Index → Scripts → Arthonia → A. ilicina= Arthothelium ilicinum (Taylor) P. James
 Location: Oregon, Cape Lookout State Park
Photo by: Richard Droker
Notes: on Alnus rubra
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 Location: California, Mendocino County, Jughandle State Preserve
Date: 2011-07-09
Photo by: Curtis Björk
Notes: On bark of Alnus in Sequoia forest
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 Location: Washington, Redondo Beach Park, northern end of Puget Sound
Date: 2011-04-02
Photo by: Curtis Björk
Notes: On trunk of Alnus rubra in near-shore forest
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 Location: Washington, Cowlitz County, Toutle River, NE of Castle Rock
Date: 2011-04-02
Photo by: Curtis Björk
Notes: On Alnus rubra trunk on mud flow material from Mt. St. Helens 1980 eruption
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 Location: Oregon, Cape Lookout State Park
Photo by: Richard Droker
Notes: on Alnus rubra
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