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Astrophytum myriostigma cv. Tao (var. bicostatum)

 

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A two ribbed myriostigma! a very rare event. (1,5 years old 2,5 cm top view )
 

Photo of conspecific taxa, varieties, forms and cultivars of Astrophytum myriostigma:

Family: Cactaceae (Cactus Family)

Scientific name:  Astrophytum myriostigma Lemaire
Published in:
Cactacearum Genera nova Speciesque novae et omnium in Horto Monvillano cultarum: 4-6 1839
cv. TAO (forma bicostata) (Original description)

Origin Japan, Garden origin (Nursery produced cultivar)

Conservation status: Listed in CITES appendix 2.

Etymology:  The variety name bicostatum derives from the Latin prefix “bi” which means “bis, twice, two”  and the Latin adjectives “costatus” meaning “ribbed” ( From the Latin word “costa” a rib) ”  ( The specific name implies: "two ribbed")
 The cultivars name has been chosen referring to the Tao symbol ( the image of yang and yin) for its resemblance to the form of this peculiar plant.


The same plant (side wiew of the 2 ribs)

 

 

 

Description: The birth of a two ribbed A. myriostigma is really a rare and memorable event.
Till now only a very few plants has born with this uncommon feature. They are indeed quite unstable and rarely maintain the rare characteristic for many years. Some of this  "bicostatum" comes from relatively common "tricostatum" seeds.
 

 

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