Species Description – Result


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Mammillaria tetrancistra

  • First description by Engelmann, Amer. J. Sci. ser. 2, 14: 337 (1852)

  • Body: Plants solitary or forming clumps. Stems cylindrical to ovoid, pale green to gray, to 25 cm (9.8 in) high, 3 – 8 cm (1.2 – 3.1 in) in diameter.
  • Roots: Tuberous.
  • Sap: Without latex.
  • Tubercule arrangement: 8 – 13
  • Tubercule: Cylindrical.
  • Axil: With bristles.
  • Radial spine: 30 – 60, intwo series, the inner hairlike and white, the outer stouter and white with dark tips, 6 – 10 mm (0.2 – 0.4 in) long.
  • Central spine: 3 – 4, needle-like, brown or black, 14 – 25 mm (0.6 – 1 in) long, straight or the lowermost one or more hooked.
  • Flower: Lavender edged with white, to 25 mm (1 in) long, 25 – 35 mm (1 – 1.4 in) in diameter.
  • Fruit: Red, to 12 mm (0.5 in) long.
  • Seed: Dome shaped, black, pitted, with distinctive corky appendages.
  • Flowering period in Cultivation (Europe):
  • Minimum temperature:
  • Habitat Substrate:
  • Geographic Distribution: California, Arizona, Nevada, Utah, USA and northern Baja California, Sonora, Mexico. Altitude 200 – 500 m.
  • Comments:
  • Bibliography: J
    ohn Pilbeam (1999) – Mammillaria The Cactus File Handbook – page 288.

    Edward F. Anderson (2001) – The Cactus Family – page 446.
  • Synonymes:
    M. phellosperma

    Phellosperma tetrancistra

Pictures

Picture in the galery related to the keyword :

tetrancistra


Mammillaria Tetrancistra/Mammillaria tetrancistra – Photo Giuseppe Ruini.jpg


Mammillaria Tetrancistra/Mammillaria tetrancistra – Photo Hugo De Cock 1.jpg


Mammillaria Tetrancistra/Mammillaria tetrancistra – Photo Hugo De Cock 2.jpg


Mammillaria Tetrancistra/Mammillaria tetrancistra – Photo Vlad Malov 1.jpg


Mammillaria Tetrancistra/Mammillaria tetrancistra – Photo Vlad Malov 2.jpg


Mammillaria Tetrancistra/Mammillaria tetrancistra – Photo Aymeric de Barmon.jpg


Mammillaria Tetrancistra/Mammillaria tetrancistra at Virgin River Gorge NW corner of AZ – Photo Vladimir Malov.jpg


Maps Distribution/Mammillaria tetrancistra – distribution map.gif