Mammillaria brachytrichion
First description by L?thy, Kakt. and Sukk. 38(12): 294-7 (1987)
Body: Plants solitary or clustering. Stems depressed globose to short cylindrical, dark green, 1 - 2 cm (0.4 - 0.8 cm) in hight, 1.5 - 4 cm (0.6 - 1.6 in) in diameter.
Roots:
Sap: Without latex.
Tubercule arrangement:
Tubercule: Cylindrical.
Axil: Naked.
Radial spine: 26 - 32, whitish to yellowish brown, with dark tips, needle-like, stiff, straight, 7 - 10 mm long.
Central spine: 7 - 11, fine, needle-like, reddish brown with yellowish base, to 6 mm (0.2 in) long, one sometimes hooked, others straight.
Flower: Broad funnelform, white, sometimes with pink midveins, 10 - 12 mm (0.4 - 0.5 in) long, 12 - 14 mm (0.5 - 0.6 in) in diameter.
Fruit: Small, green.
Seed: Brownish black.
Flowering period in Cultivation (Europe):
Minimum temperature:
Habitat Substrate:
Geographic Distribution: Durango, Mexico. Altitude 1.500 to 1.700 m.
Comments:
Bibliography: <br>John Pilbeam (1999) - Mammillaria The Cactus File Handbook - page 58.
<br>Edward F. Anderson (2001) - The Cactus Family - page 410.
Synonymes:
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