Unresolved name

Unresolved name: Fungus » Dikarya » Sac Fungi » Pezizomycotina » Lecanoromycetes » Umbilicariales » Umbilicariaceae » Navel Lichen «

Umbillicaria rigida (Du Rietz) Frey

Umbillicaria rigida is a species of in the family Umbilicariaceae.