Astrophytum myriostigma var. quadricostatum (H.Moeller) Borg, Cacti, ed. 1: 251. 1937
Astrophytum myriostigma var. quadricostatum, Cacti, ed. 1: 251. 1937
is new combination for Echinocactus myriostigma subsp. quadricostatus in Z. Sukkulentenk. 3: 54. 1927