Urocystis chorizandrae J. Cunnington, R.G. Shivas & Vánky

Description

Sori in the interior of leaves and sterile culms, several centimetres long, filled with a black mass of spore balls. At maturity the sori split longitudinally, and the granular-powdery mass of spore balls is scattered.

Spore balls subglobose, ovoid to slightly irregular, 30–70 × 25–50 µm, dark reddish brown, composed of 1–6 (–8) spores completely surrounded by a layer of sterile cells.

Spores subglobose, broadly ellipsoidal, elongate or irregular, with 1 or 2 flattened sides, 18–30 × 12–20 µm, reddish brown, smooth.

Sterile cells globose, elongate to irregular, 6.5–19.0 × 5.5–12.0 µm, yellowish brown; wall 0.5–1.0 (–1.5) µm thick, smooth.

Hosts
   
Host family: Cyperaceae
   
Host species: Chorizandra enodis Nees

Distribution

States & Territories: VIC