Great information Pankaj ji I will have to create more links on our Monthly episodes page.for Orchidaceae This is how an expert coordinating makes a difference. Same happened with Manoj ji coordinating Poaceae fortnight, all my pending grasses got identified and all doubtful identifications got corrected.
Dr. Gurcharan Singh Retired Associate Professor SGTB Khalsa College, University of Delhi, Delhi-110007 Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018. Phone: 011-25518297 Mob: 9810359089 http://www.gurcharanfamily.com/ http://people.du.ac.in/~singhg45/ On Thu, Oct 3, 2013 at 1:35 PM, Pankaj Kumar <sahanipan...@gmail.com> wrote: > Its doesnt matter a lot how plants grow just on the ground surface (I > didnt say underground, I said Sub-terrenean). The roots and stem are > underground. It is almost leafless, some leaf like structures are > there but they are not green in colour. The flower doesnt reach above > ground but they are exactly on the ground surface. They are pollinated > by termites. The genus is called Rhizanthella and they are found in > Australia exclusively, represented by one three species. > http://en.wikipedia.org/wiki/Rhizanthella > Pankaj > > On Thu, Oct 3, 2013 at 3:51 PM, Smita <smita.ras...@gmail.com> wrote: > > Pankaj ..i will like to know more about SUB-TERRENEAN orchids how they > can > > grow below ground > > also examples and pictures ( if possible ) > > Thanks > > > > > > On Thursday, October 3, 2013 11:00:32 AM UTC+5:30, Dr Pankaj Kumar wrote: > >> > >> Orchids are very unique and they are found in wide range of habitats > >> at diverse elevations. > >> Still they are highly sensitive. They can be EPIPHYTIC (growing on > >> other trees- not as parasite); TERRESTRIAL (growing on ground); > >> AQUATIC (growing in water); SEMI-AQUATIC (growing near water or in > >> areas which are waterlogged for significant duration of the year); > >> SUB-TERRENEAN (growing completely below ground). > >> > >> They occupy great range of elevations depending on the region of earth > >> they are found. > >> People say that epiphytic orchids are not found at higher elevations. > >> But this is not true. Some taxa like Dendrobium brevicaule are found > >> upto 4000m elevation. Overall, terrestrial orchids reach much higher > >> elevation that epiphytic ones. > >> > >> Orchids occupy wide range of habitats. However the diversity is lower > >> in homogenous vegetation where as it is higher in heterogenous > >> forests. Highest diversity is found in warm and humid areas like > >> tropical rain forests. > >> > >> One of the main reasons for their high diversity and wide distribution > >> is the absence of endosperm in the seeds. Hence they are very light > >> and can be carried to greater distance by wind. When they fall in new > >> area, they either adapt well or they die. In rare cases they try to > >> customize themselves to the new environment giving rise to a new > >> species over a long period of time. Orchids are cross pollinated and > >> natural hybrids are known to occur in wild. Cross pollination helps in > >> maintaining high genetic diversity within and between different > >> populations. > >> > >> Regards > >> Pankaj > >> > >> -- > >> *********************************************************** > >> Pankaj Kumar, Ph.D. > >> IUCN-SSC Orchid Specialist Group Asia > >> > >> Office: > >> Conservation Officer > >> Orchid Conservation Section > >> Flora Conservation Department > >> Kadoorie Farm and Botanic Garden (KFBG) Corporation > >> Lam Kam Road, Tai Po, New Territories, Hong Kong. > >> Residence: > >> 151, 1st Floor, Tai Om Tsuen > >> Lam Tsuen, Tai Po, New Territories, Hong Kong. > >> > >> email: pku...@kfbg.org; sahani...@gmail.com > >> Phone: +852 2483 7128 (office - 8:30am to 5:00pm); +852 9436 6251 > >> (mobile). Fax: +852 2483 7194 > > > > -- > > You received this message because you are subscribed to the Google Groups > > "efloraofindia" group. > > To unsubscribe from this group and stop receiving emails from it, send an > > email to indiantreepix+unsubscr...@googlegroups.com. > > To post to this group, send email to indiantreepix@googlegroups.com. > > Visit this group at http://groups.google.com/group/indiantreepix. > > For more options, visit https://groups.google.com/groups/opt_out. > > > > -- > *********************************************************** > Pankaj Kumar, Ph.D. > IUCN-SSC Orchid Specialist Group Asia > > Office: > Conservation Officer > Orchid Conservation Section > Flora Conservation Department > Kadoorie Farm and Botanic Garden (KFBG) Corporation > Lam Kam Road, Tai Po, New Territories, Hong Kong. > Residence: > 151, 1st Floor, Tai Om Tsuen > Lam Tsuen, Tai Po, New Territories, Hong Kong. > > email: pku...@kfbg.org; sahanipan...@gmail.com > Phone: +852 2483 7128 (office - 8:30am to 5:00pm); +852 9436 6251 > (mobile). Fax: +852 2483 7194 > > -- > You received this message because you are subscribed to the Google Groups > "efloraofindia" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to indiantreepix+unsubscr...@googlegroups.com. > To post to this group, send email to indiantreepix@googlegroups.com. > Visit this group at http://groups.google.com/group/indiantreepix. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "efloraofindia" group. To unsubscribe from this group and stop receiving emails from it, send an email to indiantreepix+unsubscr...@googlegroups.com. To post to this group, send email to indiantreepix@googlegroups.com. Visit this group at http://groups.google.com/group/indiantreepix. For more options, visit https://groups.google.com/groups/opt_out.
