Hispidin is a naturally occuring precursor to fungal luciferin responsible for luminosity in mushrooms.
Definition
ChEBI: 11-Methoxyyangonin is an aromatic ether and a member of 2-pyranones.
Source
Hispidin has been isolated as a metabolite from various species such as Polyporus hispidus,Phaeolus schweinitzii, Phellinus pomaceus, Phellinus igniarius, and Gymnopilus species.