Rashida ji Please realise that in E. nerifolia the spines are borne on spirally arranged ribbed, whereas in both E. nivulia and E caducifolia the stem is neither ribbed, angled or winged. In E. caducifolia the cyathia are yellow in flower, reddish in fruit. Please see the following link
http://www.cactuspro.com/encyclo/Euphorbia/caducifolia <http://www.cactuspro.com/encyclo/Euphorbia/caducifolia> -- 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 10:05 PM, Gurcharan Singh <singh...@gmail.com>wrote: > You are right Pankaj ji > Our idea is to develop keys which can be used by common members without > much knowledge of floral structure. Fortunately it helps in Euphorbia which > have little cyathial diversity except for number of glands and gland > appendages. > > -- > 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 9:48 PM, Pankaj Kumar <sahanipan...@gmail.com>wrote: > >> My key was deliberatey based on non floral characters, except for use of >> bracts at one branch. It can be used without even touching the plant. But >> yes, the usage of floral characters is always advisable. >> Pankaj >> >> >> On Fri, Mar 11, 2011 at 9:41 PM, Gurcharan Singh <singh...@gmail.com>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: 9810359089 >>> http://people.du.ac.in/~singhg45/ >>> >>> On Fri, Mar 11, 2011 at 9:35 PM, Samir Mehta <samirmeht...@gmail.com>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 <singh...@gmail.com> 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 < >>>> atthar.rash...@gmail.com>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 < >>>> singh...@gmail.com>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 < >>>> singh...@gmail.com>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 < >>>> sahanipan...@gmail.com>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 >>>> >>> >>> >>> >>> >> >> >> -- >> *********************************************** >> "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 >> > > > >
