Aethephyllum pinnatifidum

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Aethephyllum pinnatifidum
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Aethephyllum pinnatifidum

Systematics
Nuclear eudicotyledons
Order : Clove-like (Caryophyllales)
Family : Midday flowers (Aizoaceae)
Subfamily : Ruschioideae
Genre : Aethephyllum
Type : Aethephyllum pinnatifidum
Scientific name of the  genus
Aethephyllum
NEBr.
Scientific name of the  species
Aethephyllum pinnatifidum
( Lf ) NEBr.

Aethephyllum pinnatifidum is the only type of monotypic genus Aethephyllum from the family of aizoaceae (Aizoaceae). The botanical name of the genus is derived from the Greek words aethe for 'irregular' and phyllon for 'leaf' and refers to the lyre- to pinnate-shaped leaves of the species.

description

Aethephyllum pinnatifidum grows as a short - lived annual plant with prostrate branches. The pinnate, bilateral, wrinkled leaves are covered with a thin layer of wax and contain protruding bladder cells in their epidermis . The stalked flowers seem to stand individually, but in fact almost the entire plant forms the dichasal inflorescence. The petals are yellow, the stamens are also yellow and have darker anthers . The stamens are papillate at their base , the nectaries flat. The flowering period extends from the middle of winter to early spring, i. H. the plants bloom in their homeland from July to October.

The stems of the five-faceted capsule fruits are S-shaped. Their base is short funnel-shaped, at the top they are flat. The glassy, ​​flexible fan ceilings are short. The capsule fruits contain seeds on the seed coat of which there are knobs that are far apart.

Systematics and distribution

The distribution area of Aethephyllum pinnatifidum extends in South Africa in the Western Cape Province from the city of Clanwilliam , via Piquetberg , Tulbagh to Vanrhynsdorp . It grows in the mountains with winter rainfall of less than 400 millimeters annually.

The first description as Mesembryanthemum pinnatifidum by Carl von Linné the Younger was published in 1781. Nicholas Edward Brown established the genus Aethephyllum for the species in 1928 .

A nomenclatory synonym of the genus is Schwantes subg. Aethephyllum (NEBr.) Schwantes (1950).

proof

literature

  • Heidrun EK Hartmann (Ed.): Illustrated Handbook of Succulent Plants: Aizoaceae AE . Springer Verlag, Berlin / Heidelberg / New York 2001, ISBN 3-540-41691-9 , pp. 26-27 .
  • Gideon Smith et al. a. (Ed.): Mesembs of the World: Illustrated Guide to a Remarkable Succulent Group . Briza Publications, 1998, ISBN 1-875093-13-3 , pp. 58-59 .

Individual evidence

  1. ↑ Urs Eggli, Leonard E. Newton: Etymological Dictionary of Succulent Plant Names . Birkhäuser 2004, ISBN 3-540-00489-0 , p. 4.
  2. ↑ Supplementum Plantarum Systematis Vegetabilium ... . Braunschweig 1781, p. 260 (online) .
  3. ↑ Möller's German gardener newspaper . Volume 43, 1928, p. 400.

Web links

Commons : Cleretum pinnatifidum  - collection of images, videos and audio files
  • Photos of Aethephyllum pinnatifidum