Notocactus stegmannii (Backeb.) Krainz in Kakteen And. Sukk. 17: 195. 1966 Notocactus stegmannii (Backeb.) Krainz in Kakteen And. Sukk. 17: 195. 1966is new combination for Malacocarpus stegmannii Backeb., Cactaceae 3: 1623. 1959Taxon for this nameNotocactus stegmannii (Backeb.) Krainz