Moreaua opaca Vánky


Sori in the swollen spikelets filled with a black granular-powdery mass of spore balls, produced on the surface of the innermost floral organs, completely hidden by the floral envelopes.

Spore balls subglobose, ovoid, ellipsoidal, elongate to irregular, 25–55 (–60) × 20–45 µm, blackish brown, opaque, permanent, composed of numerous spores that cannot be counted or measured due to the black colour of the balls.

Host family: Cyperaceae
Host species: Tetraria capillaris (F.Muell.) J.M.Black


States & Territories: NSW