Moreaua elongata Vánky

Description

Sori in somewhat swollen flowers, completely hidden by floral envelopes, forming a black agglutinated to granular-powdery mass of spore balls on the surface of the innermost floral organs (filaments, gynoecium).

Spore balls subglobose, ellipsoidal, elongate to irregular, 50–150 (–190) × 40–130 µm, reddish brown, composed of many spores that separate readily by pressure.

Spores in surface view variable, polyangular-irregular, 5.5–15.0 × 5.0–10.5 µm; in lateral view elongate, rarely subtriangular, 15–40 µm long; wall of the free surface 1.0–1.5 µm thick, with sparse irregular warts; wall of the contact sides c. 0.5 µm thick, smooth.

Hosts
   
Host family: Cyperaceae
   
Host species: Baumea tetragona (Labill.) S.T.Blake

Distribution

States & Territories: NSW