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

Erodium cicutarium (Geraniaceae) - Hygroscopic Movements of the Mericarps   [Title Translation]
Year of origin: 1958
Genre: Documentary Film
Locations of shooting: n/a

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


Keywords: 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.

Version 1
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Duration: 4 min

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Version 2
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Duration: 4 min

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Version 3
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Duration: 4 min

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Length 44 m Request Copy Button
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