Forwarding again for ID
Distributed as  Aconitum species- North Sikkim 
<https://sites.google.com/site/efloraofindia/species/m---z/r/ranunculaceae/aconitum/aconitum-species/north-sikkim>
 
Group discussion at
  Aconitum heterophyllum [?] (Ranunculaceae) from North Sikkim. (google.com) 
<https://groups.google.com/g/indiantreepix/c/SJ2y7IO4iHw>  

On Wednesday, November 2, 2016 at 10:40:15 PM UTC+5:30 tchakrab wrote:

> Chadwell ji,
> Thank you very much for your kind reply.
> Yours sincerely,
> Tapas.
>
> On Wed, Nov 2, 2016 at 6:15 PM, C CHADWELL <[email protected]> 
> wrote:
>
>> Dear Tapas
>>
>> Unfortunately, this is a challenging genus and requires serious 
>> investigation.  I have literally dozens of genera
>> waiting for my attention to scrutinize them further.  The situation is 
>> complicated by me having fewer reference works to-hand
>> and less knowledge/familiarity with the flora of the Eastern Himalaya.
>>
>> As to the suggestion A.laciniatum it seems this is no longer an accepted 
>> name according to 'The Plant List'.  Currently
>> under *A.heterophylloides*.  According to 'Flora of Bhutan' this species 
>> is found on grassy alpine slopes and among shrubs @ 3500-
>> 4570m in Sikkim & Bhutan.
>>
>> I cannot readily access reliable images or shots of herbarium specimens 
>> of this species.
>>
>> Will be in touch when can devote the necessary time and concentration to 
>> this or come across a fresh source of information.
>>
>> I see nobody else has volunteered any suggestions. 
>>
>>
>> Best Wishes,
>>
>>
>> Chris Chadwell
>>
>>
>> 81 Parlaunt Road 
>> SLOUGH
>> SL3 8BE
>> UK
>>
>> www.shpa.org.uk
>>
>>
>>
>>
>>
>>
>> ------------------------------
>> *From:* Tapas Chakrabarty <[email protected]>
>>
> *To:* C CHADWELL <[email protected]> 
>> *Cc:* J. M. Garg <[email protected]>; efloraofindia <
>> [email protected]>
>>
>
>> *Sent:* Tuesday, 1 November 2016, 5:20
>> *Subject:* Re: [efloraofindia:254056] Re: Aconitum heterophyllum [?] 
>> (Ranunculaceae) from North Sikkim.
>>
>
>> There is a new suggestion - Aconitum laciniatum
>>
>> On Oct 19, 2016 00:10, "Tapas Chakrabarty" <[email protected]> wrote:
>>
>> Thank you once again Sir.
>> Regards,
>> Tapas.
>>
>> On Tue, Oct 18, 2016 at 9:14 PM, Tapas Chakrabarty <[email protected]> 
>> wrote:
>>
>> Dear Sir,
>> Thank you.
>> The photograph was taken from a plant near Thangu, North Sikkim at about 
>> 4000 m altitude.
>> This key belongs to an unpublished manuscript on the Flora of Sikkim and 
>> the family Ranunculaceae is authored by R. C. Srivastava, ex Scientist of 
>> Botanical Survey of India.
>> it is indeed well known that the keys to the taxa of certain plant 
>> families should be prepared by supplementary field observations as well.
>> Regards, 
>> Tapas.
>>
>> On Tue, Oct 18, 2016 at 8:08 PM, C CHADWELL <[email protected] 
>> om> wrote:
>>
>> Dear Tapas
>>
>> Thanks for sending the key.  Would you let me know which publication this 
>> comes from?
>>
>> *Would you also please provide an approx. altitude and general location 
>> where you took your photos?*
>> *Such information is important and should always accompany any images of 
>> any genus sent for*
>> *identification.*
>>
>> I do have the key in 'Flora of Bhutan' Vol 1 Part 2 (1984), which covers 
>> Sikkim as well but clearly the knowledge 
>> of the genus in the E.Himalaya has advanced since then. 
>>
>> *One must always use keys with caution.  They are difficult to prepare 
>> and inevitably imperfect.  They can*
>> *serve a useful purpose in narrowing down the most likely candidates but 
>> even so.*
>>
>> *A major problem is that most are mostly prepared from a limited number 
>> of dried, pressed herbarium specimens -*
>> *the characteristics of living/fresh specimens is often not known by 
>> herbarium taxonomists.*
>>
>> *The detail one can see in photos - not matter how close-up they are (and 
>> yours are not) is often inadequate*
>> *and/or requires inspect of both flowers and fruit, which seldom are 
>> available together.*
>>
>>
>> Best Wishes,
>>
>>
>> Chris Chadwell
>>
>>
>> 81 Parlaunt Road 
>> SLOUGH
>> SL3 8BE
>> UK
>>
>> www.shpa.org.uk
>>
>>
>>
>>
>>
>>
>> ------------------------------
>> *From:* Tapas Chakrabarty <[email protected]>
>> *To:* 
>> *Cc:* efloraofindia <[email protected] m>; J.M. Garg <
>> [email protected]>
>>
>> *Sent:* Tuesday, 18 October 2016, 9:04
>> *Subject:* Re: [efloraofindia:254056] Re: Aconitum heterophyllum [?] 
>> (Ranunculaceae) from North Sikkim.
>>
>> Thank you Chadwell ji,
>> There are 12 species of Aconitum recorded for Sikkim. I have no knowledge 
>> in this group.
>> Someone gave me a Key to the species in Sikkim which I am furnishing 
>> below thinking that it may be of some use.
