Basionym Name:Thelidium dufourii var. lilacinofuscum Servít, Stud. Bot. Čechoslov. 11: 131 (1950)
Homotypic synonyms:Involucrothele dufourii var. lilacinofusca (Servít) Grummann, Cat. Lich. Germ. (Stuttgart): 15 (1963)