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
