Cyrtidula quercus (A. Massal.) Minks

An inconspicuous crust with no apparent marks of lichenization, forming small stromata with one to six perithecia. It may resemble juvenile tiny thalli of Arthonia ruana, but differs in the type of ascomata and spores. It occurs on twigs and smooth bark of oaks and hazels (Coppins & Earland-Bennett 2009). In the Czech Republic, it has so far been collected sparsely at middle and submontane elevations. It is probably an overlooked species. Most of the specimens collected in the country have well-developed stromata with perithecia, but spores have been noticed rarely.

Literature: Coppins B. J. & Earland-Bennett P. M. (2009): Cyrtidula Minks (1876). – In: Smith C. W., Aptroot A., Coppins B. J., Fletcher A., Gilbert O. L., James P. W. & Wolseley P. A. [eds], The Lichens of Great Britain and Ireland, p. 368–369, The British Lichen Society, London.

taxonomic classification:

Ascomycota Dothideomycetes incertae sedis Dothideomycetes Cyrtidula



Red List (Malíček 2023):DD – data deficient

Occurrence in the Czech Republic

All records: 9, confirmed 9. 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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