Index → Leafs → Parmotrema → P. arnoldii= Parmelia arnoldii Du Rietz
 Location: Great Smoky Mountains Date: 2011-06-02 Photo by: Jason Hollinger Notes: on Picea [Hollinger 2972]
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 Location: California, Mendocino County, Jughandle State Preserve Date: 2011-07-08 Photo by: Curtis Björk Notes: On trunk Alnus in creekside forest near upper beach margin
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 Location: Washington, Skamania County, Columbia River Gorge, at the base of Beacon Rock Date: 2011-04-02 Photo by: Curtis Björk Notes: On Alnus rubra trunk in conifer forest; note apothecia
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 Location: California, Humboldt County, Samoa Dunes Date: 2011-07-08 Photo by: Curtis Björk Notes: On tree branch in backdune forest, near marine shore
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Index → Leafs → Parmotrema → P. arnoldii
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