Ritterocactus megalanthus (H.Schloss. & Brederoo) Doweld in Sukkulenty 2(2): 22. 1999
Ritterocactus megalanthus in Sukkulenty 2(2): 22. 1999
is new combination for Notocactus megalanthus in Kakteen And. Sukk. 32: 157. 1981
Ritterocactus megalanthus in Sukkulenty 2(2): 22. 1999
Taxon for this name