Astrophytum myriostigma var. quadricostatum (H.Moeller) Baum in Kakteenkunde 1933: 205. 1933
Astrophytum myriostigma var. quadricostatum in Kakteenkunde 1933: 205. 1933
is new combination for Echinocactus myriostigma subsp. quadricostatus in Z. Sukkulentenk. 3: 54. 1927