Cresponea premnea (Ach.) Egea & Torrente

Cresponea premnea is a very rare species in central Europe growing on silicates (e.g., on sandstone), sometimes even calcareous. It prefers shady vertical to overhanging rock surfaces protected from rain. It also grows in screes and on walls from lowlands to sub-montane areas. In areas with oceanic climate, the lichen also grows on bark of old trees, also at places protected from rain. In Europe, it occurs in oceanic areas from the temperate zone to the Mediterranean.

From similar species, C. premnea is distinguished by a thin thallus, non-pruinose (but sometimes slightly greenish pruinose) apothecia, 3– to 5-septate spores and the absence of secondary metabolites. In the Czech Republic, a single historical locality is known; a sandstone rock in an abandoned quarry near Škrovád (Kuťák 1927), where it was abundantly collected and even published in various exsiccates (see, e.g., Egea & Torrente 1993). It was also reported by Mann (1825) but without locality specification and it is questionable whether the record actually refers to this taxon. It is currently considered extinct in the Czech Republic.

Literature: Egea J. M. & Torrente P. (1993): Cresponea, a new genus of lichenized fungi in the order Arthoniales (Ascomycotina). – Mycotaxon 48: 301–331. Kuťák V. (1927): Třetí příspěvek ku květeně českých lišejníků. – Preslia 5: 36–51. Mann W. (1825): Lichenum in Bohemia observatorum dispositio succinctaque descriptio. – Pragae, 108 p.

taxonomic classification:

Ascomycota Arthoniomycetes Arthoniales Opegraphaceae Cresponea

Red List (Liška & Palice 2010):RE – extinct
Red List (Malíček 2023):A – no recent data

Occurrence in the Czech Republic

All records: 0, confirmed 0. 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