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Mammillaria luethyi

CACTUSPEDIA       
 
 


Mammillaria luethyi
 

Description: M. luethyi is a very tiny plant, but by far one of the most spectacular members of its genus, distinctive when not in flower because of the 'spination' (if it can be called that!) at the tips of the tubercles, and even more magnificent in flower. It is solitary or branching in several stems, mostly beneathe the ground. Growth Habits: Solitary or clustering.
Stem: 1.5 cm in diameter (Up to 4 cm in cultivation) , flattened sub-globose, very dark-green almost black.
Tubercle:Dense, erect, slender, cylindrical. The axil is slightly bristly.
Spines: Short, minuscule, as many as 80, soft and white, not prickly, in several series, erect to radiating, forming a dense, flattened cluster 1-2 mm in diameter
Roots:
Fleshy tap root, largely exceeding the dimension of the tiny stems.
Flowers: Large, 15-25 cm wide and long, rich magenta with a white throat.
Fruits: 4 to 5 mm in diameter, sunken in the stem, globose, yellow-green to reddish-green.
Seeds: Black.

Notes: This plant had long been known from a lone photograph by Boke, published by Bravo & Sanchez Mejorada, of a cultivated plant of unknown origin. It was rediscovered in habitat in 1996 by George Hinton and Jonas Luethy, and published by Hinton in January 1996.
 


Cultivation:
  It is a tiny plant of slow growth, for this reason it is often seen grafted to enhance growth speed, as most of the available stock has so far been propagated this way. Grafted plants grow fast, branch profusely and are very floriferous. But it is relatively easy to cultivate plants on their own roots and  no special care required, at least given the same care with drainage and watering that is afforded to other species of Mammillaria with fleshy roots. Needs good drainage and regular water in summer.  It should be dried out completely for its winter rest when it will withstand temperatures down to to -4°C for short periods.
The luethyi needs full sun which will help to maintain the lustre of the spines and plants compact.  Poorer luminosity levels produce a green anaesthetic plant with open, far and wide spaced areoles.
It is prone to mealy bug and red spider mite.

Propagation:
Seeds (rarely available) or by offshoot. Older specimens may branch around the base, so they can be propagated by cuttings in spring, cuttings root relatively  well but plants on their own roots are quite slow.  Plants are sometimes grafted onto column-shaped cacti, which is a much easier way of propagation than sowing.
 


Root apparatus


A large clump


M. luethyi (Clone Hinton - Ciudad Acuņa)


 

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

Photo gallery MAMMILLARIA

Family: Cactaceae (Cactus Family)

Scientific name:  Mammillaria luethyi,
Published by G.S. Hinton in Phytologia, January 1996.

Origin:  Mexico, Northern Coahuila

Habitat: Limestone slabs in Chihuahuan Desert

Conservation status: Listed in CITES appendix 2.

 


 

 






 

Photo of conspecific taxa, varieties, forms and cultivars of Mammillaria luethyi:



 

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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