Dendrographa decolorans (Turner & Borrer ex Sm.) Ertz & Tehler

A sorediate lichen, in the conditions of the Czech Republic usually sterile, characterised by greyish thallus with purple or pink tinge and initially punctiform soralia, later confluent. Further identifying characteristics are the Trentepohlia photobiont and fatty acids as the only secondary metabolites detectable by TLC.

Dendrographa decolorans usually seeks out bark of deciduous trees. In the Czech Republic, it strongly prefers oaks, especially older individuals, and places protected from direct rainfall. The species is one of the Atlantic-Mediterranean elements, very rare in central Europe. In the Czech Republic, it is a rare lichen of well-preserved lowland forests (floodplain forests, scree forests and oak forests in river valleys). The species was found more abundant only in the floodplain forest complex in the Soutok area (around the confluence of the rivers Morava and Dyje) in southern Moravia.

taxonomic classification:

Ascomycota Arthoniomycetes Arthoniales Roccellaceae Dendrographa

most frequented synonyms:Schismatomma decolorans

Red List (Malíček 2023):C2 – strongly endangered

Occurrence in the Czech Republic

All records: 23, confirmed 22. One click on a selected square displays particular record(s), including their source(s).


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Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

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