Overview

Distribution

Range Description

Species endemic to the Mexican state of Nuevo León at elevations of 1,200 m. Has a very limited range with the extent of occurrence and area of occupancy being about the same - 25 km².
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Localities documented in Tropicos sources

Geohintonia mexicana Glass & Fitz Maurice:
Mexico (Mesoamerica)

Note: This information is based on publications available through Tropicos and may not represent the entire distribution. Tropicos does not categorize distributions as native or non-native.
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This an endemic species for the state of Nuevo León, in northern Mexico. It is restricted to gypsum soils.

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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
The species grows on gypsum cliffs and hillsides, it is a soil specialist - a gypsophile (Anderson 2001, Hernández and Gómez-Hinostrosa 2011).

Systems
  • Terrestrial
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Geohintonia mexicana

The following is a representative barcode sequence, the centroid of all available sequences for this species.


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Statistics of barcoding coverage: Geohintonia mexicana

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Specimens with Barcodes: 7
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
NT
Near Threatened

Red List Criteria

Version
3.1

Year Assessed
2013

Assessor/s
Fitz Maurice, B, Fitz Maurice, W.A., Hernández, H.M., Sotomayor, M. & Smith, M.

Reviewer/s
Schipper, J.

Contributor/s

Justification
This species has an extremely small range (extent of occurrence and area of occupancy is about 25 km²). The area is essentially a single location and there is ongoing illegal collection of the species. However, the population is extremely large and the collecting does not seem to be causing population declines at a rate sufficient to qualify for a threat category. Hence the species is listed as Near Threatened because it almost qualifies for a Critically Endangered listing under criterion B1ab(v).
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Population

Population
The estimates in population size vary considerably, with 100,000 being an agreed lower limit and perhaps over one million the upper limit. Despite illegal collection, the population is stable and not decreasing.

Population Trend
Stable
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Threats

Major Threats
Illegal collection is the main threat, however, now it is protected by the local population (Pilbeam and Weightman 2006). The local population are safeguarding the species in order to sell it themselves.
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Management

Conservation Actions

Conservation Actions

This species is legally protected in Mexico by the national list of species at risk of extinction, NOM-059-SEMARNAT-2010, where it is listed under category “subject to special protection” (Pr; SEMARNAT 2010).

The local population guard the plants and prevent illegal collection (Pilbeam and Weightman 2006), but the area has no protected area status.

It is recommended to consider uplisting to CITES Appendix I, increase commercial propagation, protect wild populations and monitor commercial availability in foreign countries (Bárcenas 2003).

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Wikipedia

Geohintonia

Geohintonia mexicana (discovered in 1992) is a species of cacti, the only species in the genus Geohintonia. This genus is named after its discoverer George S. Hinton. As its specific epithet suggests, the plant is found in Mexico (Nuevo León), where it grows on gypsum hills near Galeana.[1]

The species has one form: Geohintonia mexicana f. cristata.[citation needed]

References

  1. ^ a b c Anderson, Edward F. (2001), The Cactus Family, Pentland, Oregon: Timber Press, ISBN 978-0-88192-498-5, p. 342
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