No doubt of the spiral arrangement of the spines in the second image Gurcharan ji. Many thanks for the clarification.
Regards, Samir On Mar 11, 9:11 pm, Gurcharan Singh <[email protected]> wrote: > Samir ji > Please look at the second photograph in your post. If they are the same > plant, you can clearly see spirally arranged spines in the second photograph > even from a distance. They are never so in E. caducifolia. As for the colour > observe the following plant of E. caducifolia > > http://commons.wikimedia.org/wiki/File:Euphorbia_caducifolia2_ies.jpg > > <http://commons.wikimedia.org/wiki/File:Euphorbia_caducifolia2_ies.jpg> > -- > 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 Fri, Mar 11, 2011 at 9:35 PM, Samir Mehta <[email protected]> wrote: > > 'Shrub wiithout trunk with branches arising from base, smaller > > leaves (3-8 cm long) and longer spines 0.5-1 cm.............E > > caducifolia > > > Trunk absent, place of attachment of spines raised ........E. > > caducifolia' > > > Gurcharan ji, > > > Pankaj ji's and your (relevant portion of the) keys, for the > > identification of E. cadufolia are presented above and my relevant > > observations below: > > > 1) the spines on the image I posted as E. cadufolia were definitely > > >0.5 cm, closer to 1cm. > > 2) the place of attachment of spines is raised - no doubt on that > > score. > > > The two above observations together with Rashida ji's point on color > > of cyathia make a compelling case for my post to be labeled E. > > cadufolia. May I request you to reassess your doubts in the matter. > > > Regards, > > > Samir > > > On Mar 11, 8:46 pm, Gurcharan Singh <[email protected]> wrote: > > > Rashida ji > > > Please clarify where you want to use radical leaves or not. All leaves > > > radical means there is no stem at all and a leafless scape would arise > > at > > > the time of flowering to carry the inflorescence up. On the other hand if > > > all leaves are not radical means there would be some radical (basal) > > leaves > > > and then some leaves on the aerial stem. > > > > -- > > > 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 Fri, Mar 11, 2011 at 8:55 PM, Rashida Atthar < > > [email protected]>wrote: > > > > > Sir, my clarification is for - the leaves all radical and leaves not > > all > > > > radical - should it be be a key or not . > > > > > Sir, also request you to have a relook at Samir ji's post and the > > colour > > > > of the cyathia I think red should be E. caducifolia and green > > should be > > > > E. neriifolia. Sorry, but I feel omission of important floral > > elements > > > > will lead to some confusion in the keys. Hope this is taken as > > constructive > > > > criticism! > > > > > regards, > > > > Rashida. > > > > On Fri, Mar 11, 2011 at 8:40 PM, Gurcharan Singh <[email protected] > > >wrote: > > > > >> Rashida ji > > > >> Stem is developed in both. In practice in shrubs the branches arising > > from > > > >> base are known as stems only. The difference is of common stem better > > known > > > >> as trunk. In trees we have a trunk which is single for some distance > > after > > > >> which the branches arise (E. nivulia and others). In Shrubs there is > > no > > > >> trunk and individual branches (stems) arise from the base. > > > > >> -- > > > >> 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 Fri, Mar 11, 2011 at 8:35 PM, Gurcharan Singh < > > [email protected]>wrote: > > > > >>> Thanks a lot Pankaj ji > > > > >>> Members can take help of both the keys. > > > > >>> -- > > > > >>> 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 Fri, Mar 11, 2011 at 8:25 PM, Pankaj Kumar < > > [email protected]>wrote: > > > > >>>> Stem without spines > > > >>>> Leaves red/brown/reddish-brown …………………………........Euphorbia > > > >>>> cotinifolia > > > >>>> Leaves green or green with variegations > > > >>>> Leaves usually present for short > > > >>>> duration towards the terminal end of stem > > ..……………......Euphorbia > > > >>>> tirucallii > > > >>>> Leaves present for longer duration > > > >>>> not just confined to the terminal ends > > > >>>> Leaves alternate scattered distichously > > > >>>> …………............Euphorbia tithymaloides > > > >>>> Leaves alternate, scattered spirally > > > >>>> (not distichously atleast) > > > >>>> Bracts uniformly coloured > > > >>>> (yellow or red or white in colour) > > …………………….......Euphorbia > > > >>>> pulcherrima > > > >>>> Bracts coloured but not completely > > > >>>> Bracts red coloured towards > > > >>>> the basal part ……………………………......………...Euphorbia > > > >>>> heterophylla > > > >>>> Bracts white coloured towards > > > >>>> the basal part …………………………………....……...Euphorbia > > > >>>> cyathophora > > > > >>>> Stem with spines > > > >>>> Stem red/brown/reddish-brown in colour, > > > >>>> normally not more than 1.5cm thick ……………………….......Euphorbia > > milii > > > > >>>> (excluding polyploid hybrids) > > > >>>> Stem green/white/greyish-green/variegated, > > > >>>> normally more than 3cm thick > > > >>>> Stem almost cylindric > > > >>>> Trunk absent, place of attachment > > > >>>> of spines raised ……………………………………..............Euphorbia > > > >>>> caducifolia > > > >>>> Trunk present, place of attachment > > > >>>> of spines almost embedded atleast not raised > > …………...Euphorbia > > > >>>> nivulia > > > >>>> Stem angular or winged > > > >>>> Wings 3-4 > > > >>>> Wings straight, sinuate or dentate > > > >>>> Stem green without > > > >>>> white bands > > > >>>> …………………..............................…Euphorbia antiquorum > > > >>>> Stem variegated with > > > >>>> white or white bands > > > >>>> between two wings > > > >>>> …………..…......................…...Euphorbia lactea > > > >>>> Wings spiral > > ………………………........................…….Euphorbia > > > >>>> tortilis > > > >>>> Wings 5-6 ……………………………......................…...….Euphorbia > > > >>>> royleana > > > > >>>> Varieties may be kept separately I assume. > > > >>>> Key is 98% yours and I just added and deleted few things so even > > less > > > >>>> than 2% of my knowledge involved. > > > >>>> Regards > > > >>>> Pankaj > > > > >>>> -- > > > >>>> *********************************************** > > > >>>> "TAXONOMISTS GETTING EXTINCT AND SPECIES DATA DEFICIENT !!" > > > > >>>> Pankaj Kumar Ph.D. (Orchidaceae) > > > >>>> Research Associate > > > >>>> Greater Kailash Sacred Landscape Project > > > >>>> Department of Habitat Ecology > > > >>>> Wildlife Institute of India > > > >>>> Post Box # 18 > > > >>>> Dehradun - 248001, India
