Xanthoria sorediata (Vain.) Poelt ex Vězda

Yellow foliose Xanthoria with characteristic isidiate/blas­tidiate (granulose) thallus surface. Strictly saxicolous, on basic rocks. Although generally common, it is very rare in the Czech Republic. Nowadays known from calcareous phyllites at Mt Petrovy kameny in the Hrubý Jeseník Mts and conglomerate rocks near Moravský Krumlov. In both localities already recorded by Suza in 1928 and 1929. Another historical record, from conglomerates in the valley of the Svratka river near Veverská Bitýška, wasn’t verified. Newly found in the Křivoklát region (Týřovické skály) and in Český kras (the Bohemian karst).

Literature: Suza J. (1928): Zajímavé nálezy lišejníků v Československu. – Časopis Moravského zemského musea 25: 283–287. Suza J. (1929): Srovnávací poznámky k zeměpisnému rozšíření lišejníků na Sudetách, zvláště východních. I. – Sborník Klubu přírodovědeckého Brno 11: 128−155. Vondrák J. & Malíček J. (2015): Teloschistaceae Velké kotliny a Petrových kamenů v Hrubém Jeseníku. – Bryonora 56: 45–55.

taxonomic classification:

Ascomycota Lecanoromycetes Teloschistales Teloschistaceae Xanthoria



Red List (Liška & Palice 2010):EN – endangered
Red List (Malíček 2023):C1 – critically endangered

Occurrence in the Czech Republic

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Altitude preferences

Distribution Timeline

Substrate type

Substrate preferences

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