Mammillaria hahniana subsp. bravoae (R.T. Craig) D.R. Hunt Mammillaria hahniana subsp. bravoae (R.T. Craig) D.R. Hunt, Mammillaria Postscripts 6: 10. 1997 sec. Guzmán & al. 2003≡Mammillaria bravoae R.T. Craig, Mammillaria Handb.: 112. 1945 syn. sec. Guzmán & al. 2003