Cosmarium roraimense G.J.P.Ramos, C.E.M.Bicudo & C.W.N.Moura, 2022

Ramos, Geraldo José Peixoto, 2022, Nomenclatural and taxonomic notes on Brazilian desmids IV, Notulae Algarum 224, pp. 1-7 : 2

Cosmarium roraimense G.J.P.Ramos, C.E.M.Bicudo & C.W.N.Moura , nom. nov.

Replaced name: Xanthidium luetzelburgii Kurt Förster & Eckert in Förster, Revue Algologique N.S., 7: 77, pl. 6: fig. 1, pl. 9: fig. 5. 1963, nom. illeg.

Note: This taxon requires a new name as the epithet “ luetzelburgii ” is already occupied by Cosmarium luetzelburgii Kurt Förster & Eckert in Förster (1964: 395, pl. 23: fig. 2; pl. 42: fig. 17). The new epithet is coined for Roraima State, northern Brazil, from where the species was originally described.