>> Regards,
>> Tapas.
>>
>> 1a.
>> Climbing or twining herbs                                                 
>>                          2. *A. elwesiii*                       
>>                          
>>   b.
>> Erect herbs                                                         
>>                                                              2
>> 2a.
>> Annual herbs with slender tap roots; carpels 9 – 
>> 12                               5. *A. gymnandrum*
>>  b.
>> Perennial or biennial herbs, usually with a paired tap root; carpels 3 – 
>> 5 (-8)                3
>> 3a.
>> Inflorescences 1 – 4-flowered                       
>>                                           10. *A. naviculare*
>>  b.
>> Inflorescences many-flowered                  
>>                                                                         4
>> 4a.
>> Perennial herbs                                                        
>>                           11. *A. novoluridum*
>>  b.
>> Biennial herbs                                                         
>>                                                        5
>> 5a.
>> Petals hispid or hispidulous                    
>>                                                                           6
>>  b.
>> Petals glabrous                                                      
>>                                                              9
>> 6a.
>> Carpels glabrous, drying black                                          
>>                            4. *A. gammiei*
>>  b.
>> Carpels pubescent                                                     
>>                                                       7
>> 7a.
>> Carpels 3 (-4 – 5)                             
>>                                                     8. *A. laciniatum*
>> b.
>> Carpels 5                                                             
>>                                                            8
>> 8a.
>> Uppermost sepal horizontal, conspicuously beaked; carpels densely yellow 
>> velutinous      
>>                                                               
>>                                                        9. *A. nakaoi*        
>>                  
>>                                      
>>  b.
>> Uppermost sepal oblique, shortly beaked; carpels sparsely pubescent to 
>> glabrous 
>>                                                               
>>                                           6. *A. heterophylloides*
>> 9a.
>> Carpels glabrous                                                      
>>                                    1. *A. bisma* 
>>
>>  b.
>> Carpels pubescent                                                     
>>                                                       10 
>>
>> 10a.
>> Leaves from hypogynous base of stem                           
>>                           7. *A. hookeri* 
>>
>>   b.
>> Leaves basal and cauline                        
>>                                                                        11 
>>
>> 11a.
>> Bracteoles linear, entire; flowers dirty blue; petal head *ca *6 mm 
>> long          3. *A. ferox* 
>>
>>   b.
>> Bracteoles broad, dentate; flowers deep blue; petal head *ca *10 mm 
>> long                                                                 
>>                                                 12. *A. spicatum* 
>>  
>>
>> On Mon, Oct 17, 2016 at 11:12 PM, [email protected] m 
>> <[email protected] 
>> om> wrote:
>>
>> I can say with certainty that this is definitely not *Aconitum 
>> heterophyllu*m  - a species not found in the E.Himalaya. I had delayed 
>> in sending an initial response in hope that some else would name it!
>>
>> My knowledge of Eastern Himalayan flora is much less with relatively few 
>> plant explorations in the region.  I have not been into Sikkim proper.  
>>
>> Aconitum is not an easy genus; I see there are a number of images of 
>> specimens of this genus photographed in Sikkim on efi site which have not 
>> be identified yet.  *Another task awaiting to take a close look at all 
>> these!*  Clearly there is no expert on the genus currently available?   
>> There are quite a number of species to consider.  I could say it was 
>> similar to one or two species but need time to look into the E.Himalayan 
>> representatives further.  Some 20+ species recorded from Bhutan & Sikkim - 
>> though one can readily eliminate most of these.
>>
>> Shall wait further just in case there is anyone out there who can come to 
>> our assistance?
>>
>>
>> On Sunday, October 9, 2016 at 6:05:01 PM UTC+1, tchakrab wrote:
>>
>> Kindly look at the attachments.  This is fairly common there.
>> Regards,
>> Tapas.
>>
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