-grown Douglas fir tree.
Lichen found on a tree branch.
foliose lichen an oak tree
A patch of lichen growing on a tree just off the path.
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...