Gymnocalycium uruguayense

Gymnocalycium uruguayense
	Gymnocalycium uruguayense f. roseiflorum
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Trichocereeae
Genre :	Gymnocalycium
Type :	Gymnocalycium uruguayense
Scientific name
	Gymnocalycium uruguayense
	( Arechav. ) Britton & Rose

Gymnocalycium uruguayense is a species of plant in the genus Gymnocalycium from the cactus family(Cactaceae). The specific epithet uruguayense refers to the distribution area in Uruguay .

description

Gymnocalycium uruguayense grows sprouting and forming groups with juicy green to blue-green, flattened spherical shoots that are sunk into the ground up to the apex or protrude 3 to 4 centimeters with a diameter of 5 to 10 centimeters (rarely up to 14 centimeters). There is a beet. The six to ten (rarely up to 14) ribs are divided into hexagonal cusps with a noticeable chin-like protrusion. Central spines are absent. The three to seven finely downy, straight to slightly curved, yellowish-brown to whitish radial spines lie on the shoot surface. They are 1 to 3 inches long.

The bell-shaped, whitish to lemon yellow or pink, sometimes greenish yellow flowers reach a length of up to 4 centimeters and a diameter of 5.5 to 6.5 centimeters. The flowers are occasionally unisexual and the plants dioecious. The elongated to egg-shaped fruits are dark green to blue-green and have a length of up to 2 centimeters and a diameter of 1 centimeter.

Distribution, systematics and endangerment

Gymnocalycium uruguayense is distributed in Brazil in the state of Rio Grande do Sul and in Uruguay .

It was first described as Echinocactus uruguayensis in 1905 by José Arechavaleta . Nathaniel Lord Britton and Joseph Nelson Rose put the species in 1922 in the genus Gymnocalycium . A synonym is among others Echinocactus guerkeanus Heese (1911).

In the Red List of Threatened Species of IUCN is the species as " Vulnerable (VU) ", d. H. listed as endangered.

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 329 .

Individual evidence

↑ Anales del Museo Nacional de Montevideo . Volume 5, 1905, p. 218, plate 14.
^ 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. 162 .
↑ Gymnocalycium uruguayense in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Larocca, J., Machado, M. & Duarte, W., 2010. Retrieved March 15, 2014.

Web links

Commons : Gymnocalycium uruguayense - Collection of pictures, videos and audio files

[1] Anales del Museo Nacional de Montevideo . Volume 5, 1905, p. 218, plate 14.

[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. 162 .

[3] Gymnocalycium uruguayense in the Red List of Threatened Species of the IUCN 2013.2. Posted by: Larocca, J., Machado, M. & Duarte, W., 2010. Retrieved March 15, 2014.