Mammillaria matudae
Mammillaria matudae in Cact. Succ. J. Gr. Brit. 18: 83. 1956 sec. Hunt 20161 wfo-0001249284
- =Mammillaria matudae var. serpentiformis in Cact. Suc. Mex. 16: 42. 1971 syn. sec. Kew 20192 wfo-0001432058
- –Mammillaria matudae f. duocentralis in Cact. Suc. Mex. 16: 43. 1971, nom. inval. syn. sec. Kew 20193 wfo-0001432057