02122019EPT38

[Pandian Tensingh]

presenting for confirmation

Ocimum tenuiflorum (purple variety Krishna tulsi,black tulsi , Karum tulsi in Tamil)

Location : Chennai outskirts

Date :02.09.2019

Elevation : 23 mts.

Habitat :Urban home garden

Habit : Short herbal plant cultivated

Thanking you

E.P.Tensingh

[Mahadeswara]

For me the ID is correct : Ocimum tenuiflorum  (syn. O. sanctum L.).

[ushadi]

Mahadesawaraji is correct

this looks like Krishna tulasi

'

Regards

Ushadi

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[Pandian Tensingh]

Thanks to Mahadeswara and Ushadi

with regards

E.P.Tensingh

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[ushadi]

But i must also point out that Ocimum tenuiflorum and  O. sanctum are not synonyms

if you grow them

you begin to notice the differences

Regards

Ushadi

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[ushadi]

ALthough i should have said that Wikipedia thinks they are synonyms

but in my experience they look behave and taste very different

esp after several years of self seeding in the same gardens...

and self seed differently

Regards

Ushadi

[dr.rakesh Singh]

Ma'am , please elaborate ...which is Ocimum tenuiflorum and which is O. sanctum ......

As for ''Krishna '' and  ''Gaura '' varieties , other than color , what other differences you have noticed ?

At times it seems ''Krishna'' is robust , and has a bit larger flowers  ,  and longer , bit less dense spike . 

But then , ''Gaura'' shows lot of variation in leaf size and texture . 

Probably an intermediate form too....leaves green , stem reddish...this I ave to be on look out for inflorescence color ...I do not remember or have not noticed  .  

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[M Swamy]

Madam, 

Thanks.   I have mentioned the  synonym based on this link :  http://www.theplantlist.org/tpl/record/kew-137105  the 1.1. version of theplantlist which is the latest.  The experts may advise me as to where I should check for the latest names as the 1.1. version  has not been revised .

Regards,

M.Swamy

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[ushadi]

i am not familiar with "gaura"

Regards

Ushadi

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[ushadi]

Mahadeswaraji

you are right

there is lot of  confusion even in my search

i was just talking about my experience from planting these plants and using for puja aaaaand eating

Rama ( labelled Ocimum sanctum) and Krishna tulasi ( labelled O. tenuiflorum) plants

labelled when purchased at the Agri-Horticulture Garden kolkata

I keep reading  the pharmacognosy papers from ayurvedic folks

and they give very confusing nomenclature and ideas

just like this paper

please try to make sense of this

http://ijpjournal.com/bft-article/ocimum-sanctum-a-medicinal-gift-from-nature/?view=fulltext

==

More heartening news is

atleast to my mind that these two plants should be separated by their chemical constituents

and so by inference... in their genetic make up

O ne molecular biology testing  study from 2015  is suggesting

at least that these may be typed as two separate subtypes.

because they found that the Krishna tulsi had different up and down regulated genes compared to Rama tulsi

I quote

" The differentially expressed genes found in the transcriptomes of both the Tulsi subtypes were analysed.

We observe a substantial number of genes up-regulated and down-regulated in Krishna Tulsi, compared to Rama Tulsi."

end quote

through out the results one finds other difference in the two subtypes

URL for this paper is : https://bmcplantbiol.biomedcentral.com/articles/10.1186/s12870-015-0562-x

==

to my mind this is progress of sorting these  two plants .

Regards

Ushadi

[Pandian Tensingh]

I was of the opinion that that the purple variety( Krishna thulasi = karumthulasi) and the green variety( Rama thulsi ) are both O.tenuiflorum

and that O.tenuiflorum and O.sanctum are synonyms . Thank you all for enlightening me.

with regards

E.P.Tensingh

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[dr.rakesh Singh]

Krishnaa and Gaura (meaning a lady of fair skin)are the names given by village folk for Purple and Green Tulsi respectively ...and Tulsi is considered as avatar of Goddess Lakshmi , hence the feminine names  . For record , Ram and Krishna , both are described as dark skinned . 

Vernacular and popular names lead to confusion , I avoid them  and that irks my family and friend alike . 

Names aside , what morphological differences have been observed apart from color ?

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[J.M. Garg]

Hi, Mahadeswara ji,

Here The Plant List is based on WCSP (one of the most authoritative list made by Kew, but only for selected families)

Current list of WCSP be seen here.

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[Mahadeswara]

Madam,

I am extremely sorry for the delay in my reply.  I have missed out  several important  postings   including this which is addressed to me .   You have made an excellent analysis, rather  well researched information .   Your observations are very relevant  and need to be taken not of , by the taxonomists. 

Regards,

Madam

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[Mahadeswara]

The above mail is for the  attn. of Usha Di .

[ushadi]

Mahadeswaraji

my internet was down for several days

it  just came on

Thank you for appreciating  my writing

Regards

Ushadi

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