Dear all, Is the posted picture is *Brugmansia arborea* ( L. ) Lagerh. of Solanaceae?
On Tue, Jun 15, 2010 at 10:40 AM, tanay bose <[email protected]> wrote: > 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. > 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. > -- Muthu Karthick, N Junior Research Fellow Care Earth Trust Chennai - 61 www.careearthtrust.org -- 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]. For more options, visit this group at http://groups.google.com/group/indiantreepix?hl=en.
