Mammillaria crispiseta R.T. Craig 1945
Mammillaria casoi Bravo 1954
Mammillaria huajuapensis Bravo 1954
Mammillaria mixtecensis Bravo 1954
Mammillaria atroflorens Backeberg 1962, not validly published
Plants solitary. Stems globose to cylindrical, dark gray-green, to 15 cm (5.9 in) high, 7-10 cm (2.8-3.9 in) in diameter. Tubercles firm, pyramidal, four- to six-angled, keeled, with latex, axils with bristles. Central spines 3-4, sometimes one, variable in number and color, stout, twisted, interwoven,
purplish with dark brown tips, one or more centrally placed and to 70 mm (2.8 in) long, others 20-70 mm (0.8-2.8 in) long. Radial spines 3-10, spreading, white, 4-8 mm (to 0.3 in) long. Flowers rose purple with brownish midveins, to 25 mm (1 in) long and in diameter. Fruits club shaped, red, 20-25 mm (0.8-1 in) long. Seeds brown. Distribution: widespread in central Mexico, centering in Puebla and adjacent states.
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