On Fri, Jun 19, 2009 at 6:39 PM, Madhuri Pejaver <formpeja...@yahoo.com>wrote:
> > > Dear Aparna, > So nice of you to write all details. > But--- > when some differences are seen from the sps how to decide whether it is a > subsps or a varity? > Madhuri > > --- On Thu, 18/6/09, Aparna Watve <aparnawat...@gmail.com> wrote: > > > From: Aparna Watve <aparnawat...@gmail.com> > > Subject: [indiantreepix:13414] Re: Scientific names of Plants > > To: "Usha Desai" <ushande...@gmail.com> > > Cc: indiantreepix@googlegroups.com > > Date: Thursday, 18 June, 2009, 6:17 PM > > Dear > > all, > > This was a tricky one. : I > > had to open the ICBN (International Code for Botanical > > Nomenclature) to check it. Thanks Ushaji for making me go > > back to basics. > > > > I am giving my notes, but I > > request other botanists on this list to correct me where > > wrong, > > > > > > > > [1] Morinda tinctoria subsp pubescence > > > > this one is simple: it > > means that the species Morinda tinctoria has > > two/more subspecies, the first one is Morinda tinctoria subsp tinctoria > (usually written only as Morinda tinctoria) and the other one is Morinda > tinctoria subsp pubescence > > (which must be differing from the first in some > > characters) (there could be more subspecies under this same > > species, having different ending epithets). At times the > > connecting link (subsp.) is not used as there is only one rank below that > of > > species. > > > > > > [2] Morinda tinctoria var tomentosa > > > > Similar to above: it means > > that the species Morinda tinctoria has two > > or more varieties, the first one is Morinda > > tinctoria var. tinctoria > > (usually written only as Morinda > > tinctoria) and the second one is Morinda > > tinctoria var. tomentosa (which must be > > differing from the first in some characters) (there could be > > more varieties under this same species, having different > > ending epithets) > > > > > > [3]Morinda > > tinctoria f xanth > > > > This is a form or forma of the species. In > > botanical > > nomenclature, a form (forma) is a > > low-level taxonomic > > rank > > below that of variety. The abbreviation "f." or > > the full "forma" is put before the infraspecific > > epithet to indicate the rank. A form usually designates a > > group with a noticeable but minor > > deviation. > > > > [4] Morinda tinctoria X Morinda > > citrifolia > > > > This is an interspecific > > hybrid. > > > > [5]Morinda > > tinctoria 'Neil' > > This is a cultivar of Morinda > > tinctoria. A cultivar name consists of a > > botanical > > name followed by a cultivar > > epithet. The cultivar epithet is capitalised and > > put between single quotes: preferably it should not be > > italicized (unless it was given 1 > > January 1959, > > when it was Latin form and therefore > > tolerated. But the practice was discontinued as it was often > > confused with the botanical names). > > > > > > [6]+Morindixora 'Sangita' > > This looks like is a > > intergeneric hybrid of Morinda and Ixora genus and a cultivar named as > > ‘Sangita’ > > > > > > The picture goes very > > confusing …. > > Cannot agree more that it is > > all often very confusing. BUT there is a method in this > > madness. The web has a number of websites explaining plant > > nomenclature, best and easiest of which is wikipedia but the > > ultimate one (although needing lots of patience to > > understand) is International Code for Botanical > > Nomenclature. > > > > > > So have I passed the exam? : > > ) > > > > Aparna > > PS: also attaching a word file of the answer as the > > italics may be lost in mail > > > > --- > > Dr. Aparna Watve > > Asha Appt, Shanti Nagar, Ekata Colony > > Nr. BSNL tower, Akbar Ward, > > Seoni.480661 > > tel: 07692-228115 > > mobile: (0)9755667710 and 9822597288 still works > > > > > > > > > > > > > > > > Love Cricket? Check out live scores, photos, video highlights and > more. Click here http://cricket.yahoo.com > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "indiantreepix" group. To post to this group, send email to indiantreepix@googlegroups.com To unsubscribe from this group, send email to indiantreepix+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.co.in/group/indiantreepix?hl=en -~----------~----~----~----~------~----~------~--~---
