Cut any white plastic of 2mm x 2mm and put it on the leaves while
capturing image. It will help.
I used to put the flowers on graph paper and then take pictures. Then
I later improvised and started keeping a black board with a scale
permanently fixed on one side.
It really helps in understanding the dimensions.
I shared image of lectotype of Passiflora caerulea in the morning.
Have you ever imagines why they have colour bands on the sides? They
also have a scale.

Pankaj


On Nov 4, 3:05 pm, prasad dash <[email protected]> wrote:
> You are absolutely right sir. I think we should use a scale as a measuring
> tool during photography along with all of your suggestions.
>
> Regards
>
> prasad
>
>
>
>
>
>
>
>
>
> On Fri, Nov 4, 2011 at 11:58 AM, Gurcharan Singh <[email protected]> wrote:
> > Thanks for appreciation Prasad ji
> > Actually when the group was first started, people knew plants by their
> > flowers only. For las few years I have been stressing the importance of
> > other parts of plant. I have often written on this forum that if members
> > supply at least 3-4 good photographs, identification process would be much
> > simpler.
> > 1. A photograph of habit in which leaves and position of flowers is
> > visible.
> > 2. Close up of side view of flower to show bract (if present), pedicel,
> > calyx and relative size of calyx and corolla
> > 3. top view close up of flower to show petals, stamens and carpels
> > 4. Fruit if available.
>
> > In recent days I have also been impressing upon the need to have
> > measurements but putting some sort of scale, since zooming can highly
> > distort the size estimation.
>
> > --
> > 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://people.du.ac.in/~singhg45/
>
> > On Fri, Nov 4, 2011 at 11:40 AM, prasad dash 
> > <[email protected]>wrote:
>
> >> Sir almost all of ur photos are new for me as they are from different
> >> phytogeographic zone. I think one don't not need any live speciem for
> >> identification of floral characters once he go through your image
> >> (especially this one now).
>
> >> Regards
>
> >> prasad
>
> >> On Thu, Nov 3, 2011 at 8:58 PM, Balkar Singh <[email protected]>wrote:
>
> >>> Superb Catch Sir
>
> >>> On Thu, Nov 3, 2011 at 8:08 PM, Satish Phadke <[email protected]>wrote:
>
> >>>> I am really afraid of attempting Asteraceae IDs
> >>>> Good to see so many Asteraceae plants from you.
>
> >>>> On Thu, Nov 3, 2011 at 5:36 PM, Gurcharan Singh 
> >>>> <[email protected]>wrote:
>
> >>>>> *Inula royleana* DC., Prodr. 5:464. 1836
>
> >>>>> Graceful alpine herb similar to Inula grandiflora in producing a
> >>>>> single terminal head on long peduncle but very distinct in its larger
> >>>>> (15-25 cm long as against 5-8 cm) basal leaves, distinctly clasping (and
> >>>>> not sessile or subsessile) larger leaves up to 15 cm long, and larger 
> >>>>> head
> >>>>> (10-12 cm across as against 5-7 cm), ray florets slender, golden yellow,
> >>>>> nearly 5-6 cm long (as against 2 cm), involucre bracts ovate.
>
> >>>>> Photographed Apharwat mountain at altitude of 3200 m in July.
>
> >>>>> --
> >>>>> 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://people.du.ac.in/~singhg45/
>
> >>>> --
> >>>> Dr Satish Phadke
>
> >>> --
> >>> Regards
>
> >>> Dr Balkar Singh
> >>> Head, Deptt. of Botany and Biotechnology
> >>> Arya P G College, Panipat
> >>> Haryana-132103
> >>> 09416262964
>
> >> --
> >> Prasad Kumar Dash
> >> Ecologist, Orissa, India
> >> email: [email protected]
> >> ph. 09437444241
>
> --
> Prasad Kumar Dash
> Ecologist, Orissa, India
> email: [email protected]
> ph. 09437444241

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