Rinodina oxydata (A. Massal.) A. Massal.

Rinodina oxydata is very variable – it resembles various crustose lichen of the genera Buellia, Lecidella and Trapelia. It has a grey thallus and lecanorine to lecideine apothecia. The spores have a strongly and irregularly thickened cell wall (Mischoblastia type). It might be confused with R. moziana, which forms lecanorine apothecia, bigger spores and thick thallus.

The lichen occurs on diverse siliceous rocks and stones, commonly in screes of lower elevations. It is a cosmopolitan lichen, scattered all over Europe. In the Czech Republic, it is sparsely distributed from lowlands to submontane areas, it is rare in the mountains. At certain localities, e.g., in the Křivoklát region, it is very abundant.

taxonomic classification:

Ascomycota Lecanoromycetes Caliciales Physciaceae Rinodina


Red list:NT – near threatened

Occurrence in the Czech Republic

All records: 48, confirmed 44. 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