Mammillaria barlowii Regel & Klein bis, Index Seminum [St. Petersburg (Petropolitanus)] 1860: 46. 1860
Mammillaria barlowii, Index Seminum [St. Petersburg (Petropolitanus)] 1860: 46. 1860
is basionym for Cactus barlowii, Revis. Gen. Pl. 1: 260. 1891