by Michael W. Beug Email: beugm@evergreen.edu
The Evergreen State College, Olympia WA
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Slide 54.
Agaricus hondensis is one of several similar woodland Agaricus species that can cause flu-like symptoms when eaten. Similar poisonous species include Agaricus helodes and Agaricus silvaticus. The odor of these woodland species is mild or of phenols or creosote and all stain yellow when a drop of KOH solution is applied to a piece of the flesh (diluted Dranoâ would work). While some people can eat these without ill effect, they are suspected of containing phenol, which is probably the cause of the resultant flu-like symptoms. Similar choice edible Agaricus species all have a pleasant almond odor and stain yellow slowly with KOH.
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