Lichens of Belgium, Luxembourg and northern France
Verrucaria squamulosa Brand & van den Boom |
Syn.: Involucropyrenium squamulosum (M. Brand & van den Boom) Breuss
On exposed, calcareous, natural or artificial outcrops.
Belgium: Mosan: RR.
Luxembourg: Lorr.: RRR.
France: - .
Lit.: van den Boom & Brand (2003).