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  Lophophora jourdaniana CACTUS ART
NURSERY

Cultivation and Mail Sale
of Cacti and Succulents.


Old plant forms dense cluster . Note the presence of small and long persisting spines on young areoles.
Lophophora jourdaniana differs from the other lophophora species described until now by rose-violet perianth, pistil, filaments.
 

The thigmotropic stamens (i.e. stamens that when touched fold in around the style) are another peculiarity of this odd plant.


Cultivation:
Slow growing.
Because of the tap root they are very rot prone, so use highly gritty compost with much drainage. Requires half shade to part sun. Watering: waterings should be rather infrequent  to keep the plant compact and not to become excessively elongated and unnatural in appearance, watering it properly is often difficult because this plant tends to crack open or rot if over-watered. The fact that the plant retracts into the soil and assume a grey-green colouring between watering, is perfectly natural and doesn’t cause any damage.
Overwintering:
Keep completely dry and cool in winter (An unheated greenhouse would be perfect) or when night temperatures remain below 10° C,  it can survive low temperatures (appr. -7°C)  for a short period. Assure a good ventilation.
Propagation:
Easy to propagate from cuttings or grafting.
 

The open flower clearly contradicts Habermann’s claim of cleistogamic flowers . Apparently Habermann misunderstood or used this term incorrectly as the photo accompanying the type description also shows a plant with an open flower.

 

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

Photo gallery Lophophora


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Family: Cactaceae (Cactus Family)

Scientific name:  Lophophora jourdaniana Habermann sp. n. 1975

Origin Unknown  (Perhaps it is a nursery produced cultivar)
Some people suppose L. jourdaniana may perhaps be an hybrid between L. williamsii and L. fricii.
Furthermore L. jourdaniana is  called L. williamsii var. jourdaniana by some other people. These same people labels L. fricii as L. williamsii var. fricii. This is incorrect because L. fricii is not a variation of  L. williamsii, and also the breading of the two different species seems impossible, in fact the flowers are frequently cleistogame. It is not possible to fertilize L. jourdaniana with the pollen of L. williamsii,  nor with the pollen of L. diffusa and L. fricii. Some websites say this species contain some mescaline, but at a much lower content than williamsii, some other say it don't contain the alkaloid at all, because this plant is more related to diffusa than williamsii.

Conservation status: Listed in CITES appendix 2.

Description:  Clumping flattened cactus. Slowly forms small clumps up to 15cm in diameter.
Stem: Glaucous green (but more darker green than L. williamsii) are up to 4 cm tall, 5 cm in diameter, with a woolly top.
Ribs: 5 to 9 (or more).
Areoles: With some bunches of greyish hairs, up to 1cm long.
Spines: Small short, thin and long persisting on young areoles.
Flower:
2.5-3,5 cm in diameter that emerge from the mass of hairs in the center of the plant.  Perianth, pistil, and filaments rose-violet; The stamens are thigmotropic.


 

 

 


The open flower clearly contradicts Habermann’s claim of cleistogamic flowers . Apparently Habermann misunderstood or used this term incorrectly as the photo accompanying the type description also shows a plant with an open flower.
 

 

Photo of conspecific taxa, varieties, forms and cultivars of plants belonging to the Lophophora williamsii  complex (This Taxon has  several controversial varieties and subspecies and comprises a multitude of different forms, but where each form is linked to others by populations of plants with intermediate characteristics):

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

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