Acarospora glaucocarpa (Ach.) Körb.

Acarospora glaucocarpa is a calciphyte, in the Czech Republic rare on calcareous rock, even concrete, at a variety of elevations in full sun or partial shade. Especially on dry vertical south-facing rock walls or on concrete in full sun, A. glaucocarpa can appear as solitary and dispersed apothecia up to 3 mm wide. When fully developed A. glaucocarpa has a squamulose thallus with scattered apothecia. Squamulose specimens are sometimes confused with A. cervina which can be sympatric, but they are separate species supported by molecular analyses and morphological analysis (see A. cervina). Two varieties of A. glaucocarpa occur in the Czech Republic and need further study.

Literature: Knudsen K., Adams J.N., Kocourková J., Wang Y., Ortañez J. & Stajich J.E. (2020): The monophyletic Sarcogyne canadensis–wheeleri clade, a newly recognized group sister to the European Acarospora glaucocarpa group. – Bryologist 123: 11–30.

taxonomic classification:

Ascomycota Lecanoromycetes Acarosporales Acarosporaceae Acarospora


Red list:NT – near threatened

Occurrence in the Czech Republic

All records: 19, confirmed 11. One click on a selected square displays particular record(s), including their source(s).

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© Botanický ústav AV ČR, v. v. i. 2020–2023