Gymnocalycium bruchii
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Caryophyllales
Family: Cactaceae
Subfamily: Cactoideae
Genus: Gymnocalycium
Species:
G. bruchii
Binomial name
Gymnocalycium bruchii
(Speg.) Hosseus 1926

Gymnocalycium bruchii is a species of Gymnocalycium from Argentina.[2]

Description

Gymnocalycium bruchii grows abundantly and forms multi-headed mats of dark green shoots that reach heights of up to 3.5 centimeters with diameters of 6 centimeters. The approximately eight to 12 (-17) low, straight ribs are rounded and tuberous. The one to three white or brownish central spines, which can occasionally be missing, are protruding. The twelve to 14 (up to 26) (rarely from seven) thin, bristle-like, glassy white marginal spines are bent back and 2 to 6 millimeters long.

The delicate violet-pink to white flowers, which are often unisexual, are usually 3.5 to 5 centimeters long and have the same diameter. The pericarpel is short, dark brown-green and shows some light-edged scales. Stamens, styles and stigma branches are white and the pollen is yellowish. The blue-green to whitish-green fruits are spherical, pear-shaped or spindle-shaped. They are up to 1.5 centimeters long and reach 1.2 centimeters in diameter. The seeds are 1.2 to 1.4 mm long and more or less spherical.[3]

Distribution

Gymnocalycium bruchii is widespread in the Argentine province of Córdoba and San Luis at altitudes of 500 to 2000 meters.

Taxonomy

The first description as Frailea bruchii was made in 1923 by Carlos Luis Spegazzini.[4] The specific epithet bruchii honors the Argentine photographer and entomologist Carlos Bruch (1869–1943). Carl Curt Hosseus placed the species in the genus Gymnocalycium in 1926. A nomenclature synonym is Astrophytum bruchii (Speg.) Halda & Malina (2005).

References

  1. ↑ "The IUCN Red List of Threatened Species". IUCN Red List of Threatened Species. 2010-09-21. Retrieved 2023-09-23.
  2. ↑ "Gymnocalycium bruchii in Tropicos".
  3. ↑ Anderson, Edward F.; Eggli, Urs (2005). Das grosse Kakteen-Lexikon (in German). Stuttgart (Hohenheim): Ulmer. p. 312. ISBN 3-8001-4573-1.
  4. ↑ Argentina, Sociedad Científica; Cient&amp, Congreso; Americano, fico Latino; Cient&amp, Congreso (1923). "Anales de la Sociedad Científica Argentina". [Sociedad Científica Argentina]. ISSN 0037-8437. Retrieved 2023-09-23.
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