Chrysothrix chlorina (Ach.) J.R. Laundon

A very conspicuous lichen with an extensive attention-attracting bright yellow thallus covering shady rocks. It occurs in a company of various Lepraria species and a similar but yellow-green Psilolechia lucida. Chrysothrix chlorina is one of the typical rain-avoiding saxicolous lichens, therefore it usually grows on overhanging or vertical siliceous and volcanic rocks. Less often it may be found also on a tree bark. It is common in sandstone rock towns or in river canyons. In Europe and in the Czech Republic, it is a widespread, locally common species.

taxonomic classification:

Ascomycota Arthoniomycetes Arthoniales Chrysotrichaceae Chrysothrix


Red list:LC – least concern

Occurrence in the Czech Republic

All records: 451, confirmed 150. One click on a selected square displays particular record(s), including their source(s).

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