MUSHROOMS have complementary inner and outer structures and a morphological organisation that shows natural geometrical patterns. Mushrooms evidence singularity, as each one is slightly different from the other; regularity, as there are sort of "prototypes" scattered in thousands of groups; and irregularity (or random) in the way they grow and expand under the forest. However, what interests me more, is the fact that a mushroom is a complete and fine piece of minimal architecture. Picture: "Mushrooms", from Collier's Encyclopedia, 16, pages 736-737, plate I. Copyright © Crowell-Collier Publishing Company, 1962.