Basionym Name:Lecidea sphaeroides f. vacillans Nyl., Lich. Scand. (Helsinki): 204 (1861)
Homotypic synonyms:Bacidia naegelii f. vacillans (Nyl.) Zahlbr., Cat. Lich. Univers. 4: 128 (1926)Bilimbia sphaeroides var. vacillans (Nyl.) H. Olivier, Bull. Acad. Intern. Géogr. Bot. 21: 204 (1911)Lecidea naegelii var. vacillans (Nyl.) Vain., in Norrlin & Nylander, Herb. Lich. Fenn. Cont.: no. 720 (1921)