Ramos, G. J. P., Santos, M. A. & Moura, C. W. N. (2021) Taxonomic notes on some Cosmarium species (Desmidiaceae, Zygnematophyceae) from Brazil. Phytotaxa 483 (3): 291 - 299. Author Ramos, G. J. P. Author Santos, M. A. Author Moura, C. W. N. text Phytotaxa 2021 2021-03-03 489 1 110 110 http://dx.doi.org/10.11646/phytotaxa.489.1.13 journal article 10.11646/phytotaxa.489.1.13 1179-3163 5757629 Cosmarium boeckii var. areolatum G.J.P.Ramos & C.W.N.Moura , var. nov (Figs 1, 9–12) Holotype :— Material numbered ( HUEFS 241798 !) [pro parte] deposited at Herbarium of State University of Feira de Santana, Brazil . Population partially illustrated here in LM (Figs 1–6) and SEM (Fig. 7).