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Mammillaria pectinifera forma cristata
(Syn: Solisia pectinata "cristata")

CACTUSPEDIA       

 


Mammillaria pectinifera forma cristata (Thin crested  form)

 

Description: The standard M. pectinifera is a well known small cactus that appears above the ground as a squat, spherical stem,  completely covered by pectinate (comb-like), flattened spines. It stay usually solitary. In cultivation the plant's stem may be  cylindrical, and it will eventually produce clustering off-shoots with age.

Spines: 20-40, pectinate (comb-like), flattened against the body, fine, numerous, white, 1.5 - 2 mm long. Lacking central spines.
Flowers: Medium-sized in a ring around the sides of the globe, white to pink with darker mid-strip, 20-30 mm long and also in diameter. Stigmas are green.  The crested plants usually do not flower, thought some flowers will be sporadically produced on the wide crested form.
Remarks: This plant has different crested form some very thin and other wide and strong.

 


 

 
   


Wide crested from.

 


Thin crested form.

 

Family: Cactaceae (Cactus Family)

Scientific Name:  Mammillaria pectinifera  forma cristata

Conservation status: Listed in CITES appendix

Origin Garden origin (Nursery produced cultivar)

Synonyms:  

  • Solisia pectinata fa cristata


Wide crested form
 

 



This plant forms very nice crests, Wide and narrow form are both very

Comment: The cause of cresting: The cause of cresting is not fully explained, biologists disagree as to why some plant grow in this unusual form. Some speculate that it is a genetic mutation. Others say it is the result of a 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 cacti are somewhat rare (1 in 50,000 or less), cresting occurs naturally and can be encountered in many other cactus species.

Cultivation: Mammillaria pectinifera cristata grow slowly and are cold intolerant, make sure that your crest are not exposed to freezing temperatures.  It need a well drained soil mix. Water regularly in summer but allow to dry fully before watering again. During the winter months they should be rather kept dry. Repotting should be done every other year or when the plant has outgrown its pot.
Sun Exposure: They like full sun, but some summer shade in the hottest hours of the day is beneficial.
Propagation:
Grafting since cutting root hardly.

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

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

Photo gallery MAMMILLARIA

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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