Synomys description – Result

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Mammillaria pachycylindrica

  • First description by Backeberg, The cactus and Succulent Journal of Great Britain 21(4):82. 1959

  • Body: Solitary, cylindrical, to 35 cm high and 14 cm in diameter, dull green.
  • Roots: Fibrous.
  • Sap: With latex.
  • Now referred to: grusonii
  • Tubercule: Pyramidal, 12 mm long, 10 mm wide, firm.
  • Axil: Naked at first, later felty like.
  • Radial spine: 20 – 23, 4 – 8 mm long, reddish white with darker tip, irregular radiating, stiff bristle-like to needle-like, straight or curved, the collateral the longest.
  • Central spine: 4 – 7, sometimes 10, 4 – 8 mm long, needle – like, straight, thicker at base, greyish brown, brown to black with darker tips.
  • Flower: Bell shaped, dull pink to yellowish brown, to 20 mm long and in diameter.
  • Fruit: Club-shaped, carmine, 25 mm long and 8 mm wide.
  • Seed: Brown, club-shaped, 1,2 mm long and 0,6 mm wide. Hilum small and basal.
  • Flowering period in Cultivation (Europe): April – mai.
  • Minimum temperature: 5 – 10?C.
  • Habitat Substrate: Under brushwood, in stony and sandy soil with lots of humus.
  • Geographic Distribution: Mexico, Durango, near Cuencam?. Altitude 1600 – 1700 m.
  • Comments: Pachycylindrica has more spines, darker body, different color of flowers and more cilindrical growth than grusonii.
  • Bibliography: AfM – LBS Lieferung 09/93 Linzen

Pictures

Picture in the galery related to the keyword :

pachycylindrica


Mammillaria Grusonii/Mammillaria grusonii (syn. M. pachycylindrica ) – Photo Hugo De Cock.jpg


Maps Distribution/Mammillaria grusonii (syn. M. pachycylindrica) – distribution map.jpg