Notocactus mammulosus var. megalanthus (H.Schloss. & Brederoo) N.Gerloff & Neduchal in Internoto 25: 110. 2004
Notocactus mammulosus var. megalanthus in Internoto 25: 110. 2004
is new combination for Notocactus megalanthus in Kakteen And. Sukk. 32: 157. 1981