Echinocactus microspermus F.A.C.Weber in Bois, Dict. Hort.: 469. 1896
Echinocactus microspermus in Bois, Dict. Hort.: 469. 1896
is basionym for Parodia microsperma in Anales Soc. Ci. Argent. 96: 70. 1923
is basionym for Hickenia microsperma, Cactaceae 3: 207–208. 1922
Echinocactus microspermus in Bois, Dict. Hort.: 469. 1896