OK, Surajit Nidhan and Prabhu Kumar, got the point, thanks for
explanations.
but detailed look at leaves and flowers forms an initial part of the key...
rhizomes of course seem to be a final clincher  in case of curcuma.

http://flora.huh.harvard.edu/china/PDF/PDF24/curcuma.pdf

It also underscores the need for detailed photography or verbal description
of the leaves surface and touch and feel, coloration of leaves and veins
and size of the leaf blade , bracts and coma
in case of curcuma.

===



*BUT my question still remains*... My understanding was that :  overall
rule is not to disturb (wild, naturally occurring , native) plants, do not
pick flowers, do not cut branches, do not dig up etc....
is there a final authority ion whom this decision depends or are there no
laws.

My understanding was that  there were rules.

may be it can be a separate thread.

Or may be there are conflicting rules and regulations????

==
usha di


On Fri, Aug 29, 2014 at 7:33 PM, surajit koley <
[email protected]> wrote:

> Thank you very much Sir. Does majority of these members produce seeds? How
> their dispersing mechanism works?
>
> Regards
>
>
>
> On Fri, Aug 29, 2014 at 11:42 AM, Prabhu kumar Km <
> [email protected]> wrote:
>
>> Dear all,
>>
>> Surajitji you are rightly mentioned.
>>
>> *Curcuma* L. is one of the charming genus in the family Zingiberaceae,
>> we can easily distinguish the genus from other genera by means of
>> inflorescence, a spike with prominent spiral bracts each subtending a
>> cincinnus of flowers. In fact, it is very difficult to identify the species
>> among the genus. Taxonomical history of the genus revealed that, the
>> pioneer taxonomists (Roxburgh, 1820; Horaninow, 1862; Baker, 1890;
>> Schumann, 1904) were proposed various sections depending on the position of
>> spikes and absence or presence of anther spur. Recently Sabu (2006) revised
>> the family Zingiberaceae in South India along with Costaceae.  Depending
>> upon his studies, the major characters used for the identification of
>> *Curcuma’s* are presence of anther spur,  size of the pseudostem,
>> presence or absence of root-tubers, rhizome colour and smell, colour of the
>> coma bracts and proportion of flower with bract (flowers exceeding bract or
>> not). For example, we can easily identify *C. aurantica* (Syn. *C.
>> ecalcarata*) from other species my means of the absence of anther spur.
>> Likewise, in *C. pseudomontana* sessile tubers are absent and in *C.
>> vamana *and* C. oligantha* coma bracts are absent. With regard to
>> rhizome colour, rhizome blue within in *C. aeruginosa*, yellow to deep
>> yellow within in *C. zanthorrhiza,* deep orange-yellow within *C. longa*
>> and greyish yellow within *C. aromatica*. Regard to smell, *C. amad*a
>> rhizome with the smell of green mango. In many species, Curcuma possess
>> lateral and central inflorescence like *C. inodora.*
>>
>>
>> Hope the information is useful.
>>
>>
>>
>>
>> On Fri, Aug 29, 2014 at 7:01 AM, surajit koley <
>> [email protected]> wrote:
>>
>>> Good morning Didi
>>>
>>> Attached here KEY to AMADA and HALUD by Sir Prain and Haines
>>>
>>> Thank you
>>>
>>> Regards
>>>
>>>
>>>
>>> On Fri, Aug 29, 2014 at 12:08 AM, Ushadi Micromini <
>>> [email protected]> wrote:
>>>
>>>> yes of course. grant you that, Surajit.
>>>>
>>>> let's see what the professors who actually go on collection tours as
>>>> part of their official duties have to do and follow.
>>>>
>>>> usha di
>>>>
>>>>
>>>> On Thu, Aug 28, 2014 at 11:40 PM, surajit koley <
>>>> [email protected]> wrote:
>>>>
>>>>> No problem Didi, but I agree partly, you or others may have different
>>>>> view.
>>>>>
>>>>> Thank you
>>>>>
>>>>> Regards
>>>>>
>>>>>
>>>>>
>>>>> On Thu, Aug 28, 2014 at 11:21 PM, Ushadi Micromini <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> no surajit
>>>>>> when in wild
>>>>>> rule of photography for ethnobotany for conservation is do not
>>>>>> disturb ... and definitely do not break up, pick etc
>>>>>>
>>>>>>
>>>>>> Nidhan and Gurcharanji can elaborate..  my underrstanding is that
>>>>>> even botanists on so called collection drives often need special
>>>>>> permission to collect...
>>>>>>
>>>>>> never dig up...
>>>>>>
>>>>>> I am sure there is less invasive way of doing most photography for id
>>>>>> purposes.
>>>>>>
>>>>>> sorry, surajit.
>>>>>>
>>>>>> Usha di
>>>>>>
>>>>>>
>>>>>> On Thu, Aug 28, 2014 at 10:51 PM, surajitkoley <
>>>>>> [email protected]> wrote:
>>>>>>
>>>>>>> Before Prabhu Ji intervenes I think the best practice is to dig the
>>>>>>> rhizome to note its aroma and colour. Besides, checking if the
>>>>>>> inflorescence is lateral or central.
>>>>>>>
>>>>>>> Thank you
>>>>>>>
>>>>>>> Regards
>>>>>>>
>>>>>>>
>>>>>>> On Thursday, 28 August 2014 22:21:26 UTC+5:30, Ushadi wrote:
>>>>>>>>
>>>>>>>> Nidhan has raised an important question
>>>>>>>>
>>>>>>>> It would be lovely to know about to look for and photograph  for
>>>>>>>> curcuma
>>>>>>>> and ginger family..
>>>>>>>>
>>>>>>>> thanks
>>>>>>>> usha di
>>>>>>>>
>>>>>>>>
>>>>>>>> On Thu, Aug 28, 2014 at 10:02 AM, Nidhan Singh <
>>>>>>>> [email protected]> wrote:
>>>>>>>>
>>>>>>>>> Dwar Prabhu Ji..
>>>>>>>>> Please let us know, what should be taken care of while taking pics
>>>>>>>>> of Curcuma..so that identification can be attempted...or some other 
>>>>>>>>> things
>>>>>>>>> are there which cannot be recorded in pics..
>>>>>>>>>
>>>>>>>>> --
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>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> --
>>>>>>>> Usha di
>>>>>>>> ===========
>>>>>>>>
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>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Usha di
>>>>>> ===========
>>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>> --
>>>> Usha di
>>>> ===========
>>>>
>>>
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>>
>>
>>
>> --
>> *Prabhu Kumar K M *
>> Scientist
>> Plant Systematics & Genetic Resources Division
>> & 'CMPR' Herbarium
>> Centre for Medicinal Plants Research (CMPR)
>> Arya Vaidya Sala, Kottakkal,
>> Malappuram - 676 503, Kerala, India
>> *E-mail: [email protected] <[email protected]>*
>>
>
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-- 
Usha di
===========

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