Spirodela polyrrhiza


 

Images by Surajit Koley 

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Spirodela polyrhiza (L.) Schleid. from Hooghly:
According to the "Plant Groups", a college text book, Spirodela polyrrhiza L., is a common floating herb; and according to wiki "polyrrhiza" is a orthographical variant of "polyrhiza"!
Habit & Habitat : aquatic herb in a pond
Date : 30/8/12, 12.17 p.m.
Place : Garalgacha (Hooghly)
but these leaves are growing in some mathematical precision pattern...
tumi paro baba. first grasses
now aquatics
Charpasher soundarya ekhon hoyto ektu adhtu andaz korte parchi.
 
 
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Earlier post - efi thread
 
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Spirodela polyrhiza (L.) Schleid. is a common winter/spring aquatic weed in Pantnagar.
 
 
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Please help in the ID of Lemna sp. photographed from our College pond in Delhi.
All these are Spirodela polyrhiza (L.) Schleid.
 
 
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Lemna japonica Landolt, Veröff. Geobot. Inst. E.T.H. Stiftung Rübel Zürich. 70: 23. 1980.
Supposed to be differing from L. minor in intense red fronds beneath. Pl. validate. Photographed from Dal Lake Kashmir. Now placed in Lemnaceae.
It appears in the pictures that fronds have many roots underside. Lemna is described as having 1 or 2 roots only, more than 2 roots indicate towards Spirodela.
These are Spirodela polyrhiza (L.) Schleid.
 
 
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Attachments (3).
This floating hydrophyte is very common..
Please suggest id..
Is this Spirodela polyrhiza..??
Yes, Spirodela polyrhiza.
Thanks a lot ... for confirming... 
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Araceae, Arecaceae and Zingiberaceae Month: Araceae- Spirodela for id:: NS Aug 33 : 4 posts by 3 authors.
Attachments (3).
This was reported from a water body with stagnant water..
Is there mixing up of Spirodela and Lemna..??
This seems to be a different species looking upon striated leaves.. please give your valuable comments...
Very nice pictures ...! I think it is Spirodela polyrhiza.
 
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Araceae, Arecaceae and Zingiberaceae Fortnight: August 1 to 14, 2014 : Araceae : Lemna minor : For Validation : Mumbai : 300814 : AK-121 : 3 posts by 2 authors. Attachments (2).
Seen floating in a pond at Jijamata Udyan, in August,2014.
Kindly validate.

efi page on Lemna minor


These are Spirodela polyrrhiza (L.) Schleid.
 
 
 
 
 
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