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Eulychnia iquiquensis cactus are densely covered with lichens due to constant moisture of coastal fog. Pan de Azucar National Park

File: cactus-lichens.jpg

Title: Eulychnia iquiquensis cactus are densely covered with lichens due to constant moisture of coastal fog. Pan de Azucar National Park

Credit: Gerhard Hüdepohl / atacamaphoto