A reply: " That is very clearly a superb clump of Ceratopteris pteridioides. In the past they have often all been put as one species in India, "C. thalictroides", but in fact three species and two subspecies occur there - C. thalictroides is a tetraploid species with a thinner stipe and not so huge (it is not just a matter of growth!), but C. pteridoides is commoner in the plains and has the very characteristic thick, succulent stipe so well shown in your photo. C. pteridoides is diploid (though I can't quite see the chromosomes this time!!). They make a nice sag - especially the more foliose C. pteridioides. [sorry I have to check exactly how it is spelt correctly - but my book is in London and I'm currently in Edinburgh!], check it on www.ipni.org Chris Fraser-Jenkins."
On 29 October 2012 17:43, jmgarg1 <[email protected]> wrote: > Forwarding again for Id confirmation or otherwise please. > > > ---------- Forwarded message ---------- > From: N Arun <[email protected]> > Date: 22 October 2012 17:29 > Subject: [efloraofindia:135893] Ceratopteris sp. > To: [email protected] > > > An exclusively aquatic fern. > > taken at Lalbagh,Oct 22 > <https://lh5.googleusercontent.com/-TTeEcm3IK2c/UIU0NHpHnuI/AAAAAAAAARc/noeDqA4tfzM/s1600/IMG_3664.JPG> > > > <https://lh3.googleusercontent.com/-jScAh1bnh0c/UIUzzMLpAQI/AAAAAAAAARU/Ucr6AmUm5d4/s1600/IMG_3663.JPG> > > -- > > > > > > > -- > With regards, > J.M.Garg > http://en.wikipedia.org/wiki/User:Jmgarg1 > 'Creating awareness of Indian Flora & Fauna' > The whole world uses my Image Resource of more than a *thousand species*& > eight thousand images of Birds, Butterflies, Plants etc. (arranged > alphabetically & place-wise): > http://commons.wikimedia.org/wiki/Category:J.M.Garg. You can also use > them for free as per Creative Commons license attached with each image. > For identification, learning, discussion & documentation of Indian Flora, > please visit/ join our Efloraofindia Google e-group: > http://groups.google.co.in/group/indiantreepix (more than 1980 members & > 1,33,000 messages on 30/9/12) or Efloraofindia website: > https://sites.google.com/site/efloraofindia/ (with a species database > of more than 7500 species). > Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of > India'. > > -- With regards, J.M.Garg http://en.wikipedia.org/wiki/User:Jmgarg1 'Creating awareness of Indian Flora & Fauna' The whole world uses my Image Resource of more than a *thousand species* & eight thousand images of Birds, Butterflies, Plants etc. (arranged alphabetically & place-wise): http://commons.wikimedia.org/wiki/Category:J.M.Garg. You can also use them for free as per Creative Commons license attached with each image. For identification, learning, discussion & documentation of Indian Flora, please visit/ join our Efloraofindia Google e-group: http://groups.google.co.in/group/indiantreepix (more than 1980 members & 1,33,000 messages on 30/9/12) or Efloraofindia website: https://sites.google.com/site/efloraofindia/ (with a species database of more than 7500 species). Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of India'. --
