Acanthocalycium glaucum

Acanthocalycium glaucum
	Acanthocalycium glaucum
Systematics
Order :	Clove-like (Caryophyllales)
Family :	Cactus family (Cactaceae)
Subfamily :	Cactoideae
Tribe :	Trichocereeae
Genre :	Acanthocalycium
Type :	Acanthocalycium glaucum
Scientific name
	Acanthocalycium glaucum
	F. Knight

Acanthocalycium glaucum is a species of plant in the genus Acanthocalycium from the cactus family(Cactaceae). Thespecific epithet glaucum comes from Latin and means 'blue-gray, also sea green' and refers to the color of the plant body.

description

Acanthocalycium glaucum grows individually with spherical to short cylindrical, blue-green shoots and reaches heights of 6 to 15 centimeters with diameters of 3 to 7 centimeters. There are 8 to 14 blunt, notched ribs that are up to 1.5 centimeters high. From the white areoles , which are 1.5 to 2 centimeters apart , arise black thorns that are broadened at their base. The 1 to 2 central spines that are sometimes present are usually absent. The 5 to 10 radial spines are straight, sub-like and 0.5 to 2 inches long.

unripe fruit

The yellow, short funnel-shaped flowers are up to 6 centimeters long and have the same diameter. The spherical fruits are dark green and can reach a diameter of up to 2 centimeters.

Systematics and distribution

Acanthocalycium glaucum is common in the Argentine provinces of Catamarca and La Rioja at altitudes of 2000 to 3600 meters.

The first description was published in 1964 by Friedrich Ritter .

Nomenclatory synonyms are Acanthocalycium thionanthum var. Glaucum (F.Ritter) Donald (1975, nom. Inval. ICBN -Article 33.3), Lobivia thionantha var. Glauca (F.Ritter) Rausch (1987) and Echinopsis thionantha subsp. glauca (F.Ritter) M.Lowry (2005) Other synonyms include: a. Echinopsis auranthiaca (Rausch) H. Friedrich & GDRowley (1974) ≡ Lobivia thionantha var. Aurantiaca (Rausch) Rausch (1987).

proof

literature

Edward F. Anderson : The Great Cactus Lexicon . Eugen Ulmer KG, Stuttgart 2005, ISBN 3-8001-4573-1 , p. 67 .

Individual evidence

↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Birkhäuser 2004, ISBN 3-540-00489-0 , p. 95.
↑ Friedrich Ritter: Diagnoses of new cacti . In: Taxon . Volume 13, Number 4, 1964, pp. 143-144 ( JSTOR 1217799 ).
↑ Cactaceae Systematics Initiatives . Number 19, 2005, p. 12.

Web links

Commons : Acanthocalycium glaucum - collection of images, videos and audio files

[1] Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Birkhäuser 2004, ISBN 3-540-00489-0 , p. 95.

[2] Friedrich Ritter: Diagnoses of new cacti . In: Taxon . Volume 13, Number 4, 1964, pp. 143-144 ( JSTOR 1217799 ).

[3] Cactaceae Systematics Initiatives . Number 19, 2005, p. 12.