A family of lichens that includes the genus Cladonia and related branching lichens found in diverse terrestrial environments.
From the genus Cladonia plus the Linnaean family suffix '-aceae,' following taxonomic convention. Based on Greek 'klados' (branch) referring to their distinctive structure.
The Cladoniaceae family is incredibly diverse—over 400 species exist in various colors from red to yellow to gray—and because they're so sensitive to air pollution, scientists use them as natural indicators of air quality in forests and mountains.
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