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  Mammillaria ignota
(Syn: Mammillaria albilanata ssp. oaxacana )
CACTUS ART
NURSERY

Cultivation and Mail Sale
of Cacti and Succulents.


Mammillaria ignota
 Flat white woolly stems with showy carmine flowers.
 

Description: Usually solitary, with flat, white, woolly stems.
Stem: Depressed globose to cylindrical, sunken apically, green to dull green, covered with spines and white wool, 37(-12) cm high and 47(-8) cm in diameter. With latex.
Tubercles: Tubercles are spirally arranged, short conical to conical, firm, 8 - 10 mm long and 4-5 mm in diameter. Axil with abundant white wool.
Roots:
Fibrous.
Radial spine: 13-28, needle-like, somewhat bristly, glassy white to white, smooth, straight, somewhat radiating, horizontal, 2-8 mm long.
Central spine: (1-) 4-6, mostly 4, needle-like, firmer than the radials, the lowest is the longest, 4-10 mm long, glassy white, white to yellowish with short brown tips.
Flower: Carmine-pink, cherry red to pink, 7 mm long, stigmas greenish.
Blooming season (Europe): From early March to June.
Fruit: Red, ripens 6-8 months after flowering, 10-20 mm long and 3-4 mm in diameter.
Seed: Bright brown, club - shaped, 1 mm long and 0,6 mm wide and thick.
 

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Family: Cactaceae (Cactus Family)

Scientific name:  Mammillaria ignota

First description by Reppenhagen
In: Die gattung Mammillaria nach dem heutigen stand meines wissens 1987; 126 - 128.

Origin: Mexico, Oaxacana and Puebla, Mexico. Altitude 700 to 2.400 m.

Habitat:  On limestone rocks, in humus soil between spare overgrowth.

Conservation status: Listed in CITES appendix 2.

Synonyms:  

  • Mammillaria albilanata ssp. oaxacana D.R. Hunt
  • Mammillaria albilanata
  • Mammillaria lanigera
  • Mammillaria lanigera var juxtlahuacensis
  • Mammillaria monticola
  • Mammillaria noureddineana
 



Short straight white spines tipped with brown cover the plant body.


Cultivation:
Water regularly in summer, but do not over-water (Rot prone).  Use a pot with good drainage and a very porous potting media. Keep dry in winter.  Feed with a high potassium fertilizer in summer.  It is quite frost resistant if kept dry, hardy as low as -5 C (some reports give it hardy to -12C).  Outside full sun or afternoon shade, inside it needs bright light, and some direct sun.

Propagation:  Sow directly after last frost.

 

Photo gallery: Alphabetical listing of Cactus and Succulent pictures published in this site.

Photo gallery MAMMILLARIA

Home | E-mail | Plant files | Mail Sale Catalogue | Links | Information | Search

All the information and photos in cactus art files are now available also in the new the Enciclopedia of Cacti. We hope you find this new site informative and useful.