Re: [efloraofindia:88261] ludwigia species mm1 16102011

[Mohina Macker]

Got some some more photographs yesterday

the plant seems glabrous

without a hint of purple

regards

mohina macker

On Mon, Oct 17, 2011 at 6:25 PM, Giby Kuriakose <giby.ku...@gmail.com> wrote:

Dear Satish ji,

As per the key provided in this link (http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=119063) and the description and illustrations therein shows that the stem leaf margin of L. octovalvis is hairy and the same for L. perennis is glabrous. 

In this pictures, though it is not very clear, seems that the plant is glabrous.  

Mohima ji please check whether the plant is hairy or not. 

Regards,

Giby

 

On 17 October 2011 18:15, Satish Phadke <drsmp...@gmail.com> wrote:

It is interesting
Whether it is Ludwigia octovalvis or Ludwigia perennis? Only significant difference between the two what I noticed from the literature is that the small petiole is winged in L.perennis.
Mohina ji Can you check this in your plant as it is not appreciated in the given picture.
Otherwise the plant looks close to Ludwigia octovalvis to me
http://groups.google.com/group/indiantreepix/browse_thread/thread/2ea31303c443af06/a3f3b57a741cdbc4?hl=en&lnk=gst&q=ludwigia#a3f3b57a741cdbc4

On Sun, Oct 16, 2011 at 6:37 PM, Mohina Macker <mohina...@gmail.com> wrote:

very small flowers

no bigger than 3 or 4 mm

would very much appreciate an id

regards

mohina macker

--
Dr Satish Phadke

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

[Dr Pankaj Kumar]

May be Ludwigia alternifolia!
Pankaj





On Oct 20, 12:47 pm, Mohina Macker <mohinamac...@gmail.com> wrote:
>m Got some some more photographs yesterday

> the plant seems glabrous
> without a hint of purple
> regards
> mohina macker
>

> On Mon, Oct 17, 2011 at 6:25 PM, Giby Kuriakose <giby.kuriak...@gmail.com>wrote:
>
>
>
>
>
>
>
> > Dear Satish ji,
>
> > As per the key provided in this link (
> >http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=119063) and
> > the description and illustrations therein shows that the stem leaf margin of

> > *L. octovalvis *is hairy and the same for *L. perennis* is glabrous.

> > In this pictures, though it is not very clear, seems that the plant
> > is glabrous.
> > Mohima ji please check whether the plant is hairy or not.
>
> > Regards,
> > Giby
>

> > On 17 October 2011 18:15, Satish Phadke <drsmpha...@gmail.com> wrote:
>
> >> It is interesting

> >> Whether it is *Ludwigia octovalvis* or *Ludwigia perennis*? Only

> >> significant difference between the two what I noticed from the literature is

> >> that the small petiole is winged in *L.perennis*.

> >> Mohina ji Can you check this in your plant as it is not appreciated in the
> >> given picture.

> >> Otherwise the plant looks close to *Ludwigia octovalvis* to me
>
> >>http://groups.google.com/group/indiantreepix/browse_thread/thread/2ea...

>
> >> On Sun, Oct 16, 2011 at 6:37 PM, Mohina Macker <mohinamac...@gmail.com>wrote:
>
> >>> very small flowers
> >>> no bigger than 3 or 4 mm
> >>> would very much appreciate an id
> >>> regards
> >>> mohina macker
>
> >> --
> >> Dr Satish Phadke
>
> > --
> > GIBY KURIAKOSE PhD
> > Ashoka Trust for Research in Ecology and the Environment (ATREE),
> > Royal Enclave,
> > Jakkur Post, Srirampura
> > Bangalore- 560064
> > India
> > Phone - +91 9448714856 (Mobile)
> > visit my pictures @http://www.flickr.com/photos/giby
>
>
>

>  DSCN0734aa.jpg
> 155KViewDownload
>
>  DSCN0733 aa.jpg
> 162KViewDownload

[Giby Kuriakose]

I still think that this is L. perennis. 

