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 <[email protected]> wrote: > From: Aparna Watve <[email protected]> > Subject: [indiantreepix:13414] Re: Scientific names of Plants > To: "Usha Desai" <[email protected]> > Cc: [email protected] > 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 [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.co.in/group/indiantreepix?hl=en -~----------~----~----~----~------~----~------~--~---
