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Pseudochaetochloa smut

Scientific Name
Tilletia pseudochaetochloae
Scientific Author
R.G. Shivas & Vánky
Taxonomy
Basidiomycota, Exobasidiomycetes, Tilletiales, Tilletiaceae
Status
Native Australian Species
Reliability
High
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Diagnostic Images (4)
Diagnostic Notes
Sori in some ovaries of an inflorescence, conspicuous, at first green and fusiform, later brown and obovoid, with a narrow pedicel-like proximal part, 4–8 (–10) mm long, 2–5 mm wide, covered by a pericarp that ruptures longitudinally exposing the blackish brown powdery mass of spores and sterile cells.

Spores globose, ovoid or broadly ellipsoidal, 18–25 (–28) × 18–22 (–25) µm, pale to dark yellowish brown, with densely arranged 2.5–4.0 µm high subacute or blunt warts. Several warts may fuse to form irregularly polygonal areas of different sizes appearing darker in surface view, 6–12 per spore diameter.

Sterile cells very variable in size, 10–50 (–55) µm long, hyaline to pale yellowish brown, often collapsed; wall 1–7 µm thick, finely multilayered, smooth.
More Information
Specimen Contact
Roger Shivas
Author
Roger Shivas
Created
13/12/2010 03:23 AEST
Last Updated
13/12/2010 15:23 AEST
Citation
Roger Shivas (2010) Pseudochaetochloa smut (Tilletia pseudochaetochloae) Updated on 12/13/2010 3:23:53 PM Available online: PaDIL - http://www.padil.gov.au.
Image Use
Free for use under the Creative Commons Attribution 3.0 Australia License

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