Tilletia texana Long


Tilletia festuca-octoflorana Zundel


Sori infecting all ovaries of an inflorescence, ovoid to broadly fusiform, 2–4 (–5) mm long, 1–2 mm wide, partly hidden by the floral envelopes, initially covered by the pericarp that ruptures, exposing the pale brown agglutinated mass of spores and sterile cells.

Spores globose, subglobose to broadly ellipsoidal, 16–23 (–25) × 16–21 (–23) µm, pale lemon-yellow, with a sheath up to 5 µm thick in which the 1.5–3.0 µm high conical spines protrude, 4–6 per spore diameter.

Sterile cells few, subglobose to ellipsoidal, 12-20 × 10–16 µm, hyaline; wall 2-layered, 1.5–4.5 µm thick, smooth.

Host family: Poaceae
Host species: Austrostipa setacea (R.Br.) S.W.L.Jacobs & J.Everett


States & Territories: QLD


Durán & Fischer (1961: 110) examined the Queensland specimen, noting that it represented the first collection outside of North America as well as the first record on Stipa [Austrostipa].