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APG-Fam.: Araceae / Arum Fam.       Fam. tradit.: Lemnaceae / Duckweed Fam.  

Genus:  Spirodela  SCHLEID.
 

Authors:
   L.:  Carl von Linné (Linnaeus, 1707 - 1777), Swedish naturalist who introduced the binary naming system for plants and animals
   SCHLEID.:  Matthias Jacob Schleiden (1804 - 1881), German botanist
 

Etymology:
   Spirodela:   speira = winding, delos = obvious (spiral vessels)
   polyrhiza:   many-rooted
 

Spirodela polyrhiza / Greater Duckweed, D Mainz 13.9.2008
Fig. 1:  Spirodela polyrhiza / Greater Duckweed
D Mainz 13.9.2008
Spirodela polyrhiza / Greater Duckweed, D Mainz 13.9.2008
Fig. 2:  Spirodela polyrhiza / Greater Duckweed
D Mainz 13.9.2008
Spirodela polyrhiza / Greater Duckweed, D Mainz 13.9.2008
Fig. 3:  Spirodela polyrhiza / Greater Duckweed
D Mainz 13.9.2008
Spirodela polyrhiza / Greater Duckweed, D Friedberg 26.8.2006
Fig. 4:  Spirodela polyrhiza / Greater Duckweed
D Friedberg 26.8.2006
Spirodela polyrhiza / Greater Duckweed, D Dinkelsbühl 9.10.2009
Fig. 5:  Spirodela polyrhiza / Greater Duckweed
D Dinkelsbühl 9.10.2009
Spirodela polyrhiza / Greater Duckweed, D Zülpich-Juntersdorf 13.6.2019
Fig. 6:  Spirodela polyrhiza / Greater Duckweed
D Zülpich-Juntersdorf 13.6.2019
Spirodela polyrhiza / Greater Duckweed, D Dorsten 14.6.2018
Fig. 7:  Spirodela polyrhiza / Greater Duckweed
D Dorsten 14.6.2018
Spirodela polyrhiza / Greater Duckweed, D Groß-Gerau 25.6.2015
Fig. 8:  Spirodela polyrhiza / Greater Duckweed
D Groß-Gerau 25.6.2015
Spirodela polyrhiza / Greater Duckweed, D Groß-Gerau 25.6.2015
Fig. 9:  Spirodela polyrhiza / Greater Duckweed
D Groß-Gerau 25.6.2015
Spirodela polyrhiza / Greater Duckweed, D Groß-Gerau 29.5.2021
Fig. 10:  Spirodela polyrhiza / Greater Duckweed (another site)
D Groß-Gerau 29.5.2021
Spirodela polyrhiza / Greater Duckweed, D Groß-Gerau 29.5.2021
Fig. 11:  Spirodela polyrhiza / Greater Duckweed
D Groß-Gerau 29.5.2021
Spirodela polyrhiza / Greater Duckweed, D Mannheim 3.6.2019
Fig. 12:  Spirodela polyrhiza / Greater Duckweed
D Mannheim 3.6.2019
Spirodela polyrhiza / Greater Duckweed, D Mannheim 3.6.2019
Fig. 13:  Spirodela polyrhiza / Greater Duckweed
D Mannheim 3.6.2019
Spirodela polyrhiza / Greater Duckweed, D Eggenstein-Leopoldshafen 27.5.2022
Fig. 14:  Spirodela polyrhiza / Greater Duckweed
D Eggenstein-Leopoldshafen 27.5.2022
Spirodela polyrhiza / Greater Duckweed, D Eggenstein-Leopoldshafen 27.5.2022
Fig. 15:  Spirodela polyrhiza / Greater Duckweed
D Eggenstein-Leopoldshafen 27.5.2022
Spirodela polyrhiza / Greater Duckweed, D Eggenstein-Leopoldshafen 27.5.2022
Fig. 16:  Spirodela polyrhiza / Greater Duckweed
D Eggenstein-Leopoldshafen 27.5.2022
Spirodela polyrhiza / Greater Duckweed, S Bohus 7.8.2010
Fig. 17:  Spirodela polyrhiza / Greater Duckweed
S Bohus 7.8.2010
Spirodela polyrhiza / Greater Duckweed, S Bohus 7.8.2010
Fig. 18:  Spirodela polyrhiza / Greater Duckweed
S Bohus 7.8.2010

 


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Copyright: Use of the images and texts only with the author's written permission.