ID still pending !

Thank you.

Saroj Kasaju

On Fri, Dec 29, 2017 at 10:28 PM, Saroj Kasaju <[email protected]>
wrote:

> ID validation pending !
>
> Thank you.
>
> Saroj Kasaju
>
> On Thu, Sep 22, 2016 at 10:51 AM, J.M. Garg <[email protected]> wrote:
>
>> Thanks, Chadwell ji.
>> ---------- Forwarded message ----------
>> From: C CHADWELL
>> Date: 21 September 2016 at 23:27
>> Subject: Re: Fwd: [efloraofindia:251611] SK105SEP18-1016:ID
>> To: "J.M. Garg" <[email protected]>
>>
>>
>> *Clearly an Epilobium but another difficult genus. There are a number of
>> similar-looking, small-flowered*
>> *willowherbs found in Ladakh of which I understand E.royleanum to be the
>> commonest.  However, things*
>> *are not simple.  Excuse the lengthy comments which follow.*
>>
>> The two most distinctive 'Epilobiums' found in Ladakh are now within the
>> genus *Chamerion* (at one time spelt *Chamaernerion)*:
>>
>> *Chamerion angustifolium *known in the UK as 'Rosebay Willow Herb' or
>> 'Fireweed' - known in N.America as 'Dwarf Fireweed' or
>> 'River Beauty Willowherb' is gregarious by alpine watercourses.  In 'The
>> New of the British Isles' Stace keys Chamerion from Epilobium
>> on the basis of all the leaves being alternate, flowers held
>> horizontally, slightly zygomorphic, whereas in Epilobium at least the
>> lowest
>> leaves are opposite, flowers +/- erect when open, actinomorphic.  There
>> are other differences.
>>
>> Stace also observes for the genus *Epilobium* (in the UK), "*Plants vary
>> greatly in stature, leaf-size and degree of branching and*
>> *of pubescence but the type of hairs and certain aspects of leaf-shape
>> are relatively constant.  Seed coat ornamentation *
>> *is highly diagnostic, as is the presence of a terminal appendage, but a
>> high magnification (x> 20) is required".*
>>
>> Unless seeds are present (most Epilobiums are photographed when in
>> flower) this characteristic cannot be used to distinguish
>> between closely related species and even if one examined the plants with
>> a good hands lens, the magnification may not be sufficient
>> to check the detail.   This means in some cases pressed specimens which
>> can be examined under a higher magnification binocular
>> microscope may well be required to be certain, identification-wise.
>>
>> Stace also observes (for UK Epilobiums) that hybrids occur commonly where
>> 2 or more species occur together, especially
>> in quantity for several years in disturbed ground.....
>>
>> *So one can see this is rather complicated!  *The images shared do not
>> show much detail (the flowers are only in bud, not open).
>> Sometimes insufficient detail is visible from even the best, perfectly in
>> focus close-ups - which is why some plant taxonomists specialising in
>> particular genera or families require quality pressed specimen to provide a
>> reliable identifications.
>>
>> *Anyhow, what are the possibilities as to the species of Epilobium in
>> Ladakh?  Stewart ('An Annotated Catalogue of the Vascular Plants of
>> Pakistan &  Kashmir' 1972) lists 6 Epilobiums from Ladakh, whereas the most
>> up-to-date checklist for Ladakh by Klimes & Dickore lists 12.... **'Flowers
>> of the Himalaya' describe 7 (now 5) of c. 23 spp. but probably more are
>> recognised from the Himalaya nowadays.*
>>
>> Klimes (a Czech Republic botanist who undertook excellent field work in
>> Ladakh but sadly went missing and has not been found)
>> lists 5 species in what he described as 'lower' Ladakh (meaning the
>> places he explored that were not at high altitude). * Of these,*
>> *I understand E.royleanum to be the most widespread* with specimens
>> found in eroded stream banks, emerged bottoms, springs &
>> irrigation channels.  Stewart recorded it as very common, chiefly in the
>> temperate zone of N.Pakistan and Kashmir with a 19th
>> Century record in Nubra.
>>
>> The images posted do look close to the 2 small photos of *E.royleanum*
>> in 'Himalayan Plants Illustrated' (Yoshida, 2005) but this book
>> also has photos of *E.tibetanum* - not that I could distinguish between
>> the two on the basis of the photos.
>>
>> I do have a copy of the revision of ONAGRACEAE, the family to which
>> Epilobium belongs, for 'Flora of Pakistan' (which I cannot locate at
>> present but will check latter).  But not sure if it will help much or is
>> fully up-to-date.  There is the e-flora for Pakistan but this does not
>> contain all the detail within the printed versions.  RELYING UPON KEYS ONLY
>> TO DISTINGUISH BETWEEN SPECIES DOES NOT ALWAYS BRING A RELIABLE
>> IDENTIFICATION.
>>
>> *This is all I can do for the present, perhaps there is someone with
>> specialist knowledge of Epilobium who can say with confidence which species
>> the images are of? **I cannot at this point - sometimes it is just not
>> possible to tell similar species apart on the basis of*
>> *photos which do not show sufficient detail - or the genus needs further
>> study.*
>>
>>
>> Best Wishes,
>>
>>
>> Chris Chadwell
>>
>>
>> 81 Parlaunt Road
>> SLOUGH
>> SL3 8BE
>> UK
>>
>> http://www.shpa.org.uk/
>>
>>
>>
>>
>>
>>
>>
>>
>> ------------------------------
>> *From:* J.M. Garg <[email protected]>
>> *To:* efloraofindia <[email protected]>
>> *Cc:* Saroj Kasaju <[email protected]>
>> *Sent:* Tuesday, 20 September 2016, 1:45
>> *Subject:* Fwd: [efloraofindia:251611] SK105SEP18-1016:ID
>>
>> Thanks, Saroj ji
>> ---------- Forwarded message ----------
>> From: "Saroj Kasaju" <[email protected]>
>> Date: 18 Sep 2016 22:20
>> Subject: [efloraofindia:251611] SK105SEP18-1016:ID
>> To: "efloraofindia" <[email protected]>, "J.M. Garg" <
>> [email protected]>
>> Cc:
>>
>> Dear Members,
>>
>> Sharing some pictures for ID shot at Nubra Valley on 22 August 2014.
>>
>> My guess is some Epilobium sp.
>>
>> Thank you.
>>
>> Saroj Kasaju
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>>
>>
>>
>>
>> --
>> With regards,
>> J.M.Garg
>>
>> 'Creating awareness of Indian Flora & Fauna'
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>>
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>
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