Pergularia sp.? Hooghly 19/9/12 SK

[surajit koley]

Sir,

I was very much confused when i noticed this climber twining a betel nut (Areca catechu L.) tree. I thought these are Dioscorea pentahylla L flowers, but later i realized that it is another climber intertwining the former one. I am sorry for the bad quality of the pictures.

Species : UNKNOWN

Habit & Habitat : wild climber on roadside, couldn't reach the plant to take measurements

Date : 19/912, 3.40 p.m.

Place : Garalgacha (Hooghly)

Any chance of Pergularia tomentosa L.?

Earlier group posts on Pergularia -

1. https://groups.google.com/d/topic/indiantreepix/rWZfDUWvWS0/discussion
   
2. https://groups.google.com/d/topic/indiantreepix/azaZhoOfniE/discussion
   
3. https://groups.google.com/d/topic/indiantreepix/jA2OIqxZJoU/discussion
   
4. https://groups.google.com/d/topic/indiantreepix/pkA2J8yCcz4/discussion
   
5. https://groups.google.com/d/topic/indiantreepix/kPY3NxQCYdA/discussion
   
6. https://groups.google.com/d/topic/indiantreepix/ThbqrIv1XzQ/discussion
   

Thank you & Regards,

surajit

[Vijayasankar]

It is a Tylophora sp., I think.

 

Regards 

 

Vijayasankar Raman
National Center for Natural Products Research
University of Mississippi

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[surajit koley]

Good morning/evening Vijayasankar Ji,

The images available in the net suggest that it is Tylophora sp., maybe T. indica.

Thank you very much,

Regards,

surajit

[surajitkoley]

Sir,

How one can identify a Tylophora species from a Pergularia species?

Regards,

surajit

[surajit koley]

Garg Sir,

As per key in Bengal Plants this is Tylophora asthmatica (L. f.) Wight & Arn.

Features are : long sepals, peduncles shorter than leaves, pedicels long ...etc. These features are not found in all the posts of eFI page - https://sites.google.com/site/efloraofindia/species/a---l/a/apocynaceae/tylophora/tylophora-indica

I thank Vijayasankar Ji again.

Thank you n regards

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