Gymnocalycium marsoneri

Gymnocalycium marsoneri
	Gymnocalycium marsoneri
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Trichocereeae
Genre :	Gymnocalycium
Type :	Gymnocalycium marsoneri
Scientific name
	Gymnocalycium marsoneri
	Frič ex Y.Itô

Gymnocalycium marsoneri is a species of plant in the genus Gymnocalycium from the cactus family(Cactaceae). The specific epithet marsoneri honors the Argentine cactus collector Oreste Marsoner.

description

Gymnocalycium marsoneri grows individually with gray-green to copper-colored, depressed spherical shoots , which reach heights of up to 7 centimeters with diameters of up to 14 centimeters. The nine to 21 flat ribs are rounded and notched. The approximately seven straight to slightly bent back, light brown thorns become darker with age. They are 2 to 3 inches long.

The yellowish white to white flowers reach a length of 3 to 3.5 centimeters and a diameter of 3 to 4.5 centimeters. The spherical to somewhat egg-shaped fruits are purple or red or bluish green.

Distribution, systematics and endangerment

Gymnocalycium marsoneri is distributed in southwest Brazil , Paraguay , southern Bolivia and northern Argentina at altitudes of 500 to 1500 meters.

It was first described in 1957 by Yoshi Itô . The following subspecies are distinguished:

Gymnocalycium marsoneri subsp. marsoneri
Gymnocalycium marsoneri subsp. matoense (Buining & Brederoo) PJBraun & Esteves

In the Red List of Threatened Species of the IUCN , the species is listed as " Least Concern (LC) ". 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. 319 .

Individual evidence

↑ Detlef Metzing: Naked thistle and spider cactus The genus Gymnocalycium . Special edition of the Deutsche Kakteen-Gesellschaft eV, 2012, p. 41.
↑ Explanatory Diagram of Austroechinocactinae . 1957, p. 293.
↑ Braun, PJ (2017): The cacti native to Mato Grosso do Sul. - cact. and. Sukk. 68 (3): 65-70.
↑ Braun, PJ (2017): An annotated list of species of the Cactaceae from Mato Grosso do Sul: Kugelkakteen. - cact. and. Sukk. 68 (6): 149-156.
↑ Gymnocalycium marsoneri in the IUCN Red List of Threatened Species 2013.2. Listed by: Oakley, L., Pin, A. & Lowry, M., 2010. Retrieved March 15, 2014.

Web links

Commons : Gymnocalycium marsoneri - collection of images, videos and audio files

[1] Detlef Metzing: Naked thistle and spider cactus The genus Gymnocalycium . Special edition of the Deutsche Kakteen-Gesellschaft eV, 2012, p. 41.

[2] Explanatory Diagram of Austroechinocactinae . 1957, p. 293.

[3] Braun, PJ (2017): The cacti native to Mato Grosso do Sul. - cact. and. Sukk. 68 (3): 65-70.

[4] Braun, PJ (2017): An annotated list of species of the Cactaceae from Mato Grosso do Sul: Kugelkakteen. - cact. and. Sukk. 68 (6): 149-156.

[5] Gymnocalycium marsoneri in the IUCN Red List of Threatened Species 2013.2. Listed by: Oakley, L., Pin, A. & Lowry, M., 2010. Retrieved March 15, 2014.