Rhizocarpon alaxensis sp. nov., R. cummulatum sp. nov., R. sect. Superficiale (Runem.) stat. nov., sect. Alpicola (Runem.) stat. nov., sect. Viridiatrum (Runem.) stat. nov., subgen. Phaeothallus subgen. nov., sect. Rittokense sect. nov., sect. Albothallus sect. nov., sect. Fuscothallus sect. nov., R. riparium subsp. lindsayanum (Ras.) comb. nov.