MS/July/2021/3 - ID of the Cordia dpecies

[M Swamy]

Dear members,

I am attaching herewith a photo (combo) received from a friend in Chennai.  For me it looks like Cordia myxa  looking at the leaves and the size of the tree. However on checking the efloraofindia   on this species it is merged with the C.dichotoma.

efi page on Cordia dichotoma   .  Extract  submitted  for ready reference :

As per Singh ji:

"Cordia myxa L., and Cordia dichotoma Forst as such are distinct species

     The problem arose that the name C. myxa was also used for plants from India, which is same as C. obliqua Willd., a name adopted in Flora of British India. This plant is now correctly known C. dichotoma Forst.
The plant should be cited as:
Cordia dichotoma Forst. syn: Cordia obliqua Willd.; C. myxa auct. (non L.); C. indica Lam.; C. latifolia Roxb.
    Cordia myxa L. is a distinct plant now understood to be confined to Asia minor and Egypt "

  According to Pradip Krishen's new book 'Jungle Trees of Central India' [which is fairly well researched and presented] : 

- C.myxa is the accepted name and C.dichotoma is a synonym

My queries :

(1)  Which is the correct form of accepted name and which is the synonym ?

(2)  Suggest the correct citation for the picture I have posted.

Please clarify .

[Mahadeswara]

May I request the comments from  the  professional taxonomists and Garg ji as well?

[J.M. Garg]

Thanks, Mahadeswara ji.

I think Singh ji is correct in the matter.

POWO gives Cordia dichotoma G. Forster as the accepted name as is Catalogue of Life also.

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[J.M. Garg]

---------- Forwarded message ---------
From: M Swamy <swamy...@gmail.com>

Date: Mon, 13 Jul 2020 at 21:36
Subject: Re: [efloraofindia:354345] MS/July/2021/3 - ID of the Cordia dpecies
To: J.M. Garg <jmg...@gmail.com>

Thanks Garg ji for your all out efforts to nail the proper ID. 

[Gurcharan Singh]

We can't just pick up accepted name and synonym without authority name. No doubt Cordia myxa L. and Cordia dichotoma G. Forst are distinct species according to Kew Database (the most authentic at present), Catalogue of Life and World Flora Online.  

       As understood now both occur in India, C. myxa differentiated by broader leaves (6-12 cm long, 4-8 cm broad), rounded to subcordate at base, drupe usually 20 mm long. C. dichotoma, on the other hand has smaller and narrower leaves (5-8 cm long, less than 3 cm broad, with cuneate base, fruit less than 15 mm. 

      You may check up details, but shape of leaves suggests C. myxa.

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Mob: 9810359089

https://sing96.wixsite.com/mysite-1

[J.M. Garg]

Thanks, Singh ji,
If that is the case, may I request you to pl. look at efi posts in our database, which are all in the same page at C.dichotoma.

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With regards,
J. M. Garg

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[Gurcharan Singh]

Thanks Garg ji and Swamy ji

The fact that both are called and used as Lasura in India has created lot of confusion on the internet, even Wikipedia, even Flowers of India. We have to proceed carefully. I think this looks to be typical C. dichotoma:

http://tropical.theferns.info/image.php?id=Cordia+dichotoma 

Dr. Gurcharan Singh

Retired  Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Mob: 9810359089

https://sing96.wixsite.com/mysite-1

On Tue, Jul 14, 2020 at 8:59 AM M Swamy <swamy...@gmail.com> wrote:

Dear sir,

Thank you very much for your   clarification, which is very convincing..  Very useful .

Best regards,

Dr.Mahadeswara swamy 

[M Swamy]

I agree with you sir.

Best Regards,

[J.M. Garg]

Hi, Mahadeswara ji,

May I request you to pl. upload image of the page of Pradip Krishan's book. 

On Tue, 14 Jul 2020 at 11:09, M Swamy <swamy...@gmail.com> wrote:

I agree with you sir.

Best Regards,

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With regards,
J.M.Garg

[J.M. Garg]

I think then it is of no use.

---------- Forwarded message ---------
From: M Swamy <swamy...@gmail.com>

Date: Mon, 20 Jul 2020 at 12:16
Subject: Re: [efloraofindia:354345] MS/July/2021/3 - ID of the Cordia dpecies
To: J.M. Garg <jmg...@gmail.com>

Garg ji,

https://books.google.co.in/books/about/Jungle_Trees_of_Central_India.html?id=Bvl5oAEACAAJ&source=kp_book_description&redir_esc=y

Please check the above link.   Nevertheless, I am unable to get into the page  now..

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With regards,
J.M.Garg