title: The correct name for a subspecies of Oenothera fruticosa L. (Onagraceae).
abstract: In 1978 when Straley adopted the name Oenothera fruticosa L. subsp. glauca (Michx.) Straley for one of the two recognized subspecies of O. fruticosa it was the correct name for this taxon; however, since that time the botanical code has changed so that now an autonym is treated as having priority over the name or names of the same date and rank that established it. This change means that since 1981 O. fruticosa subsp. glauca was no longer the correct name. The appropriate combination for it is made here as O. fruticosa L. subsp. tetragona (Roth) W.L. Wagner. Original material for the basionym, O. tetragona, is no longer extant so a neotype is designated.
authors.affiliation: Department of Botany, MRC-166, National Museum of Natural History, Smithsonian Institution, P.O. Box 37012, Washington, DC 20013-7012, USA.
authors.forename: Warren L
authors.initials: WL
authors.lastname: Wagner
keywords: O. glauca; O. tetragona; Oenothera fruticosa; nomenclature