Koeberlinia

Koeberlinia spinosa

Koeberlinia spinosa is the only species of the monotypic genus Koeberlinia, the only genus of the family of Koeberliniaceae within the order of Kreuzblütlerartigen ( Brassicales ). The genus is named after the German pastor and botanist Christoph Ludwig Köberlin ( 1794-1862 ).

Dissemination

It is native to the arid regions of the southern USA and Mexico from Lower Rio Grande through Trans - Pecos Texas to the southeastern Arizona and south to northern Mexico. In addition, there is evidence for Bolivia.

Description

Koeberlinia spinosa usually grows as a thorny shrub, rarely a small tree. It is a xerophyte who owns most of the year, no leaves. The green branches take over photosynthesis. The bark is greenish at first and later becomes dark gray - brown, rough and scaly. The opposite, existing only for a short time after the spring rain leaves are simple, membranous, tiny ( 1.5 to 2.2 mm) and scale-like. Stipules absent.

The flowers are in racemose inflorescences with tiny bracts. The hermaphrodite flowers are radial symmetry and cruciform; they see those of the cabbage family like that. The four small, free sepals each other decussate. The four free petals are nailed and greenish- white. There are two circles of four free, fertile stamens present. The pollen is tricolporate. Two to five carpels are fused into a superior ovaries. The ovary compartment are 5 to 50 ovules present.

It is formed a fleshy, wenigsamige berry that is glossy black when ripe. The seeds are black and hard.

System

This genus was formerly classified in the family Celastraceae. Most closely related are the Bataceae and Salvadoraceae.

There are two subtypes of the type:

  • Koeberlinia spinosa Zucc. subsp. spinosa
  • Koeberlinia spinosa Zucc. subsp. tenuispina (Kearney & Peebles ) A. E. Murray.

Swell

  • The Koeberliniaceae family in APWebsite (English )
  • The Koeberliniaceae at DELTA family. (English )
  • Klaus Kubitzki: Koeberliniaceae in Klaus Kubitzki: The Families and Genera of Vascular Plants. Flowering Plants. Dicotyledons. Malvales, Capparales and Non- betalain Caryophyllales. , Springer Verlag, Berlin 2002, Volume V, pp. 218-219. ISBN 3-5404-2873-9
  • Sheet with distribution map from Virginia Tech 's College of Natural Resources.
Adolf Engler Joseph Gerhard Zuccarini Ovary (botany) Batis (plant)
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