Basionym Name:Bacidia ioessa Herre, Proc. Wash. Acad. Sci. 12(2): 98 (1910)
Homotypic synonyms:Thalloidima ioen (Herre) S. Ekman & Timdal, in Kistenich, Timdal, Bendiksby & Ekman, Taxon 67(5): 896 (2018)