To check further Sempervivum montanum has leaves hairy on surface, S.
tectorum leaves are totally glabrous. both have 10-20 petals and twice as
many stamens as against only 5 calyx and corolla lobes and 10 stamen in
Echeveria.

-- 
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 Wed, Oct 31, 2012 at 12:02 AM, Gurcharan Singh <[email protected]>wrote:

> Aarti ji if you look at leaves in Echeveria elegans the leaves are almost
> rounded with no cusp at tip, whereas in Sempervivum montanum the leaves
>  are oblanceolate the tips cuspidate. The real differences are in flowers:
>
> Echeveria: Corolla gamopetalous (petals united at base), corolla lobes
> thick and fleshy, stamens 10
> Sempervivum: petals free, not thick, stamens more than 10
>
> --
> 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 Tue, Oct 30, 2012 at 11:29 PM, Aarti S. Khale <[email protected]>wrote:
>
>> Gurcharan ji, Garg ji, Usha di,
>> I am confused.
>> Similar looking succulent which I have photographed before in a Nasik
>> nursery and which is on flowersofindia.net site has been identified as
>> Echeveria elegans, common names Mexican Snowball, Hen and Chicks.
>> How do you differentiate between Echeveria and Sempervivum?
>> For a non botanist like me, both look the same.
>> Regards,
>> Aarti
>>
>>
>> On Wed, Oct 31, 2012 at 10:11 AM, Gurcharan Singh <[email protected]>wrote:
>>
>>> Most likely Sempervivum montanum
>>>
>>>
>>> --
>>> 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 Tue, Oct 30, 2012 at 10:44 PM, jmgarg1 <[email protected]> wrote:
>>>
>>>> Hi, Aarti ji,
>>>> What is the bot. name ?
>>>>
>>>> On 24 October 2012 20:02, Aarti S. Khale <[email protected]> wrote:
>>>>
>>>>> Usha di,
>>>>> Thanks for the id.
>>>>> Now I recollect, I have photographed this before in a nursery in Nasik.
>>>>> My picture is on 'Flowersofindia' site.
>>>>> Thanks for reminding me.
>>>>> Regards,
>>>>> Aarti
>>>>>
>>>>>
>>>>> On Wed, Oct 24, 2012 at 4:41 PM, ushadi Micromini <
>>>>> [email protected]> wrote:
>>>>>
>>>>>> yes
>>>>>> called hens and chicks... as in mother and kids
>>>>>> usha di
>>>>>>
>>>>>> On Sat, Oct 20, 2012 at 10:32 PM, Aarti S. Khale <
>>>>>> [email protected]> wrote:
>>>>>>
>>>>>>> A small ornamental, succulent seen at Pahalgam on 7/9/2011.
>>>>>>> Echeveria species?
>>>>>>>  Aarti
>>>>>>>
>>>>>>>  --
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Usha di
>>>>>> ===========
>>>>>>
>>>>>>
>>>>>  --
>>>>>
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>> --
>>>> With regards,
>>>> J.M.Garg
>>>> http://en.wikipedia.org/wiki/User:Jmgarg1
>>>> 'Creating awareness of Indian Flora & Fauna'
>>>> The whole world uses my Image Resource of more than a *thousand species
>>>> * & eight thousand images of Birds, Butterflies, Plants etc. (arranged
>>>> alphabetically & place-wise):
>>>> http://commons.wikimedia.org/wiki/Category:J.M.Garg. You can also use
>>>> them for free as per Creative Commons license attached with each image.
>>>> For identification, learning, discussion & documentation of Indian
>>>> Flora, please visit/ join our Efloraofindia Google e-group:
>>>> http://groups.google.co.in/group/indiantreepix (more than 1980 members
>>>> & 1,33,000 messages on 30/9/12) or Efloraofindia website:
>>>> https://sites.google.com/site/efloraofindia/ (with a species database
>>>> of more than 7500 species).
>>>> Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of
>>>> India'.
>>>>
>>>>  --
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>
>
>
>
>

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