homotypic synonyms:
Bartschella tetrancistra species (Engelm.) Doweld; Neomammillaria tetrancistra species (Engelm.) Fosberg;
protologue: Amer. J. Sci. Arts, ser. 2 14: 337 (1852)
6 639797 Mammillaria tetrancistra Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 7 () [P. Roetter]
Bartschella tetrancistra species (Engelm.) Doweld; Neomammillaria tetrancistra species (Engelm.) Fosberg;
protologue: Amer. J. Sci. Arts, ser. 2 14: 337 (1852)
6 639797 Mammillaria tetrancistra Engelm.Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 7 () [P. Roetter]