Cladonia foliacea is a squamulose lichen. This photo was taken in La Rioja, Spain.

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Photo credit: © José María Barres Manuel / Alamy / Afripics
License: Royalty Free
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Keywords: ascomycota, botany, cladonia, cladoniaceae, close, foliacea, fungi, la, lichen, rioja, soil, spain, squamulose, symbiosis