Garg Sir, I find this post settled under *Sonchus arvensis* in efI - https://sites.google.com/site/efloraofindia/species/a---l/ar/asteraceae/sonchus/sonchus-arvensis .
Is it *Sonchus arvensis*? Or is it also an eye-opener? Regards, surajit On Thu, Dec 6, 2012 at 7:23 AM, surajit koley <[email protected] > wrote: > Good morning and thanks Dr. P. K. S. > > Regards, > > surajit > > > On Thu, Dec 6, 2012 at 7:09 AM, Dr Pankaj Kumar <[email protected]>wrote: > >> Dear Mr. Surajit >> I was reading some of your mails above. Indeed you jumped deep into it >> and this is really nice of you to have so much of patience. >> There is one issue here I think Many of the characters you are talking >> about are so variable that they cant be trusted to define a species based >> on morphology. >> According to the protologue if you can see, both species are written >> as PERENNIAL. >> Leaves in both are heteromorphic and hence there is no distinct shape and >> size, unless and untill one it toooooo long or tooooo short. Even the >> margin shape is not consistent. >> The prominence of ribs of achenes also depends on how dry the seeds are. >> Pappus is 6-9mm in one and 8-14mm in another, so this is slightly >> overlapping too. >> I am forwarding this to Gunjan Sud also. May be she can dig something out >> of it. >> Best of luck. >> Pankaj >> >> >> >> >> On Wednesday, 5 December 2012 00:11:47 UTC+8, surajitkoley wrote: >>> >>> Sir, >>> >>> I hope this is *Sonchus arvensis* Linnaeus (বন-পালং), as in my earlier >>> post at - https://groups.google.com/d/**topic/indiantreepix/** >>> ZlmjKtsjUr4/discussion<https://groups.google.com/d/topic/indiantreepix/ZlmjKtsjUr4/discussion> >>> . >>> >>> It's an experience to look back into history :- >>> >>> 1. http://ia700605.us.archive.**org/BookReader/** >>> BookReaderImages.php?id=**mobot31753000237401&itemPath=%** >>> 2F1%2Fitems%**2Fmobot31753000237401&server=** >>> >>> ia700605.us.archive.org&page=**n635_w1150.jpg<http://ia700605.us.archive.org/BookReader/BookReaderImages.php?id=mobot31753000237401&itemPath=%2F1%2Fitems%2Fmobot31753000237401&server=ia700605.us.archive.org&page=n635_w1150.jpg> >>> 2. http://ia600609.us.archive.**org/BookReader/** >>> BookReaderImages.php?id=**mobot21753000004407&itemPath=%** >>> 2F0%2Fitems%**2Fmobot21753000004407&server=** >>> >>> ia600609.us.archive.org&page=**n417_w1150.jpg<http://ia600609.us.archive.org/BookReader/BookReaderImages.php?id=mobot21753000004407&itemPath=%2F0%2Fitems%2Fmobot21753000004407&server=ia600609.us.archive.org&page=n417_w1150.jpg> >>> >>> ID Help :- >>> >>> 1. >>> http://www.mpbd.info/plants/**sonchus-wightianus.php<http://www.mpbd.info/plants/sonchus-wightianus.php> >>> 2. http://plantillustrations.org/**taxa.php?id_taxon=2478&lay_** >>> out=2&photo=0&volume_entire_**work=&series=&volume_series=&** >>> >>> all=&full_size=&illustration=&**language=153<http://plantillustrations.org/taxa.php?id_taxon=2478&lay_out=2&photo=0&volume_entire_work=&series=&volume_series=&all=&full_size=&illustration=&language=153> >>> >>> Some confusion :- >>> >>> 1. http://www.efloras.org/**florataxon.aspx?flora_id=2&** >>> >>> taxon_id=242349619<http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=242349619> >>> 2. http://www.efloras.org/**florataxon.aspx?flora_id=1&** >>> >>> taxon_id=242349589<http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242349589> >>> 3. >>> http://www.theplantlist.org/**tpl/record/gcc-77555<http://www.theplantlist.org/tpl/record/gcc-77555> >>> 4. >>> http://www.theplantlist.org/**tpl/record/gcc-97065<http://www.theplantlist.org/tpl/record/gcc-97065> >>> 5. >>> http://www.theplantlist.org/**tpl/record/gcc-48853<http://www.theplantlist.org/tpl/record/gcc-48853> >>> 6. >>> http://www.ars-grin.gov/cgi-**bin/npgs/html/taxon.pl?34932<http://www.ars-grin.gov/cgi-bin/npgs/html/taxon.pl?34932> >>> >>> Thank you & Regards, >>> >>> surajit >>> >> -- >> >> >> >> > > -- --- 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]. For more options, visit https://groups.google.com/groups/opt_out.
