Definition of Agaricales
: an extensive order of basidiomycetous fungi that includes the typical gilled mushrooms and a number of related forms all having the basidia produced in a distinct hymenial fruiting layer usually spread over the surface of a definite but transitory fruiting body which may be flat or be supinate, simply or compoundly club-shaped, or with the surface increased by pores, gills, or spines
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Origin and Etymology of agaricales
New Latin, from Agaricus + -ales
First Known Use: 1899
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