Regards,

Giby

[Satish Phadke]

I am not aware of the two species in detail. Attaching my pictures of the plant seen near water body near Kaas Plateau which was IDed as L.octovalvis for comparison/Review again.

--
Dr Satish Phadke

[Giby Kuriakose]

Is this a hairy plant or a glabrus one? Further in L. octovalvis the sepels are 0.5-1.2cm long petals are 0.6-1.8cm long whereas, in L. perennis it is less than 0.5 for both sepals and petals 

Please refer this http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=119063 

and http://www.efloras.org/florataxon.aspx?flora_id=100&taxon_id=119063

If this is a glabrous plant with smaller flowers, I think this too is L. perennis. 

[Satish Phadke]

Thanks Giby ji
I think you are right. That was the reason I posted the plant again.
This definitely is a glabrous plant but size wise I think it is closer to L.octovalvis.
Anyway can't confirm now. Thanks for the analysis which would be useful when I might encounter similar plant again

--
Dr Satish Phadke

[Mohina Macker]

Dear Giby ji and Satish ji

the flowers of this ludwigia were tiny, no mare thean 5mm at the maximum, 

so that seems to rule out L.octovalvis

[Giby Kuriakose]

Please refer the attached file.  

If the flowers were so small I am sure that this is L. perennis. 

One more important point that if the capsule is angular (4 angled) then the plant would be L. prostrata flowers are almost equal sized in these 2 species.   

Regards,

Giby

[Samir Mehta]

Giby ji,

Many thanks for the article - never knew of L.decurrens, among a host
of other things!!

Would I be correct in assuming that a erect plant 1.5m, flower >2cms,
leaves glabrous (also stem), sepals not hairy is L.deurrens? saw this
plant at north end of sgnp very recently.

Regards,

Samir

On Oct 22, 12:03 pm, Giby Kuriakose <giby.kuriak...@gmail.com> wrote:
> Please refer the attached file.

> If the flowers were so small I am sure that this is *L. perennis. *

> One more important point that if the capsule is angular (4 angled) then the

> plant would be *L. prostrata* flowers are almost equal sized in these 2
> species. *  *

>
> Regards,
> Giby
>
> On 22 October 2011 11:44, Mohina Macker <mohinamacker @gmail.com> wrote:
>
>
>
>
>
>
>
>
>
> > Dear Giby ji and Satish ji
> > the flowers of this ludwigia were tiny, no mare thean 5mm at the maximum,
> > so that seems to rule out L.octovalvis
>

> > On Fri, Oct 21, 2011 at 10:18 PM, Satish Phadke <drsmpha...@gmail.com>wrote:
>
> >> Thanks Giby ji
> >> I think you are right. That was the reason I posted the plant again.
> >> This definitely is a glabrous plant but size wise I think it is closer to

> >> * L.octovalvis.*

> >> Anyway can't confirm now. Thanks for the analysis which would be useful
> >> when I might encounter similar plant again
>

> >> On Fri, Oct 21, 2011 at 9:44 PM, Giby Kuriakose <giby.kuriak...@gmail.com

> >> > wrote:
>
> >>> Is this a hairy plant or a glabrus one? Further in L. octovalvis the
> >>> sepels are 0.5-1.2cm long petals are 0.6-1.8cm long whereas, in L. perennis
> >>> it is less than 0.5 for both sepals and petals
> >>> Please refer this
> >>>http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=119063

> >>> andhttp://www.efloras.org/florataxon.aspx?flora_id=100&taxon_id=119063
>
> >>> If this is a glabrous plant with smaller flowers, I think this too is *L.
> >>> perennis. *
>
> >>> Regards,
> >>> Giby

>
> >>> On 21 October 2011 21:32, Satish Phadke <drsmpha...@gmail.com> wrote:
>
> >>>> I am not aware of the two species in detail. Attaching my pictures of

> >>>> the plant seen near water body near Kaas Plateau which was IDed as*L.octovalvis
> >>>> * for comparison/Review again.

