Synomys description – Result

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Mammillaria gueldemanniana

  • First description by Backeberg, Beitr. Sukk. pflege 1941: 1:57

  • Body: Strongly clumping, cylindrical to columnar, somewhat sunken apex, stems grey-green, spines nearly obscuring the stem, 10 – 20 cm high and 3 – 5 cm in diameter.
  • Roots: Fibrous.
  • Sap: Without latex.
  • Now referred to: sheldonii
  • Tubercule: Cylindrical, closely set, firm, keeled ventrally, 7 – 12 mm long and 5 – 8 mm wide.
  • Axil: Mostly naked.
  • Radial spine: 12 – 22, needle like to bristle like, straight, smooth, spread out horizontally, white with brown tip.
  • Central spine: 1 – 4, mostly 1, needle like, one hooked, smooth, brown to black, 2 – 14 mm long.
  • Flower: Funnelform to broad funnelform, 18 – 25 mm long and 16 – 35 mm in diameter, carmine pink.
  • Fruit: Club-shaped, scarlet – red, 10 – 25 mm long and 4 – 7 mm wide. Ripens about one year after flowering.
  • Seed: Spherical, black, 1 mm long and 0,8 mm wide, ventral hilum. Selfsterile.
  • Flowering period in Cultivation (Europe): July-august.
  • Minimum temperature: 5 – 10?C.
  • Habitat Substrate: In green valleys, in sandy soil with a bit of humus .
  • Geographic Distribution: Mexico, Chihuahua near Batopitas; Sonora near Navajoa; Sinaloa near El ranchito. Altitude 200 – 1300 m.
  • Comments: Aside from bigger flowers for gueldemanniana, not many differences.
  • Bibliography: Mbl voor liefh. van cact., vetpl. en kamerpl., 4: 63 – 64, 1992.

Pictures

Picture in the galery related to the keyword :

gueldemanniana


Mammillaria Sheldonii/Mammillaria sheldonii (syn. M. gueldemanniana) – Photo Hugo De Cock 2.jpg


Mammillaria Sheldonii/Mammillaria sheldonii (syn. M. gueldemanniana) – Photo Hugo de Cock.jpg


Maps Distribution/Mammillaria sheldonii (syn. M. gueldemanniana) – distribution map .jpg