Mammillaria albicans

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Mammillaria albicans
Mammillaria albicans

Mammillaria albicans

Systematics
Order : Clove-like (Caryophyllales)
Family : Cactus family (Cactaceae)
Subfamily : Cactoideae
Tribe : Cacteae
Genre : Mammillaria
Type : Mammillaria albicans
Scientific name
Mammillaria albicans
( Britton & Rose ) A. Berger

Mammillaria albicans is a species of the genus Mammillaria in the cactus family(Cactaceae). The specific epithet albicans means 'whitish shimmering'.

description

Mammillaria albicans grows branching and group-forming at the base. The cylindrical, pale green plant bodies, almost completely covered by thorns, grow up to 20 centimeters high and 6 centimeters in diameter. The warts are broadly conical and have no milky sap . The areoles are covered with dense wool and only a few bristles. The 4 to 8  central spines are straight (sometimes one is hooked). They are 0.8 to 1 centimeter long, white with a brown tip. The 14 to 21 white radial spines are 0.5 to 0.8 inches long.

The funnel-like wide, about 2 centimeters in diameter flowers are white to light pink with pink central stripes. The 10 to 12 millimeter long stylus have pink scar lobes, the stamens are pink with yolk-yellow anthers. The fruits are slim club-shaped, orange to red in color and 10 to 18 millimeters long. The seeds are black and balloon-shaped.

Distribution, systematics and endangerment

Mammillaria albicans is distributed in the Mexican states of Baja California and Baja California Sur as well as on offshore islands on calcareous soils at heights of up to 200 meters.

It was first described as Neomammillaria albicans in 1923 by Nathaniel Lord Britton and Joseph Nelson Rose . Alwin Berger introduced the species to Mammillaria in 1929 .

Synonyms are the following types and forms described: Neomammillaria albicans Britton & Rose (1923), Chilita albicans (Britton & Rose) Orcutt (1926), Bartschella albicans (Britton & Rose) Doweld (2000), Neomammillaria slevinii Britton & Rose (1923), Chilita slevinii (Britton & Rose) Orcutt (1926), Mammillaria slevinii (Britton & Rose) Boed. (1933), Mammillaria albicans fa. slevinii (Britton & Rose) Neutelings (1986) and Mammillaria albicans fa. dolorensis J. Lüthy (1992).

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 . 2nd Edition. Eugen Ulmer KG, Stuttgart 2011, ISBN 978-3-8001-5964-2 , pp. 368 .
  • Ulises Guzmán, Salvador Arias, Patricia Dávila: Catálogo de cactáceas mexicanas . Universidad Nacional Autónoma de México, Mexico City 2003, ISBN 970-9000-20-9 , pp. 111 .

Individual evidence

  1. ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Birkhäuser 2004, ISBN 3-540-00489-0 , p. 5.
  2. ^ NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape IV . The Carnegie Institution of Washington, Washington 1923, p. 138 ( online ).
  3. ↑ Alwin Berger : Cacti - instructions for culture and knowledge of the most important introduced species . Eugen Ulmer, Stuttgart 1929, p. 308 .
  4. ^ Mammillaria albicans in the IUCN Red List of Threatened Species 2013.2. Posted by: León de la Luz, JL, Hernández, HM & Gómez-Hinostrosa, C., 2012. Accessed December 23, 2013.

Web links

Commons : Mammillaria albicans  - Collection of images, videos and audio files