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Definition of Stropharia rugoso-annulata
1. Noun. A large gilled fungus with a broad cap and a long stalk; the cap is dark brown; the white gills turn dark purplish brown with age; edible and choice. 
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1. Noun. A large gilled fungus with a broad cap and a long stalk; the cap is dark brown; the white gills turn dark purplish brown with age; edible and choice.