The "classic" gill fungus has an open-umbrella shape, and a "classic" mushroom is shown at the right. That's the deadly poisonous Amanita verna, one of several mushrooms going by the quaint name of "Destroying Angel." Only a few gilled mushroom species possess both the ring (also called the annulus) and the cup (also called the volva). Sometimes a mushroom species arises from a cup but has no ring; sometimes it has a ring, but no cup, and; often it bears neither ring nor cup.