Thelocactus saueri (Boed.) H.P.Kelsey & Dayton, Standard. Pl. Names, ed. 2: 78. 1942 Thelocactus saueri (Boed.) H.P.Kelsey & Dayton, Standard. Pl. Names, ed. 2: 78. 1942is new combination for Echinocactus saueri Boed. in Z. Sukkulentenk. 3(16): 362–363. 1928 ["1927-1928"]Taxon for this nameThelocactus saueri (Boed.) H.P.Kelsey & Dayton