Urocystis agropyri on Leymus arenarius. A Habit (C-F-111316) B, C spore balls in LM (C-F-111316) D–F spore balls in SEM (C-F-102482) G distribution map. Scale bars: 0.5 cm (A); 10 µm (B, C); 5 µm (D–F); 500 km (G).