Feuerer, T. & Brackel, W. v. 2015. The terricolous lichens of Munich (Germany) — a preliminary evaluation. — Herzogia 28: 370–377.
40 species of terricolous lichens are listed for the city of Munich, 14 of these have not been seen since the 19th century and therefore are classified as ‘most likely extinct’. Five species are listed for the first time for the city. 90% of the actual flora is threatened at different levels of intensity; some of these species are only represented by a single specimen.