Coryphantha retusa var. melleospina (Bravo) Bravo in Cact. Suc. Mex. 27: 17. 1982
Coryphantha retusa var. melleospina in Cact. Suc. Mex. 27: 17. 1982
is new combination for Coryphantha melleospina in Anales Inst. Biol. Univ. Nac. México 25: 526. 1954