Syn.: Parmelia disjuncta Erichsen, P. sorediata auct., non (Ach.) Th. Fr.

On siliceous and sandstone rocks in natural, open habitats.

Belgium: Ard.: AR.

Luxembourg: Ard.: R, Lorr.: RRR.

France: Ard.: RRR.

Lit.: La66: 431 (sub P. substygia), Mü1: 154, NL92: 159, Sé: 138.