Moreaua actinoschoeni R.G. Shivas & Vánky

Description

Sori in the flowers, comletely hidden by the glumes, covering ovaries and stamens with a black, agglutinated, later granular-powdery mass of spore balls.

Spore balls globose, subglobose, broadly ellipsoidal or slightly irregular, 22–58 × 20–50 µm, yellowish brown to dark chocolate-brown, composed of several firmly adhering spores that do not separate by pressure.

Spores in surface view subglobose to subpolyangular, 10–20 × 6–10 µm, yellowish to dark chocolate-brown; wall on the free surface 1.0–3.0 µm thick, densely verruculose; wall on contact sides thin, 0.5–3.0 µm, smooth.

Hosts
   
Host family: Cyperaceae
   
Host species: Actinoschoenus sp.

Distribution

States & Territories: WA