Very lucid answer Tanay, thanks a lot! It most certainly removed 'a bit of my doubts' as you so aptly put it! I've forgotten too much of my botany - only school level that too - to be totally doubt free! :) But I'm at least clear about this one aspect, thanks to you!
-vnd On 15 June 2010 10:29, tanay bose <[email protected]> wrote: > Dear Vinay Ji, > > > A huge number of species from both Brugmansia as well as Datura are > developed into garden plants (as far as I know) from centuries; several > hybrids are regularly developed all round the world. Any and almost all > plant can regenerate its own kind through seed propagation. All the plants > today we see in our garden were wild at some period of time this is even > true for our crop plants. Domestication of a plant may not disable its > reproductive capacity but horticulturists many a times through experiments > have tried to generate plants through vegetative propagation. Many plants do > not accepts the process of vegetative propagation and hence compel one to > propagate it through seeds. The case may be true for this to genera. > > Another very important point for which vegetative reproductions are carried > out in horticultural plants is heredity. When a plant reproduces through > seeds all of the daughter plants are not *in toto* with the mother plant > both genetically and morphologically (or can be same) the reason has long > been decipher by Gregor Mendel. Horticulturalists are not always interested > in genetic shift but are very selective when it comes to morphological loss > or shift which is not at all accepted by them. Hence when you propagate a > plant through vegetative means they are *in toto* with the mother plant > (both genetically and morphologically) this is a good option for them. This > is the reason why many plants like roses, hibiscus and many more to say are > propagated through stem cutting (vegetative). > > Hope this will remove a bit of your doubts, if you still have some feel > free to mail me back. > > Regards > > Tanay > > > > > On Tue, Jun 15, 2010 at 10:03 AM, Vinay Das <[email protected]> wrote: > >> Tanay ji, >> >> You wrote this : "Brugmansias do not come true from seed and are very >> easily propagated via cutting." But natural (i.e. w/o human intervention) >> propagation of Brugmansias must still rely on seeds right? Or are there >> plants that propagate *naturally* using bits of themselves (cuttings)? >> >> thanks, >> -Vinay >> >> On 15 June 2010 09:53, tanay bose <[email protected]> wrote: >> >>> Dear Preeti j, >>> >>> >>> There is nothing to get ashamed of and feel you are ignorant. Many >>> members of the group do have a passion for floristic diversity of India but >>> may not know the scientific name or not aware of the botanical aspect of the >>> plants. It is a common aspect of this group that we welcome all people with >>> the vision to respect and love plant. You may be not aware of the botanical >>> name but made the lovely effort to take its photo and post it out in this >>> group where other members can see it and if possible identify it >>> (scientifically). Your as well as contribution from all members are >>> invaluable for us and will help us all to reach our goal to create Eflora of >>> India. Contributions from all members have made this group largest of its >>> kinds in India and probably of the world with 1241 members. >>> >>> Both Brugmansia & Datura are in the same family of Solanaceae. >>> >>> Brugmansia grow into trees, produce brown wood and are perennial in >>> warmer climates. 99% of their flowers point down and are usually called >>> Angels Trumpet. They produce green bean like seed pods. >>> >>> Datura are annual bushes (except in climates with no frost) and do not >>> produce brown wood. Their stems and trunks are almost always green. Their >>> flowers point up and are mistakenly called Angels Trumpet but are actually >>> Devils Trumpet. They produce round; spiky or bumpy seed pods that can >>> literally explode when ripe throwing seeds all over the place if the pod is >>> not well hydrated. >>> >>> Daturas are most easily propagated via seed and come true from seed. >>> Brugmansias do not come true from seed and are very easily propagated via >>> cutting. >>> >>> "Datura is annual bushes (except in climates with no frost) and do not >>> produce brown wood. Their stems and trunks are almost always green." >>> Some varieties have BLACK stems and trunks (very gothic-looking). >>> >>> Datura as a genus has much more variation between species than >>> Brugsmansia. Most Brugsmansia look very alike with the exception of >>> Brugsmansia sanguinea and vulcanicola. Datura species on the other hand have >>> several different growth habits and may be low lying, spreading, or upright >>> with green to purple stems. Several species have hairy stems and leaves >>> especially Datura ferox. The most interesting Datura species I grow is >>> Datura ceratocaula, a semi-aquatic species from Mexico and South America >>> that has an unbranched stem with small leaves only at the apical portion. >>> >>> Datura is a short lived perennial down here, and lives three to four >>> years, and does produce some brown woody trunks and stems. However, they >>> will never get more than about 4 feet tall, no matter how much you feed >>> them. There are some varieties of datura that actually sprawl. >>> >>> *All parts of both are extremely toxic.* The roots, stems, flowers, >>> leaves and seeds contain the chemicals atropine, scopolamine and hyoscyamine >>> in varying concentrations. If you have toddlers or pets that like to sample >>> plants you must take special care to make sure they cannot come in contact >>> in anyway with either plant. If ingested it could kill them. >>> >>> *When handling either, make it a point not to touch your face, eat or >>> handle food until you have washed your hands.* There have been a few >>> posts in the last few months describing the symptoms of Solanaceae >>> poisoning. If you have ever experienced headaches, confusion or vision >>> problems after working with your Brugmansia or Datura, you have >>> inadvertently poisoned yourself. Most of the time you will not connect the >>> two. I have poisoned myself unknowingly harvesting Datura seeds when I had >>> open cuts on my fingers or neglected to wash my hands right after harvesting >>> the seeds. >>> >>> (Ref: Garden Web) >>> >>> >>> >>> Regards >>> >>> Tanay >>> >>> -- >>> Tanay Bose >>> +91(033) 25550676 (Resi) >>> 9830439691(Mobile) >>> >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "efloraofindia" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]<indiantreepix%[email protected]> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/indiantreepix?hl=en. >>> >> >> > > > -- > Tanay Bose > +91(033) 25550676 (Resi) > 9830439691(Mobile) > > > Press *ENTER* to look up in Wiktionary or *CTRL+ENTER* to look up in Wikipedia -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. 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