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