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