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Poa smut

Scientific Name
Tilletia cathcartae
Scientific Author
Durán & G.W. Fisch.
Taxonomy
Basidiomycota, Exobasidiomycetes, Tilletiales, Tilletiaceae
Status
Exotic establishment in Australia
Reliability
High
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Diagnostic Images

Light micrograph
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Caption
Tilletia cathcartae on Poa ensiformis - BRIP 7807. Scale bar = 10 µm
Source
Roger Shivas DEEDI
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Diagnostic Images (3)
Diagnostic Notes
Sori in all ovaries of an inflorescence, inconspicuous, hidden by the floral envelopes, ovoid to broadly fusiform, c. 1.0–1.5 mm long and 0.5 mm wide, at first covered by a pericarp that ruptures exposing the reddish brown powdery spore masses mixed with sterile cells.

Spores globose, subglobose to broadly ellipsoidal or slightly irregular, 32–42 × 30–36 µm, golden brown; wall 4–5 µm thick, including the 3–4 µm high flattened verrucae that can give the spore surface an areolate appearance, with 9–14 darker irregular areas per spore diameter.

Sterile cells few, globose, irregular or angular, 18–30 µm diam., hyaline; wall 3.5–5.0 µm thick, smooth.
More Information
Specimen Contact
Roger Shivas
Author
Roger Shivas
Created
09/12/2010 02:57 AEST
Last Updated
09/12/2010 14:57 AEST
Citation
Roger Shivas (2010) Poa smut (Tilletia cathcartae) Updated on 12/9/2010 2:57:45 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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