Manudev ji Datura plants are usually herbaceous, flowers less than 15 cm long, usually erect and fruit smooth. Also the calyx splits horizontally (circumscissile) upper part falls off and only basal truncated part persists in fruit.
Brugmansia plants are woody shrubs or trees, flowers longer than 20 cm, and nodding. Calyx does not split horizontally, whole calyxpersists, although it may split vertically on one side. -- 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 Tue, Apr 5, 2011 at 2:09 PM, manudev madhavan <[email protected] > wrote: > Sir ji, > > How can we differentiate Brugmansia from Datura??? > > > On Tue, Apr 5, 2011 at 1:33 PM, Gurcharan Singh <[email protected]>wrote: > >> i am uploading this species because it is reportedly cultivated in Indian >> subcontinent. It is similar to B. suaveolens uploaded by Rotesh but as can >> be seen by comparison that in B. suaveolens the narrow lower part of corolla >> tube is visible above the calyx tube which is 5-toothed, and the flowers are >> slightly shorter. In B. candida the flowers are slightly longer, lower part >> of corolla tube hidden in calyx tube, and the calyx tube split on one side. >> I am uploading the plant from California with the hope that similar may be >> uploaded from India also by some member. >> >> -- >> 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/ >> >> > > > -- > *Manudev K Madhavan* > Junior Research Fellow > Systematic & Floristic Lab, > Department of Botany, > Centre for Postgraduate Studies & Research > St. Joseph's College, Devagiri > Kozhikode- 673 008 > Mob: 9496470738 > >
