hymenomycetes

from The Century Dictionary.

• A subclass or an order of fungi, of the group Basidiomycetes, characterized by having a hymenium on the free, exposed surface of the sporophore, the compound structure which bears it.

from the GNU version of the Collaborative International Dictionary of English.

• noun plural (Bot.) One of the great divisions of fungi, containing those species in which the hymenium is completely exposed.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun Plural form of hymenomycete.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun used in some classifications; usually coextensive with order Agaricales: mushrooms; toadstools; agarics; bracket fungi