Mammillaria albicoma 


Taxonomy [top]

Kingdom Phylum Class Order Family
Plantae Tracheophyta Magnoliopsida Caryophyllales Cactaceae

Scientific Name: Mammillaria albicoma
Species Authority: Boed.
Taxonomic Source(s): Hunt, D., Taylor, N. and Charles, G. (compilers and editors). 2006. The New Cactus Lexicon. dh Books, Milborne Port, UK.
Taxonomic Notes: Recognized by Bravo (1991), Hunt (1999), Gómez-Hinostrosa and Hernández (2000), and Hernández et al. (2001) as a good species.

Assessment Information [top]

Red List Category & Criteria: Endangered B1ab(iii,v)+2ab(iii,v) ver 3.1
Year Published: 2013
Date Assessed: 2009-11-19
Assessor(s): Gómez-Hinostrosa, C., Hernández, H.M., Goettsch, B.K., Sotomayor, M. & Smith, M.
Reviewer(s): Superina, M., Goettsch, B.K. & Chanson, J.S.
Facilitator/Compiler(s): Hilton-Taylor, C.
Mammillaria albicoma is listed as Endangered under criterion B because of its restricted range (extent of occurrence ca 2,144 km², and area of occupancy less than 500 km²). It is known from seven locations, and the population is severely fragmented. The species is not abundant and it is under pressure due to illegal collection and habitat destruction, which is causing a continuing decline in the population and the number of mature individuals.
Previously published Red List assessments:
2002 Endangered (EN)

Geographic Range [top]

Range Description: This cactus grows in northern San Luis Potosí, Nuevo León and Tamaulipas, Mexico. The extent of occurrence for this species is 2,144 km², and its range is divided into two separate subpopulations with an estimated area of occupancy of less than 500 km². It is known from seven locations.
Countries occurrence:
Mexico (Nuevo León, San Luis Potosí, Tamaulipas)
Estimated area of occupancy (AOO) - km2: 499
Number of Locations: 7
Range Map: Click here to open the map viewer and explore range.

Population [top]

Population: This is not a common species, it is highly localized and usually only a few plants occur in each place. The population is severely fragmented.
Current Population Trend: Decreasing
Additional data:
Continuing decline of mature individuals: Yes
Population severely fragmented: Yes

Habitat and Ecology [top]

Habitat and Ecology: Mammillaria albicoma is usually found on limestone slopes with Agave lecheguilla-Hechtia glomerata scrub.
Systems: Terrestrial
Continuing decline in area, extent and/or quality of habitat: Yes

Use and Trade [top]

Use and Trade: The species is grown as an ornamental. Plants are also collected by locals and sold in markets at Christmas time to decorate nativity scenes.

Threats [top]

Major Threat(s): The main threats for Mammillaria albicoma are habitat destruction mostly by goat over-pasturing, illegal collection, and collection of plants to use them in decorating nativity scenes.

Conservation Actions [top]

Conservation Actions: One of the subpopulations (40% of the known localities) of this species is within a recently decreed protected area, Area Natural Protegida del Real de Guadalcázar (Hernández et al. 2001). The effective conservation of this area would ensure the survival of the species. 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).


Citation: Gómez-Hinostrosa, C., Hernández, H.M., Goettsch, B.K., Sotomayor, M. & Smith, M. 2013. Mammillaria albicoma. The IUCN Red List of Threatened Species 2013: e.T41223A2952751. . Downloaded on 30 November 2015.
Disclaimer: To make use of this information, please check the <Terms of Use>.
Feedback: If you see any errors or have any questions or suggestions on what is shown on this page, please provide us with feedback so that we can correct or extend the information provided