Janthitrem f, as a 10-0-acetyljanthitrem e or janthitrem e monoacetate, is a type ofnaphthopyran. Janthitrem F is prepared by Penicillium janthinellum. Tremorgenic mycotoxi.
Lolitrem B is one of many toxins produced by a fungus called Epichloë festucae (var. lolii), which grows in perennial ryegrass. The fungus is symbiotic with the ryegrass; it doesn't harm the plant, and the toxins it produces kill insects that feed on ryeg