View Single Post
Old Jan 1 2009, 03:32 AM   #7
Join Date: Dec 2008
Location: USA
Gender: M
Fan of: Harperhall Trilogy
Now Reading: The Crown by Deborah Chester
Default Re: Anatomy of a Skybroom


Well i'm no botonist, but I have explaination for your questions too!

A Leaf bring in nutrients from the inner most center wood of its twig, which continues down to the inner most center wood of it's branch, and to the trunk. The Outer rings end at a leaf growth.

So you haver one central nutrient uptake channel through the center of the tree, and several downward waste/food channels through the the outer rings. The oldeest (and less numerous) branches and leaves on them, send the waste/food down what would be the outmost ring layer, because of this growth patern, a leaf/twig would be overgown after one turn, in escence, the next years growth causes it to be pushed off it's twig when it's waste/food channel (outer ring) becomes a bark layer. A new leaf will grow from the current two turns of rings at the end of each twig.

So a leaf is part of the current turn of growth, which connects it's waste channel to a prior year of growth. When a outer layer Ring layer no longer has any leaves connected to it, that ring layer is then 'dead' and becomes a bark layer. In the case of a twig, that would be the layer of two turns prior to the leaf growing. When a branch or trunk layer has no more viable twigs that proccess waste/food connected to it, that layer becomes the inner most bark layer.

Nut growth would behave similar to a leaf expect that the nut does not need to send out waste/food. It's attached at the point where a leaf meats the thrid turn bark on a twig, and migrates up the twig each turn of growth, untill the point of it's fourth year, where it's attachment point become a new branch split, which pushes the nut off the tree.
Danel is offline   Reply With Quote