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  Mammillaria humboldtii CACTUS ART
NURSERY

Cultivation and Mail Sale
of Cacti and Succulents.


Mammillaria
humboldtii.
This is one of the most beautiful species, with candid white spines and lots of bright purplish-pink
flowers blooming abundantly in spring,
 

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Mammillara humboldtii is a sperical, white, offsetting species with a snowball appearance.
Except for the color of the flowers, this plant looks like Mammilloydia candida.

Cultivation: It is a  relatively rapidly growing  species .  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.  Outside full sun or afternoon shade, inside it needs bright light, and some direct sun.
Easily clustering and easily flowered.  Most plants will offset readily, and clumps can be produced in a few years.

 

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

Photo gallery MAMMILLARIA


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Family: Cactaceae (Cactus Family)

Scientific name:  Mammillaria humboldtii (often mispelled M. humboldti) First description by Ehrenberg, Linnaea 14: 378 (1840)

Origin:  Hidalgo, Mexico. Altitude 1.350 - 1.500 m

Conservation status: Listed in CITES appendix 2.

Common Names include:

Synonyms:  

  • Ebnerella humboldtii
  • Escobariopsis humboldtii
  • Mammillaria candida
  • Chilita humboldtii
  • Cactus humboldtiia
Description: Solitary or clumping (mat forming).
Stems: Depressed globose to globose, light green, up to 7 cm in height and in diameter, without latex.
Tubercles: Cylindrical, rounded above with wool and white bristles in the axils.
Radial spines: Up to 80 or more, unequal, small, tightly fitting, low lying, pure white, 4 - 6 mm long.
Central spine: None.
Flower: Bright pink-purple, up to 25 mm long and 15 mm in diameter.
Fruit: Club shaped, red.
Seed: Black.
Blooming season (Europe): April, May.

Note: Mammillari candida is not to be considered a valid synonym. The differences between this species and Mammilloydia candida are substantial. There is an indication of the International Cactaceae Systematics Group (ICSG) to consider the Mammilloydia as a separate and distinct genus in the year 2001.  The difference is in the seeds, that are not pitted and lack perisperm. The Mammilloydia genus is believed to be the result of a convergent evolution between the Mammillaria and Neolloydia genera.

Also, in 2001 the ICSG decided that Mammillaria humboldtii is a separate and different species than Mammilloydia candida:   It is no longer a synonym as of 2001.
 

 


Propagation: Division, direct sow after last frost.

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.