Mammillaria acicularis Lem., Cact. Gen. Sp. Nov.: 34. 1839 Mammillaria acicularis Lem., Cact. Gen. Sp. Nov.: 34. 1839is basionym for Cactus acicularis (Lem.) Kuntze, Revis. Gen. Pl. 1: 260. 1891Taxon for this nameMammillaria acicularis Lem.