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Themeda inflorescence smut

Scientific Name
Sporisorium enteromorphum
Scientific Author
(McAlpine) Vánky
Taxonomy
Basidiomycota, Ustilaginomycetes, Ustilaginales, Ustilaginaceae
Status
Native Australian Species
Reliability
High
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Diagnostic Images

Light micrograph
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Caption
Sporisorium enteromorphum on Themeda triandra - BRIP 7871. Scale bar = 10 µm
Source
Roger Shivas DEEDI
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Diagnostic Images (3)
Diagnostic Notes
Sori occupying the central spikelets, the racemes (intestine-shaped, 12–25 mm long and 1–2 mm wide) or the entire inflorescence (long-linear or flagelliform, 50–110 mm long and 2–3 mm wide), at first covered by a greyish brown peridium that disintegrates exposing a dark brown granular-powdery mass of spore balls mixed with groups of sterile cells and several filiform columellae.

Spore balls subglobose, oblong or irregular, 25–60 (–80) × 20–45 µm, many-spored, disintegrating at maturity.

Spores subglobose, ovoid to slightly irregular, 5.5–8.0 × 5–7 µm, yellowish brown; wall uniformly c. 0.5 µm thick, finely punctate-verrucose.

Sterile cells somewhat larger than the spores, 8–12 µm long, in short chains or irregular groups, subhyaline, collapsed in old specimens.
More Information
Specimen Contact
Roger Shivas
Author
Roger Shivas
Created
22/11/2010 05:26 AEST
Last Updated
23/11/2010 15:29 AEST
Citation
Roger Shivas (2010) Themeda inflorescence smut (Sporisorium enteromorphum) Updated on 11/23/2010 3:29:46 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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