This does seem to fit Sagina and the obvious species is *S.saginoides* (L.) 
Karst.  which was called *S.procumbens* in FBI and this is what Collet
named it in 'Flora Simlensis' - remarking it was found at Shimla and 
Narkunda on gravell walks and road-sides being the same as 'Pearlwort' in 
Britain.

However, this is where it gets more complicated.

Stewart listed the plant as *S.saginoides* with *S.procumbens* of FBI non. 
L as a synonym.  i.e. *S.procumbens* L. - the 'Procumbent Pearlwort' being a
separate species.  He recorded as common in Pakistan & Kashmir from 
1500-4200m incl, Ladakh.

Both are accepted names and we have both in the UK.  *S.procumbens* is 
common throughout the UK in paths, lawns, ditch-sides & short turf - it is 
even found
just 50 metres from where I type in gaps in pavement.  Whereas 
*S.saginoides* is a rare arctic-alpine plant of barish ground and rock 
ledges on mountains in Scotland.

*Makes me wonder if the two separate species might not have been mixed up 
in the past?  Collet certainly thought they were the same species but thata 
is not the case.  Interestingly the 'Scottish Pearlwort' is recognised 
which is a hybrid between the two species!*


*In the UK (whether this applies in India I do not know) they can be 
separated by the usually 4-merous flowers & 4 stamens with petals minute or 
0 in S.procumbens (I certainly remember struggling to detect any petals in 
a specimen from my road even with a hand lens) whereas the flowers of 
S.saginoides  are usually 5-merous, sometimes 4-merous, stamens 10, rarely 
8, petals +/- obvious and generally a more upright plant.*

*Collet describes petals & sepals as 4 or 5!  Flowers very small, white.  
Stamens 4 or 5. *

*As to the single image taken at Narkund (please, please take more than one 
shot per plant, several, as explained) - there are only capsules to be 
seen, though it appears there are 5 sepals.  Would the serious botanists 
amongst you look out for this plant on future trips to Narkanda or Simla or 
presumably lots of other places and with the aid of the hand lenses I am 
encouraging everyone to carry with them when looking at and photographing 
flowers, please check the number of stamens and how distinct the petals are 
on future occasions.*

Perhaps both species occur in the hills and mountains of India with the 
habitat helping to distinguish between them, rather than one?

In the UK it is easy.  Unless one is in the mountains of Scotland then 
*S.saginoides* is not a possibility.   But this level of familiarity with 
our flora is a result of thousands of active field botanists exploring all 
over the Britain over a period of 2-3 centuries.


On Monday, October 24, 2016 at 4:49:26 PM UTC+1, Anil Thakur wrote:

> Kindly identify 
> Herb 
> October 23, 2016 
> Place: Narkanda, Shimla, India 
> Altitude: 8700- 8800 feet 
> -- 
> With best Regards, 
>
> Dr. Anil Kumar Thakur 
>

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