 The 16th @-@ century Flemish botanist <unk> <unk> traced the practice of <unk> it into milk to Frankfurt in Germany , while Carl Linnaeus , the " father of taxonomy " , reported it from <unk> in southern Sweden , where he had lived as a child . He described it in volume two of his Species <unk> in 1753 , giving it the name Agaricus <unk> , the specific epithet deriving from Latin <unk> meaning " fly " . It gained its current name in 1783 , when placed in the genus Amanita by Jean @-@ Baptiste <unk> , a name sanctioned in 1821 by the " father of <unk> " , Swedish naturalist Elias Magnus Fries . The starting date for all the <unk> had been set by general agreement as January 1 , 1821 , the date of Fries 's work , and so the full name was then Amanita muscaria ( L. : <unk> . ) Hook . The 1987 edition of the International Code of <unk> Nomenclature changed the rules on the starting date and primary work for names of fungi , and names can now be considered valid as far back as May 1 , 1753 , the date of publication of Linnaeus 's work . Hence , Linnaeus and <unk> are now taken as the <unk> of Amanita muscaria ( L. ) <unk> .. 
