Buellia
11 species
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Buellia spuria
Description: Thallus grey to yellowish, areolate, prothallus black; Apothecia immersed at first, becoming slightly raised, to 0.7 mm in diameter, exciple dark brown.
Distribution: East of Cascades crest in Washington; southern US, Eastern Seaboard, Minnesota, Iowa, Missouri.
Substrate: On siliceous rock.
Description: Thallus grey to yellowish, areolate, prothallus black; Apothecia immersed at first, becoming slightly raised, to 0.7 mm in diameter, exciple dark brown.
Distribution: East of Cascades crest in Washington; southern US, Eastern Seaboard, Minnesota, Iowa, Missouri.
Substrate: On siliceous rock.
