Biology:Strombocactus

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Short description: Genus of cacti

Strombocactus
Strombocactus esperanzae.jpg
Strombocactus disciformis subsp. esperanzae
CITES Appendix I (CITES)[1]
Scientific classification edit
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Tribe: Cacteae
Genus: Strombocactus
Britton & Rose
Species:
S. disciformis
Binomial name
Strombocactus disciformis
(DC.) Britton & Rose
Synonyms

Ariocarpus disciformis (DC.) Marshall
Ariocarpus disciformis ssp. jarmilae (Halda) Halda
Cactus disciformis Kuntze
Echinocactus disciformis (DC.) K.Schum.
Echinocactus turbiniformis Pfeiff.
Mammillaria disciformis DC.
Pediocactus jarmilae ?
Strombocactus disciformis ssp. jarmilae (Halda) Halda
Strombocactus jarmilae Halda

Strombocactus disciformis is a rare species of cacti and the only species of the genus Strombocactus. The plant originates from Central and Northeast Mexico.

Description

Strombocactus is a monotypic genus with a strong turnip-like root, a small, depressed, roughly spherical stem covered with spirally arranged overlapping tubercles, each with a spine-bearing areole at its tip. Flowers come from new growth at the crown, and the cactus's small seeds are difficult to see with the naked eye.[2]

Taxonomy

The species has several forms and subspecies:

  • Strombocactus disciformis f. cristata
  • Strombocactus disciformis subsp. esperanzae

Conservation status

Both subspecies are classified as Vulnerable on the IUCN Red List, which states that it has a limited range and "is experiencing a decline in mature individuals due to illegal overcollection". The species is listed in Appendix 1 of the Convention on International Trade in Endangered Species meaning commercial international trade is prohibited and non-commercial international trade is regulated.[1]

References

  1. 1.0 1.1 "Appendices | CITES". https://cites.org/eng/app/appendices.php. 
  2. Venning, Frank D.. Cacti (A Golden Guide). Racine, Wisconsin: Western Publishing Company, Inc.. p. 155. 


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