De Cladon.: 8 (1827).

Basionym: Baeomyces caespiticia Pers., Ann. Bot. (Usteri) 7: 155 (1794).

Type locality: Netherlands?, C. H. Persoon s.n. (H-ACH 1722A - lectotype). Selected by Ahti (1993: 69).

Chemistry: Fumarprotocetraric acid (Etayo & Burgaz 1997: 721).