The Artists Conk, Artist Bracket, Artist Conch is a bracket fungus. The spore bodies are fan shaped and grow up to 40 centimeters across, woody-textured, hard and inedible. The spore body is white at first but turns a dark reddish brown. Artists can use this fungus as a drawing medium. The surface changes to dark brown if scratched with a sharp implement. Typically found at the base of trees or on logs. The pore surface is white and bruises brown. Nearly invisible to the naked eye, there are 4-6 tiny circular pores per millimeter. The pore tubes form layers beneath each other and a new layer is formed each year. These layers are separated by a brown tissue that is 4 to 12 millimeters deep.