Abh. Naturwiss. Vereine Bremen 25: 165 (1922).

Type locality: Germany, Baden-Württemberg, Wertheim, Kahlberg, 1921, A. Kneucker in Sandstede: Cladon. Exs. 784 (H - lectotype; FH, TUR-V 15741, UPS - isolectotype). Lectotypification in Ahti (1993: 97).