Mammillaria radiosa
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Standard Cyclopedia of Horticulture |
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Mammillaria radiosa, Engelm. Ovate or cylindrical, sometimes proliferous: tubercles terete: radial spines 20-30, white, with dusky apex, very unequal; centrals 4 or 5, stouter and longer, tawny, upper ones longer, lowest shorter and horizontal: fls. 1½-2 in. in expansion; stigmas obtuse. S. Texas and N. Mex Mammillaria radiosa, Engelm. Ovate or cylindrical, sometimes proliferous: tubercles terete: radial spines 20-30, white, with dusky apex, very unequal; centrals 4 or 5, stouter and longer, tawny, upper ones longer, lowest shorter and horizontal: fls. 1½-2 in. in expansion; stigmas obtuse. S. Texas and N. Mex Var.neo-mexicana, Engelm. (M. Hirschtiana, Haage f.). Lower, more or less proliferous from the lower grooves: radial spines 20-40, white; centrals 3- 12, white below, blackish above. Var. borealis, Engelm. Ovate or subglobose: radial spines 12-20; centrals 3-6, purple-spotted. Very near M. vivipara. Var. arizonica, Engelm. Globose or ovate, large: tubercles long-cylindrical: radial spines 15-20, whitish; centrals 3-6, deep brown above: fls. large, rose-colored. N. Ariz. Var. deserti, Engelm. Low, simple, with slender nearly cylindric tubercles: radial spines 15-20; centrals 8-10, reddish tipped: fls. straw-colored, with purplish tips. Ivanpah, Calif. Var. chlorantha, Engelm. Cylindrical, sometimes as much as 9 in. high: radial spines 20-25, almost in 2 series, gray; centrals 6-9, stouter, ½ -l in. long, reddish only at tip: fls. greenish yellow. S. Utah. Var. Alversonii, Coulter. Foxtail Cactus. Robust and branching, sometimes 10 in. long, glaucous: tubercles short and broad, somewhat angled, forming more or less distinct ribs: radial spines numerous; centrals 8-14, stout, spreading, blackish half-way down: fls. pink. S. E. Calif.
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Cultivation
Propagation
Pests and diseases
Varieties
Gallery
References
- Standard Cyclopedia of Horticulture, by L. H. Bailey, MacMillan Co., 1963
External links
- w:Mammillaria radiosa. Some of the material on this page may be from Wikipedia, under the Creative Commons license.
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