Mammillaria guillauminiana

Mammillaria guillauminiana
	Mammillaria guillauminiana
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cacteae
Genre :	Mammillaria
Type :	Mammillaria guillauminiana
Scientific name
	Mammillaria guillauminiana
	Backeb.

Mammillaria guillauminiana is a species of the genus Mammillaria in the cactus family(Cactaceae). The specific epithet honors the French botanist André Guillaumin (1885–1974).

description

Mammillaria guillauminiana grows individually or in groups and forms a taproot . The spherical light green shoots reach heights of growth of up to 5.5 centimeters and the same diameter. Their warts are conical, the axillae bare. The 4 to 5 brown, up to 6 millimeters long central spines are darker at the tip. The lower central spine is hooked. The 30 to 32 bristle-like white radial spines are 6 to 7 millimeters long.

The white flowers have a pink central stripe, are 8 to 10 millimeters long and reach the same diameter. The red fruits contain black seeds .

Distribution, systematics and endangerment

Mammillaria guillauminiana is common in the Mexican states of Durango and Sinaloa .

It was first described in 1952 by Curt Backeberg . The following variety has been described as a synonym : Mammillaria mercandensis var. Guillauminiana (Backeb.) Repp. (1987).

Mammillaria guillauminiana was in the Red List of Threatened Species of IUCN in 2002 as " Extinct in the Wild (EW) , d". H. classified as extinct in nature. In 2003, however, the species was found in nature by Betty and W. A. Fitz-Maurice. After that, the population was not examined again, so that the species was classified as “ Data Deficient (DD) ” in 2013 . H. is managed with insufficient data.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 384 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 100.
↑ Cactus. Organe de l'Association Francaise de Cactus et Plantes Grasses . Number 33, Paris 1952, Supplement pp. 9-10.
↑ Mammillaria guillauminiana in the IUCN Red List of Threatened Species 2013.2. Listed by: Fitz Maurice, B & Fitz Maurice, WA, 2013. Retrieved December 26, 2013.

Web links

Commons : Mammillaria guillauminiana - collection of images, videos and audio files

Plant photos and distribution at Mammillarias.net

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 100.

[2] Cactus. Organe de l'Association Francaise de Cactus et Plantes Grasses . Number 33, Paris 1952, Supplement pp. 9-10.

[3] Mammillaria guillauminiana in the IUCN Red List of Threatened Species 2013.2. Listed by: Fitz Maurice, B & Fitz Maurice, WA, 2013. Retrieved December 26, 2013.