Umbilicariales

order of fungi Umbilicariales (Umbilicariales) is an order comprising closely related families of organisms. It contains 5 families with 31 known species. This includes the family groups Arthrorhaphidaceae, Elixiaceae, Fuscideaceae, Ophioparmaceae, and Umbilicariaceae. Among its members, 2 species are currently classified as threatened (Critically Endangered, Endangered, or Vulnerable). It belongs to Lecanoromycetes (Lecanoromycetes).