Mammillaria anniana

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
PLANTAE	TRACHEOPHYTA	MAGNOLIOPSIDA	CARYOPHYLLALES	CACTACEAE

Scientific Name:

Mammillaria anniana

Species Authority:

Glass & R.C.Foster

Common Name/s:

Spanish

–

Biznaguita

Taxonomic Notes:

Accepted as a valid species by cactus specialists, Anderson (2001), Hunt (1999) and Pilbeam (1999).

Assessment Information [top]

Red List Category & Criteria:	Critically Endangered A4ad; B1ab(v)+2ab(v) ver 3.1
Year Published:	2002
Annotations:	Needs updating
Assessor/s:	Fitz Maurice, W.A. & Fitz Maurice, B.
Reviewer/s:	Stuppy, W. & Taylor, N.P. (Cacti & Succulent Plant Red List Authority)
Contributor/s:
Justification: Since this species was discovered by Alfred Lau in 1979, the population has diminished by an estimated 80% (Fitz Maurice 1993). Also qualifies due to its small population (< 500 plants) in a single very small area (20x100 m), where it continues to decline as a result of illegal collecting.

Geographic Range [top]

Range Description:	Occurs on Cerro Bernal where it grows on a steep volcanic rock face over about 2,000 square meters (plan view). Current estimated population is less than 500 individuals.
Countries:	Native: Mexico (Tamaulipas)
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population Trend:	Decreasing

Population Trend:

Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	Steep volcanic rock in semi-desert at about 2,400 m altitude.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Threatened by illegal collecting. The habitat is now well known to both commercial and amateur collectors and is protected only by the difficulty of access.

Major Threat(s):

Threatened by illegal collecting. The habitat is now well known to both commercial and amateur collectors and is protected only by the difficulty of access.

Conservation Actions [top]

Conservation Actions:	Need to enforce the laws in the countries of destination (listed on CITES App. II). These plants have been widely propagated worldwide for 20 years.

Conservation Actions:

Need to enforce the laws in the countries of destination (listed on CITES App. II). These plants have been widely propagated worldwide for 20 years.

Bibliography [top]

	Anderson, E.F. 2001. The Cactus Family. Timber Press, Portland. Fitz Maurice, W. A. and B. 1993. Fieldnotes--A visit to Mammillaria anniana. Cactus and Succulent Journal (US) 65: 3. Glass, C. and Foster, R. 1981. Mammillaria anniana. Cactus and Succulent Journal (US) 53: 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.

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

Fitz Maurice, W. A. and B. 1993. Fieldnotes--A visit to Mammillaria anniana. Cactus and Succulent Journal (US) 65: 3.

Glass, C. and Foster, R. 1981. Mammillaria anniana. Cactus and Succulent Journal (US) 53: 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.

Citation:	Fitz Maurice, W.A. & Fitz Maurice, B. 2002. Mammillaria anniana. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 24 May 2013.
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