entoloma lividum: a deadly poisonous agaric; a large cap that is first white (livid or lead-colored) and then turns yellowish or tan
agaric: a saprophytic fungus of the order Agaricales having an umbrellalike cap with gills on the underside
kettle hole: (geology) a hollow (typically filled by a lake) that results from the melting of a mass of ice trapped in glacial deposits