Solanaceae Week: Brugmansia candida from California

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Gurcharan Singh

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05-Apr-2011, 4:03:13 am05/04/11
to efloraofindia
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/

Brugmansia-candida-California-1.jpg
Brugmansia-candida-California-2.jpg
Brugmansia-candida-California-3.jpg

manudev madhavan

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05-Apr-2011, 4:39:01 am05/04/11
to Gurcharan Singh, efloraofindia
Sir ji,

How can we differentiate Brugmansia from Datura???
--
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

Muthu Karthick

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05-Apr-2011, 5:01:29 am05/04/11
to manudev madhavan, Gurcharan Singh, efloraofindia
Same question from too. Are these synonyms?
--
Muthu Karthick, N
Care Earth Trust
#15, second main road,
Thillai ganga nagar,
Chennai - 600 061
Mob: 0091 96268 33911
www.careearthtrust.org

Gurcharan Singh

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05-Apr-2011, 5:02:10 am05/04/11
to manudev madhavan, efloraofindia
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 <manudevk...@gmail.com> wrote:

Gurcharan Singh

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05-Apr-2011, 5:03:16 am05/04/11
to Muthu Karthick, manudev madhavan, efloraofindia
All former woody species of Datura are now synonyms of Brugmansia


-- 
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 madhavan

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05-Apr-2011, 5:05:47 am05/04/11
to Gurcharan Singh, Muthu Karthick, efloraofindia
Thanks sir ji

Padmini Raghavan

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05-Apr-2011, 5:25:19 am05/04/11
to Gurcharan Singh, efloraofindia
Hi All,
 Here are my pics of a street tree in Bangalore.
I think this variety is called "Grand Marnier", probably because of the orange tones.
Regards,
Padmini Raghavan.

On Tue, Apr 5, 2011 at 1:33 PM, Gurcharan Singh <sing...@gmail.com> wrote:
Morning walk in Bang on 13-11-10 058.jpg
Morning walk in Bang on 13-11-10 060.jpg
Morning walk in Bang on 13-11-10 061.jpg

Gurcharan Singh

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05-Apr-2011, 6:16:08 am05/04/11
to Padmini Raghavan, efloraofindia
Padmini ji
This does not look like Grand Marnier which is a cultivar of B. candida and has yellowish flowers


This one seems to be a cultivar of B. suaveolens. Note narrowed basal portion above calyx and toothed calyx not parted 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/ 

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