The keys used in the past to distinguish between R.webbiana and R.macrophylla 
are out-of-date and I doubtthey are of much use.
Flowers of the Himalaya (itself now out-of-date) described the hips of Rosa 
webbiana as ovoid to flask-shaped.  Theauthors also said of R.macrophylla, 
"there are many forms, some hardly distinguishable from R.webbiana".
I doubt very much if e.g. the key in 'Flora of Lahaul-Spiti' which separates 
the two solely on the basis of length of leavesand number of leaflets was ever 
valid.  Too simplistic.
So I feel that further study of Roses in the Himalaya is required.  The local 
floras cannot be relied upon.   

Best Wishes,

Chris Chadwell

81 Parlaunt Road 
SLOUGH
SL3 8BE
UK

www.shpa.org.uk





      From: Anil Thakur <[email protected]>
 To: J.M. Garg <[email protected]> 
Cc: efloraofindia <[email protected]>; 
[email protected]; gurinder <[email protected]>
 Sent: Thursday, 26 January 2017, 9:36
 Subject: Re: [efloraofindia:231475] Rosaceae Fortnight-Rosa webbiana from 
Himachal-GSG04/Sept 2015
   
KEY FROM FLORA OF KULLU DISTRICT

Leaves 8-15 cm long, leaflets 7-11:  R. macrophylla
Leaves 2-3 cm long, leaflets 5-9:  R. webbiana

Regards


On 1/25/17, J.M. Garg <[email protected]> wrote:
> Forwarding again for Id confirmation or otherwise please.
>
> Some earlier relevant feedback:
>
> Fine photographs but are they actually a xerophytic form of Rosa
> macrophylla, rather than  R.webbiana?  I am uncertain.  - from Chadwell
> ji
>
> ---------- Forwarded message ----------
> From: gurinder goraya <[email protected]>
> Date: 10 September 2015 at 21:53
> Subject: [efloraofindia:231475] Rosaceae Fortnight-Rosa webbiana from
> Himachal-GSG04/Sept 2015
> To: indiantreepix <[email protected]>
>
>
> Dears,
>
> The last of the four species of native Rose found wild in Himachal
> Pradesh. *Rosa
> webbiana*, found mainly in trans-Himalayan region in the State. The
> following pics are from Kinnaur, Lahaul Spiti with one pic also from
> Ladakh.
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
> Regards,
>
> Dr. G S Goraya, IFS
> Deputy Director General (Research),
> Indian Council of Forestry Research & Education,
> New Forest P.O., Dehradun - 248006.
> (Uttarakhand, India)
> Tel. (+91-941-802-5036)
>
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>
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-- 
With best Regards,

Dr. Anil Kumar Thakur


   

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