Notocactus paulus H.Schloss. & Brederoo in Kakteen And. Sukk. 31: 116. 1980 Notocactus paulus H.Schloss. & Brederoo in Kakteen And. Sukk. 31: 116. 1980is basionym for Notocactus mammulosus var. paulus (H.Schloss. & Brederoo) N.Gerloff & Neduchal in Internoto 25: 111. 2004Taxon for this nameNotocactus paulus H.Schloss. & Brederoo