>
> >>>> On Fri, Oct 21, 2011 at 7:51 PM, Giby Kuriakose <

> >>>> giby.kuriak...@gmail.com> wrote:
>
> >>>>> I still think that this is *L. perennis. *
> >>>>> *
> >>>>> *
> >>>>> *
> >>>>> *
> >>>>> Regards,
> >>>>> Giby

>
> >>>>> On 20 October 2011 10:17, Mohina Macker <mohinamac...@gmail.com>wrote:
>
> >>>>>> Got some some more photographs yesterday
> >>>>>> the plant seems glabrous
> >>>>>> without a hint of purple
> >>>>>> regards
> >>>>>> mohina macker
>
> >>>>>> On Mon, Oct 17, 2011 at 6:25 PM, Giby Kuriakose <
> >>>>>> giby.kuriak...@gmail.com> wrote:
>
> >>>>>>> Dear Satish ji,
>
> >>>>>>> As per the key provided in this link (
> >>>>>>>http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=119063) and
> >>>>>>> the description and illustrations therein shows that the stem leaf margin of

> >>>>>>> *L. octovalvis *is hairy and the same for *L. perennis* is

> >>>>>>> glabrous.
> >>>>>>> In this pictures, though it is not very clear, seems that the plant
> >>>>>>> is glabrous.
> >>>>>>> Mohima ji please check whether the plant is hairy or not.
>
> >>>>>>> Regards,
> >>>>>>> Giby
>

> >>>>>>> On 17 October 2011 18:15, Satish Phadke <drsmpha...@gmail.com>wrote:
>
> >>>>>>>> It is interesting

> >>>>>>>> Whether it is *Ludwigia octovalvis* or *Ludwigia perennis*? Only

> >>>>>>>> significant difference between the two what I noticed from the literature is

> >>>>>>>> that the small petiole is winged in *L.perennis*.

> >>>>>>>> Mohina ji Can you check this in your plant as it is not appreciated
> >>>>>>>> in the given picture.

> >>>>>>>> Otherwise the plant looks close to *Ludwigia octovalvis* to me
>
> >>>>>>>>http://groups.google.com/group/indiantreepix/browse_thread/thread/2ea...
>

> >>>>>>>> On Sun, Oct 16, 2011 at 6:37 PM, Mohina Macker <
> >>>>>>>> mohinamac...@gmail.com> wrote:
>
> >>>>>>>>> very small flowers
> >>>>>>>>> no bigger than 3 or 4 mm
> >>>>>>>>> would very much appreciate an id
> >>>>>>>>> regards
> >>>>>>>>> mohina macker
>
> >>>>>>>> --
> >>>>>>>> Dr Satish Phadke
>
> >>>>>>> --
> >>>>>>> GIBY KURIAKOSE PhD
> >>>>>>> Ashoka Trust for Research in Ecology and the Environment (ATREE),
> >>>>>>> Royal Enclave,
> >>>>>>> Jakkur Post, Srirampura
> >>>>>>> Bangalore- 560064
> >>>>>>> India
> >>>>>>> Phone - +91 9448714856 (Mobile)

> >>>>>>> visit my pictures @http://www.flickr.com/photos/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 (Mobile)

> >>>>> visit my pictures @http://www.flickr.com/photos/giby

>
> >>>> --
> >>>> Dr Satish Phadke
>
> >>> --
> >>> GIBY KURIAKOSE PhD
> >>> Ashoka Trust for Research in Ecology and the Environment (ATREE),
> >>> Royal Enclave,
> >>> Jakkur Post, Srirampura
> >>> Bangalore- 560064
> >>> India
> >>> Phone - +91 9448714856 (Mobile)

> >>> visit my pictures @http://www.flickr.com/photos/giby

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

>  Rheedea20_59-70.pdf
> 1521KViewDownload

[Samir Mehta]

Many thanks for the post Mohina,

[Giby Kuriakose]

When you run the key, .....

........ 

4. stem woody at base, stamens 8....; 5  (if this is the case it can be L decurrens) 

4. Stem herbaceous, stamens 4....  6 (if this is the case mostly L perennis)

Here in Sathish jis pictures I think the number of stamens are 4 

Hence I say it is L. perennis

Satish ji or Mohina ji, Please clarify by using the key i Rheedea article. 

Regards