Ustilago

**Semantic type:** Fungus

**Definition:** A genus of smut fungi in the phylum Basidiomycota with a branched, septate, hyaline, intercellular mycellium, with or without haustoria. Species in this genus infect the floral parts of wheat, barley, oat, maize, sugarcane, rye and wild grasses.

**Synonyms:** - USTILAGO