Ron
It is nice to read detailed responses from you. It surely enriches our
knowledge.


-- 
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/

On Fri, Jan 28, 2011 at 11:35 AM, Ron_Convolvulaceae
<[email protected]>wrote:

>
>
> On Jan 25, 4:36 am, sheetal chaudhari <[email protected]> wrote:
> > *Ipomoea obscura*
> >
> > On Mon, Jan 24, 2011 at 4:27 PM, Gurcharan Singh <[email protected]>
> wrote:
> > > Forwarding again for Id confirmation or otherwise please.
> > > Some earlier relevant feedback:
> > > “This *seems to be I. marginata* but purple blotches on leaf are
> missing.
> > > Regards, Shrikant”
> >
> > > “It does looks like I. marginata except for  the purple blotches on the
> > > leaf  which i could not spot. If i remember correctly, Dinesh has also
> seen
> > > this some where in Thane region.
> > > regards
> > > Prashant”
> >
> > > “... yes, as said by Prashant, this plant grows in few locations in my
> > > neighbourhood. A feature of I. marginata that is normally seen is ...
> the
> > > flower is almost never solitary ... it is accompanied by at least
> another
> > > bud or two. Also this plant has its leaf and flower slightly larger to
> those
> > > of I. marginata.” from Dinesh ji.
> >
> > > "*Blotches on leaves, flower size or number of flowers are not the key
> > > characters for I. marginata*. Sepals obtuse, corolla hypocrateriform
> > > and seeds with long hairs are the key characters. In the present
> > > situation it looks to be I. marginata unless you find anything
> > > contarary. Regards, Shrikant"
> >
> > > --
> > > 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/
> >
> > > ---------- Forwarded message ----------
> > > From: Prashant awale <[email protected]>
> > >  Date: Wed, Nov 24, 2010 at 9:44 PM
> > > Subject: [efloraofindia:55039] Ipomoea?? 241110-PKA1
> > > To: indiantreepix <[email protected]>
> >
> > > Dear Friends,
> > > I had come across this climber at the outskirts of Mumbai.
> >
> > > Date/Time: 22-11-2010 / 08:50AM
> > > Location: Mumbai
> > > Habitat: Wild
> > > Plant Habit: Climber
> >
> > > Flower: Corolla: 2cm dia, Corolla tube 1cm, Pedicel:  8mm
> >
> > > Leaf: Petiole 2 cm, leaf lobed 5 cm long.
> >
> > > regards
> > > *Prashant*
>
> Hello,
>
>     I think the plant in question is likely to be Ipomoea marginata ,
> although I have some reservations.
>
> Ipomoea marginata may have hairs on the leaves and stems or it may be
> glabrous.
>
> The leaf shape may be cordate or can vary to an almost sagittate
> shape.
>
> The purple blotches are not a requirement and are likely a response to
> intense sunlight or other environmental factors.
>
> I do see a difference in the coloration in the tube and throat which I
> see as atypical in addition to a difference in the length and taper of
> the tube.
>
> The corolla measurements and tube characteristics are always important
> whether mentioned as a key characteristic by any author or not...some
> contemplation on this might be in order...
>
> I also notice that the petiole on this plant has some stoloniferous
> protrusions ( most visible in the 4th photo ) that are worthy of
> notice and are not often seen in photos Ipomoea marginata.
>
> Hope my observations may be of some value...
>
> regards,
>
> Ron
>
>
>
>
>

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