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  Mammillaria leptacantha
(Syn: Mammillaria rekoi ssp. leptacantha)
CACTUSPEDIA       

 


Mammillaria rekoi
ssp. leptacantha
This is a nice species with long  brown or yellow twisted spines, hooked at the tips.
 

Description: Slowly clustering , at about 3 or 5 years old from seed.
Stems: Globose to short
, cylindrical, green, 12-13 cm tall, 5-6 cm thick.  Sometimes with latex.
Tubercle: Conical to cylindrical. The axil has short white wool and white bristles.
Tubercle arrangement: 8-13.
Areoles:
Woolly, white.  ( )
Radial spines: About 27-30, radiating, finely bristly, needle-like, white to golden yellow, 4 - 6 mm long.
Central spines: 4-6, much stouter than the radials, yellow, amber or brown, hooked
, sometimes twisted, 15-20(-25) mm long, the lower one sometimes strongly hooked.
Flowers: Diurnal, purple
, generally with darker midribs, up to 15 mm long.  The petals flare back at the ends, rather than opening widely.
Blooming season:
Spring.
Fruits: Red.
Seeds: Brown.

Recognized subspecies, varieties and forms:

  • The subspecies 'rekoi' grows mostly with a solitary stem.  It only has 4 central spines, with the lower one  hooked, and 20 white radial spines per areole.
  • The subspecies 'aureispina' sometimes grows multiple stems.  It has 5-7 central spines ,and 20-23 yellow golden radial spines per areole.
  • The subspecies 'leptacantha' forms clumps frequently.  It has 4-6 central spines that are curved and hooked, with 27-30 radial spines per areole.

Cultivation: Requires excellent drainage provided by porous cactus soil.  We suggest repotting every 2-3 years. Prefers bright light and ample airflow.  Outside full sun or afternoon shade, inside it needs bright light, and some direct sun.  Water the soil abundantly when it is dry to the touch.  Allow soil to drain thoroughly before watering again.  Do not water much in the winter (rot prone).  Protect from frost.  But it's hardy to -5°C if kept dry.  During the beautiful season enrich the soil using a fertilizer rich in potassium and phosphorous, but poor in nitrogen, because this chemical element doesn’t help the development of succulent plants, making them too soft and full of water.  Easily clustering, it's an easy bloomer.   Most plants will offset readily, and clumps can be produced in a few years.
Propagation: Division, direct sow after last frost.
 

Photo of conspecific taxa, varieties, forms and cultivars of Mammillaria rekoi.

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

Photo gallery MAMMILLARIA

Family: Cactaceae (Cactus Family)

Scientific name:  Mammillaria leptacantha (Lau) Reppenhagen

Origin:  Oaxaca: Mitla, Mexico.

Conservation status: Listed in CITES appendix 2.

Synonyms:  

  • Mammillaria rekoi (Britton & Rose) Vaupel 1925
  • Mammillaria rekoi var. leptacantha Lau 1983
  • Mammillaria pullihamata Reppenhagen 1987
  • Mammilaria aurilongispina

 


Photo & © copyright by Süleyman Demir Turkey 

Home page: http://community.webshots.com/user/demir165

 

 



Photo & © copyright by Süleyman Demir Turkey 
Home page: http://community.webshots.com/user/demir165



 

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