Rhizoplaca
Rhizoplaca is a genus of lichenized fungi in the family Lecanoraceae. Members of the genus are commonly called rimmed navel lichens because of their umbilicate growth form and lecanorine apothecia, also rock-posy lichen and rockbright.
Species
, Species Fungorum accepts 17 species of Rhizoplaca:Rhizoplaca arbuscula Rhizoplaca callichroa Rhizoplaca glaucophana Rhizoplaca haydenii Rhizoplaca idahoensis Rhizoplaca melanophthalma Rhizoplaca nigromarginata Rhizoplaca novomexicana Rhizoplaca occulta Rhizoplaca opaca Rhizoplaca ouimetensis Rhizoplaca pachyphylla Rhizoplaca parilis Rhizoplaca polymorpha Rhizoplaca porteri Rhizoplaca shushanii- ''Rhizoplaca weberi''