Thanks for furnishing the complete details. Regards,
Shweta On Sat, Sep 11, 2010 at 11:23 PM, Vijayasankar <[email protected]>wrote: > Jaculators (hook shaped retinacula found within fruits) are modified > structures of funicle (i.e. seed stalk). These jaculators, due to the > hygrochastic property of fruits, act like 'triggers' in pistols and expell > the seeds with lot of force (and sound!) to maximum distance possible. A > characteristic seed dispersal mechanism in the subfamily Acanthoideae of > family Acanthaceae. > > It is helpful espl when the plants grow near water (for e.g. Ruellia > tuberosa, the pic posted here), the mother plant tries to 'sow' her seeds in > a suitable soil (not in water), so she expells the seeds to longer distance > possible with full energy by using this unique & effective adoptation. > > With regards > > Vijayasankar > > > On Sat, Sep 11, 2010 at 11:51 AM, Pankaj Kumar <[email protected]>wrote: > >> Seeds having Jaculators is one of the unique features common to almost >> all Acanthaceae members. >> Regards >> Pankaj >> >> >> On Sat, Sep 11, 2010 at 7:59 PM, tanay bose <[email protected]> >> wrote: >> > Ruellia tuberosa, >> > Yes it seed haveJaculators >> > Tanay >> > >> > On Sat, Sep 11, 2010 at 2:34 PM, Shantanu <[email protected]> wrote: >> >> >> >> Thanks for the ID Sweta ji. >> >> Nice informations about the seeds of this plant. >> >> >> >> cheers! >> >> Shantanu : ) >> >> >> >> Shantanu Bhattacharya. >> >> B.Sc, M.Sc (Zoology) >> >> University of Calcutta. >> >> Teaching Faculty. >> >> Dept. of Biology. >> >> Vivekananda Mission School(ICSE). >> >> Joka. Kolkata. >> >> >> >> >> >> >> >> >> >> On Sep 11, 11:27 am, Bhatt Sweta <[email protected]> wrote: >> >> > Seems to be *Ruellia*, belonging to *Acanthaceae* family. >> >> > Interesting thing about seeds of this plant - when the dry seeds are >> >> > dropped >> >> > into water, they crackle just like Rye in hot oil. This is due to >> >> > specialised structures called *Jaculators* present in them. >> >> > >> >> > Regards, >> >> > >> >> > Shweta >> >> > >> >> > On Sat, Sep 11, 2010 at 11:40 AM, Shantanu Bhattacharya >> >> > <[email protected]>wrote: >> >> > >> >> > >> >> > >> >> > > Hi >> >> > > got this nice mauve flower growing beside a canal in my locality >> >> > > (Kolkata). >> >> > > Can someone give the name of the species? >> >> > >> >> > > regards >> >> > > Shantanu :) >> >> > >> >> > > Shantanu Bhattacharya. >> >> > > B.Sc, M.Sc (Zoology) >> >> > > University of Calcutta. >> >> > > Teaching Faculty. >> >> > > Dept. of Biology. >> >> > > Vivekananda Mission School(ICSE). >> >> > > Joka. Kolkata.- Hide quoted text - >> >> > >> >> > - Show quoted text - >> > >> > >> > -- >> > Tanay Bose >> > Research Assistant & Teaching Assistant. >> > Department of Botany. >> > University of British Columbia . >> > 3529-6270 University Blvd. >> > Vancouver, B.C. V6T 1Z4 (Canada) >> > Phone: 778-323-4036 (Mobile) >> > 604-822-2019 (Lab) >> > [email protected] >> > >> > >> >> >> >> -- >> *********************************************** >> "TAXONOMISTS GETTING EXTINCT AND SPECIES DATA DEFICIENT !!" >> >> >> Pankaj Kumar Ph.D. (Orchidaceae) >> Research Associate >> Greater Kailash Sacred Landscape Project >> Department of Habitat Ecology >> Wildlife Institute of India >> Post Box # 18 >> Dehradun - 248001, India >> > > -- *Bhatt Shweta* *Asso. Prof.,* TCSC, *Doctoral Research Student,* M.S.U.
