Moreaua littoralis (G. Cunn.) Vánky

Synonyms

Tolyposporium littorale G. Cunn.

Description

Sori on the surface of the inner floral organs, usually in all spikelets of an inflorescence, filling the flowers with a black agglutinated to granular-powdery mass of spore balls concealed within the glumes.

Spore balls subglobose, ellipsoidal or irregular, 40–100 × 35–70 µm, reddish brown to opaque, composed of at least 15–50 firmly cohering spores.

Spores irregular in shape and size, obovate, subcuneate or subpolyhedral, 13–25 × 12–18 µm, olivaceous to reddish brown; wall uneven, on the free surface 3–6 (–8) µm thick, covered by coarse irregular warts, on the contact sides 1–2 µm thick, smooth.

Hosts
   
Host family: Cyperaceae
   
Host species: Baumea acuta (Labill.) Palla
Baumea juncea (R.Br.) Palla

Distribution

States & Territories: VIC, WA