Winged stem?

Swagat

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Jan 4, 2010, 12:36:16 AM1/4/10

to indiantreepix

Dear all,

Is it 'Winged stem'?

What is the reason behind it?

Is it happens in all climbers or it happens only in some species?

This climber photographed at Mumbai University, Vidyanagari, Kalina, Mumbai.

Date- 03rd January 2010.

Thanks in advance.

Regards,

~Swagat
9223217568
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'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.' - Helen Keller

030110-Kalina-Swagat2.jpg

Yazdy Palia

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Jan 4, 2010, 1:40:57 AM1/4/10

to Swagat, indiantreepix

Dear Swagat ji,
I think this is common to all climbers. I can speak from experience of
black pepper. The climbers have off shoot branches that normally bear
the fruits. The fruit bearing shoots do not climb. They protrude to
the sides and develop dome branches which normally bear. In the case
of black pepper sometimes people grow these branches in pots and call
it bush pepper. One can easily have these potted bushes in the balcony
of any apartment. The shoots that normally climb do not bear.
Regards
Yazdy Palia.

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Aparna Watve

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Jan 4, 2010, 3:20:53 AM1/4/10

to Yazdy Palia, Swagat, indiantreepix

It is a Winged stem. The reasons will probably differ with the
species- and I dont know about this one. -is this some Dioscorea?
aparna

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Dr. Aparna Watve
Dr. Aparna Watve
Asha Appt, Shanti Nagar, Ekata Colony
Nr. BSNL tower, Akbar Ward,
Seoni.480661
tel: 07692-228115
mobile: (0)9755667710 and 9822597288 still works

R. Vijayasankar

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Jan 4, 2010, 4:01:49 AM1/4/10

to Aparna Watve, Yazdy Palia, Swagat, indiantreepix

This is Operculina turpethum (Convolvulaceae). I think, having wing in stems and petioles is perhaps to increase the surface area to maximize photosynthesis.

With regards

R. Vijayasankar
FRLHT, Bangalore

Swagat

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Jan 4, 2010, 4:24:15 AM1/4/10

to Aparna Watve, Yazdy Palia, indiantreepix

Yes, it is 'Operculina turpethum'

Thanks...

~Swagat

9223217568

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2010/1/4 Aparna Watve <aparna...@gmail.com>

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