Thanks a lot, Singh ji.

On 12 August 2018 at 07:11, Gurcharan Singh <singh...@gmail.com> wrote:

> S. erianthum does not have lobed leaves, sepals are much smaller, and
> ovary densely hairy.
>
>
> 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
> http://www.gurcharanfamily.com/
>
> On Sat, Aug 11, 2018 at 10:56 PM, Gurcharan Singh <singh...@gmail.com>
> wrote:
>
>> The three species have been much confused, and still confused at various
>> websites. I have photographed all three, and from various sources this is
>> conclusion:
>> 1. Solanum hispidum would commonly have blue flowers with larger flowers
>> which are blue in colour with spreading much broader corolla lobes.
>> https://en.wikipedia.org/wiki/List_of_Solanum_species#/media
>> /File:Solanum_hispidum_3.jpg
>>
>> 2. S. chrysotrichum has white flowers large to very large leaves
>> (usually 9-35 cm long) with several to numerous (seven to thirteen)
>> moderately deep to very deep lobes. Its relatively large white flowers
>> (30-40 mm across) have relatively large sepals (7-10 mm long). The dense
>> star-shaped (i.e. stellate) hairs on its new growth are reddish in colour.
>> https://keyserver.lucidcentral.org/weeds/data/media/Html/
>> solanum_chrysotrichum.htm
>>
>> 3.  Solanum torvum also with white flowers  has moderately large
>> leaves (usually 5-21 cm long) with several (about seven) slight to
>> moderately deep lobes. Its relatively small white flowers (up to 25 mm
>> across) have small sepals (3-4 mm long). The dense star-shaped (i.e.
>> stellate) hairs on its new growth are whitish or yellowish in colour.
>> https://en.wikipedia.org/wiki/List_of_Solanum_species#/media
>> /File:Solanum_torvum_3.jpg
>>
>> Here are my images of three species
>>
>> 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
>> http://www.gurcharanfamily.com/
>>
>> On Sat, Aug 11, 2018 at 9:34 PM, J.M. Garg <jmga...@gmail.com> wrote:
>>
>>> Solanum robustum
>>> <https://sites.google.com/site/efloraofindia/species/m---z/s/solanaceae/solanum/solanum-robustum>
>>>  as
>>> per images and details herein and as per another thread
>>> <https://groups.google.com/forum/#!topic/indiantreepix/7LVmZA48pmg>.
>>>
>>> ---------- Forwarded message ----------
>>> From: J.M. Garg <jmga...@gmail.com>
>>> Date: 19 January 2014 at 10:51
>>> Subject: Fwd: [efloraofindia:177934] Nilgiris :: Solanum weed for
>>> identification :: 211213MK003
>>> To: efloraofindia <indiantreepix@googlegroups.com>
>>> Cc: Vijayasankar Raman <vijay.botan...@gmail.com>, Dr Santhosh Kumar <
>>> drsanthosh1...@gmail.com>, Gurcharan Singh <singh...@gmail.com>, Muthu
>>> Karthick <nmk....@gmail.com>, "D.S Rawat" <drdsrawat.alpin...@gmail.com>
>>>
>>>
>>> Forwarding again for Id assistance please.
>>>
>>> Some earlier relevant feedback:
>>> I hope Solanum torvum- Dr. Gurcharan Singh
>>>
>>> *I remember collecting similar plant in Bangalore and identifying it as
>>> Solanum hispidum. There is confusion over the nomenclature of this group of
>>> species: S. hispidum - S. asperolanatum - S. chrysotrichum. The posted
>>> plant could turn to be a species *
>>> I remember collecting similar plant in Bangalore and identifying it as
>>> Solanum hispidum.
>>> There is confusion over the nomenclature of this group of species: S.
>>> hispidum - S. asperolanatum - S. chrysotrichum.
>>> The posted plant could turn to be a species different from the above.
>>> But to me it doesn't look like S. torvum, mainly due to the reddish brown
>>> glandular hairs (?) on young parts and fruits, winged stems, nature of
>>> leaves and fruits etc. More pictures and details may help confirm the
>>> species.
>>> Regards
>>> Vijayasankar
>>>
>>> *I too collected this species and still remained unidentified *--SANTHOSH
