Sori in anthers. Spore mass powdery, dark livid, dark purple or dark vinaceous.
Spores 6.5–10 (–11) × 5.5–9.5 μm, mainly globose or subglobose, sometimes broadly ellipsoidal or ovoid, the wall reticulate, 6–8 meshes per hemisphere, meshes irregularly polygonal, (0.5–) 0.7–1.4 (–1.6) μm diam.; in SEM interspaces smooth.
Not formally assessed, but the species has a wide distribution and is unlikely to be significantly threatened.
Infecting anthers of Lychnis flos-cuculi.
Widespread in northern England and Scotland, also reported from Norfolk, South Wales and the Channel Is.