Mammillaria guillauminiana
| Kingdom |
Phylum |
Class |
Order |
Family |
| PLANTAE |
TRACHEOPHYTA |
MAGNOLIOPSIDA |
CARYOPHYLLALES |
CACTACEAE |
| Scientific Name: |
Mammillaria guillauminiana |
| Species Authority: |
Backeb. |
|
Common Name/s:
|
| Taxonomic Notes: |
Accepted as a species by Anderson (2001), Hunt (1999) and Pilbeam (1999). Lüthy (1995) and the assessors consider it to have been a synonym of M. jaliscana/M. mercadensis. The description of this plant does not differentiate it from M. jaliscana/M. mercadensis, found in the Durango area and widely elsewhere. |
Assessment Information
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| Red List Category & Criteria: |
Extinct in the Wild
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:
In March 2001, the assessors searched the eight accurately described locations over a period of five days. No plants were found. Other searchers who have spent even longer time in the area since 1997 report no such plants. The assessors consider the species to have been extirpated by the severe freeze on Mexico’s Altiplano in December 1997.
|
Geographic Range
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| Range Description: |
Plants meeting the description given for M. guillauminiana had been found plentifully by a number of well known cactus specialists at eight known locations from 31 km west-southwest of Cd. Durango to 214 km west of El Palmito in the State of Sinaloa, a range of about 100 km. This range includes what appears to be the type locality. The population is estimated to have been more than 2,000 individuals. |
| Countries: |
Regionally extinct: Mexico (Durango, Sinaloa) |
| Range Map: |
Click here to open the map viewer and explore range. |
Habitat and Ecology
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| Habitat and Ecology: |
Grew on steep volcanic rock at about 2,200 m altitude in semi-desert.
|
| Systems: |
Terrestrial |
| Major Threat(s): |
Minor collecting before the freeze.
|
Conservation Actions
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| Conservation Actions: |
Listed on CITES App. II.
|
