Oriental plane tree ( Platanus orientalis )
The representatives of the Proteales are very different. What they have in common is seeds with little or no endosperm . The ovules are often atropic. The gynoeceum is not fused ( chorikarp ). The stamens show a noticeable apical extension of the connective. The flowers are often twofold.
The proteales are fairly basal within the eudicotyledons within the covering plants . The togetherness of the three contained families was only recognized through molecular genetic studies, as they have few common features.
The order of the silver tree-like includes three families with a total of 82 genera and 1610 species:
- Andreas Bresinsky , Christian Körner , Joachim W. Kadereit , Gunther Neuhaus , Uwe Sonnewald : Textbook of Botany . Founded by Eduard Strasburger . 36th edition. Spektrum Akademischer Verlag, Heidelberg 2008, ISBN 978-3-8274-1455-7 , p. 870 .
- Angiosperm Phylogeny Group : An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III. In: Botanical Journal of the Linnean Society. Volume 161, No. 2, 2009, pp. 105-121, DOI: 10.1111 / j.1095-8339.2009.00996.x .
- The order of Proteales in APWebsite , accessed December 28, 2009.