This question was actually for Usha di
Now I understood after Gurcharanji's reply.
The common name Japanese maple includes at least two botanically named
species
*Acer japonicum* and *Acer palmatum* which again has 3 recognized subspecies
and many cultivars....(Wikipedia)

   - *Acer palmatum* subsp. *palmatum*. Leaves small, 4–7 cm wide, with five
   or seven lobes and double-serrate margins; seed wings 10–15 mm. Lower
   altitudes throughout central and southern Japan (not Hokkaido).
   - *Acer palmatum* subsp. *amoenum* (Carrière) H.Hara. Leaves larger,
   6–12 cm wide, with seven or nine lobes and single-serrate margins; seed
   wings 20–25 mm. Higher altitudes throughout Japan and South Korea.
   - *Acer palmatum* subsp. *matsumurae* Koidz. Leaves larger, 6–12 cm wide,
   with seven (rarely five or nine) lobes and double-serrate margins; seed
   wings 15–25 mm. Higher altitudes throughout Japan

           Dr Phadke

On Tue, Aug 16, 2011 at 3:46 PM, Gurcharan Singh <singh...@gmail.com> wrote:

> Satish ji
> There are at least two species of Japanese maples: Acer japonicum and Acer
> palmatum
>
> More accurately, however, Acer japonicum is downy Japanese maple, and Acer
> palmatum as Smooth Japanese maple.
>
>
>
> --
>
> 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, Aug 16, 2011 at 3:29 PM, Satish Phadke <drsmpha...@gmail.com>wrote:
>
>> I didn't understand the meaning of your sentence
>> " *This NOT the japanese maple... this is one of the japanese maples...*"
>> Will you please elaborate again in simple words.
>> Dr Phadke
>>
>>
>> On Sun, Aug 14, 2011 at 11:55 PM, Ushadi micromini <
>> microminipho...@gmail.com> wrote:
>>
>>>
>>> This NOT the japanese maple... this is one of the japanese maples...
>>> original Japanese maple introduced  has leaves, smaller of course, but
>>> identifiable in shape and outline as typical maple...
>>> this tree's leaves are (for lack of technical term) deeply lobated....
>>> almost like fingers....
>>> this Acer palmatum is often a subject of Bonsai makers...
>>>
>>> Usha di
>>> ===
>>>
>>>
>>>
>>> On Aug 14, 7:41 pm, Tanay Bose <tanaybos...@gmail.com> wrote:
>>> > Yes this is Acer palmatum commonly known as Japanese maple
>>> > very common garden plant in north america ...
>>> > Tanay
>>> >
>>> >
>>> >
>>> > On Sun, Aug 14, 2011 at 3:52 AM, Gurcharan Singh <singh...@gmail.com>
>>> wrote:
>>> > > I hope Acer palmatum
>>> >
>>> > > --
>>> > > 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 Sun, Aug 14, 2011 at 3:48 PM, ranjini kamath <ranjin...@gmail.com
>>> >wrote:
>>> >
>>> > >> Request ID of this plant.Looks like a dwarf variety.The leaves had
>>> > >> dried in March but the plant burst into foliage mid-April.
>>> > >> Date/Time - 27-04-11/around 7am
>>> > >> Location - Los Altos,California
>>> > >> Habitat - Garden
>>> > >> Plant Habit - Dwarf tree [ ? ]
>>> > >> Ht - 41/2'
>>> > >> Flowers,Fruits not seen in March-April
>>> > >> Leaves about 6'' across
>>> > >> Thank you
>>> > >>      Ranjini Kamath
>>> >
>>> > --
>>> > *Tanay Bose*
>>> > Research Assistant & Teaching Assistant.
>>> > Department of Botany.
>>> > University of British Columbia .
>>> > 3529-6270 University Blvd.
>>> > Vancouver, B.C. V6T 1Z4 (Canada)
>>> > Phone: 778-323-4036 (Mobile)
>>> >            604-822-2019 (Lab)
>>> >            604-822-6089  (Fax)
>>> > ta...@interchange.ubc.ca
>>> > *Webpages:*
>>> http://www.botany.ubc.ca/people/mberbee.htmlhttp://www.botany.ubc.ca/people/gradstud.htmlhttps://sites.google.com/site/efloraofindia/
>>
>>
>>
>
>
>

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