|Scientific Name:||Mammillaria albiflora|
|Species Authority:||(Werderm.) Backeb.|
|Taxonomic Notes:||Accepted as a valid species by cactus specialists, Anderson (2001), Hunt (1999) and Pilbeam (1999).|
|Red List Category & Criteria:||Critically Endangered B1ab(v)+2ab(v) ver 3.1|
|Assessor/s:||Fitz Maurice, W.A. & Fitz Maurice, B.|
|Reviewer/s:||Stuppy, W. & Taylor, N.P. (Cacti & Succulent Plant Red List Authority)|
Qualifies due to its small population in a single small area (5 km²), where it continues to decline as a result of illegal collecting.
|Range Description:||The population of this species has been diminished by an estimated 50% over the past 20 years. Current estimated population is 5,000 individuals growing over 5 km². Occurs to the south of Pozos.|
|Range Map:||Click here to open the map viewer and explore range.|
|Habitat and Ecology:||Grows on sloping calcareous rock in semi desert at about 2,000 m altitude.|
|Major Threat(s):||Threatened by illegal collecting. The habitat is now well known to both commercial and amateur collectors. A residential development is in progress in the area and the developers are cooperative with the idea of establishing a protected area.|
|Conservation Actions:||There is a need to enforce the laws in the countries of destination (listed on CITES App. II). Recently a portion of the site has been enclosed with a chain link fence by El Charco del Ingenio of San Miguel de Allende with the support of the British Cactus and Succulent Society. Under the circumstances, it appears this measure may well be effective. The species has long been propagated around the world.|
Anderson, E.F. 2001. The Cactus Family. Timber Press, Portland.
Backeberg, K. 1937. Mammillaria albiflora Bchbg. Blatter Kakteenforsch 2.
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.
Pilbeam, J. 1999. Mammillaria. Cirio Publishing Services, Southampton.
Werdermann, E. 1931. M. herrerae Werd und ihre Varietat albiflora Werd. Notizblatt des Botanischen Gartens und Museums zu Berlin-Dahlem. Berlin-Dahlem 277.
|Citation:||Fitz Maurice, W.A. & Fitz Maurice, B. 2002. Mammillaria albiflora. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 22 May 2013.|
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