A relatively conspicuous, mainly mountain species forming extensive grey coatings up to tens of centimetres in diameter with a scattered groups of relatively large (up to few millimetres), often composed or densely aggregated apothecia. The lichen’s usual habitats are open siliceous boulder screes and low rock outcrops. It occurs also on acidic vulcanites. Lecidea confluens prefers rather wet microhabitats in places with a long-lasting snow cover (Nimis et al. 2018). In the Czech Republic it is known mainly from the higher border mountains but in suitable conditions, it may be found even at lower elevations, such as in the Brdy and České středohoří Hills.
Literature: Nimis P. L., Hafellner J., Roux C., Clerc P., Mayrhofer H., Martellos S. & Bilovitz P. O. (2018): The lichens of the Alps – an annotated checklist. – Mycokeys 31: 1–634.
taxonomic classification:Ascomycota → Lecanoromycetes → Lecanorales → Lecideaceae → Lecidea
Red List (Liška & Palice 2010):NT – near threatened
Red List (DaLiBor 2023):C2 – strongly endangered
Occurrence in the Czech Republic
All records: 23, confirmed 13. One click on a selected square displays particular record(s), including their source(s).