Dear Vinay Ji, I am not good when it comes to horticulture, any horticulturist members out here if responses to you post may give you a better explanation. Regards Tanay
On Tue, Jun 15, 2010 at 10:37 AM, Vinay Das <[email protected]> wrote: > 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 > -- Tanay Bose +91(033) 25550676 (Resi) 9830439691(Mobile) -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. 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