
Northern Hemisphere, widespread on decaying conifer wood. Multiple fatal poisonings in Japan (2004).
Saprotrophic on dead conifer wood, especially spruce and fir.
Late summer to autumn.
Pleurocybellazetidine
Causes acute encephalopathy in patients with renal impairment. Novel toxin pleurocybellazetidine causes brain edema and seizures. 2004 outbreak in Japan killed 19 people.