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Themeda smut

Scientific Name
Sporisorium benguetense
Scientific Author
(Zundel) L. Guo
Taxonomy
Basidiomycota, Ustilaginomycetes, Ustilaginales, Ustilaginaceae
Status
Native Australian Species
Reliability
High
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Diagnostic Images

Host symptoms
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Caption
Sporisorium benguatense on Themeda triandra - BRIP 27402. Scale bar = 5 mm
Source
Roger Shivas DEEDI
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Diagnostic Images (3)
Diagnostic Notes
Sori occupying the racemes, cylindrical, c. 10–20 mm long and 1 mm wide, covered by a dark brown peridium of sterile cells which disintegrates from the apex exposing a blackish brown semi-powdery spore mass surrounding a long simple columella.

Spores when mature solitary, subglobose, broadly ellipsoidal to subpolyhedrally irregular, 11.0–14.5 × 10.5–13.0 µm, olivaceous brown; wall uniformly c. 1 µm thick, minutely and sparsely to moderately densely echinulate.

Sterile cells in small groups; individual cells about the size of the spores or larger, 11–18 µm long, subhyaline to pale yellowish brown, smooth, collapsing with age.
More Information
Specimen Contact
Roger Shivas
Author
Roger Shivas
Created
22/11/2010 01:53 AEST
Last Updated
23/11/2010 15:16 AEST
Citation
Roger Shivas (2010) Themeda smut (Sporisorium benguetense) Updated on 11/23/2010 3:16:53 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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