Rhizocarpon carpaticum thalli are 1–6 cm in diameter. The prothallus is black and usually well-developed. The areoles are pale yellow to vivid yellow, rounded to slightly angular and convex. The apothecia are very characteristic; they are rounded and in older thalli noticeably rising above the areoles.
The species grows on acidic siliceous rocks, often at places that are at least partly protected from the rain, such as vertical surfaces of boulders or rock overhangs. It usually occurs in montane areas rich in rainfall. According to Wirth et al. (2013), it often grows at otherwise lichen-poor places. In the Czech Republic, it has only been found SW-facing rocks below the top of the Sněžka Mt.
Literature: Bouda F. (2017): Nové druhy žluté skupiny rodu Rhizocarpon v České republice. – Bryonora 59: 24–29. Wirth V., Hauck M. & Schultz M. (2013): Die Flechten Deutschlands. – Ulmer, Stuttgart.taxonomic classification:
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