id please Ceratophyllum sp.

[shubhada nikharge]

Hi,
I am posting these pics again to reconfirm the species of Ceratophyllum.
the pics of Ceratophyllum have been posted on this group few moths ago and identified by Tanay ji..
The pics are taken at Anshi WLS, Karnataka in April 2010.
Cheers,
Shubhada


"I am only one; but still I am one. I cannot do everything, but still I can do something; I will not refuse to do the something I can do."

[tanay bose]

Dear Shubhada Ji,
This is Ceratophyllum demersum L. from the family Ceratophyllaceae commonly known as Rigid Hornwort or Common Hornwort.
Same as Rashida Ji's Plant if I have provided another ID it should nullified and kindly excuse for the mistake.

Regards
Tanay

--
Tanay Bose
+91(033) 25550676 (Resi)
9830439691(Mobile)

[Pankaj Kumar]

Just a vague thought of mine. Can you please smell the young leaves
and let us know if it has a pleasant smell, just in case it does, then
this may be Limnophyla....but not so sure....
Pankaj

[Vijayasankar]

I too think it is Limnophila, probably L. heterophylla.

With regards

Vijayasankar

[Rashida Atthar]

The last ID by Avinash ji on 4 May '10 for my posts of the same plant was  Limnophila heterophylla. Shubhada has only mentioned Tanay's response. However, my query on the distinguishing characteristic remained unanswered.  

regards,

Rashida.

[Gurcharan Singh]

Rashida ji

Ceratophyllum does not have heterophyllous leaves. These photographs are unique to show both submerged finely dissected leaves and simple entire whorled emergent leaves so characteristic of L. heterophylla. Also the flowers are typical dicot. You can find both single axillary long pedicellate flower as well as terminal group of flowers, true for L. hererophylla.

-- 
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/ 

[Divakar]

As the leaves in this plant appears to be entire,opposite above and
whorled below, the plant could be Limnophylla indica (L.) Druce
(Leaf margins crenate to serrate in L. heterophylla whereas it is
entire or whorled & dissected in L. indica)
Regards
-Divakar

On Sep 8, 10:16 pm, Gurcharan Singh <singh...@gmail.com> wrote:
> Rashida ji
> Ceratophyllum does not have heterophyllous leaves. These photographs are
> unique to show both submerged finely dissected leaves and simple entire
> whorled emergent leaves so characteristic of L. heterophylla. Also the
> flowers are typical dicot. You can find both single axillary long
> pedicellate flower as well as terminal group of flowers, true for L.
> hererophylla.
>
> --
> Dr. Gurcharan Singh
> Retired  Associate Professor
> SGTB Khalsa College, University of Delhi, Delhi-110007
> Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.

> Phone: 011-25518297  Mob: 9810359089http://people.du.ac.in/~singhg45/

>
> On Sat, Jul 31, 2010 at 4:13 AM, Rashida Atthar <atthar.rash...@gmail.com>wrote:
>
>
>
> > The last ID by Avinash ji on 4 May '10 for my posts of the same plant was
> >  Limnophila heterophylla. Shubhada has only mentioned Tanay's response.
> > However, my query on the distinguishing characteristic remained unanswered.
>
> > regards,
> > Rashida.
>

> > On Sat, Jul 31, 2010 at 5:47 AM, Vijayasankar <vijay.botan...@gmail.com>wrote:
>
> >> I too think it is Limnophila, probably L. heterophylla.
>
> >> With regards
>
> >> Vijayasankar
>

> >> On Fri, Jul 30, 2010 at 9:34 AM, Pankaj Kumar <sahanipan...@gmail.com>wrote:
>
> >>> Just a vague thought of mine. Can you please smell the young leaves
> >>> and let us know if it has a pleasant smell, just in case it does, then
> >>> this may be Limnophyla....but not so sure....

> >>> Pankaj- Hide quoted text -
>
> - Show quoted text -

[Gurcharan Singh]

Divakar ji

It is Limnophila (not Limnophylla), Limno= Fresh water, phila=loving; a water loving plant. The leaves of L. heterophylla are undivided and slightly crenate-serrate (which can be seen n the specimen; my statement about entire leaves was obviously wrong). L. indica has pinnately divided aerial leaves, upper ones opposite and crenate as per eFlora of China link:

http://www.efloras.org/object_page.aspx?object_id=3502&flora_id=2

http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200020698

Obviously the Shubadha ji's plant is L. heterophylla

 

-- 
Dr. Gurcharan Singh
Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297  Mob: 9810359089
http://people.du.ac.in/~singhg45/ 

[Divakar]

Sorry for the error,
It should be Limnophila.
I agree withn you.
Limnophila indica leaf blades have 3-7 parallel nerves which is not
claer in the present specimen.

Thanking you,
-Divakar

On Sep 9, 10:36 am, Gurcharan Singh <singh...@gmail.com> wrote:
> Divakar ji
> It is Limnophila (not Limnophylla), Limno= Fresh water, phila=loving; a
> water loving plant. The leaves of L. heterophylla are undivided and slightly
> crenate-serrate (which can be seen n the specimen; my statement about entire
> leaves was obviously wrong). L. indica has pinnately divided aerial leaves,
> upper ones opposite and crenate as per eFlora of China link:
>
> http://www.efloras.org/object_page.aspx?object_id=3502&flora_id=2
>
> http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200020698
>
> Obviously the Shubadha ji's plant is L. heterophylla
>
> --
> Dr. Gurcharan Singh
> Retired  Associate Professor
> SGTB Khalsa College, University of Delhi, Delhi-110007
> Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
> Phone: 011-25518297  Mob: 9810359089http://people.du.ac.in/~singhg45/

> <http://www.efloras.org/object_page.aspx?object_id=3502&flora_id=2>

> > > - Show quoted text -- Hide quoted text -

[Rashida Atthar]

Sorry for my delayed response Dr. Gurcharan ji. Thank you very much sir for the explanation of why it is Limnophila and not Ceratophyllum. So Avinash ji was correct after all! Thanks to all for the additional inputs. 

regards,

Rashida.