Secondary crown

As Nebenkrone even Nebenperigon or Paracorolla and Corona are in Botany in some angiosperms occurring crown-like structure next to the actual corolla referred. In some carnation plants , the secondary crown is formed by a tongue-shaped, sometimes lobed outgrowth (ligula) of the petals. However, it can also be formed by widening the base of the stamens , which can be fused together (e.g. daffodils ). A corolla is also formed by the corona, located within the corolla of passion flower plants and usually consisting of numerous filamentous appendages ( staminodes ).

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  Daffodils with a strikingly colored corolla that emerged from the stamens

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  Stamens also form in the milkweed one Nebenkrone

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  2-lobed ligules form the side crown of the red carnation

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  Blue passion flower with a filamentous halo

literature

• Herder Lexicon of Biology . Spectrum academ. Verlag, 1994, ISBN 3-86025-156-2 .
• Werner Rothmaler : Excursion flora. Vol. 2: Vascular Plants , People and Knowledge, Berlin 1983.