Resupination
Under resupination ( latin resupinatio ) refers to the rotation of flowers , by which originally located on the upper surface (adaxial) parts rotated downward, and thus come in a abaxial position. Such flowers are called resupinated. An example of resupination are the flowers of orchids . By turning the flower stalk or ovary by 180 degrees, the lip is brought into an abaxial position and serves as an approach organ for insects.
Resupination can also occur in leaves ; the leaf blade rotates 180 degrees as it unfolds in the stem area, and the palisade parenchyma lies on the underside of the leaf. The wild garlic , for example, shows such behavior.
The term resupination was already used by Carl von Linné in his Philosophia botanica , 1751, p. 104.
Individual evidence
- ↑ a b Gerhard Wagenitz : Dictionary of Botany. Morphology, anatomy, taxonomy, evolution. 2nd, expanded edition. Nikol, Hamburg 2008, ISBN 978-3-937872-94-0 , p. 274.
- ↑ Schütt, Schuck, Stimm: Lexicon of tree and shrub species . Nikol, Hamburg 2002, ISBN 3-933203-53-8 , pp. 321 .
- ↑ Schütt, Schuck, Stimm: Lexicon of tree and shrub species . Nikol, Hamburg 2002, ISBN 3-933203-53-8 , pp. 441 .