GSD Species Synonymy

Current Name:
Umbilicaria rigida (Du Rietz) Frey, Hedwigia 71: 117 (1931)

Synonymy:
Gyrophora rigida Du Rietz, Ark. Bot. 19(no. 12): 3 (1925)
Umbilicaria rigida (Du Rietz) Frey, Hedwigia 71: 117 (1931)
Agyrophora rigida (Du Rietz) Llano, Monograph of the Lichen Family Umbilicariaceae in the Western Hemisphere: 58 (1950)

Position in classification:
Umbilicariaceae, Umbilicariales, Umbilicariomycetidae, Lecanoromycetes, Ascomycota, Fungi