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Erodium cicutarium (Geraniaceae) - Hygroskopische Bewegungen der Teilfrüchte   [Other Title]

Erodium cicutarium (Geraniaceae) - Hygroscopic Movements of the Mericarps   [Title Translation]
Produksjonsår: 1958
Sjanger: Documentary Film
Innspillingssted: n/a

Credits
Production company: IWF (Göttingen)
First released by: IWF (Göttingen)
Distributor: IWF (Göttingen)
Author: Fritz Overbeck
  Bruno Wolters


nøkkelord: Bewegung, Erodium cicutarium, hygroskopische, hygroskopische Bewegung, Reiherschnabel, Samenverbreitung, Herons-bill, hygroscopic movement, seed dispersal, seed dissemination
Herons-bill. When dehydrated the five partial fruits seperate. Water extraction from the dwelling tissue causes a screw-like bending of the lower part. Water supply causes a swelling of the tissue and the unwinding partial fruit drills itself into the soil.

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