Turbinicarpus valdezianus

Turbinicarpus valdezianus
	Turbinicarpus valdezianus
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Cacteae
Genre :	Turbinicarpus
Type :	Turbinicarpus valdezianus
Scientific name
	Turbinicarpus valdezianus
	( H.Moeller ) Glass & RAFoster

Turbinicarpus valdezianus is a species of plant in the genus Turbinicarpus from the cactus family(Cactaceae).

description

Turbinicarpus valdezianus grows individually with green, depressed spherical to somewhat spherical-cylindrical bodies , which appear white due to the dense thorns, and has a thickened turnip and fiber roots. The bodies reach heights of 1 to 2.5 centimeters and diameters of 1.5 to 2.5 (rarely up to 4) centimeters. Their flattened bumps are 2 to 3 millimeters high. There is no central spine . The more than 25 white radial spines are arranged radiating in a star shape and are 1 to 1.5 millimeters long.

The usually white flowers have a magenta central stripe of different widths or are almost completely white. Very rarely are they uniformly magenta in color. The flowers are 2.2 to 2.5 inches long and have a diameter of 2 to 2.5 (rarely up to 3.5) centimeters. The rounded to barrel-shaped fruits are dark greenish brown, dry up like paper and are brittle. They tear open from the base, are 1 to 1.3 centimeters long and have a diameter of 6 to 7 millimeters.

Systematics, distribution and endangerment

Turbinicarpus valdezianus is common in the Mexican states of Coahuila , Nuevo León , Zacatecas and San Luis Potosí . It was first described as Pelecyphora valdeziana in 1930 by Heinrich Möller . In 1977 it was placed in the genus Turbinicarpus by Charles Edward Glass and Robert Alan Foster .

Turbinicarpus valdezianus is listed in Appendix I of the Washington Convention on Endangered Species . In the Red List of Threatened Species of IUCN is it as " Vulnerable (VU) , d". H. classified as endangered.

literature

The white flowering form of Turbinicarpus valdezianus

Edward F. Anderson : The Great Cactus Lexicon . Ulmer, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 635-636 .

Individual evidence

^ German garden newspaper. Weekly for gardeners and gardeners . Volume 45, pp. 179, 207, 1930
^ Cactus and Succulent Journal . Volume 49, Number 4, p. 174, Los Angeles 1977
↑ Turbinicarpus valdezianus in the endangered Red List species the IUCN 2009. Posted by: Anderson, EF, Fitz Maurice, WA, Fitz Maurice, B. & Hofer, A., 2002. Retrieved on January 20 of 2010.

Web links

Commons : Turbinicarpus valdezianus - Collection of images, videos and audio files

[1] German garden newspaper. Weekly for gardeners and gardeners . Volume 45, pp. 179, 207, 1930

[2] Cactus and Succulent Journal . Volume 49, Number 4, p. 174, Los Angeles 1977

[3] Turbinicarpus valdezianus in the endangered Red List species the IUCN 2009. Posted by: Anderson, EF, Fitz Maurice, WA, Fitz Maurice, B. & Hofer, A., 2002. Retrieved on January 20 of 2010.