Aspergillus ustus

**Semantic type:** Fungus

**Definition:** A species of fungi in the family Aspergillaceae, characterized by elongated conidial heads with bent Hulle cells scattered in a pigmented mycelium, with conidia that are large, rough-walled, and spherical and range in color from green to yellow-brown. A. ustus infections in humans are occur mostly in immunocompromised individuals.

**Synonyms:** - ASPERGILLUS USTUS - Sterigmatocystis ustus