I wrote a patch in 2003 to draw Lindenmayer (L-system) root structures. I recently re-visited it to play around with it. I've posted an image gallery, as well as other approaches to representing L-systems (series b, series c) and the Actionscript source code as part of a library including source for generating the kind of flakes I posted back in December. Code for generating cellular automata structures will be added to the library in due course.

The interface between natural and synthetic structures raises its own questions about what we perceive as natural - we have an increasingly volatile conception of nature, and perceptions will alter radically over the coming years and decades thanks to genomics. I like the play in Autechre's EP covers, which are rigorously 'programmed' but betray some resemblance to natural formations,