Pycnoporus cinnabarinus, also known as the cinnabar polypore, is a saprophytic, white-rot decomposer. Its fruit body is a bright orange shelf fungus. It is common in many areas and is widely distributed throughout the world. It is inedible.[2] It produces cinnabarinic acid to protect itself from bacteria.[3]
The stipe and the pore surface had a positive reaction with potassium hydroxide.
^Eggert C. Laccase-catalyzed formation of cinnabarinic acid is responsible for antibacterial activity of Pycnoporus cinnabarinus. Microbiol Res. 1997;152(3):315-318. doi:10.1016/S0944-5013(97)80046-8