Restiosporium eurychordae Vánky


Sori in all capsules of an inflorescence, rounded, flattened, 1.0–1.5 mm diam., hidden by the floral envelopes, filled with a dark blackish brown semi-agglutinated to granular-powdery mass of spore balls and spores.

Spore balls globose, ovoid, ellipsoidal to irregular, 50–100 (–140) × 30–80 µm, olivaceous brown to subopaque, composed of tens of loosely connected spores that separate readily by pressure.

Spores globose, ovoid, ellipsoidal, elongate, usually subpolyhedrally irregular, rarely with short acute tips at the angles, 11–20 (–24) × 9.0–13.5 (–14.5) µm, medium dark olivaceous brown; wall uniformly thick or slightly uneven, 1.0–2.0 (–2.5) µm thick; in LM smooth, in SEM finely low-verruculose, especially on the free surface.

Host family: Restionaceae
Host species: Eurychorda complanata (R.Br.) B.G.Briggs & L.A.S.Johnson


States & Territories: QLD, TAS