Hi, Lalithamba ji.
I think keys are based on the the fruit/ capsule.

For *Pterosprmum suberifolium *(L.) Lam.*, *BSI Flora of India
<http://efloraindia.nic.in/efloraindia/taxonList.action?id=3407&type=4> (1993)
say *Capsules 4 - 6 x 2 - 2.5 cm ovoid-oblong or ovoid, terete tapering at
both ends, 4 - 5-valved, creamy tomentose outside*, while An Excursion
Flora of Central Tamilnadu, India
<http://books.google.co.in/books?id=umMFT6tKtrkC&pg=PA49&dq=Pterospermum+%2B+india&hl=en&sa=X&ei=jSfpUvr5FIWIrQeQ-YGACQ&ved=0CE8Q6AEwBw#v=onepage&q=Pterospermum%20%2B%20india&f=false>
By K. M. Matthew (1995) says *ovoid, obtusely angled, whitesh.*
For *Pterospermum xylocarpum *(Gaertn.) Santapau & Wagh,  BSI Flora of India
<http://efloraindia.nic.in/efloraindia/taxonList.action?id=3409&type=4> (1993)
say *Capsules 5 - 7.5 x 2 - 3.6 cm, oblong to pyriform, narrowed at both
ends, obtusely 5-angled, rusty stellate-tomentose*, while An Excursion
Flora of Central Tamilnadu, India
<http://books.google.co.in/books?id=umMFT6tKtrkC&pg=PA49&dq=Pterospermum+%2B+india&hl=en&sa=X&ei=jSfpUvr5FIWIrQeQ-YGACQ&ved=0CE8Q6AEwBw#v=onepage&q=Pterospermum%20%2B%20india&f=false>
By K. M. Matthew (1995) says *pyriform, acutely angled, rusty.*

I think based on this, we should take this post as *Pterospermum
xylocarpum *(Gaertn.) Santapau & Wagh.

On 7 January 2018 at 09:59, J.M. Garg <[email protected]> wrote:

> Reply from another thread:
> "Pictures 2859 to 2872 the set with smaller flowers; smooth ovate podded
> tree is perfect *Pterospermum suberifolium *(As per Mathew's Flora of TN
> and Carnatac , and BSI
> A.Lalithamba"
>
> ---------- Forwarded message ----------
> From: Anurag Sharma <[email protected]>
> Date: 21 May 2014 at 11:30
> Subject: [efloraofindia:189000] Tree for ID (vi)
> To: [email protected]
>
>
> Bangalore
> 21st May
>
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With regards,
J.M.Garg

'Creating awareness of Indian Flora & Fauna'
<http://en.wikipedia.org/wiki/User:Jmgarg1>

Winner of Wipro-NFS Sparrow Awards 2014 for efloraofindia
<https://sites.google.com/site/efloraofindia/award-for-efloraofindia>.

For identification, learning, discussion & documentation of Indian Flora,
please visit/ join our Efloraofindia Google e-group
<https://groups.google.com/forum/#!forum/indiantreepix> (largest in the
world- around 2800 members & 2,65,000 messages on 31.3.17) or Efloraofindia
website <https://sites.google.com/site/efloraofindia/> (with a species
database of more than 12,000 species & 2,50,000 images).

The whole world uses my Image Resource
<http://commons.wikimedia.org/wiki/Category:J.M.Garg> of more than a
thousand species & eight thousand images of Birds, Butterflies, Plants etc.
(arranged alphabetically & place-wise). You can also use them for free as
per Creative Commons license attached with each image.

Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of
India'.

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