Cosmarium perforatum var. skujae Grönblad

Cosmarium perforatum var. skujae Grönblad

Cosmarium perforatum var. skujae Grönblad in Memoranda Soc. Fauna Fl. Fenn. 21: 56. 1945

is replaced synonym for Cosmarium tutum Shyndanovina in Phytotaxa 461(4): 244. 9 Oct 20201

is new name for Cosmarium perforatum var. rotundatum Skuja in Acta Horti Bot. Univ. Latv. 2/3: 164, t. IV, fig. 4, 5. 1928, nom. illeg.2,3

1. Cosmarium perforatum var. rotundatum Skuja 1928, nom. illeg. was given as the replaced synonym in Shyndanovina (2020: 244)., 2. Art. 53.1; Turland, N.J., Wiersema, J.H., Barrie, F.R., Greuter, W., Hawksworth, D.L., Herendeen, P.S., Knapp, S., Kusber, W.-H., Li, D.-Z., Marhold, K., May, T.W., McNeill, J., Monro, A.M., Prado, J., Price, M.J. & Smith, G.F. (eds.) 2018: International Code of Nomenclature for algae, fungi, and plants (Shenzhen Code), adopted by the Nineteenth International Botanical Congress, Shenzhen, China, July 2017. Regnum Vegetabile 159. – Glashütten: Koeltz Botanical Books, 3. Cosmarium perforatum var. rotundatum (‘rotundata’) Skuja 1928 is a later homonym of Cosmarium perforatum var. rotundatum (‘rotundata’) Børgesen 1899.