In Flora Iranica, Nauman (1969) was of opinion that Populus alba L. is confined to Europe, N. Africa and Anatolia and does not extend to Caucasus, Transcaucasia, Persia, Afghanistan, Pakistan and Central Asia and it is replaced by *P. caspica* Bornm. in those regions. But after studying the type specimen *Populus alba* of Linnaeus (Upsala) and the specimen of India and central Asia, I found that both are similar species. I visited several herbaria in India and a few major herbaria in US but could not get a single specimen of Populus caspica. Unfortunately I don't have any opportunity to visit any herbarium of Middle East so that I could study *P. caspica*. No images of type and other herbarium material are available in the web as well. So now it is not possible without studying the type and authentic specimen to conclude a decision.
Thanks, Sukla ------------------------------------------------ Sukla Chanda, PhD Science & Education, The Field Museum, Chicago IL. On Sun, Feb 9, 2014 at 6:23 PM, J.M. Garg <[email protected]> wrote: > Forwarding again for any assistance in the matter please. > > > ---------- Forwarded message ---------- > From: Gurcharan Singh <[email protected]> > Date: 4 February 2014 08:42 > Subject: [efloraofindia:180817] Salicaceae (including Flacourtiaceae) > Fortnight: Populus alba or P. caspica from Kashmir-Pl validate-GSFEB-1 > To: efloraofindia <[email protected]> > > > It would be interesting to fix whether this plant should actually be named > as Populus alba L. or P. caspica (Bornm.) Bornm. Although Flothough Flora > of Pakistan treats latter as synonym of former, The Plant List considers > latter as unresolved, but there several recent publications treating two as > distinct. > > > > Dr. Gurcharan Singh > Retired Associate Professor > SGTB Khalsa College, University of Delhi, Delhi-110007 > Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. > Phone: 011-25518297 Mob: 9810359089 > http://www.gurcharanfamily.com/ > http://people.du.ac.in/~singhg45/ > > -- > You received this message because you are subscribed to the Google Groups > "efloraofindia" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To post to this group, send email to [email protected]. > Visit this group at http://groups.google.com/group/indiantreepix. > For more options, visit https://groups.google.com/groups/opt_out. > > > > -- > 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 (largest in the world): > http://groups.google.co.in/group/indiantreepix (around 2250 members & > 1,80,700 messages on 31/1/14) or Efloraofindia website: > https://sites.google.com/site/efloraofindia/ (with a species database > of more than 9000 species & 1,80, 000 images). > Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of > India'. > -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/indiantreepix. For more options, visit https://groups.google.com/groups/opt_out.
