Wonderful learning conversation.... and sooo mature way of putting ideas...
thank you folks I wish all our conversations were this collegial... Coming back to this case.. it may no be a high prioroty plant for the naming/restructuring of classification group/s... usha di ==== On Oct 20, 8:27 am, Gurcharan Singh <[email protected]> wrote: > Yes Pankaj ji > I found it out from IPNI and Compositae Checklist. > Thanks for information > > -- > 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: 9810359089http://people.du.ac.in/~singhg45/ > > On Thu, Oct 20, 2011 at 8:42 AM, Pankaj Kumar <[email protected]>wrote: > > > > > > > > > Xanthium strumarium Elliott Sketch Bot. S. Carolina 2: 479 (1823). > > This is the full citation of the same name. > > I understood your point. May be once the other strumarium is resolved, > > they will be able to resolve this one also :). > > Pankaj > > > On Thu, Oct 20, 2011 at 10:42 AM, Gurcharan Singh <[email protected]> > > wrote: > > > Pankaj ji > > > But interestingly Xanthium strumarium (without any author) is accepted > > name > > > according to the Plant List, with X. chinense Mill. as synonym I am tired > > of > > > pointing out corrections to them. > > > > -- > > > 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://people.du.ac.in/~singhg45/ > > > > On Thu, Oct 20, 2011 at 7:23 AM, Dr Pankaj Kumar <[email protected] > > > > wrote: > > > >> There are many provisions in ICBN to conserve names which may actually > > >> be wrong. > > >> Article 14.2.of ICBN says, "Conservation aims at retention of those > > >> names which best serve stability of nomenclature". > > >> Stability like, the name of family Orchidaceae Juss., Gen. Pl.: 64. 4 > > >> Aug 1789. is conserved against Orchidaceae Adanson, Fam. des plantes > > >> 2: 68 1763. > > > >> Just based on the popularity of usage, Xanthium indicum may be > > >> considered conserved, but it is not yet conserved, as atleast the > > >> plant list or GRIN doesnt consider them as same. > > > >> For this particular case, it is yet to be resolved according to The > > >> Plant List and both are till now considered distinct species with > > >> Xanthium indicum Roxb. is an unresolved name but synonymous with > > >> Xanthium inaequilaterum DC.. > > > >> WHEREAS > > > >> Xanthium strumarium L. Sp. Pl. 987 1753 is an unresolved name. > > > >> Regards > > >> Pankaj > > > >> On Oct 20, 2:25 am, Satish Phadke <[email protected]> wrote: > > >> > Agreed it has to be vice versa. Thanks for pointing out that. Even The > > >> > plant > > >> > list has something else to say. I cant go more deeper in that > > context. > > > >> > On Wed, Oct 19, 2011 at 10:12 PM, Gurcharan Singh > > >> > <[email protected]>wrote: > > > >> > > Satish ji > > >> > > Yes the identification is correct, but I fail to understand how > > >> > > Xanthium > > >> > > strumarium, a much earlier name be synonym and X. indicum, the > > >> > > accepted name > > > >> > > -- > > >> > > 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://people.du.ac.in/~singhg45/ > > > >> > > On Wed, Oct 19, 2011 at 9:40 PM, Satish Phadke > > >> > > <[email protected]>wrote: > > > >> > >> *Xanthium indicum* Syn *Xanthium strumarium* > > >> > >> Family : Asteraceae > > >> > >> Marathi : Shankeshwar शंकेश्वर A vweed common on roadside > > >> > >> Observed flowering in open areas around Pune city last few days > > >> > >> Large herb Annual about 1m in height. > > >> > >> Stem branches rough hairy. > > >> > >> Leaves serrate alternate 5-8 cm ovate acute triangular or lobed' > > >> > >> appressed > > >> > >> hairy. > > >> > >> Flower heads 0.4-0.8mm across. Green when young in terminal and > > >> > >> axillary > > >> > >> spikes.Barren heads crowded at apex. Fertile heads fewer. > > >> > >> Fruits 2cm long with 2 erect mucronate beaks covered with hooked > > >> > >> prickles. > > >> > >> Achenes 1cm bye 0.4 cm oblong or ovoid. Compressed black. > > > >> > >> -- > > >> > >> Dr Satish Phadke > > > >> > -- > > >> > Dr Satish Phadke > > > -- > > ********************************************************************** > > "Taxonomists getting Extinct and Species Data Deficient !!" > > > Pankaj Kumar Ph.D. (Orchidaceae) > > Conservation Officer > > > Office: > > Flora Conservation Department > > Kadoorie Farm and Botanic Garden (KFBG) Corporation > > Lam Kam Road, Tai Po, New Territories, Hong Kong. > > > Residence: > > 36c, Ng Tung Chai, Lam Tseun > > Tai Po, New Territories, Hong Kong. > > > email: [email protected] > > [email protected] > > [email protected] > > Phone: +852 2483 7128 (office - 8:30am to 5:30pm) > > +852 9436 6251 (mobile)
