in Arup, Søchting & Frödén, Nordic J. Bot. 31: 72 (2013).

Basionym: Placodium chrysodeta Vain. ex Räsänen, xxx: 113 (1931). --- in IF: Placodium chrysodetum Vain., Meddn Soc. Fauna Flora fenn. 47: 19, 229 (1921)

Type: Finland, Regio aboensis, Finby, Kaukasalo, supra muscos in basi rupis calcariae, 18. August 1920, Vainio (TUR - 07239 - lectotype). Selected by Laundon 1974: 103).

Thallus: Descriptions can be found in Nordin (1972: 153) and Laundon (1974: 103).

Photobiont: Green alga.

Chemistry: Parietin.

Note: