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  Aztekium ritteri f. cristata CACTUSPEDIA       

 


Aztekium ritteri f. cristata
 

The cause of cresting: The cause of cresting is not fully explained;  biologists disagree as to why some cactus grow in this unusual form. Some speculate that it is a genetic mutation. Others say it is the result of lightning strike or freeze damage, but whatever the stimulus, the growth point of the stem has switched from a geometric point, to a line, which folds and undulates as the crest expands. Though these crested cactus are somewhat rare (1 to 10 in 250,000), cresting occurs naturally throughout the range of the most species.
In the ontogenesis a crest can appear any time, but development of crests on large columnar cactus species ( such as the saguaro Carnegia gigantea) in the early stages of ontogenesis is unlikely. On the other hand, small species may crest early already at the cotyledons stage
Cultivation:
It is of extreme slow growth - probably the slowest of the entire cactus family. It usually takes several years for growth to be noticeable. Prefer some shading.
Reproduction: They are usually grafted, It is also possible to root pieces of crest  from grafted plants but with little success.

Photo of conspecific taxa, varieties, forms and cultivars of Aztekium ritterii.

Family: Cactaceae (Cactus Family)

Scientific name:  Aztekium ritteri (Boed.) Boed.

Origin Garden origin (Nursery produced cultivar)

Conservation status: Listed in CITES Appendix 1


 

 

 

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

Photo gallery Aztekium



 

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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