A crustose lichen with bipolar distribution that grows mainly on hard exposed siliceous rocks and boulders in mountain areas. In the literature, the species has been sometimes considered a chemotype of L. lapicida s. l. and reported also as the nominate variety lapicida characterized by the content of stictic acid in contrast to the sympatric var. pantherina (=*L. lactea*) containing norstistic acid.
Both lichens occur in the Czech Republic mainly in border mountain areas on exposed rock outcrops and large boulders in screes. At lower elevation they are found rather rarely, in rock regions such as the volcanic area of České středohoří. According to the current data, L. lapicida s. str. seems to be less common than L. lactea. However, the problematic is insufficiently studied as both species have been seldomly collected.taxonomic classification:
All records: 54, confirmed 20. One click on a selected square displays particular record(s), including their source(s).