Mammillaria schiedeana subsp. giselae (Mart.-Aval. & Glass) Lüthy Mammillaria schiedeana subsp. giselae (Mart.-Aval. & Glass) Lüthy in Kakteen And. Sukk. 49: 184. 1998 sec. Hunt 2016≡Mammillaria giselae Mart.-Aval. & Glass in Bradleya 15: 73. 1997 syn. sec. Guzmán & al. 2003