*POLLEN* Am posting photos of pollen grains which I got by teasing the anthers on a glass slide with a pin. I managed to take the photos with a cheap "Students Microscope" to which I have added an oil immersion lens and my entry level digital camera (Sony DSC-W830). I think photos of pollen grains are a first for eflora as I have never seen them before. The pollen grains are prolate(cigar shaped) with a single longitudinal furrow (sulcus) running from pole to pole (monosulcate.) On Thursday, January 5, 2023 at 2:46:33 PM UTC+5:30 [email protected] wrote:
> Photo of Anthers > > On Thursday, January 5, 2023 at 2:44:55 PM UTC+5:30 [email protected] > wrote: > >> *Anthers* >> 5 stamens inserted in the corolla tube just below the throat (Three are >> visible in the photo). The stalk by which they are attached(filament) is >> very short. >> Peering from above one can see the anthers only in the intact flower. In >> this feature it resembles *Nonea. *They are brownish yellow (see photo) >> On Thursday, January 5, 2023 at 2:30:27 PM UTC+5:30 [email protected] >> wrote: >> >>> Dear Garg ji, >>> Thanks for the comment about FOP. Unfortunately their sketch does not >>> show calyx. In fact they must have followed Kazimi the most towering >>> authority there. >>> Need expert opinion on this >>> Here are more details about corolla >>> *Corolla:* >>> Corolla is very delicately attached to the flower and in two of them >>> fell down as I was examining the calyx. >>> The corolla is approximately infundibuliform (like an inverted bell).The >>> lobes are very small about 1-1.5 mm as is visible from the photo' >>> The tube has a slight sinuous bend at the bottom (See photo). As I will >>> show in a subsequent post the style is very short and must remain in the >>> bend. >>> I speculate that this would be to avoid self pollination as the anthers >>> are just below the throat. Indulging in further speculation one can surmise >>> that the peculiar shape of the corolla suggests that the pollinator might >>> be a moth or butterfly with a long proboscis which can descend to the >>> bottom of the tube. >>> Regards >>> Taffazull >>> On Thursday, January 5, 2023 at 11:58:53 AM UTC+5:30 JM Garg wrote: >>> >>>> Thanks, Taffazul ji. >>>> But Flora of Pakistan >>>> <http://www.efloras.org/florataxon.aspx?flora_id=5&taxon_id=250084488> >>>> says about *Nonea edgeworthii* A. DC. in DC. as 'Calyx 6-7 mm long, up >>>> to 10 mm in fruit, dense hairy; lobes linear' >>>> >>>> On Wed, 4 Jan 2023 at 17:43, [email protected] <[email protected]> >>>> wrote: >>>> >>>>> *A Surprising fact about the calyx* >>>>> >>>>> Regarding the calyx Kazmi in his authoritative work writes under the >>>>> heading *Nonea Medicus ,Philos .Bot.1:31.1789.:* >>>>> >>>>> "Calyx 5-fid , shortly or for ½ of its length, never divided to the >>>>> base, enlarged in fruit.." >>>>> >>>>> (SMA Kazimi : A Revision Of The Boraginaceae of West Pakistan And >>>>> Kashmir(1971), Journal of Arnold Arboretum,pp670-71.). >>>>> >>>>> I had fortunately two flowers left in the plant I had transferred to >>>>> the planter. I reexamined the calyx and found it is divided to the base. >>>>> This is also evident in the fruit. (See photos).It thus seems to me >>>>> that >>>>> it is either a sub genus or something different. Would request the >>>>> opinion >>>>> of experts. Many features resemble the genus *Nonea *including >>>>> position of anthers, gynobasic very short style morphology and >>>>> attachment >>>>> of nutlet which I will put in a subsequent post. >>>>> >>>>> >>>>> >>>>> -- >>>>> 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 [email protected]. >>>>> >>>> To view this discussion on the web, visit >>>>> https://groups.google.com/d/msgid/indiantreepix/68365947-d8b4-4d1b-a45a-166a263eb8ccn%40googlegroups.com >>>>> >>>>> <https://groups.google.com/d/msgid/indiantreepix/68365947-d8b4-4d1b-a45a-166a263eb8ccn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>>> . >>>>> >>>> >>>> >>>> -- >>>> With regards, >>>> J.M.Garg >>>> >>> -- 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 [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/indiantreepix/d7eb4420-c34b-42f8-9b0a-a20c6c28955en%40googlegroups.com.
