Ludwigia prostrata from Hooghly

[surajit koley]

Sir / Madam,

Found this small herb on the steps of a pond.

Species : Ludwigia prostrata Roxb.

Habit & Habitat : wild herb, beside pond

Date : 3/6/12, 9.27 a.m.

Place : Nalikul, Hooghly

ID help : http://www.efloras.org/florataxon.aspx?flora_id=610&taxon_id=200015093 and https://groups.google.com/forum/?fromgroups#!topic/indiantreepix/1whQOvD_u7I

Thank you & Regards,

Surajit Koley

[surajit koley]

Sorry, forgot to attache the pics.. here they are,

Regards,

Surajit Koley

[ushadi Micromini]

ALL:    found a ref where  a line drawing sort of looks different from Surajit's  flower... look at it ... and tell  me please...  http://www.wssa.net/Weeds/Invasive/FactSheets/Ludwigia%20prostrata.pdf


Usha di
==

--
Usha di
===========

[Giby Kuriakose]

Please refer the following links.

https://groups.google.com/forum/?hl=en&fromgroups#!searchin/indiantreepix/ludwigia$20giby/indiantreepix/1whQOvD_u7I/s4uBLrY1IMQJ 

https://groups.google.com/forum/?hl=en&fromgroups#!searchin/indiantreepix/ludwigia$20giby/indiantreepix/gbDZvxELL_Q/ZV0vQr9EtyIJ 

Regards

Giby

--
GIBY KURIAKOSE PhD
Ashoka Trust for Research in Ecology and the Environment (ATREE),
Royal Enclave,
Jakkur Post, Srirampura
Bangalore- 560064
India
Phone - +91 9448714856 +919947109987 (Mobile)
visit my pictures @ http://www.flickr.com/photos/giby

[surajit koley]

Well, the attached pdf file shows very different looking plant. Thank you Usha Di, now, i'll have to search for more.

Regards,

surajit

[surajit koley]

Giby Sir,

Thank you very much for those reference. What i learn is -

1. 4-winged stem with 4 stamens = L. prostrata

2. 4-angled capsule = L. prostrata

3. glabrous similar plant = L. perennis

Since i didn't take any petal or sepal measurement, neither have any picture of capsule, i take it simply as Ludwigia sp.

Regards,

surajit

[surajit koley]

Sir / Madam,

Attaching more images that maybe of the same plant, but from different individuals. Also attaching a larger image of the flower.

Thank you & Regards,

Surajit Koley

On Mon, Jun 11, 2012 at 11:43 PM, surajit koley <surajitno...@gmail.com> wrote:

[surajit koley]

Sir / Madam,

A description of Ludwigia prostrata Roxb., obtained from various source informs -

1. 10-60 cm. tall - http://www.efloras.org/florataxon.aspx?flora_id=610&taxon_id=200015093
2. stems often red tinged - http://www.efloras.org/florataxon.aspx?flora_id=610&taxon_id=200015093
3. stems winged, well branched - pdf file attached by Giby Sir at - https://groups.google.com/forum/?hl=en&fromgroups#!searchin/indiantreepix/ludwigia$20giby/indiantreepix/gbDZvxELL_Q/ZV0vQr9EtyIJ

Images of the same plant -

• http://michikusanojikan.at.webry.info/200810/article_15.html
  
• http://lalajacky.blogspot.in/2010/09/blog-post_04.html
  

The images in this post closely suggest that the species is Ludwigia prostrata Roxb.

Thank you & Regards,

Surajit Koley

On Mon, Jun 11, 2012 at 11:43 PM, surajit koley <surajitno...@gmail.com> wrote:

[ushadi Micromini]

Surajit
i must say you do a good follow up  of your cases and are doing justice to the data collected at indiatreepix...

in this case, as i read the keys and peruse the pdf sent by giby...
that strikes me still is the long pedicle? for the flower and the long seedpod... both if photographed and depicted in this kind of forum would convince people like me,

usha di
=

On Thu, Jun 14, 2012 at 1:20 AM, surajit koley <surajitno...@gmail.com> wrote:

Sir / Madam,

A description of Ludwigia prostrata Roxb., obtained from various source informs -

1. 10-60 cm. tall - http://www.efloras.org/florataxon.aspx?flora_id=610&taxon_id=200015093
2. stems often red tinged - http://www.efloras.org/florataxon.aspx?flora_id=610&taxon_id=200015093
3. stems winged, well branched - pdf file attached by Giby Sir at - https://groups.google.com/forum/?hl=en&fromgroups#!searchin/indiantreepix/ludwigia$20giby/indiantreepix/gbDZvxELL_Q/ZV0vQr9EtyIJ

Images of the same plant -

• http://michikusanojikan.at.webry.info/200810/article_15.html
  
• http://lalajacky.blogspot.in/2010/09/blog-post_04.html
  

The images in this post closely suggest that the species is Ludwigia prostrata Roxb.

Thank you & Regards,

Surajit Koley

On Mon, Jun 11, 2012 at 11:43 PM, surajit koley <surajitno...@gmail.com> wrote:

Sir / Madam,

Found this small herb on the steps of a pond.

Species : Ludwigia prostrata Roxb.

Habit & Habitat : wild herb, beside pond

Date : 3/6/12, 9.27 a.m.

Place : Nalikul, Hooghly

ID help : http://www.efloras.org/florataxon.aspx?flora_id=610&taxon_id=200015093 and https://groups.google.com/forum/?fromgroups#!topic/indiantreepix/1whQOvD_u7I

Thank you & Regards,

Surajit Koley

--
Usha di
===========

[surajit koley]

---------- Forwarded message ----------
From: surajit koley <surajitno...@gmail.com>
Date: Thu, Jun 14, 2012 at 6:56 AM
Subject: Re: [efloraofindia:119458] Re: Ludwigia prostrata from Hooghly
To: ushadi Micromini <micromi...@gmail.com>


Good morning Usha Di.

I will try to collect more data.

Regards,

Surajit Koley

[surajit koley]

Sir / Madam,

Attaching more images of the same species and of the same individual as in my first upload. These pictures were taken yesterday (14-06-2012) morning.

Regards,

Surajit Koley

On Mon, Jun 11, 2012 at 11:43 PM, surajit koley <surajitno...@gmail.com> wrote:

[J.M. Garg]

I think it should be Ludwigia linifolia (Vahl) R.S. Rao (syn: Ludwigia hyssopifolia (G. Don) Exell) as per The Genus Ludwigia (Onagraceae) in India by I.C. Barua- Rheedea Vol. 20 (1) 59-70 2010.

---------- Forwarded message ----------
From: surajit koley <surajitno...@gmail.com>

--

With regards,
J.M.Garg

'Creating awareness of Indian Flora & Fauna'

Winner of Wipro-NFS Sparrow Awards 2014 for efloraofindia. 

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[J.M. Garg]

---------- Forwarded message ---------
From: surajit koley <surajitno...@gmail.com>

Date: Fri 17 Aug, 2018, 9:18 PM
Subject: Re: [efloraofindia:119505] Re: Ludwigia prostrata from Hooghly
To: J.M. Garg <jmg...@gmail.com>

Thank you Sir for the corrected ID, with relevant reference.

Regards

Surajit Koley