This is *R. tuberosa* L., a naturalised species throughout India <http://efloraindia.nic.in/efloraindia/speciesDesc_PCL.action?species_id=863> . So, threads with similar looking species can safely be identified with it provided the plant is found naturally occurring or occurring in the wild. I do not have KEY or description of ornamental *Ruellia*, be it *nudiflora* or something other.
Thank you Regards surajit koley a *non-botanist* member of efloraofIndia google group On Fri, Sep 11, 2015 at 3:21 PM, J.M. Garg <[email protected]> wrote: > Forwarding again for any assistance in the matter please. > > ---------- Forwarded message ---------- > From: surajit koley <[email protected]> > Date: 6 September 2015 at 13:28 > Subject: [efloraofindia:231120] sk2015sept01/01 - Ruellia tuberosa L. > To: efloraofindia <[email protected]> > > > We have many threads on this species in our database. One very similar > looking is *R. nudiflora* (Engelm. & A.Gray) Urb. I offered my view > regarding the two species in a thread during acanthaceae fotnight - > https://groups.google.com/d/msg/indiantreepix/1lAYbRPj5Vg/IbxEddCUJ-AJ. > > For the past one and a half hour i was trying to get more data on the two > species, nothing found except several herbaria and protologues - > > - http://biodiversitylibrary.org/page/741729#page/385/mode/1up > - http://biodiversitylibrary.org/page/32267498#page/261/mode/1up > > The matter gets more complicated by the fact that the first link above > informs that *R. nudiflora* is *R. tuberosa* non Linn.! > > I am pretty sure about the species I see around, a wild one now or may we > call naturalised. Ref. > http://keyserver.lucidcentral.org/weeds/data/03030800-0b07-490a-8d04-0605030c0f01/media/Html/Ruellia_tuberosa.htm > > More recent description of *nudiflora* can be viewed at - > http://swbiodiversity.org/seinet/taxa/index.php?taxon=2569. Rather recent > herbarium, collected in host country can be viewed at > http://www.lib.utexas.edu/exhibits/wildflowers/detail.php?work_urn=urn%3Autlol%3Awildflower.txu-herb-dexter-495&work_title=Ruellia+nudiflora. > The species has much longer corolla tube and shorter capsules. More > photographs of this 2nd species which I do not know can be accessed at > http://www.wildflower.org/gallery/species.php?id_plant=RUNU. KEW also > hosts several "type" herb. reflecting longer corolla tube. At the same time > KEW also hosts one isosyntype - > http://apps.kew.org/herbcat/getImage.do?imageBarcode=K000882480. > > However, sepals and capsules in *R. tuberosa* L. seems longer, > cylindrical than the *nudiflora*. > > Or maybe someday somebody would tell us *R. tuberosa* L. and *R. tuberosa* non > L. are two var. of same taxon! > > Thank you > Regards > > p.s. the attached pics do not reproduce the flower colour trully, the 2nd > image comes somewhat closer! > > -- > 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'. > -- 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]. Visit this group at http://groups.google.com/group/indiantreepix. For more options, visit https://groups.google.com/d/optout.

