Mammillaria marcosii

Mammillaria marcosii
	Mammillaria marcosii
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cacteae
Genre :	Mammillaria
Type :	Mammillaria marcosii
Scientific name
	Mammillaria marcosii
	WAFitz Maur. , B.Fitz Maur. & Glass

Mammillaria marcosii is a species of the genus Mammillaria in the cactus family(Cactaceae). The specific epithet honors the Mexican cactus breeder Marcos Sierra Pichardo from the city of San Miguel de Allende , who discovered the species.

description

Mammillaria marcosii forms irregular groups and grows with spherical to short cylindrical shoots that reach a diameter of up to 5 centimeters. The cylindrical warts with rounded tips are soft fleshed. They do not contain milk juice . The axillae are covered with wool and 15 wrinkled bristles up to 1.5 centimeters long. The 7 to 14 needle-like central spines are white to yellowish to reddish brown to brown and 1 to 2 centimeters long. One of them is descending and hooked differently. The 16 to 25 straight, white radial spines are radiating and 4 to 12 millimeters long.

The yellowish white flowers are slightly tinged with pink. They are up to 1.5 centimeters long and reach 1 centimeter in diameter. The obovate to cylindrical, red fruits are 6 to 13 millimeters long and do not protrude from the thorns. They contain brownish black seeds .

Distribution, systematics and endangerment

Mammillaria marcosii is common in the Mexican state of Guanajuato . The first description was in 1997 by the couple Fitz Maurice and Charles Edward Glass .

Mammillaria marcosii is in the endangered Red List species the IUCN as " Critically Endangered (CR) ", d. H. critically endangered, classified.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 394 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Birkhäuser 2004, ISBN 3-540-00489-0 , p. 147.
^ A new species of Mammillaria (M. marcosii), Series Stylothelae, from northwestern Guanajuato, Mexico . In: Cactus and Succulent Journal . Volume 69. Number 1, Los Angeles 1997, pp. 10-14.
↑ Mammillaria marcosii in the endangered Red List species the IUCN 2010. Posted by Fitz Maurice, WA & Fitz Maurice, B., 2002. Retrieved on May 3 of 2010.

Web links

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

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Birkhäuser 2004, ISBN 3-540-00489-0 , p. 147.

[2] A new species of Mammillaria (M. marcosii), Series Stylothelae, from northwestern Guanajuato, Mexico . In: Cactus and Succulent Journal . Volume 69. Number 1, Los Angeles 1997, pp. 10-14.

[3] Mammillaria marcosii in the endangered Red List species the IUCN 2010. Posted by Fitz Maurice, WA & Fitz Maurice, B., 2002. Retrieved on May 3 of 2010.