/ Thesaurus / U Synonyms of ustilaginoidea virens Find synonyms for: Noun1. green smut fungus, Ustilaginoidea virens, fungususage: fungus causing green smut in riceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: cautious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language