Validation of the centric diatom genus name<i>Cyclostephanos</i>

Abstract

The diatom genus Cyclostephanos Round is invalidly published because a legal type was not designated at the time of description. Round apparently intended for Stephanodiscus novaezeelandiae Cleve to be the type of the genus. That species is proposed here as the lectotype of the name Cyclostephanos and a lectotype is proposed for the name S. novaezeelandiae. Names of species placed in Cyclostephanos are here validated according to the rules of botanical nomenclature.