Good evening Viplav Ji, Years ago i read an article on sex changes of fishes<http://en.wikipedia.org/wiki/Sequential_hermaphroditism>, recently i have read a news on "virgin births" in snakes<http://www.bbc.co.uk/nature/19555550>. Your document reminds me all these.
Thank you very much, Regards, surajit On Fri, Oct 19, 2012 at 11:31 AM, [email protected] <[email protected]>wrote: > Hi Surajit ji, > > There are several Sandpaper trees near my home in Mumbai and have been > observing them regularly since the last few years. From what I have noticed > here, it is usually dioecious and less commonly monoecious. One such > monoecious specimen in Kandivali bears female flowers & fruit in the > lowermost branches while the upper branches bear male flowers. > > In a paper on the floral morphology of *Streblus asper *(Sept. 1975), BPS > Chauhan wrote that "the plant is monoecious with male and female flowers on > the same or on two different branches. But those from South India have been > reported to be dioecious by Rau (1942)." He then inferred that "*Streblus > asper* Lour. is monoecious or dioecious." This was published in the Agra > University Journal of Research in 1976. > > Interestingly, *Streblus asper* is said to be dioecious in Dr Almeida's *Flora > of Maharashtra* while it is described as being monoecious ("male and > female flowers are produced separately on the same tree") in his book *The > Trees of Mumbai*, pg. 171. > > Have attached a very interesting document on the condition of monoecy and > dioecy for your reference. It was published in a journal called 'The > Phytologist' in 1859. Among other things, it indicates how certain > variables such as temperature can influence the formation of male and > female flowers. I am equally curious to know how and why this happens. > > Best wishes, Viplav > > > 2012/10/16 surajit koley <[email protected]> > >> No problem Usha Di, now i have two Usha Di... the question remains there, >> how can be a plant both, monoecious and dioecious !!! >> >> Regards, >> >> surajit >> >> >> >> On Tue, Oct 16, 2012 at 11:08 AM, ushadi Micromini < >> [email protected]> wrote: >> >>> Surajit... >>> this is why I am Usha di >>> >>> >>> This other lady (one of other 3 I think) who share the same name >>> >>> You want to respond to Usha Desai Ji of Bombay.... >>> SHe is part of the active group that goes for tree appreciation walks in >>> Bombay... >>> (TAW) is usually mentioned after her name... >>> >>> Usha di >>> === >>> >>> >>> >>> >>> On Mon, Oct 15, 2012 at 8:30 PM, surajitkoley < >>> [email protected]> wrote: >>> >>>> Usha Di, >>>> >>>> A description at FoC - >>>> http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=200006384 >>>> >>>> I ask the same question too....! >>>> >>>> Regards, >>>> >>>> surajit >>>> >>>> >>>> On Monday, 18 April 2011 11:43:28 UTC+5:30, usha desai wrote: >>>>> >>>>> THANK YOU VIPLAV FOR SHARING THIS. >>>>> >>>>> Friends >>>>> Kandivali [North suburb of Mumbai] has many Sand Paper Trees. >>>>> As Viplav told me this should be declared AS The Tree of Kandivali as >>>>> it is one of the original flora of the area. >>>>> What is interesting is the tree is supposed to be dioecious[male and >>>>> female flower on separate trees.]..but Viplav saw both on the same tree , >>>>> it also had fruits...male flowers are in group and easy to notice but >>>>> for female ,it is solitary and really tiny so one has to hunt for >>>>> it....PROBABLY VIPLAV IS THE ONLY PERSON WHO HAS MANAGED TO GET IT >>>>> PHOTOGRAPHED...GOOGLE SEARCH WAS FUTILE... >>>>> My question to learned botanist is how does one explain that a >>>>> dioecious tree is presenting as monoecious.....many trees where we saw >>>>> male >>>>> flowers had fruits....female flowers are dificult to locate.. Thanking you >>>>> all in advance. >>>>> yrs sincerely Usha Desai [TAW] >>>>> >>>>> On 16 April 2011 18:38, sheetal chaudhari <[email protected]> wrote: >>>>> >>>>>> ohh wow, have never seen this tree in flowering stage >>>>>> >>>>>> Thanks Viplav Ji >>>>>> >>>>>> regards, >>>>>> Sheetal Pachpande >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> On Fri, Apr 15, 2011 at 12:25 AM, [email protected] >>>>>> <[email protected]>wrote: >>>>>> >>>>>>> Dear friends, >>>>>>> >>>>>>> Sharing some pictures of the female flowers & fruit of the Sandpaper >>>>>>> Tree [Streblus asper] observed in Kandivali, North Mumbai. >>>>>>> >>>>>>> I rarely indulge in photography and am grateful to my friend >>>>>>> Hitendra Agrawal for agreeing to join me and photographing these. >>>>>>> >>>>>>> I joined this group in July 2010 and keep learning thanks to the >>>>>>> unceasing efforts of the active members. >>>>>>> >>>>>>> Best wishes, Viplav >>>>>>> >>>>>> >>>>>> >>>>> >>> >>> >>> -- >>> Usha di >>> =========== >>> >>> >> > --
