Basionym Name:Lecidea fuscoreagens Vain., [as 'fusco-reagens'] Meddn Soc. Fauna Flora fenn. 10: 16 (1883)
Homotypic synonyms:Arthrorhaphis fuscoreagens (Vain.) Poelt, [as 'fuscireagens'] Best. europ. Flecht. (Vaduz): 127 (1969)Bacidia fuscoreagens (Vain.) H. Olivier, Bull. Acad. Intern. Géogr. Bot. 21: 167 (1911)