Physcia dimidiata (Arnold) Nyl.

Primarily a saxicolous lichen characterized by tiny crystals on the lobe surface. Most commonly it occurs on calcareous silicates but there are records from many other rock types, such as acidic silicates or carbonated substrates. It prefers vertical, sun-exposed to half-shaded natural rocks but is also known from anthropogenic substrates and trees. In Europe, the species is widely distributed but only scattered. In the Czech Republic, it grows from lower to middle elevations, typically in river valleys.

taxonomic classification:

Ascomycota Lecanoromycetes Caliciales Physciaceae Physcia

Red List (Liška & Palice 2010):NT – near threatened
Red List (Malíček 2023):C3 – endangered

Occurrence in the Czech Republic

All records: 79, confirmed 63. One click on a selected square displays particular record(s), including their source(s).


record after the selected year
record before the selected year
records without date
Doubtful and erroneous records are not displayed.
credible record
doubtful record
erroneous record
record without revision

Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

© Botanický ústav AV ČR, v. v. i. 2020–2024