Thanks to Manudev ji and Garg Sir. BSI checklist for this region can be viewed at https://groups.google.com/d/msg/indiantreepix/rYFxY20DU3g/8-oX_700FwAJ. As per per the checklist above *C. diffusa Burm. f. not to be found in this region* - http://efloraindia.nic.in/efloraindia/speciesDesc_PCL.action?species_id=2483 . Even if we assume that the *BSI checklist is outdated*, and *C. diffusa* later finds its way to south Bengal also, I doubt if such an introduced (in this region) species can be so pervasive. In fact this is the most common *Commelina* thriving everywhere in SINGUR, HARIPAL, DANKUNI, CHANDITALA blocks of Hooghly districts. Presently the species is not in flowering state. Only one or two can be seen in one or two population. All my previous uploads of this species in this group and in facebook group (4 years ago) had been identified as *diffusa*!
Now, something about Manudev Ji's points (ruling out *caroliniana* Walter) - 1. no where it was/is mentioned that *caroliniana* cannot have an upper cincinnus. Instead what author noted in his paper is "upper cyme *usually* vestigial (rarely well developed and 1-flowered)." The same has been copied in FoNA <http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=107770#KEY-1-4>. Against this FBI, Bengal Plants, of-course outdated, noted "upper cymes 2-4 flowered.". The author's view in the paper (page 45) I referred can also be taken account in this regard. 2. no where I could find mention of *spathe in caroliniana is serrulate*! 3. *spathe of caroliniana "*margins distinct,* usually cilliate,* apex acuminate, *glabrous* or very sparsely pilose <http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=222000037>." If, based on the above 3 points, we want to negate the probability of this species being *hasskarlii* (*caroliniana*) *yet accepting the probability of **diffusa* as Manudev Ji has indicated we need to see/read the *author's view* in the paper I referred - *"... Although a detailed comparision between C. caroliniana and C. diffusa and the variation exhibited by these species in the United States will be the subject of another paper, specimens of the two species can be separated by the following key :* - Spathes not all to slightly falcate;* upper cyme usually vestigial (rarely.....)....* capsules....* .... C. caroliniana* - Spathes usually distinctly falcate;* upper cyme in larger spathes usually well developed and 1-several-flowered; *capsules.*.. C. diffusa* Interesting ..... until we examine a number of spathes and cymes at different locations of several populations!!! (as for naming convention* I followed BSI checklist which doesn't mention caroliniana*) (*as for benghalensis I mentioned it in the initiating post itself !!!*) Thank you Regards (simply) surajit koley ! no "Sir", no "Dr.", no "Ji" ! On Mon, Sep 28, 2015 at 4:56 PM, J.M. Garg <[email protected]> wrote: > Thanks, Manudev ji. > > ---------- Forwarded message ---------- > From: manudev madhavan > Date: 28 September 2015 at 16:48 > Subject: Re: [efloraofindia:231355] sk2015sept08/08 - Commelina sp. on the > bank of the pond > To: "J.M. Garg" <[email protected]> > > > This species is very close to *Commelina diffusa* Burm f. > I can rule out the possibility of *Comelina caroliniana* Walter (or *Commelina > hasskarli *C.B.Clarke) because of two reasons > 1. It is very clear that, this species has an upper cincinnus > 2. Spathe is glabrous as opposed to serrulate to pubescent spathe. > > Also, *Comelina caroliniana *Walter (Fl. Carol. 68. 1788) is the *correct > name* since the *name has priority* over *Commelina hasskarli *C.B.Clarke > (Commelyn. Cyrtandr. Bengal 13, t.3. 