| flag smut fungus | (n) a smut fungus causing a smut in cereals and other grasses that chiefly affects leaves and stems and is characterized chains of sori within the plant tissue that later rupture releasing black masses of spores |
| green smut fungus | (n) fungus causing green smut in rice, Syn. Ustilaginoidea virens |
| smut | (n) any fungus of the order Ustilaginales, Syn. smut fungus |