Placynthium garovaglii (A. Massal.) Zahlbr.

A pruinose Mediterranean Placynthium species with well-developed marginal lobes and usually 3-septate spores in black apothecia. In the past, the name used to be erroneously applied to certain populations of P. caesium in Scandinavia but also elsewhere (Jørgensen 2005). However, it is distinguished by a crustose thallus with no marginal lobes. In the Czech Republic, P. garovaglii is only known from the Český kras (the Bohemian karst), where it was found only recently (Svoboda 2007). The only record in the Czech catalogue refers to the suspicious name Lepraria caesia whose type specimen does not contain a lichen but inorganic calcareous incrustations (Jørgensen 2005). Similar to other cyanolichens, P. garovaglii grows on calcareous rocks at places with frequent or lasting water seepage.

Literature: Jørgensen P.M. (2005): Placynthium garovaglioi not present in Scandinavia. – Graphis Scripta 17: 3–5. Svoboda D. (2007): Lichens of the central part of the Bohemian Karst. – Novitates Botanicae Universitatis Carolinae 18: 15–52.

taxonomic classification:

Ascomycota Lecanoromycetes Peltigerales Placynthiaceae Placynthium

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

Occurrence in the Czech Republic

All records: 5, confirmed 4. 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

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