1874). A careful reading of the > abstract of the paper would have helped 😊 > > NB: There is one more species of *Commelina *in this post. > Image number P1160722 has *Commelina benghalensis* (right side) in > addition to the species in quiry. > > > On Mon, Sep 28, 2015 at 4:20 PM, J.M. Garg <[email protected]> wrote: > >> Forwarding again for validation please. >> >> Some earlier relevant feedback: >> >> Isn't it *Commelina forsskalii *? >> Regards, >> Shobha >> >> Thank you very much Madam for the suggestion. But, I simply do not know >> how to identify a *Commelina*. The problem is BSI restricts the >> distribution of *C. forsskalaei* Vahl. in the Peninsular and NW India. >> Regards >> surajit >> >> *Commelina* *diffusa* Burm.f. >> <https://www.google.com/url?q=https%3A%2F%2Fsites.google.com%2Ftpl%2Frecord%2Fkew-233842&sa=D&sntz=1&usg=AFQjCNFisZoRRxh6GjYRG8fSkBzWQ20WJA>,- >> from Santhan ji. >> Many many thanks Santhan Ji. If BSI checklist >> <http://efloraindia.nic.in/efloraindia/speciesDesc_PCL.action?species_id=2483> >> didn't prevent me I would have very much identified it with the same taxon >> you have suggested. >> There is very much confusion between *C. diffusa* Burm f. and *C. >> caroliniana* Walter (in US). *C. caroliniana* is conspecific with *C. >> hasskarlii* of India - >> http://www.jstor.org/stable/1220885?seq=1#page_scan_tab_contents. >> This species is *C. hasskarlii* C. B. Clarke. >> Attached here relevant docs (downloaded from the net) for your perusal >> and further opinion. >> Thank you >> Regards >> surajit koley >> >> >> ---------- Forwarded message ---------- >> From: surajit koley <[email protected]> >> Date: 9 September 2015 at 00:04 >> Subject: [efloraofindia:231355] sk2015sept08/08 - Commelina sp. on the >> bank of the pond >> To: efloraofindia <[email protected]> >> >> >> These photographs were recorded on 02-Sept-2015 and today. This species >> is thriving on the bank of ponds, village drainage, even on sides of >> railway tracks, possibly in damp soil. >> >> Branching and rooting at nodes. >> >> Flowers are the size of *C. benghalensis* as can be seen in the last pic >> (flowers in right is *C. benghalensis*) where two species growing side >> by side. Leaves are upto 7.5 cm long and 2 cm wide. Only a very few leaves >> are narrower than this. This species doesn't flower much, only a very few >> shoots bear flower. >> >> Please help. >> >> Thank you >> Regards >> >> -- >> You received this message because you are subscribed to the Google Groups >> "efloraofindia" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To post to this group, send email to [email protected]. >> Visit this group at http://groups.google.com/group/indiantreepix. >> For more options, visit https://groups.google.com/d/optout. >> >> >> >> -- >> With regards, >> J.M.Garg >> >> 'Creating awareness of Indian Flora & Fauna' >> <http://en.wikipedia.org/wiki/User:Jmgarg1> >> The whole world uses my Image Resource >> <http://commons.wikimedia.org/wiki/Category:J.M.Garg> 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. >> >> For identification, learning, discussion & documentation of Indian Flora, >> please visit/ join our Efloraofindia Google e-group >> <https://groups.google.com/forum/#!forum/indiantreepix> (largest in the >> world- more than 2500 members & 2,25,000 messages on 18.6.15) or >> Efloraofindia >> website <https://sites.google.com/site/efloraofindia/> (with a species >> database of more than 11,000 species & 2,00,000 images). Winner of >> Wipro-NFS Sparrow Awards 2014 for efloraofindia >> <https://sites.google.com/site/efloraofindia/award-for-efloraofindia>. >> >> Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of >> India'. >> > > > > -- > *Manudev K Madhavan* > Assistant Professor, > Department of Botany, > St. Joseph's College > Medical College P.O. > Kozhikode- 673 008 > Mob: 9496470738 > http://manudevkmadhavan.wix.com/manudev > > > > -- > With regards, > J.M.Garg > > 'Creating awareness of Indian Flora & Fauna' > <http://en.wikipedia.org/wiki/User:Jmgarg1> > The whole world uses my Image Resource > <http://commons.wikimedia.org/wiki/Category:J.M.Garg> 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. > > For identification, learning, discussion & documentation of Indian Flora, > please visit/ join our Efloraofindia Google e-group > <https://groups.google.com/forum/#!forum/indiantreepix> (largest in the > world- more than 2500 members & 2,25,000 messages on 18.6.15) or Efloraofindia > website <https://sites.google.com/site/efloraofindia/> (with a species > database of more than 11,000 species & 2,00,000 images). Winner of > Wipro-NFS Sparrow Awards 2014 for efloraofindia > <https://sites.google.com/site/efloraofindia/award-for-efloraofindia>. > > Also author of 'A Photoguide to the Birds of Kolkata & Common Birds of > India'. > -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. 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