Coryphantha potosiana (Jacobi) Glass & R.A.Foster, Cact. Succ. J. (Los Angeles) 43: 7. 1971.

Mammillaria potosiana ≡ Mammillaria potosiana Jacobi, Allg. Gartenzeitung (Otto & Dietrich) 24: 92. 1856. Coryphantha potosiana (Jacobi) Glass & R.A.Foster ex Rowley, Rep. Pl. Succ. 21: 8. 1972. Type: México, San Luís Potosí, 1847, Jacobi & Galeottii s.n. (not preserved). Neotype designated here: México, San Luís Potosí, Villa de Arriaga, Rincón de Silva, 2200 m, 23 Jun 1983, R. Hernández s.n. (MEXU: 363520!).