<< Previous Next >>

Silver Sporangia


Silver Sporangia
Photo Information
Copyright: Janice Dunn (Janice) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 3460 W: 145 N: 5905] (17690)
Genre: Plants
Medium: Color
Date Taken: 2005-05-21
Categories: Trees
Camera: Canon EOS 300D
Exposure: f/6.3, 1/30 seconds
Details: Tripod: Yes
More Photo Info: [view]
Photo Version: Original Version
Theme(s): Janice's FerNZ, New Zealand ferns [view contributor(s)]
Date Submitted: 2005-05-21 4:29
Viewed: 880
Points: 25
[Note Guidelines] Photographer's Note
NEW ZEALAND’S SILVER FERN
Cyathea dealbata

Today I spent a few hours in the native bush area that covers the top of the cliffs by our local beaches. I am going to buy a macro lens soonish, and Pam (Coasties) has very kindly lent me her Macro lens to try out. So I had fun, with lots of failures but some photos I am happy with.

Something I noticed today is that not every frond has these SPORANGIA some are just plain silver. They are the sterile fronds of the fern. The brown dots you can see here on the white/silver side of the Silver Fern are SPORES, which together are called SPORANGIA. The spores are on the fertile fronds.

ALL ABOUT FERNS IN A NUTSHELL:
Ferns do not produce seeds, but instead bear SPORES on the underside of their FRONDS.

SPOROPHYLL are fern FRONDS that bear SPORANGIA, e.g. the ‘fertile fronds’ of ferns.

SPORANGIA are clusters of SPORES found on the underside of a SPOROPHYLL.

SPORES are the asexual reproductive cells on ferns.

Fern spores are contained in SPORANGIA, which are borne on the leaf surface in clusters called SORI.

SORI come in all shapes, sizes and locations. They may appear as dots, dashes or lines on the leaf blade. They may occur tucked under the leaf edge as in the maidenhair ferns or in particular arrays on the leaf surface. Here on the Silver fern they appear as small brown dots.

All clear to you? It’s taken a while to sort this lot out, so hopefully it is correct.

Another important point to note is that SPORANGIA is also SPORANGIA in Polish. Thanks Greg for that piece of information. Kia ora to you Greg…

www.aerolink.co.nz
Comandante, liquidsunshine, naki, Luc, dew77, coasties, mjdundee, sAner, red45, JeanMichel, magiqa has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
Discussions
ThreadThread Starter Messages Updated
To cdplayer: ThanksJanice 1 09-26 01:33
To magiqa: Thanks MonicaJanice 1 05-28 17:27
To ornis: Thanks JMJanice 1 05-24 15:20
To fungiman: ThanksJanice 1 05-22 04:05
To liquidsunshine: Thanks AlanJanice 4 05-21 07:43
To coasties: FrustrationJanice 1 05-21 06:12
You must be logged in to start a discussion.

Critiques [Translate]

Hello janice!
A masterpiece again.I liked the composition very much.Thanks for sharing.

Another great shot Janice,
The image seems a little shakey to me, could be slow shutter speed and no tripod?
The composition is great, the colours are good and excellent notes as always.
Thanks for posting

  • Great 
  • naki Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 421 W: 27 N: 782] (2694)
  • [2005-05-21 5:02]

Hi Jenice, great shot.
Excellent composition and colors. Very good notes.
Thanks for sharing.

  • Great 
  • dew77 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5171 W: 297 N: 4050] (13069)
  • [2005-05-21 5:19]

Hi Janice!
Great work.Lighting,framing,DOF,framing and composition are excellent.TFS...:-)

Hi Janice

Practise will make perfect... honest. Just keep trying. Vary your settings and while you are still new to using the macro lens note down what settings you are using, condtions and anything else that may have a direct result to the outcome of the image. This is so you can refer to your notes at a later stage when you get back home and review them on your computer. Keep it up. Well done!

Hello Janice,

One of the very view pictures where more sharpness would be a fault.
Very nice colours and good note.
Thank you.

Thomas

  • Great 
  • sAner Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1654 W: 79 N: 1456] (4742)
  • [2005-05-21 6:45]

Hey Janice,

The composition of this photo is fantastic. I really like the repetitive pattern of leaves. It's indeed a bit shaky but you explained why. I like the colors and the exposure is great. Well done & TFS!

Regards,
Pieter

  • Great 
  • red45 Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2814 W: 75 N: 7958] (26909)
  • [2005-05-21 17:44]

Thank you Janice, Kia Ora to you too :-) SPORANGIA are good, cute and tasty :-) I like your photo of SPORANGIAS with nice bonus of rest of fern :-) Composition is little psychedelic :-) I feel dizzness watching it! Janice - you discovered first photo-drug :-) Great post!
ps. I walked almost all day today and took few pictures which I really like - soon on TN.

Janice are!!! not very sharp but nice POV was fern moving in the wind?

  • Great 
  • Graal Gold Star Critiquer/Silver Workshop Editor/Silver Note Writer [C: 787 W: 31 N: 20] (5002)
  • [2005-05-22 14:13]

Hi Janice!
Interesting shot and note. very good composition. I like it. well done.
Regards,
Aleksander

  • Great 
  • livios Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2306 W: 324 N: 4306] (16856)
  • [2005-05-22 19:12]

Janice, another beautiful composition.

I like the green shades and the contrast with the bg.

Well done.

Hi Janice. When I want to see beautiful ferns and other wonders, I know where to go. This one is no exception, with a very good composition and a striking way of presenting grey-sharp against green-blurred. Kind of color and focus contrast making this an attractive image. Just a little nit...looks a bit shaky. If you are not sure of the steadiness of your tripod, pushing the button might create some movement blur. A simple way to overcome this is to use the timer.
Regards
JM

very interesting!! I saw t-shirts with this fern on, when I visited Auckland. But I did not know it was NZ:s national flower. Your pic is very beautiful and well composed!

The repetition is amazing! Repetition is found in the leaves,seeds and even in the background when looking at the out of focus leaves. Wonderful, just wonderful! Excellent composition and depth of field. Your picture has a 3-D effect which I find pleasing.

Calibration Check
















0123456789ABCDEF