Sori in anthers. Spore mass powdery, brown vinaceous.
Spores 6.5–10.5 × 5.5–9 μm, globose, subglobose or broadly ellipsoidal, pale coloured, the wall reticulate, with 6–8 (–9) meshes per hemisphere, meshes irregularly polygonal; in SEM interspaces smooth, rarely some with very low warts.
Not formally evaluated, but the species is common and widespread, and unlikely to be threatened.
Infecting anthers of Silene dioica.
Throughout Great Britain, also reported from the Channel Is and Ireland.