POISONOUS AND HALLUCINOGENIC MUSHROOMS
by Michael W. Beug Email: beugm@evergreen.edu
The Evergreen State College, Olympia WA
Slide 56.
Agaricus xanthodermus is one of the most frequently
and strongly poisonous Agaricus species. It is readily identified
because the flesh rapidly stains bright yellow when bruised, even without
application of KOH solution. Vomiting can be severe and is accompanied
by intestinal cramps, sweating at times, and sometimes diarrhea. Onset
is generally about an hour after consuming the mushrooms. Recovery is largely
complete in a day. Agaricus xanthodermus, except for the bright
yellow staining and unpleasant odor, is easily confused with one of several
different fine edible Agaricus species. This genus is not for the
careless identifier or the unobservant.
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