Stetsonia coryne

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Stetsonia coryne
Stetsonia coryne in the Phoenix Desert Botanical Garden

Stetsonia coryne
the Desert Botanical Garden of Phoenix

Systematics
Order : Clove-like (Caryophyllales)
Family : Cactus family (Cactaceae)
Subfamily : Cactoideae
Tribe : Browningieae
Genre : Stetsonia
Type : Stetsonia coryne
Scientific name of the  genus
Stetsonia
Britton & Rose
Scientific name of the  species
Stetsonia coryne
( Salm-Dyck ) Britton & Rose

Stetsonia coryne is the only plant species of the monotypic genus Stetsonia in the cactus family(Cactaceae). The botanical name of the genus honors the American lawyer and gardening lover Francis Lynde Stetson (1846–1920). The epithet of the species is derived from the Greek noun "κορύνη" (coryne) for club and refers to the shape of the seedling plants.

description

The huge, tree-like Stetsonia coryne reaches a height of 5 to 8 meters. Numerous upright or slightly curved branches form from one trunk. The blue-green shoots are usually not articulated and are 9 to 10 centimeters in diameter. There are 8 to 9 blunt-edged, somewhat notched ribs that are 1 to 1.5 centimeters high. The yellow thorns , which later turn black, are straight and stiff. The central spine is up to 5 centimeters long, the 7 to 9 expanded radial spines up to 3 centimeters long.

The funnel-shaped flowers are white and are up to 15 centimeters in diameter. They open at night and often stay open until the next day. The pericarpel is covered with numerous, tile-like, the long corolla tube with scattered scales.

The egg-shaped, scaly, edible fruits are green to reddish and have a sloping flower remnant. The broad oval, glossy black-brown seeds are 1.7 millimeters long and 1 millimeter wide. They are humped with a finely wrinkled pattern.

Distribution, systematics and endangerment

Stetsonia coryne is widespread in the high dry areas in northwest Argentina as well as in Bolivia , Paraguay and Brazil . The first description as Cereus coryne was made in 1850 by Joseph zu Salm-Reifferscheidt-Dyck . Nathaniel Lord Britton and Joseph Nelson Rose placed them in their newly established monotypical genus Stetsonia in 1920 .

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. 607 .
  • Curt Backeberg : Die Cactaceae: Handbuch der Kakteenkunde . 2nd Edition. tape II . Gustav Fischer Verlag, Stuttgart New York 1983, ISBN 3-437-30381-3 , p. 913-915 .
  • NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape II . The Carnegie Institution of Washington, Washington 1920, p. 64-65 .

Individual evidence

  1. ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . S. 55, Birkhäuser, 2004. ISBN 3-540-00489-0
  2. ↑ Braun, PJ (2017): The cacti native to Mato Grosso do Sul. - cact. and. Sukk. 68 (3): 65-70.
  3. ↑ Braun, PJ (2017): An annotated list of species of the Cactaceae from Mato Grosso do Sul: Säulenkakteen. - cact. and. Sukk. 68 (7): 191-197.
  4. ↑ Cacteae in Horto Dyckensi Cultae. Anno 1849 . P. 205, 1850
  5. ^ NL Britton , JN Rose : The Cactaceae. Descriptions and Illustrations of Plants of the Cactus Family . tape II . The Carnegie Institution of Washington, Washington 1920, p. 64-65 .
  6. ↑ Stetsonia coryne in the IUCN Red List of Threatened Species 2013.2. Listed by: Oakley, L. & Pin, A., 2010. Retrieved December 31, 2013.

Web links

Commons : Stetsonia coryne  - album with pictures, videos and audio files