Stropharia strop·ha·ria uncommon noun 1. genus of gill fungi with brown spores that is closely related to Agaricus; here placed in its own family Strophariaceae Synonymsgenus Strophariaring-stalked fungus Related words Word family StrophariaceaeStropharia ambiguaStropharia hornemanniiStropharia rugoso-annulata Broader terms fungus genus Parts Strophariaceae Part of Stropharia ambiguaStropharia hornemanniiStropharia rugoso-annulata WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.