A reply: "Unfortunately this is rather a lot of muddling up! First Cheilanthes (or now commonly Aleuritopteris) argentea is NOT the Indian "silver fern" - so far it has only turned up as a great rarity, discovered recently by that Fraser-Jenkins fellow at high-altitude in N. Nepal and N. Bhutan - it is otherwise a Chinese and E. Siberian species. It is not "The" silver fern - there are some 12 different silver ferns and two gold ferns in India, of which A. farinosa is also not one (confined to Africa and S. Arabia). Common species are A. bicolor, A. formosana, A. anceps, A. albomarginata etc. - one must see the distribution of scales to identify them. Finally this is not a Cheilanthes at all, but is the common Pityrogramma calomelanos, not widespread in India, but actually a rather recent mostly early 20th Century adventive species from South America. It has a quite different frond-shape from the Aleuritopteris species. Many problems like this could be solved by referring to Prof. Khullar's most important contribution, the Illustrated Fern Flora of the West Himalaya, and further details are in many other books and papers, includiing some of mine. Best wishes, Chris F.-J., R.B.G., Edinburgh."
On 3 November 2012 19:04, jmgarg1 <[email protected]> wrote: > Forwarding again for Id confirmation please. > > > ---------- Forwarded message ---------- > From: Karuna Das <[email protected]> > Date: 29 October 2012 16:40 > Subject: [efloraofindia:136636] Siver fern - [Cheilanthes argentea (Gmel.) > Kunze] from Guwahati. > To: [email protected] > Cc: [email protected] > > > Dear All, > Attached images are Silver fern [ Cheilanthes argentea (Gmel.) > Kunze]collected from Chokordow Hill (Guwahati-17). > > Date :28/10/2012 > Location: Chokordow, Guwahati-17 [Dist- Kamrup(Metro)] > Habitat: Grows on hill slopes > Sori : Silver coloured > Rhizome : present > Scales on the rhizome : Not examined > > With regards > Karuna Kanta Das > Guwahati 781012 > > > > <http://sigads.rediff.com/RealMedia/ads/click_nx.ads/www.rediffmail.com/signatureline.htm@Middle?> > Catch India as it happens with the *Rediff News App*. To download it for > FREE, click > here<http://track.rediff.com/click?url=___http://www.rediff.com/newsapp___&lnk=signature&newservice=newsapp> > > -- > > > > > > > -- > 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 2000 members & > 1,37,000 messages on 31/10/12) 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 2000 members & 1,37,000 messages on 31/10/12) 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'. --
