Turbinicarpus alonsoi

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• Classification Schemes
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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	MAGNOLIOPSIDA	CARYOPHYLLALES	CACTACEAE

Scientific Name:	Turbinicarpus alonsoi
Species Authority:	Glass & S.Arias
Common Name/s: Spanish – Biznaguita
Taxonomic Notes:	Accepted as a valid species by Anderson (2001) and Hunt (1999)

Assessment Information [top]

Red List Category & Criteria:	Critically Endangered B1ab(v)+2ab(v) ver 3.1
Year Published:	2002
Annotations:	Needs updating
Assessor/s:	Fitz Maurice, W.A. & Fitz Maurice, B.
Reviewer/s:	Stuppy, W. & Taylor, N.P. (Cacti & Succulent Plant Red List Authority)
Contributor/s:
Justification: Qualifies due to its occurrence in a single area less than 10 km², where it continues to decline rapidly as a result of illegal collecting.

Geographic Range [top]

Range Description:	Since its discovery, the population has been reduced by more than 50%. It grows in a single location of less than 10 km² near Xichu. The current estimated population size is less than 5,000 individuals.
Countries:	Native: Mexico (Guanajuato)
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population Trend:

Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	Semi-desert on steep rocky calcareous slopes at about 1,900 m altitude.
Systems:	Terrestrial

Threats [top]

Major Threat(s):

These plants are threatened by illegal collecting. The habitat has become widely known to collectors.

Conservation Actions [top]

Conservation Actions:

Listed on CITES App.I, but the laws governing imports in the countries of destination need to be enforced. This species is currently propagated in Europe from illegally collected plants.

Bibliography [top]

Anderson, E.F. 2001. The Cactus Family. Timber Press, Portland. Hunt, D. 1999. CITES Cactaceae Checklist, 2nd ed. Royal Botanic Gardens, Kew and International Organization for Succulent Plant Study (IOS). IUCN. 2002. 2002 IUCN Red List of Threatened Species. www.iucnredlist.org. Downloaded on 8 October 2002.