Neolloydia knuthiana (Boed.) F.M.Knuth, Kaktus-ABC: 367. 1936 ["1935"] Neolloydia knuthiana (Boed.) F.M.Knuth, Kaktus-ABC: 367. 1936 ["1935"]is new combination for Echinocactus knuthianus Boed. in Monatsschr. Deutsch. Kakteen-Ges. 2: 139. 1930Taxon for this nameNeolloydia knuthiana (Boed.) F.M.Knuth