Syn.: S. coralloides Pers.

Saxicolous, on siliceous or sandstone rocks, and epiphytic, usually at the base of old Quercus, in well-preserved forests.

Belgium: Mosan: RRR, Ard.: AC-AR.

Luxembourg: Ard.: RR, Lorr.: RR (†1966).

France: Ard.: RRR (1966).

Lit.: L4: 18, La66: 207-209, La68: 72, NL77: 23, NL92: 174, NL97: 55, Schl: 198 (the Echternach record is erroneous), Diederich (1985a: 25), Kuborn & Diederich (2008).