| Noun | 1. | Stropharia ambigua - a gilled fungus with a long stalk and a yellow slimy cap from which fragments of the broken veil hang; gills are initially white but become dark brown as spores are releasedagaric - a saprophytic fungus of the order Agaricales having an umbrellalike cap with gills on the underside genus Stropharia, ring-stalked fungus, Stropharia - genus of gill fungi with brown spores that is closely related to Agaricus; here placed in its own family Strophariaceae |