Caliciales

order of lichens Caliciales (Caliciales) is an order comprising closely related families of organisms. It contains 2 families with 80 known species. This includes the family groups Caliciaceae, and Physciaceae. Among its members, 18 species are currently classified as threatened (Critically Endangered, Endangered, or Vulnerable). It belongs to Lecanoromycetes (Lecanoromycetes).