 It has been described as inedible due to its toughness.With many cup fungi, microscopic analysis of the anatomy and structure of the apothecium is necessary for accurate identification of species, or to help distinguish between related species that have a similar external appearance.In "W. americana", the ectal excipulum (the outer layer of tissue comprising the apothecia) is 125 µm thick, and composed of dark angular to roughly spherical cells that are 40–70 µm in diameter.