Commelinales

Virginia Spiderwort ( Tradescantia virginiana)

The Commelina behaved ( Commelinales ) are an order of Commeliniden within the monocots.

Description

The species of this order is predominantly perennial - annual in rare cases - herbaceous plants. The alternate or occasionally two lines arranged leaves are grown scheidig on the ground.

The flowers are often zygomorphic to radial symmetry and usually hermaphrodite. The flowers circuits are three - or exceptionally two-numbered. The perianth ( perianth ) is divided into sepals ( sepals ) and different colored and shaped petals ( petals ). The androecium ( = all of the male flower organs ) comprises two stamen circles, each with three stamens, but also reduces or staminodes ( = sterile stamens ) can be transformed, which then as petals act ( only one fertiles stamen at Philydraceae ). The upper permanent gynoecium ( = all of the female flower organs ) consists of three carpels.

It will be developed capsule-like fruit. The seeds contain plenty of starchy endosperm ( nutritive tissue = ), the present one is usually very small embryo.

There are ferulic acid and silicate inclusions present.

System

The order of the Commelina -like be allotted five families:

Cladogram after APWebsite and Chase 2006:

Commelinaceae

Hanguanaceae

Philydraceae

Haemodoraceae

Pontederiaceae

Swell

  • The order of Commelinales in APWebsite. (English )
  • Andreas Bresinsky, Christian Körner, Joachim W. Kadereit, Gunther Neuhaus, Uwe Sonnewald: Strasburger - Textbook of Botany, founded by Eduard Strasburger, Spektrum Akademischer Verlag, Heidelberg 2008, 36th edition ISBN 978-3827414557: Commelinales: S. 866. -867.
  • Mark W. Chase, Michael F. Fay, Dion S. Devey, Oliver Maurin, Nina Rønsted, T. Jonathan Davies, Yohan Pillon, Gitte Petersen, Ole Seberg, MN Tamura, Conny B. Asmussen, Khidir Hilu, Thomas Borsch, Jerrold I. Davis, Dennis W. Stevenson, J. Chirs Pires, Thomas J. Givnish, Kenneth J. Sytsma, Marc A. McPherson, Sean W. Graham & Hardeep S. Rai: MultiGene Analyses of monocot relationships: . a summary, in Aliso, Volume 22, 2006, pp. 63-75.
Perennial plant Cereal germ
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