Fwd: For ID- N220116

[J.M. Garg]

Forwarding again for Id assistance  please.

---------- Forwarded message ----------
From: Narasimha <narasi...@hotmail.com>
Date: 22 January 2016 at 13:34
Subject: For ID
To: jmg...@gmail.com
Cc: indian...@googlegroups.com

Dear all,

 

Can anyone ID the photograph?

 

Time of photograph: January 2016

Location: Renuka Ji Lake

Elevation: Around 650m

District: Sirmour

State: Himachal Pradesh

 

Regards,

 

Narasimha

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With regards,
J.M.Garg

'Creating awareness of Indian Flora & Fauna'

Winner of Wipro-NFS Sparrow Awards 2014 for efloraofindia. 

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[Nayan Singh]

This plant is Azolla spp., a pteridophyte, may be A. pinnata

Thanks

 

Nayan.

...........................

N.S.Dungriyal IFS
Add Principal Chief Conservator of Forests

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Madhya Pradesh

Mo - 09424790074

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[J.M. Garg]

Forwarding again for Id assistance  please.

Some earlier relevant feedback:

This plant is Azolla spp., a pteridophyte, may be A. pinnata Thanks  Nayan

[J.M. Garg]

Thanks, Chris ji.

---------- Forwarded message ----------
From: Chris Fraser-Jenkins
Date: 7 February 2016 at 15:23
Subject: Re: Fwd: For ID- N220116
To: "J.M. Garg" <jmg...@gmail.com>

This is Azolla filiculoides, which can be seen from its radiate thallus-shape, not A. pinnata subsp. asiatica, which has a more triangular shape and is pinnate, not radiate.

A. filiculoides is adventive in India, presumably introduced deliberately in connection with rice-cultivation due to the nitrogen fixation of the associated Blu-green Algae, but in recent decades it has become quite widespread throughout.  There are two very close subspecies, subsp. cristata (originally of American origin), which is confirmed from Kashmir (where it used not to occur some 30 years ago), and subsp. filiculoides (originally of European and Old World origin), which is confirmed from Nepal and Calcutta.

The two are very closely similar and require careful microscopic examination of the number of cells in the little leaf-hairs and in the glochidia, hairs on the reproductive sporangia.  The full distribution (so far) of the two subspecies in India is not further known pending study of more populations.

     Cheers,

              Chris Fraser-Jenkins, now in Tokyo University (returning to Kathmandu soon).

---

From: J.M. Garg <jmg...@gmail.com>
To: efloraofindia <indian...@googlegroups.com>
Cc: Nayan Singh <ns_dun...@yahoo.co.in>; Narasimha <narasi...@hotmail.com>
Sent: Sunday, 7 February 2016, 14:05