Forwarding again for any assistance in the matter please.

---------- Forwarded message ----------
From: Gurcharan Singh <[email protected]>
Date: 17 November 2013 17:42
Subject: [efloraofindia:175209] Relook at Status of Zehneria scabra in India
To: efloraofindia <[email protected]>, Nambiyath Balakrishnan <
[email protected]>, Tapas Chakrabarty <[email protected]>, Arun Pandey <
[email protected]>


The subject line in earlier post was inappropriate. I am correcting and
reposting it
Dear friends

We had good discussion in June, 2013 about status of Zehneria scabra in
India

https://groups.google.com/forum/#!searchin/indiantreepix/Status$20of$20Zehneria$20scabra$20in$20India/indiantreepix/7ejsnKgMcYI/ReqjsPs4CMAJ

I am including some relevant points for Tapas ji and Balakrishnan ji to
resolve this issue for us

I have been somewhat confused about the status of Zehneria scabra, uploaded
by several members including Dinesh ji, Prashant ji, and other members from
Kas

https://groups.google.com/forum/#!searchin/indiantreepix/Zehneria
/indiantreepix/cCGIzB2cd9A/lEwSmgknYegJ

https://groups.google.com/forum/#!searchin/indiantreepix/Zehneria
/indiantreepix/cCGIzB2cd9A/lEwSmgknYegJ

 These confusions are often confounded by the absence of author citations.
Strange as it may look Zehneria scabra (L.f.) Sond (Swedeish name *flikig
pilreva), * and Melothria scabra Naudin (Swedish name *djungelgurka), * are
two distinct species, often confused on net, as Melothria is an important
species with good looking mini watermelon like fruits, and none look
similar to our Kas plants.
and as such names Cape zehneria, South African Zehneria won't apply to our
Kas plant.

My doubts are supported by recent nomenclature update by Renner and Pandey
in 2013
They do not list Zehneria scabra for India, and Melothria perpusilla
(Blume) Cogn. is cited as synonym of Zehneriaperpusilla (Bl.) Bole and
Almeida.......but as per citation this species does not grown in India.
The other name often cited as synonym of Melothria perpusilla is correctly
Zehneria hookeriana (Wight & Arn) Arn, is endemic to Tamil Nadu
This leaves third name Zehneria maysorensis (Wight & Arn.) Arn. found in
Tamil Nadu, Karnataka and Maharashtra.
Could it be our plant from Kas???

I added this on October 21

Perhaps we may include in our discussion two species described in Fascicles
of Flora of India, No 11: Cucurbitaceae, by H. L. Chakravarty
Melothria perpusilla (Blume) Cogn.  (plant under our discussion for which
Zehneria scabra has been used in our uploads)
Melothria mucronata (Blume) Cogn.

I have gone through the description of two species but find little
differences
*M. mucronata* having 1-3 cm long petiole, broadly ovate leaves 5-8 cm, as
much broad, scabrous, corolla lobes ovate, acute, but important fruits are
ovoid-oblong 8-15 mm long, 6-9 mm broad, mucronate at apex.
var. *mucronata* with glabrous lower surface, female flower solitary and
var. *umbellata* Chakr. with lower surface hairy along nerves, female
flowers in axillary umbels........latter is now correctly considered as
* Zehneria maysorensis* (Wight & Arn.), Arn, and there is a suggestion that
var. mucronata may also belong here.

*M. perpusilla* having 2-5 cm long petiole, ovate-cordate leaves 5-9 cm
long, 4-7 cm broad, glabrous, corolla lobes ovate-oblong, subacute and
fruits globose, 8-10 mm in diam.
var. *perpusilla* with acute or mucronate leaf apex and var.
*subtruncata *Cogn.
with acuminate leaf apex, base subtruncate.

var. *perpusilla * is now correctly known as *Zehneria perpusilla (Blume) *Bole
& Almeida, but as reported in Renner and Pandey species does not grown in
India.
var. *subtruncata* Cogn. is now correctly known as *Zehneria bodinieri* (H.
Lév.) W.J.de <http://w.j.de/> Wilde & Duyfjes,

It must be mentioned that *Zehneria hookeriana* Arn. is endemic to Tamil
Nadu and very close to Zehneria bodinieri and I would be happy if some one
gives me diagnosis of this species and how to differentiate two .

So our collections having gone under Zehneria scabra in our websites may be
sought to be segregated into three species:Zehneria maysorensis with
beroadly ovate scabrous leaves, ovate corolla lobes and oblong 8-15 mm long
fruits, Z. bodinieri with ovate leaves longer than broad, glabrous leaves,
ovate-oblong corolla lobes and globose 8-10 mm fruits, and very similar Z.
hookeriana.

I hope Dinesh ji, Prashant ji who have great collection Western Ghats and
South India, and other experts especially Vijayasankar ji, and great expert
Prof. Renner should be able to sort this out.

I have a feeling that mixed upload by Dinesh ji from Kas and Mahabaleshwar
may have both these species, Mahableshwar photograph looking different from
Kas one.

https://groups.google.com/forum/#!searchin/indiantreepix/Zehneria
/indiantreepix/cCGIzB2cd9A/lEwSmgknYegJ






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://www.gurcharanfamily.com/
http://people.du.ac.in/~singhg45/

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