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Common Greenshield Lichen

Flavoparmelia caperata

Description:

Spotted this beautiful lichen growing on a granite outcropping on top of Kennesaw Mountain. Very striking blue tint! 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; rhizines attached to the lower surface are black and unbranched.

Habitat:

On bark of trees, but occasionally on rock.

Notes:

The Tarahumar of northern Mexico used powdered Flavoparmelia caperata to treat burns.

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1 Comment

QWMom
QWMom 11 years ago

Updated ID

QWMom
Spotted by
QWMom

Georgia, USA

Spotted on Feb 1, 2013
Submitted on Feb 6, 2013

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