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Mammillaria
Haw. ex A. Gray
[206]
E. Step, D. Bois, Favourite Fl., vol. 2 : t. 116, fig. B (1896-1897) [D.G.J.M. Bois] [82]
drawing: D.G.J.M. Bois [322]
Illustration contributed by:
Missouri Botanical Garden, St. Louis, U.S.A.
Mammillaria xxx - Cactaceae
E. Step, D. Bois, Favourite Fl., vol. 2 : t. 116, fig. B (1896-1897) [D.G.J.M. Bois]