SINCE 1828
Tilletiaceae
plural noun
Til·le·ti·a·ce·ae
Definition of Tilletiaceae
: a family of smuts (order Ustilaginales) that is distinguished from the Ustilaginaceae by the simple promycelium bearing the spores in an apical cluster and that includes numerous genera some of which (as Tilletia and Urocystis) contain economically important parasites of cultivated plants — compare ustilago
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