Lichens of Belgium, Luxembourg and northern France
Arthonia arthonioides (Ach.) A. L. Sm. |
Syn.: Trachylia arthonioides (Ach.) Fr., A. aspersa Leight.
Saxicolous, on natural sandstone outcrops, or corticolous, on Fagus or Quercus in forests, always in rather sheltered conditions.
Belgium: - .
Luxembourg: Lorr.: RR.
France: - .
Lit.: Di: 35-36, L3: 26.