Art Forms of Nature

Ernst Haeckel. Biologist. Zoologist. Artist. Irregular symmetry dominates his work.
He idealizes natural forms in the same way that conceptual artists and mathematicians idealize geometry.
His drawings were published as a book, The Art Forms of Nature (that's a free download, by the way).

• Haeckel's Art Forms from Nature CD-ROM and Book (Dover Electronic Clip Art) 
• Haeckel on Wikipedia  
• The Fractal Geometry of Nature 
• The Computational Beauty of Nature: Computer Explorations of Fractals, Chaos, Complex Systems, and Adaptation