Coryphantha maiz-tablasensis
| 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
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| 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
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| 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
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| Population Trend: |
Decreasing
|
Habitat and Ecology
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| 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 |
| 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
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| Conservation Actions: |
Listed on CITES App. II.
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