Mammillaria spinosissima var. castaneoides (Lem. ex Labour.) Borg, Cacti, ed. 1: 328. 1937
Mammillaria spinosissima var. castaneoides, Cacti, ed. 1: 328. 1937
is new combination for Mammillaria castaneoides, Monogr. Cactaceae: 37. 1853
Mammillaria spinosissima var. castaneoides, Cacti, ed. 1: 328. 1937
Taxon for this name