







Thanks, Ashwini ji
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Forwarding again for Id assistance please.
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Thanks, Pam ji
This is Primula atrodentata.PamFrom: "J.M. Garg" <jmg...@gmail.com>
To: "efloraofindia" <indiantreepix@googlegroups.com>
Cc: "Ashwini Bhatia" <ash...@ashwinibhatia.com>
Sent: Thursday, November 17, 2016 3:13:19 AM
Subject: Fwd: [efloraofindia:256021] Primula for ID ABNOV2016/01
Thanks, Pam ji
Ashwini<_MG_1062_25Oct2016.jpg><_MG_1067_25Oct2016.jpg><_MG_1071_25Oct2016.jpg><_MG_1074_25Oct2016.jpg><_MG_1077_25Oct2016.jpg><_MG_1081_25Oct2016.jpg><_MG_1101_25Oct2016.jpg><_MG_1107_25Oct2016.jpg>
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--With regards,
J.M.GargFor identification, learning, discussion & documentation of Indian Flora, please visit/ join our Efloraofindia Google e-group (largest in the world- around 2700 members & 2,40,000 messages on 31.3.16) or Efloraofindia website (with a species database of more than 11,000 species & 2,20,000 images).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). You can also use them for free as per Creative Commons license attached with each image.Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of India'.
<_MG_1107_25Oct2016.jpg><_MG_1101_25Oct2016.jpg><_MG_1062_25Oct2016.jpg><_MG_1067_25Oct2016.jpg><_MG_1077_25Oct2016.jpg><_MG_1081_25Oct2016.jpg><_MG_1071_25Oct2016.jpg><_MG_1074_25Oct2016.jpg>
Forwarding again for Id confirmation or otherwise please.
Some earlier relevant feedback:
| This is Primula atrodentata. Pam
|
| Sorry, Pam but this does not appear to be Primula atrodentata, according to my understanding of what this species is - accepted I cannot say I am that familiar with it. |
IF the albeit brief description in 'Flowers of the Himalaya' is correct, what about the dense white or yellow farina which is meant to be on the undersides of the leaf? The foliage of Ashwini's plant does not match that of those you have named as P.atrodentata on Marijn van den Brink's Khumbu, Nepal site (I have only come across just now - I spent some time naming, as best I could, his images taken in Baltistan where there are wonderful shots of scenery and flowers, see: http://photos.v-d-brink.eu/Flora-and-Fauna/Asia/Pakistan-new/i-CBvDtHK) Next, what about the geographic and altitudinal ranges of this species - accepted that these are not set in stone? But as far as I know, it has not been recorded west of what was Kumaon. So IF you were correct, it would represent a Westerly extension of its range. As to altitude, it has not been recorded below 3600m, so 2900m is a fair bit lower. What about habitat? From what I can recollect, "alpine slopes" and "open peaty turf" fit with my experience of the plant but not where Ashwini found his plants. Flowers of Himalaya give May-June as flowering, though late flowerings do happen - even so. Mind you, high-altitude forms of what we think come within P.denticulata can flower much later. Then there is overall appearance. I first saw the species below Dhaulagiri ice-falls in Nepal (though not in flower). I did publish an image of what I understand to be this plant grown in New Mexico within the Himalayan Plant Association Journal and have another but would need to seek permission to post on eFI, which I shall endeavour to do. There are currently no images of P.atrodentata on the site. In the mean-time, may I draw members' attention to: http://elmer.rbge.org.uk/bgbase/vherb/bgbasevherb.php?current__names_family=¤t__names_genus=Primula¤t__names_species=atrodentata&coll__name=&coll_num=&specimens_barcode=&full__name=&specimens_region=&cfg=bgbase%2Fvherb%2Fbgbasevherb.cfg which is a photo of P.atrodentata taken by Adam Stainton in Nepal. I am sure you will agree this does not match Ashwini's plant. Also: http://elmer.rbge.org.uk/bgbase/vherb/bgbasevherb.php?cfg=bgbase/vherb/zoom.cfg&filename=E00024425.zip&queryRow=6 The great thing about the Edinburgh scans is that provided you download at high resolution you can zoom in to see a high level of detail. Unfortunately, the digitised images from the Kew herbarium are low resolution, so one can usually only make out the 'habit' of a plant. Frustrating! Overall, I wonder about Primula denticulata. It seems to vary considerably. The examples I saw in Bhutan had a different general appearance to those from Western Himalaya. As you know, Professor Richards has recognised P.cachemirica as a separate species. Perhaps other taxa will be recognised in the coming years. I have images of a number of 'denticulata-like' Primulas I struggle to assign an identification to. Given its considerable altitudinal and geographic range it would come as no surprise if other taxa were recognised, whether at varietal, subspecies or species level. At present we are left to try and fit all variants into existing species.... So, please inspect Ashwini's images again. Best Wishes, Chris Chadwell |
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Thank you for critical comments. |
|
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Thanks a lot, Pam ji
Hi All,
Thanks Chris for the discussion.
I am quite happy to be wrong. I think from what you are saying, you are OK with it being identified as belonging to the Denticulata Section.
I have updated the webpage on Primula World for P. atrodentata – you may have to refresh your web browser if you have been there recently in order to see the changes. The images include those from Marijin who has given me permission to publish his images and also a couple of images at the end which I recently took at a reputable nursery in Scotland. As expected, there is quite a bit of variation. http://www.primulaworld.com/PWweb/photogallery.htm I am sorry that some of the links won’t work as RBGE has yet to update their links to correspond with the new website at NHM where some of the references are stored. This won’t happen until the new year.
Primula atrodentata is similar to P. denticulata but “a much smaller plant, evergreen, winter buds and persistent bud scales absent” (Flora of Bhutan). As you would expect it is difficult to distinguish P. atrodentata from small forms of P. denticulata as images, when the basal scales (or absence) are not shown, especially when looking at an individual plant. An indication that the population is consistently small is a help but not necessarily a foolproof indicator. I recently was at the herbarium at the Royal Botanic Garden Edinburgh and the attached sheet is the only dwarf P. denticulata that resembles P. atrodentata, but as you can see, the basal scales are very prominent.
Though the Flowers of the Himalaya is a good reference, it isn’t definitive, being necessarily brief. If you consult other references (Smith & Fletcher, Richards, Flora of China, Flora of Bhutan, Genus Primula in India, etc) you will find that the leaves are described as scabrid glandular, sometimes white or yellow farinose underneath but not always so. The herbarium sheet of P. atrodentata at E shows some farina underneath but not copious amounts. http://data.rbge.org.uk/herb/E00024426 . Smith & Fletcher give the altitudinal range as 3000-5300m. I can’t find the habitat information given by Ashwini. I don’t think the later flowering is of consequence as it does look like a dormancy break, as mentioned already. I have three images included on the P. atrodentata webpage which were taken at Rupin Pass. These could be P. denticulata, but I included them under that name as there is no indication of basal scales and the plants are small. There can be no certainty when the images do not show clear evidence!
Yes, Richards listed P. cachmeriana (which was described from cultivated plants) separately in his monograph 13 years ago, but John and I have since discussed that further, with plants before us, and have agreed that unless more evidence can be found in the wild, it probably isn’t distinct. At present, I do list it separately on Primula World, though there is no clear evidence for assigning the images as such.
P. denticulata has been split many times before. Smith & Fletcher give 11 synonyms. Smith & Forrest recognised 8 subspecies.
Best Wishes,
Pam
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