Echinopsis thelegona

Echinopsis thelegona
	Echinopsis thelegona
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Trichocereeae
Genre :	Echinopsis
Type :	Echinopsis thelegona
Scientific name
	Echinopsis thelegona
	( FACWeber ) H.Friedrich & GDRowley

Echinopsis thelegona is a species of the genus Echinopsis in the cactus family(Cactaceae). The specific epithet thelegona is derived from the Greek words thele for 'wart' and gonia for 'edge' and refers to the bumpy ribs of the species.

description

Echinopsis thelegona grows shrubby with a few branches . The tips of the prostrate to creeping shoots are little raised or erect. The cylindrical, dark green shoots have a diameter of 7 to 8 centimeters and are up to 2 meters long. There are about 12 low ribs that are broken up into conspicuous hexagonal cusps. The areoles on the cusp tips are circular. From them arise light yellow thorns that turn gray with age and are often pointed darker. The single central spine protrudes and is 2 to 4 inches long. The six to seven needle-like radial spines are spread out and have a length of 1 to 2 centimeters. The lowest radial spines are the longest.

The funnel-shaped, white flowers open at night. They are up to 20 centimeters long and have a diameter of 15 centimeters. Your flower tube is covered with reddish bristles and hair . The spherical to egg-shaped, yellowish to reddish fruits are tuberous and tear open. They have a diameter of up to 5 centimeters.

Distribution, systematics and endangerment

Echinopsis thelegona is distributed in the Argentine provinces of Jujuy , Salta and Tucumán on dry slopes at altitudes of 500 to 1000 meters.

The first description as Cereus thelegonus by Frédéric Albert Constantin Weber was published in 1897. Heimo Friedrich and Gordon Douglas Rowley placed the species in 1974 in the genus Echinopsis .

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. 246-247 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 239.
^ In: Karl Moritz Schumann: Complete description of the cacti . Julius Neumann, Neudamm 1897, p. 78 ( online ).
^ Gordon Douglas Rowley: Reunion of the genus Echinopsis . In: IOS Bulletin. Journal of the International Organization for Succulent Plant Study . Volume 3, Number 3, 1974, p. 98.
↑ Echinopsis thelegona in the IUCN Red List of Threatened Species 2013.2. Posted by: Ortega-Baes, P. & Kiesling, R., 2010. Retrieved March 2, 2014.

Web links

Commons : Echinopsis thelegona - collection of images, videos and audio files

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Springer, Berlin / Heidelberg 2010, ISBN 978-3-642-05597-3 , p. 239.

[2] In: Karl Moritz Schumann: Complete description of the cacti . Julius Neumann, Neudamm 1897, p. 78 ( online ).

[3] Gordon Douglas Rowley: Reunion of the genus Echinopsis . In: IOS Bulletin. Journal of the International Organization for Succulent Plant Study . Volume 3, Number 3, 1974, p. 98.

[4] Echinopsis thelegona in the IUCN Red List of Threatened Species 2013.2. Posted by: Ortega-Baes, P. & Kiesling, R., 2010. Retrieved March 2, 2014.