Byssochlamic Acid is a nonadride mycotoxin first isolated from Byssochlamiys fulva by Raistrick and Smith at the Univeristy of London, UK in 1933. Byssochlamic Acid is closely related to the mycotoxins rubratoxin B, produced by Penicillium rubrum, and glaucanic acid, isolated from P. glaucum. The reported pharmacology of Byssochlamic Acid is limited to antitumor and phytotoxic activity.