|[Note Guidelines] Photographer's Note|
|CYATHEA DEALBATA, PONGA, SILVER TREE FERN|
To me this is quite messy. But it is as it is seen in the bush, with no one tidying it up as they do in gardens.
The trunk of the Silver Fern contains masses of old leaf bases and compressed roots. This fern can be easily identified by the trunk, which is covered in peg like remains of the stipe and the underneath of the frond, which is silver in ferns that are 3 to 4 years old. Young silver ferns can be recognised by their silver stipe (the back of the leaves do not turn silver initially).
What we see here is a trunk that is not made of wood like other trees, but is instead a hardened, central pith surrounded by the root mass. Roots grow down from the central, apical region and along the outside of the rhizome trunk towards the ground. Over the years, the layers of roots often build up and give the trunk the appearance of a dense fibrous mass. These roots will eventually reach the soil and help to anchor the plant and keep it from falling over.
But it also has a ďSkirtĒ of dead fronds. The slender trunk has black pegs of remaining dead fronds and sometimes branches. Each season, adventitious roots around the base of the trunk have a flush of growth, increasing the girth of the stem.
Fern stems are efficient at conducting nutrients and water and at supporting large fronds. To do this there is a well-developed vascular tissue system. Many of their cell walls are also strengthened with a chemical called lignin.
Therefore the tall trunks of tree ferns are strengthened by:
--- deposits of lignin which add great strength to cell walls
--- reinforcing the lower trunk with thick, interlocking mats of tiny roots.
Have I confused you? I think Iíve confused myself now. Iíve had enough of this Silver fern. Iíll have to get out and see what else I can find interesting...
Thanks Greg for giving me the idea to change the title. Shaggy is MUCH better than messy.
LordPotty, red45, sAner, liquidsunshine, PDP, Luc has marked this note useful
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Well...Thats a wicked note Janice.Full of fascinating fern facts.
That looks like a big Ponga too.There seems to be a lot more Mamuku around these here parts.
Very powerfull! I like your photo very much. I'm sorry in Poland aren't such exotic trees ;-) But it is a reason yo go for holydays!!!
- [2005-02-11 4:28]
Janice - it looks like my Wheel of Fortune upside down :-) This silver tree fern must be really big. I like its shapes and shaggy textures. Excellent note. What about flowers? Maybe you could post some flowers from NZ Janice?
- [2005-02-11 4:46]
Let nature show us its artistic beauty. You did well.
- [2005-02-11 6:52]
Hello Janice. Treeferns rapidly became my favorite tree/plant in november 2004. :) I have a picture of a treefern and I'll post it some day. :) Back to your picture. ;)Well done, good composition. Nice colors! Maybe it lacks a bit of sharpness or is it my poor eyesight?
- [2005-02-11 11:00]
Very nice shot of a very mature tree fern Janice. Good notes to compliment the image. Well done
Another great shot Janice,
NZ is really a very beautiful place. great details and clarity. Excellent notes too.
Thanks for posting
- [2005-02-11 15:05]
Janice, it's an interesting plant and the note is excellent however, I think you can do better judging from you usual standard. It's a little bit soft in focus and I find my eye jumping afound for something to focus on. I would try a different POV, maybe looking up the trunk or a fuller view of the 'crown'. Interesting TN subject though, well done.
- [2005-02-12 20:37]
Personal assessment of the photo: good
Great visual impact.
Aptness of the photo for the site: excellent
Personal assessment of the note: complete
well done, Janice.