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Triodia culm smut

Scientific Name
Ustilago inaltilis
Scientific Author
Vánky & A.A. Mitchell
Taxonomy
Basidiomycota, Ustilaginomycetes, Ustilaginales, Ustilaginaceae
Status
Native Australian Species
Reliability
High
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Diagnostic Images

Host symptoms
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Caption
Ustilago inaltilis on Triodia longiloba - BRIP 49123. Scale bar = 5 mm.
Source
Roger Shivas DEEDI
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Diagnostic Images (3)
Diagnostic Notes
Sori as blister-like 1–5 mm wide swellings, several centimetres long, on the stems, by confluence often surrounding the stem, usually comprising the distal internodes extending to the floral stem on which only groups of aborted spikelets develop. Sori at first covered by the epidermis as a thin grey membrane that ruptures irregularly exposing the black dusty mass of spores.

Spores globose, subglobose to broadly ellipsoidal, often slightly irregular, rarely elongate, (5.5–) 6.0–9.5 (–10.5) × 5.5–8.0 (–9.0) µm (globose or subglobose spores 5.5–9.0 µm diam.), medium dark chocolate-brown; wall 1.0–2.0 (–2.5) µm thick, densely and prominently verrucose; spore profile minutely crenulate.
More Information
Specimen Contact
Roger Shivas
Author
Roger Shivas
Created
16/12/2010 12:55 AEST
Last Updated
16/12/2010 12:55 AEST
Citation
Roger Shivas (2010) Triodia culm smut (Ustilago inaltilis) Updated on 12/16/2010 12:55:13 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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