Restiosporium baloskionis Vánky & R.G. Shivas

Description

Sori filling the capsules with a dark brown semi-agglutinated to powdery mass of spore balls.

Spore balls subglobose, ovoid, ellipsoidal, elongate or irregular, 45–150 × 35–100 µm, olivaceous brown to subopaque, composed of very many readily separating spores.

Spores globose, ovoid, ellipsoidal, elongate or subpolyhedrally irregular, 9–17 (–20) × 8.0–13.5 µm, pale olivaceous brown; wall thin, uniformly c. 0.5 µm, smooth.

Hosts
   
Host family: Restionaceae
   
Host species: Baloskion australe (R.Br.) B.G.Briggs & L.A.S.Johnson
Baloskion gracile (R.Br.) B.G.Briggs & L.A.S.Johnson
Baloskion stenocoleum (L.A.S.Johnson & O.D.Evans) B.G.Briggs & L.A.S.Johnson
Baloskion tetraphyllum (Labill.) B.G.Briggs & L.A.S.Johnson

Distribution

States & Territories: NSW, TAS, VIC

Comments

Restiosporium baloskionis has spores that are paler and thinner-walled than those of R. pallentis which occurs on Baloskion pallens in Queensland.