<Li> <P> Leaf of cow parsley, Anthriscus sylvestris, is 2 - or 3 - pinnate, not infinite </P> </Li> <P> Leaf of cow parsley, Anthriscus sylvestris, is 2 - or 3 - pinnate, not infinite </P> <Li> <P> Fractal spirals: Romanesco broccoli showing self - similar form </P> </Li> <P> Fractal spirals: Romanesco broccoli showing self - similar form </P>

Patterns and number in nature in the world