Mammillaria spinosissima subsp. pilcayensis (Bravo) D.R.Hunt, Mammillaria Postscripts 6: 8. 1997
Mammillaria spinosissima subsp. pilcayensis, Mammillaria Postscripts 6: 8. 1997
is new combination for Mammillaria pilcayensis in Anales Inst. Biol. Univ. Nac. México 28: 37. 1958
Mammillaria spinosissima subsp. pilcayensis, Mammillaria Postscripts 6: 8. 1997