Ushadi
Luckily you can distinguish them from vegetative plants and flowers also.
1. Plants glabrescent; calyx 5-angled; corolla less than 12 cm long;
leaves sinnuate-dentate, anthers less than 5 mm long
(capsule erect, 4-valved, with stout up to 5 mm long prickles)...D.
stramonium
1a. Plants glabrescent or hairy; calyx cylindrical; corolla
more than 12 cm long; leaves entire or sinuate but not
dentate, anthers longer than 1 cm (capsule deflexed, irregularly
dehiscent)... 2
2. Plants gladular-pubescent, not purple; calyx 8-10 cm long; corolla 15-18
cm long, anthers 10-17 mm long (capsules deflexed, covered with slender
prickles, pubescent, irregularly dehiscent)......................D.
inoxia
2a. Plants glabrescent, often purple; calyx 4-9 cm long; corolla 14-20
cm long; anthers 10-12 mm long (capsule deflexed, with short
broad-based short prickles, irregularly dehiscent)...............D.
metel
--
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://www.gurcharanfamily.com/
http://people.du.ac.in/~singhg45/
On Sun, Dec 30, 2012 at 6:58 AM, Ushadi Micromini <[email protected]
> wrote:
> *Guracharanji:*
> so does it mean one needs to wait till fruits develop and finally burst
> open to get an exact classification in case of DATURA?
>
>
> *Surajit:* nice pics
> Usha di
>
>
> On Sat, Dec 29, 2012 at 11:23 PM, surajit koley <
> [email protected]> wrote:
>
>> Sir,
>>
>> "Bengal Plants" describes three *Datura* species :-
>>
>> Capsule opening irregularly near apex, usually pendent -
>> flowers more or less purple ................ *fastuosa*
>> flowers white or cream-coloured .......... *fastuosa* var. *alba*
>> Capsule deeply 4-valved almost to the base, erect; flowers purple
>> *stramonium*
>> var.
>> *tatula*
>>
>> I think this species is *Datura fastuosa* var.
>> *alba*<http://www.theplantlist.org/tpl/record/kew-2757780>
>> = *Datura metel*
>> Linnaeus<http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200020519>
>> .
>>
>> Regards,
>>
>> surajit
>>
>> --
>>
>>
>>
>>
>
>
>
> --
> Usha di
> ===========
>
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