Rock broom lichen
- kingdom: Fungi
- phylum: Ascomycota
- class: Sordariomycetes
- order:
- family: Microcaliciaceae
- genus: Microcalicium
- species: Microcalicium arenarium
Globasnitz
Lendorf
CarinthiaEdelschrott
Köflach
Maria Lankowitz
StyriaGallneukirchen
Sankt Georgen am Walde
Zwettl an der Rodl
Upper Austria
AustriaZlaté Hory
Olomoucký
Czech Republic