Rock foam lichen
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Lecanorales
- family: Stereocaulaceae
- genus: Stereocaulon
- species: Stereocaulon saxatile
Fredericton
New Brunswick
CanadaTerskol
Kabardino-Balkariya Republic
Russian FederationÄlta
StockholmSundsvall
VästernorrlandSurahammar
Västmanland
SwedenMeriden
ConnecticutMarquette
MichiganSandstone
MinnesotaAlpine
Brookdale
Cedar Grove
Montclair
Upper Montclair
New JerseyDover Plains
Pomona
New YorkPalmerton
Pennsylvania
United States