Mammillaria coahuilensis var. albiarmata (Boed.) Hofmann in Repert. Pl. Succ. 40: 5. 1989
Mammillaria coahuilensis var. albiarmata in Repert. Pl. Succ. 40: 5. 1989
is new combination for Mammillaria albiarmata in Jahrb. Deutsch. Kakteen-Ges. 1: 67. 1935