Mammillaria karwinskiana subsp. collinsii (Britton & Rose) D.R.Hunt, Mammillaria Postscripts 6: 11. 1997
Mammillaria karwinskiana subsp. collinsii, Mammillaria Postscripts 6: 11. 1997
is new combination for Neomammillaria collinsii, Cactaceae 4: 101, f. 101, 103. 1923
Mammillaria karwinskiana subsp. collinsii, Mammillaria Postscripts 6: 11. 1997