Mammillaria elongata f. rufocrocea (Salm-Dyck) Schelle, Handb. Kakteenkult.: 247. 1907
Mammillaria elongata f. rufocrocea, Handb. Kakteenkult.: 247. 1907
is new combination for Mammillaria rufocrocea, Cact. Hort. Dyck., ed. 1849: 102. 1850
Mammillaria elongata f. rufocrocea, Handb. Kakteenkult.: 247. 1907
Taxon for this name