Parmelia (= Flavoparmelia ) caperata is a foliose, roughly round, white greenish lichen. The biggest individuals achieve 20-25 cm diameter. The center of the tallus is squamulose or powdery because it's plenty of soredia -these are ready for dispersion small packs o fungal hyphae plus algae cells- while the surroundings are made of smooth tallus with round edges. Parmelia caperata is mainly found in humid evergreen oak woods, onto the trunk or onto the fork of the holm oaks where its white color outstands on their black bark. Although not so often, it can be found onto the rocks surface as well.

See also the article Més fums, menys líquens (= More smoke, less lichens), in Catalan. [photo Jordi Badia]