Thelocactus uncinatus (Galeotti ex Pfeiff.) W.T.Marshall in Marshall & Bock, Cactaceae: 169. 1941
Thelocactus uncinatus in Marshall & Bock, Cactaceae: 169. 1941
is new combination for Echinocactus uncinatus in Abbild. Beschr. Cact. 2: t. 18. 1848