Lichenicolous, on corticolous Pertusaria albescens on Acer (in Belgium), and on saxicolous Diploschistes scruposus (in Luxembourg).

Belgium: Ard.: RRR (1957).

Luxembourg: Ard.: RR.

France: - .

Lit.: L1: 7-8, LF0: 17, d'Ansembourg & Lambinon (1958: 23, sub S. turbinata), Kuborn & Diederich (2008).