Mammillaria coahuilensis subsp. albiarmata (Boed.) D.R.Hunt, Mammillaria Postscripts 7: 3. 1998
Mammillaria coahuilensis subsp. albiarmata, Mammillaria Postscripts 7: 3. 1998
is new combination for Mammillaria albiarmata in Jahrb. Deutsch. Kakteen-Ges. 1: 67. 1935