Rhizoplaca genus -- Lecanoraceae 

             10x magnification
golden rimmed navel lichen (Rhizoplaca chrysoleuca) -- in January -- South Valley Loop Trail, Lory State Park, CO
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​golden rimmed navel lichen (Rhizoplaca chrysoleuca) -- in February -- Arthur's Rock Trail, Lory State Park, CO  
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​golden rimmed navel lichen (Rhizoplaca chrysoleuca) -- in March -- Buckhorn Canyon, Larimer County, CO