An eriovisus is a genus of fungi within the family Pucciniaceae, commonly known as rust fungi. These fungi are plant pathogens that can cause diseases in a wide range of host plants. Eriovisus species are characterized by their distinctive spore-producing structures called telia, which are often found on the underside of infected plant leaves. These fungi play a significant role in plant pathology and can have detrimental effects on agricultural crops and natural ecosystems.