层菌目组
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.
Hymenomycetes n : used in some classifications; usually coextensive with order Agaricales: mushrooms; toadstools; agarics; bracket fungi [syn: {class Hymenomycetes}]