Muellerella pygmaea

Muellerella pygmaea is a species of lichenicolous fungus in the family Verrucariaceae. It has a cosmopolitan distribution in Arctic-alpine areas and grows on the thallus and apothecia of a number of hosts.

Host species for Muellerella pygmaea include:


 * Acarospora sp.
 * Acarospora smaragdula
 * Aspicilia calcarea
 * Candelariella aurella
 * Carbonea assentiens
 * Lecanora alpigena
 * Lecanora muralis
 * Lecanora polytropa
 * Lecidea grisella
 * Lecidea lapicida
 * Lecidea obluridata
 * Tephromela atra
 * Rhizocarpon geographicum
 * Rusavskia elegans