 "Wynnea" species have a worldwide distribution and have been collected from the United States, Costa Rica, India, and China.The genus "Wynnea" was circumscribed by English naturalist Miles Joseph Berkeley in 1866 to accommodate the species "Wynnea gigantea" and "Peziza macrotis".The former specimen was collected by Botteri near Orizaba, Mexico, and the latter had been described by Berkeley in his "Journal of Botany and Kew Garden Miscellany" (1851) Both species were subsequently illustrated in Cooke's "Micrographia".