Gymnocalycium hyptiacanthum

Gymnocalycium hyptiacanthum
	Gymnocalycium hyptiacanthum subsp. schroederianum
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Trichocereeae
Genre :	Gymnocalycium
Type :	Gymnocalycium hyptiacanthum
Scientific name
	Gymnocalycium hyptiacanthum
	( Lem. ) Britton & Rose

Gymnocalycium hyptiacanthum is a species of plant in the genus Gymnocalycium from the cactus family(Cactaceae).

description

Gymnocalycium hyptiacanthum grows individually with dark green to gray-green to pale green, flattened spherical to spherical shoots that reach a diameter of 10 centimeters and more. The nine to eleven (rarely up to 18) ribs are divided into conical cusps. The single white to gray central spine is directed downwards and up to 2 centimeters (rarely up to 4 centimeters) long. The three to seven stiff, thin, straight radial spines that are slightly curved towards the shoot are whitish to yellowish or grayish with a darker base. They are up to 1 inch long.

The bell- to funnel-shaped, white or light yellowish or greenish-white flowers reach a length of up to 5 centimeters (rarely up to 7 centimeters) and a diameter of 5.5 centimeters.

Distribution, systematics and endangerment

Gymnocalycium hyptiacanthum is found in southern Uruguay and northeast Argentina at altitudes of up to 500 meters.

It was first described as Echinocactus hyptiacanthus in 1839 by Charles Lemaire . Nathaniel Lord Britton and Joseph Nelson Rose put the species in 1922 in the genus Gymnocalycium . The following subspecies are distinguished:

Gymnocalycium hyptiacanthum subsp. hyptiacanthum
Gymnocalycium hyptiacanthum subsp. paucicostatum (R. Kiesling) Papsch
Gymnocalycium hyptiacanthum subsp. schroederianum (east) Papsch

In the Red List of Threatened Species of IUCN the way and the subspecies is Gymnocalycium hyptiacanthum subsp. schroederianum as " Least Concern (LC) ", d. H. listed as not endangered.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 317-318 .

Individual evidence

↑ Cactearum Genera Nova Speciesque Novae et Omnium in Horto Monvilliano . Paris 1839, p. 21.
^ NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape III . The Carnegie Institution of Washington, Washington 1922, p. 156 .
↑ Gymnocalycium hyptiacanthum in the IUCN Red List of Threatened Species 2013.2. Posted by: Duarte, W., 2011. Retrieved March 13, 2014.
↑ Gymnocalycium schroederianum in the IUCN Red List of Threatened Species 2013.2. Posted by: Kiesling, R., Oakley, L., Duarte, W. & Demaio, P., 2010. Retrieved March 13, 2014.

[1] Cactearum Genera Nova Speciesque Novae et Omnium in Horto Monvilliano . Paris 1839, p. 21.

[2] NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape III . The Carnegie Institution of Washington, Washington 1922, p. 156 .

[3] Gymnocalycium hyptiacanthum in the IUCN Red List of Threatened Species 2013.2. Posted by: Duarte, W., 2011. Retrieved March 13, 2014.

[4] Gymnocalycium schroederianum in the IUCN Red List of Threatened Species 2013.2. Posted by: Kiesling, R., Oakley, L., Duarte, W. & Demaio, P., 2010. Retrieved March 13, 2014.