 In 1946, French mycologist Marcelle Louise Fernande Le Gal determined that the ascus in "W. americana" was similar in structure to those species he placed in the suboperculate series.The common names for "W. americana" are "moose antlers", or "rabbit ears".The fruit bodies (technically called apothecia) of "W. americana" are erect and spoon- or ear-shaped, and may reach up to tall by wide with the edges usually rolled inward.