层担子菌类

[ noun ]
used in some classifications; usually coextensive with order Agaricales: mushrooms; toadstools; agarics; bracket fungi
<noun.plant>

Hymenomycetes \Hy`me*no*my*ce"tes\, n. pl. [NL., fr. Gr. ? a
membrane + ?, ?, a mushroom.] (Bot.)
One of the great divisions of fungi, containing those species
in which the hymenium is completely exposed. --M. J. Berkley.