Claim: Gymnopilus imperialis is a fungus (from the Cortinariaceae family which has over 2100 species) that has gills on its convex cap.
Evidence: Gymnopilus imperialis is a species of mushroom in the family Cortinariaceae. The Cortinariaceae are a large family of gilled mushrooms found worldwide, containing over 2100 species. Kingdom: Fungi cap is convex