Pedilanthus tithymaloides or devils backbone tanay On Mon, Jan 3, 2011 at 7:50 AM, Pankaj Kumar <[email protected]> wrote:
> Pedilanthus tithymaloides.. two varieties. > Pankaj > > > On Mon, Jan 3, 2011 at 9:10 PM, chitralekha P <[email protected]> > wrote: > > Please identify this plant. Is it a member of Euphorbiaceae? > > Cultivated, photographed on side of Lodi road, New Delhi. > > Same plant has the green as well as variegated branches. Only a narrow > > region along the leaf margin is colourless. When sectioned the colourless > > part had cells without or very few green chloroplasts while the green > parts > > of some leaves have green chloroplasts in all the mesophyll cells, some > > other leaves have green chloroplasts only in the middle region with the > > pallisade and lower spongy parenchyma layers devoid of them and some > other > > leaves have green chloroplasts in all the cells except the pallisade > layers. > > Any idea how the colourless cells form only at the margins? > > Thanks, > > Chitralekha > > > > > > -- > *********************************************** > "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 > -- *Tanay Bose* Research Assistant & Teaching Assistant. Department of Botany. University of British Columbia . 3529-6270 University Blvd. Vancouver, B.C. V6T 1Z4 (Canada) Phone: 778-323-4036 (Mobile) 604-822-2019 (Lab) [email protected]
