Mammillaria surculosa Boed. Mammillaria surculosa Boed. in Monatsschr. Deutsch. Kakteen-Ges. 3: 78. 1931 sec. Hunt 2016=Dolichothele surculosa (Boed.) Backeb. ex Buxb. in Cact. Succ. J. (Los Angeles) 23: 152. 1951 syn. sec. Guzmán & al. 2003