Mammillaria santaclarensis Cowper in Cact. Succ. J. (Los Angeles) 41: 248. 1969 Mammillaria santaclarensis Cowper in Cact. Succ. J. (Los Angeles) 41: 248. 1969is basionym for Mammillaria barbata var. santaclarensis (Cowper) Lodé in Repert. Pl. Succ. 43: 15. 1992Taxon for this nameMammillaria santaclarensis Cowper