Bald dot lichen
- kingdom: Fungi
- phylum: Ascomycota
- class: Lecanoromycetes
- order: Lecanorales
- family: Psoraceae
- genus: Protoblastenia
- species: Protoblastenia calva
Kleinzell
Lower Austria
Anif
Bad Hofgastein
Elsbethen
Leogang
Werfenweng
Salzburg
Heiterwang
Jochberg
Tyrol
Bizau
Bürserberg
Hörbranz
Innerbraz
Schröcken
Vorarlberg
Austria
Piding
Bavaria
Schönecken
Rheinland-Pfalz
Germany- United Kingdom
Vibble
Barnard Castle