Notocactus mammulosus var. erythracanthus (H.Schloss. & Brederoo) N.Gerloff & Neduchal in Internoto 25: 109. 2004
Notocactus mammulosus var. erythracanthus in Internoto 25: 109. 2004
is new combination for Notocactus erythracanthus in Kakteen And. Sukk. 36: 189. 1985