My Dad knew to recognize them ("manatarci" mushrooms) in the woods behind our house. They are very tasty! "Field Mushrooms for Sale by Roadside Near Cluj-Napoca" (Though they look like foresty Boletes)
Diagrams of B. Betts from Geometrical Psychology, by Louisa S. Cook, which details New Zealander Benjamin Bett’s remarkable attempts to mathematically model the evolution of human consciousness through geometric forms
Romanian Cristian Boian& Digital Art & For a tutorial on how he produces his art using automated techniques and mathematical curves, see & actions to create organic imagery& Computer Arts magazine online.