On Feb 21, 7:59 am, Dinesh Valke <dinesh.va...@gmail.com> wrote:
> ... simply guessing: some species of Calystegia
> ...http://www.exot-nutz-zier.de/impressionen_convolvulaceae_ca.htm
> Regards.
> Dinesh
>
> On Mon, Feb 21, 2011 at 6:16 PM, Gurcharan Singh <singh...@gmail.com> wrote:
> > Resurfacing again for ID
>
> > --
> > 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: Aarti S. Khale <aarti.kh...@gmail.com>
> > Date: Fri, Jan 28, 2011 at 5:34 PM
> > Subject: Ipomoea for ID : 280111 : AK-2
> > To: efloraofindia <indiantreepix@googlegroups.com>, Gurcharan Singh <
> > singh...@gmail.com>
> > Cc: androl <and...@optonline.net>
>
> > Again taken at Muscat,Oman.
> > First picture taken in May,06 and the other in Feb,07.These are very
> > common here.
> > Aarti
Hello,
Dinesh ji has a worthy guess.
My impression is that the plant in question is likely in the
genus Convolvulus as the stigma is within the structural type for a
Convolvulus and the corolla with a relatively short tube and wide
relatively flat limb is much more typical of Convolvulus than a
Calystegia , although some overlap of corolla features between
Calystegia and Convolvulus does exist...
The majority of Calystegia species are native to California with
relatively few species in the Old World, whereas by comparison there
are many species of Convolvulus in the Old World.
The Convolvulus are known to cross species naturally as compared to
Ipomoea which rarely ever crosses the species barrier naturally.
There are some botanists who have proposed that all Convolvulus
represent geographic variations of a single species with no absolute
division , because inter-grades of Convolvulus species are to be found
inhabiting what is proposed to be the geographic limits for a
particular species; inter-grades of Convolvulus species blend in with
the 'different' neighboring Convolvulus species / sharing features
with geographic neighbors of supposedly 'different' species...therefor
Convolvulus has so many subspecies , subsubspecies , varieties and
forma...likely ad infinitum...
Perhaps the wrong time for me to share regarding such a departure from
the traditional / accepted classifications...
The plant is some Convolvulus but more than that I can not offer at
this point.
regards,
Ron
