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Pleopsidium flavum

Pleopsidium flavum
Gold Cobblestone Lichen (1246287349).jpg
Pleopsidium flavum
Scientific classification
Kingdom: Fungi
Division: Ascomycota
Class: Lecanoromycetes
Order: Acarosporales
Family: Acarosporaceae
Genus: Pleopsidium
Species: P. flavum
Binomial name
Pleopsidium flavum
Synonyms

Acaraspora chlorophana


Acaraspora chlorophana

Pleopsidium flavum (gold cobblestone lichen) is a distinctively colored, bright lemon-yellow to chartreusecrustose lichen that grows in high elevations (montane to alpine) on vertical or overhanging hard felsic rock (e.g. granite) in western North America. Its thallus grows in a circular outwardly radiating pattern (crustose placoidioid), with 1mm wide lobed edges. This is the identity of the vivid, lime-green lichens often photographed on granite boulders in the Wichita Mountains Wildlife Refuge of Oklahoma.

It was formerly classified as Acaraspora chlorophana. It is in the Pleopsidium genus of the Acarosporaceae family.

It is similar to Acarospora schleicheri, which grows on soil (terricolous lichen) and rarely on rock, and to Pleopsidium chlorophanum, which favors dry arctic or alpine sandstone cliffs and boulders.



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