Disappointed with the Letter Tree experiment, I looked for other ways of "growing" branches of text. This time I used (again) Grant Skinner's excellent "Vein" example and worked at replacing the line drawing section with text generation.
Text drawing on the fly was a bit slow, so I alternated with the use of text in MovieClip frames as with the Fibonacci Text example. Results were much more rewarding so I spent a long time tweaking numbers and effects to collect a variety of textures, which are shown here.