Neolloydia macdowellii (Rebut ex Quehl) H.E.Moore in Baileya 19: 166. 1975 Neolloydia macdowellii (Rebut ex Quehl) H.E.Moore in Baileya 19: 166. 1975is new combination for Echinocactus macdowellii Rebut ex Quehl in Monatsschr. Kakteenk. 4: 133. 1894Taxon for this nameNeolloydia macdowellii (Rebut ex Quehl) H.E.Moore