Coryphantha maiz-tablasensis

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Taxonomy [top]

Kingdom Phylum Class Order Family
PLANTAE TRACHEOPHYTA MAGNOLIOPSIDA CARYOPHYLLALES CACTACEAE

Scientific Name: Coryphantha maiz-tablasensis
Species Authority: Fritz Schwarz ex Backeb.
Taxonomic Notes: Accepted as a valid taxon by most cactus researchers including Bravo-Hollis and Sanchez Mejorada (1991), Hunt (1999), Arredondo et al. (2001), Dicht and Luethy (2001) and Anderson (2001)

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(i,ii,iii)+2ab(i,ii,iii) ver 3.1
Year Published: 2002
Annotations:
Needs updating
Assessor/s: Sotomayor, M.M., Arredondo, A.G., Sánchez, B., Dicht, R.F. & Lüthy, A.D.
Reviewer/s: Stuppy, W. & Taylor, N.P. (Cacti & Succulent Plant Red List Authority)
Contributor/s:
Justification:
Known only from five locations some of which are potentially threatened by cultivation and large portions of the range have already been lost. The extent of occurrence is 4,000 km² and area of occupancy < 50 km². There is continuous decline due to loss of habitat. The location near Matehuala was nearly destroyed by road construction, and only a few plants are left which are likely to be removed by collectors. Generation length is 10 years.

Geographic Range [top]

Range Description:Found in the Río Verde, Villa Juárez y Cd. del Maíz Municipalities. The plants at all locations are scattered and form large groups. There are several thousand plants left.
Countries:
Native:
Mexico (San Luis Potosí)
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population Trend: Decreasing

Habitat and Ecology [top]

Habitat and Ecology: The main site is in the dry lagoon of Las Tablas in gypsum soil with grass. The habitat is locally classified as: eastern subpopulation - Zacatal (Grassland); central subpopulation - Matorral Desértico Micrófilo with Yuccas (Rzedowski 1978).
Systems: Terrestrial

Threats [top]

Major Threat(s): There is constant loss of plants due to agricultural cultivation. Road construction decimated one of the locations. Illegal collection is an ongoing problem.

Conservation Actions [top]

Conservation Actions: Listed on CITES App. II.

Bibliography [top]

Anderson, E.F. 2001. The Cactus Family. Timber Press, Portland.

Arredondo G., Sotomayor M., Sánchez B. and Martínez M. 2001. Cactáceas Amenazadas de Extinción del Estado de San Luis Potosí, México. CD ROM. Edit.: INIFAP-CIRNE. Publ. Esp. F-015, San Luis Potosí, México.

Bravo, H. and Sánchez-Mejorada, H. 1991. Las Cactáceas de México. Vol. 2. Universidad Nacional Autónoma de México, D.F.

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.

Rzedowski, J. 1978. Vegetación de México. Editorial Limusa,. México, D.F.
Citation: Sotomayor, M.M., Arredondo, A.G., Sánchez, B., Dicht, R.F. & Lüthy, A.D. 2002. Coryphantha maiz-tablasensis. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 25 May 2013.
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