disease_substrate_flower
inflorescences
Causes stripe smut of grasses. Long chlorotic streaks develop on leaves which develop into sori containing the black teliospores. When these split open the leaves shred and curl back. Some stunting of the host also occurs and flowering is reduced. Sori have been seen in stolons and inflorescences. Similar symptoms are produced by Urocystis agropyri (CMI Descriptions 716).
Ustilago striiformis
Ustilago striaeformis