A relatively inconspicuous, easily overlooked, saxicolous crustose species with characteristic morphology and ecology. It may resemble certain brown Rhizocarpon species. The lichen is mostly sterile, with glossy brown areoles scattered on a conspicuous sooty-black prothallus and forms characteristic vegetative diaspores, thalloconidia, well visible under a microscope. It is a typical species on shaded and sheltered siliceous rocks (especially mica-schist and phyllite) rich in iron minerals. It usually grows on rock overhangs, commonly together with the yellow Pleopsidium chlorophanum (Wirth et al. 2013). Protoparmelia nephaea has been known in the Czech Republic only lately (Palice et al. 2008) and has been found at three localities so far; the Krkonoše Mts (Čertova zahrádka), the Jeseníky Mts (Velká kotlina) and the Šumava Mts (Bílá strž).
Literature: Palice Z., Steinová J. & Malíček J. (2008): Tři nové korovité (vegetativně se množící) lišejníky pro ČR z hornin bohatých na železo a měď. – Bryonora 42: 12–16. Wirth V., Hauck M. & Schultz M. (2013): Die Flechten Deutschlands. Band 1, 2. – Stuttgart: Ulmer.taxonomic classification:
All records: 6, confirmed 4. One click on a selected square displays particular record(s), including their source(s).