Requesting I'd of Spiranthes sp. (Orchidaceae) from Sikkim Himalayan region

[Madhusudhan Khanal]

Respected florists, kindly help with the identification of Spiranthes sp. spotted in plenty from West Sikkim . 

 Kindly check the attached image of the plant in its natural habitat. Thank you. 

Regards,

Madhusudhan Khanal

PhD scholar

Department of Botany

Sikkim University

[J.M. Garg]

Thanks, Madhusudhan ji

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With regards,
J. M. Garg

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[Pankaj Kumar]

Again, it is not possible to confirm without dissection.

Please dissect the flowers and share images.

Thanks and regards

Pankaj

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Pankaj Kumar, Ph.D.
IUCN-SSC Orchid Specialist Group Asia

32, 2nd Floor, Shui Wo Tsuen, Lam Tsuen,

Lam Kam Road, Tai Po, New Territories, Hong Kong S.A.R., China

email: sahani...@gmail.com
Phone: +852 9436 6251 (mobile)

[Madhusudhan Khanal]

Respected sir. Kindly check the attached images of dissected floral whorls. 

Tubers/roots : (7- 13) , no of flowers/buds per spike in  larger plants : 43-54. 

Thank you.

[Pankaj Kumar]

I tend to call this Spiranthes hongkongensis. Please check the attached pdf and match with your flowers if possible.

[Pankaj Kumar]

Dear Sir

I am sure Spiranthes himalayensis is found in India but the flower of this species including the lip is much bigger and broader. The front of lip of you species is much narrow like S. hongkongensis. 

Please also look at the apex of the petals which are blunt in S. himalayensis but almost rounded, acute or obtuse in S. sinensis and S. hongkongensis. However, the petals  in S. sinensis are slightly spathulate (broader towards upper half) and almost oblong in S. hongkongensis. Floral bract is slightly shorter than the ovary in S. hongkongensis but longer than the ovary in the other two. Column is shortest in S. sinensis but longer in the other two. Stigma is narrowest in S. hongkongensis but broader in other two. Dont worry about hairs, as they are found in all three, while S. sinensis comes in both hairy and non hairy forms.

Please recheck as you have the live plants. Or instead take some pics under the microscope of the petals. 

Thanks and regards

Pankaj

On Tue, 29 Mar 2022 at 19:51, Madhusudhan Khanal <mkhanal....@sikkimuniversity.ac.in> wrote:

Respected sir. The characters matches closely to S. himalayense. Pair of fork like minute rostellum was seen in most flower. Also the glands in the base of labellum are somewhat globose. 

Flora of sikkim shows the presence of S. Sinensis only and i am confused as S. sinensis also shows pubescent forms . The flowering period is different compared to S. sinensis and all the plants have white coloured flower. 

Thank you

Regards

Madhusudhan Khanal 

On Tue, 29 Mar, 2022, 1:44 pm Madhusudhan Khanal, <mkhanal....@sikkimuniversity.ac.in> wrote:

Thank you for the promt reply.  I will check and get back to you. Thanks & Regards

Madhusudhan Khanal