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Mammillaria slevinii
(Syn: Mammillaria albicans)

CACTUSPEDIA       

 


Mammillaria slevinii
An eye-catching plant, but not the easiest species to grow.
Should be carefully watered, especially in light of its small root system.
 

Description: Clustering cylindrical cactus with spines nearly obscuring the stem
Stem:  Columnar, pale green, up to 20 cm tall, 6 cm in diameter branching basally
Tubercles: Broadly conical, without latex. The axil is woolly, especially in the flowering zone and bears few bristles, white with dark brown tips.
Central spines: 4 to 8, with sometimes one hooked, white with brown tips, 8 - 10 mm long.
Radial spines: 14-21 , white, 5 - 8 mm long.
Flowers: Around the top, white to pale pink., with pinkish mid-veins, up to 20 mm in diameter.
Blooming season: June, August.
Fruits: Club-shaped, orange to red, 10 - 18 mm.
Seeds: Nearly round, black.
 

Mammillaria slevinii forms rings of  showy white to pale pink flowers with a pinkish midvein in summer.

Cultivation: It is  slow-growing, and not especially easy to grow.  Use pot with good drainage and a very porous mineral-based potting mix. Potted plants are quite wet-sensitive, especially in light of its small root system. Water sparingly during the growing season, keep very dry in winter.
 Feed with a high potassium fertilizer  in summer.
Usually it is recommended to overwinter this plant in a bright and warm greenhouse with at least 8-10 C, but it has proved to be quite frost resistant (if kept dry
, it's hardy as low as -5 C).  Strong light is required for flowering.
Some plants will offset readily, and clumps can be produced in a very few years.

Propagation: Direct  sow after last frost, or use cuttings.

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

Photo gallery MAMMILLARIA

Family: Cactaceae (Cactus Family)

Scientific name:  Mammillaria slevinii

Origin:  Mexico (Baja California Peninsula and various islands, Mexico.

Habitat:  Grows on limestone-rich substrata, altitude 10 to 200 m.

Conservation status: Listed in CITES appendix 2.

Synonyms:

  • Mammillaria albicans (Britton & Rose) Berger 1929 First description
  • Neomammillaria albicans by Briton & Rose 1923
  • Chilita slevinii,
  • Bartschella albicans
  • Mammillaria albicans fa dolorensis
  • Mammillaria albicans fa slevinii


 

 
 



 

Cactuspedia home | E-mail | Photo gallery | Dictionary | Search 

This old page has been moved! Click the link next on the right to enter the new Enciclopedia of Cacti. We hope you find this new site informative and useful.

The Encyclopedia of Cacti