hymenomycetes
  層菌目組
  Hy·me·no·my·ce·tes n. pl.  Bot. One of the great divisions of fungi, containing those species in which the hymenium is completely exposed.
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  Hymenomycetes
       n : used in some classifications; usually coextensive with order
           Agaricales: mushrooms; toadstools; agarics; bracket fungi
           [syn: class Hymenomycetes]