Moreaua tetrariae (Vánky) Vánky


Tolyposporium tetrariae Vánky


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

Spore balls subglobose, ellipsoidal, elongate or irregular, 35–90 (–105) × 30–65 (–80) µm, dark reddish brown, composed of very many firmly cohering spores.

Spores subcuneiform to subpolyhedrally irregular, in surface view polyangular, 7–13 (–20) × 9–15 µm, in optical median view 10–20 µm long, reddish brown; wall of the contact sides 0.5–0.8 µm thick, smooth, wall of the free surface 1.5–3.0 µm thick, including the low irregular warts.

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


States & Territories: TAS, WA