>>>
>>>
>>> That is interesting. What a coincidence. I photographed this plant last
>>> year growing along roadside in Pathankot near J & K-Punjab border. I had
>>> identified it as S. chrysotrichum, and came to know that it has often been
>>> confused and reported as S. hispidum. I was even prepared to incorporate
>>> this in our website key, but deferred it to check whether species has been
>>> reported from India or not. I think typical specimens of S. hispidum have
>>> blue flowers.
>>> *No wonder S. torvum, S. hispidum and S. chrysotrichum form a close
>>> species complex. *
>>> Dr. Gurcharan Singh
>>> A link to show how often S. chrysotrichum has been confused with S.
>>> hispidum. Santosh ji and Vijayasankar ji, may we try to find real
>>> differences between the two species. Both I find (and I had seen this in
>>> Pathankot plant) are much larger and taller than S. torvum, S. hispidum
>>> being the largest of the three.
>>> http://www.flora.sa.gov.au/efsa/lucid/Solanaceae/Solanum%20s
>>> pecies/key/Australian%20Solanum%20species/Media/Html/Solanum
>>> _chrysotrichum_(prev._S._hispidum).htm
>>> Dr. Gurcharan Singh
>>>
>>> One more link
>>> http://keyserver.lucidcentral.org/weeds/data/03030800-0b07-4
>>> 90a-8d04-0605030c0f01/media/Html/Solanum_chrysotrichum.htm
>>> Dr. Gurcharan Singh
>>> Any one having access to JSTOR may help
>>> http://www.jstor.org/stable/25129967?seq=2
>>> Dr. Gurcharan Singh
>>>
>>> Solanum torvum (=S.erianthum) have entire lanceolate leaves and plant do
>>> not have spines on any parts. Seems more closer to S.hispidum. BUT as
>>> Vijayshankar Ji has pointed out nomeclature is ambiguous.
>>> DSRawat Pantnagar
>>> Solanum erianthum D. Don and S. torvum Sw. are totally different
>>> species, former without prickles and latter with distinct broad based
>>> prickles
>>> http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=130618
>>> S. torvum is a smaller shrub barely taller than 2 m, whereas S.
>>> erianthum is frequently a tree.
>>> Dr. Gurcharan Singh
>>>
>>> Now I understand that the plant I referred here is *S.erianthum*. I
>>> somehow (wrongly) considered S.erianthum a synonym of S.torvum.
>>> Thank you Sir for correction.
>>> DSRawat Pantnagar
>>>
>>>
>>> ---------- Forwarded message ----------
>>> From: Muthu Karthick <nmk....@gmail.com>
>>> Date: 21 December 2013 13:24
>>> Subject: [efloraofindia:177934] Nilgiris :: Solanum weed for
>>> identification :: 211213MK003
>>> To: efloraofindia <indiantreepix@googlegroups.com>
>>>
>>>
>>> Dear all,
>>>
>>> Please help me in identifying this large thorny shrub from *Solanum*.
>>> Leaf was as large as 25 cm long,
>>>
>>> Habitat: roadside weed
>>> Date: 12 Dec 2013
>>> Place: Kothagiri town,
>>> Alt.: c. 2000 m asl
>>> --
>>> Muthu Karthick, N
>>> Care Earth Trust
>>> #15, second main road,
>>> <https://maps.google.com/?q=15,+second+main+road,+Thillai+ganga+nagar,+%0D%0AChennai+-+600+061&entry=gmail&source=g>
>>> Thillai ganga nagar,
>>> <https://maps.google.com/?q=15,+second+main+road,+Thillai+ganga+nagar,+%0D%0AChennai+-+600+061&entry=gmail&source=g>
>>> Chennai - 600 061
>>> Mob: 0091 96268 33911
>>>
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>>>
>>> 'Creating awareness of Indian Flora & Fauna'
>>> <http://en.wikipedia.org/wiki/User:Jmgarg1>
>>>
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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- more than 2975 members & 3,00,000 messages on 25.7.18) or Efloraofindia
website <https://sites.google.com/site/efloraofindia/> (with a species
database of more than 12,000 species & 3,00,000 images of which 1,00,000
are directly displayed).

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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