Bourrellyodesmus amazonensis (Kurt Förster) 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 : 1

Bourrellyodesmus amazonensis (Kurt Förster) G.J.P.Ramos, C.E.M.Bicudo & C.W.N.Moura , comb. nov. et stat. nov.

Basionym: Xanthidium tenuissimum var. amazonense Kurt Förster, Algological Studies / Archiv für Hydrobiologie, Supplement 28: 233. 1981.

Note: “ Xanthidium tenuissimum var. amazonense ” Kurt Förster (1974: 165, pl. 8: figs 15–16) was invalid as two collection localities were mentioned in the protologue (“ Poço II in nächster Nähe der Stadt Maués ” [26.1.1941] and “Rio Paracum” [14.11.1959], both in the State of Amazonas, northern Brazil), so the designation was not valid as it was not based on a single gathering (ICN Art. 40.2, Turland & al. 2018). Also, a nomenclatural type was thus not designated at this time (Art. 40.1). Förster (1981: 233) validated the name by designating Förster (1974: pl. 8: fig. 16) as the holotype (“ikonotypus”) of the validated name.