I just got hold of a recent detailed study from Taiwan 'Notes on Acmella
(Asteraceae: Heliantheae) from Taiwan published in Journal Botanical studies
Vol: 49:73-82, 2008, authored by Kuo-Fang CHung1, Yoshiko KOnO1, Chiu-Mei
WANG2, and Ching-I PeNG1,*
If this detailed study is followed Satish ji's plant should be paniculata
and not Acmella ciliata (syn: Spilanthes ciliata). The ray florets (and not
petals) are not to be found even in the youngest head. The species of this
group have been much confused, and this study seems to have tried to sort
out the things. A. ciliata has radiate heads and leaves rounded, truncate or
cordate at base. This specimens has clearly cuneate leaf base.
Two days back I also collected a specimen from same genus. After
detailed study I have identified it has A. uliginosa. I will upload it
separately.
Here is the key from the Paper:
1. Capitula discoid (without ray florets).
2. Leaves ovate to deltoid, leaf bases broad obtuse,
truncate to slightly cordate; capitula cylindric, more
than 1 cm wide; involucral bracts 15-18, triseriate;
mature achenes without evident cork-like margins .....
............................................................ 3. A. oleracea
2. Leaves lanceolate, elliptic to narrowly ovate, leaf
bases attenuate or cuneate; capitula cone-shaped, less
than 1 cm wide; involucral bracts 9-12, biseriate;
mature achenes with evident cork-like margins ..........
........................................................... 4. A. paniculata
1. Capitula radiate (with ray florets).
3. Leaves ovate to deltoid, leaf bases broad obtuse,
truncate to slightly cordate; capitula ovoid; mature
achenes with evident cork-like margins ......................
................................................................ 2. A.
ciliata
3. Leaves lanceolate, elliptic to narrowly ovate, leaf
bases attenuate or cuneate; capitula cone-shaped;
mature achenes without evident cork-like margins.
4. Disc florets 4- or 5-merous, corollas light yellow
or greenish, ray florets relatively inconspicuous;
involucral bracts 7-11, biseriate; achenes of disc
florets 1.5-3 mm long .............. 1. A. brachyglossa
4. Disc florets 4-merous, corollas yellow to orange,
ray florets conspicuous; involucral bracts 5-6,
uniseriate; achenes of disc florets 1.2-1.8 mm long
....................................................... 5. A. uliginosa
--
Dr. Gurcharan Singh
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 Mon, Nov 23, 2009 at 7:16 PM, Gurcharan Singh <[email protected]> wrote:
> Can some one please inform me the difference between Spilanthes oleracea,
> S. paniculata and S. cilata, now correctly known as Acmella oleracea,
> Acmella paniculata and A. ciliata, respectively. Spilanthes acmella is now
> placed in distinct genus Blainvillea (B. acmella).
>
>
> --
> Dr. Gurcharan Singh
> 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 Mon, Nov 23, 2009 at 7:06 PM, Satish Phadke <[email protected]>wrote:
>
>> Yes I also think it is more likely to be *Spilanthes ciliata*
>>
>> 2009/11/18 Dr Santhosh Kumar <[email protected]>
>>
>> I doubt it is Spilanthes ciliata not S. acmella
>>>
>>>
>>> Santhosh
>>>
>>>
>>> On 16/11/2009, Satish Phadke <[email protected]> wrote:
>>>
>>>> Are these full flowers or the petals have been shed? I am in doubt
>>>> Mahabaleshwar Nov 2009
>>>> Satish
>>>>
>>>> --
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>>>>
>>>
>>>
>>> --
>>> SANTHOSH
>>> ------------------------------------------
>>> Dr. E.S. Santhosh Kumar
>>> Tropical Botanic Garden and Research Institute, Palode
>>> Thiruvananthapuram-695562
>>> Kerala
>>> India
>>> www.drsanthosh.wetpaint.com
>>>
>>
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>
>
> x
>
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