Leaf Venation

Hi all,

I have been working on a series of research looking at self-organisation and self-assembly. As part of this I have been using grasshopper and various plugins to try and explore these phenomena digitally.
I came across a brilliant set of scripts and applets by nervous system, a design studio working with algorithms to produce jewellery and other designs. In particular I am trying to replicate their hyphae lamps that are grown using algorithms based on leaf venation.
See their work here:

http://n-e-r-v-o-u-s.com/blog/

If you scroll down they have placed a video explaining step by step how the growth system works.

I am still learning grasshopper and kangaroo and also have tried to look at hoopsnake for looping or iterative functions. I am trying to achieve this without scripting initially. I feel that this is achievable within grasshoppers definitions.

I have added notes to my definition so far to try and highlight where I am going.
This is a work in progress but I would really appreciate any comments or any help anyone can give with this to let me know if I am heading in the right direction.