2013

Gymnocalycium mostii subsp. prochazkianum (Sorma) G. Charles
Hunt, D.: NCL updates etc.: Gymnocalycium. - Cactaceae Systematics Initiatives 29: 14 (2013).
Basionym: G. prochazkianum Sorma 1999.

Gymnocalycium prochazkianum subsp. simile Repka
Repka, R. & Koutecky, P.: Gymnocalycium mostii aggregate: Taxonomy in the northern part of its distribution area including new described taxa. - Bradleya 31: 109-112 (2013).
Typus: Argentinen, Prov. Córdoba, Dept. Tulumba, Orcosuni, zwischen Büsche auf nördlichen Ausläufern des Cerro Horqueta, 0.4 km nördlich des Ortes, ca. 550 m s.m., 25. November 2012, coll. Radomír Repka no. RER 701, (CORD, holo).

Gymnocalycium prochazkianum subsp. simplex Repka
Repka, R. & Koutecky, P.: Gymnocalycium mostii aggregate: Taxonomy in the northern part of its distribution area including new described taxa. - Bradleya 31: 106-109 (2013).
Typus: Argentinien, Prov. Córdoba Province, Department Sobremonte, Chuna Huasi, felsige Flächen auf Hügeln entlang der Strasse ca 3 km südlich des Ortes, 890 m s.m.,26 November 2012, coll. Radomír Repka no. RER 707, (CORD, holo).