Notocactus lenninghausii var. minor (F.Ritter) S.Theun. in Succulenta (Netherlands) 60: 142. 1981
Notocactus lenninghausii var. minor in Succulenta (Netherlands) 60: 142. 1981
is new combination for Eriocactus lenninghausii var. minor, Kakteen Südamerika 1: 156. 1979