Agaricus arorae
... that the cuticle of the mushroom Agaricus arorae, which was first described in Santa Cruz County, California, turns yellow in potassium hydroxide when cut?
... that the cuticle of the <a href="./Mushroom" id="mwC2Q" rel="mw:WikiLink" title="Mushroom">mushroom</a> <i id="mwC2U"><b id="mwC2Y"><a href="./Agaricus_arorae" id="mwC2c" rel="mw:WikiLink" title="Agaricus arorae">Agaricus arorae</a></b></i>, which was first described in <a href="./Santa_Cruz_County,_California" id="mwC2g" rel="mw:WikiLink" title="Santa Cruz County, California">Santa Cruz County, California</a>, turns <a href="./Yellow" id="mwC2k" rel="mw:WikiLink" title="Yellow">yellow</a> in <a href="./Potassium_hydroxide" id="mwC2o" rel="mw:WikiLink" title="Potassium hydroxide">potassium hydroxide</a> when cut?