Hooghly : Sagittaria sp.

[surajit koley]

This is a smaller species, from the same place, of the same family I have uploaded yesterday. Photographs were taken from a considerable distance, so cannot provide stats.

Flora of British India describes two species - 1) S. sagittifolia L. and 2) S. guayanensis H. B. & K.

Our group has accepted three species, in addition to above two S. trifolia L.

Would very much appreciate if members/experts provide differences between sagittifolia & trifolia.

However. FoP & FoC has some info.

So has IUCN.

Thank you

Regards

[J.M. Garg]

Thanks, Surajit ji,

It appears like Arrowhead (Sagittaria sagittifolia)

For S. trifolia L., pl. see FOC illustration & this one (FOC)

GRIN (2012) treats Sagittaria trifolia L. = Sagittaria sagittifolia subsp. leucopetala (Miq.) Hartog

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[surajit koley]

Thank you Garg Sir, but my question was how do you differentiate between sagittifolia & trifolia?

Regards

[J.M. Garg]

---------- Forwarded message ----------
From: Bimal Sar kar <bima...@gmail.com>
Date: 15 November 2014 20:43
Subject: Re: [efloraofindia:205719] Hooghly : Sagittaria sp.
To: "J.M. Garg" <jmg...@gmail.com>

To me it seems to be Sagittaria sagittifolia.

[surajit koley]

Many thanks to Bimal Da, but strangely enough IUCN doesn't list India as its geographic range. Perhaps what we have in India is Sagittaria trifolia L. or more precisely S. trifolia ssp. trifolia.

Thank you

Regards

[Ushadi Micromini]

Surajit

if taxonomists go and retrieve these specimen and classify and declare it to be Sagittaria sagittifolia then IUCN will have to correct its database...

just because its not listed in one site does not mean it does not exist...

just like some cancers or some infections ... just like 100 years ago nobody believed that men get carcinoma of the breast, it just did not exist, it was not on the list... but now we know its common ... and so is now on the list...

lists dont mean anything ... if they are not constantly updated...

we can not change our diagnosis just because some list does not list it...

lists can always be changed, deleted or added to...

what it needs is some body knowledgeable, who  has to make a proper diagnosis...

and in this case it might just be that you are the chosen instrument to bring it to light...  to attention of  a some real botanically vigorous study group...

usha di

Usha di
===========

[surajit koley]

Didi,

this is what FoP thinks - "It differs from the European and North Asian Sagittaria sagittifolia Linn. in having pure white petals with no basal purple spot, yellow rather than purple anthers, reflexed rather than spreading sepals and very acute rather than blunt tips to the basal lobes of the leaf which are often longer than the blade."

And this is what FoC thinks - "Most specimens determined as Sagittaria sagittifolia are, in fact, this taxon."

Thank you

Regards

[Ushadi Micromini]

ok, got the point

thanks

usha di

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Usha di
===========

[surajit koley]

Now we have BSI checklist, it says what we have is S. trifolia L., not S. sagittifolia L.

Thank you

Regards

surajit koley

a non-botanist member of

efloraofIndia google group

[Saroj Kumar Kasaju]

Nepali Name : कानपाते  Kaanapaate 

Thank you

Saroj Kasaju