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Stemphylium sp.

Mitosporic fungus. Hyphomycetes.Teleomorph (sexual state): Pleospora (Ascomycete).
Distribution Where Found Mode of Dissemination
Ubiquitous;
cosmopolitan.
Approx. 6 species.
Soil, wood, decaying vegetation. Some species found on leaves are plant pathogens. Dry spore.
Wind.
Allergen Potential Opportunist or Pathogen Potential Toxin Production
Known allergen. Shares allergens with Alternaria.
Type I allergies (hay fever, asthma).
A rare report of phaeohyphomycotic sinusitis (identification questionable). Not known.
Growth Indoors Industrial Uses Other Comments
Growth indoors is rare. Not known. None.
Characteristics: Growth/Culture Notes on Spore Trap Recognition Notes on Tape Lift Recognition
Grows on general fungal lab media; sporulation may be slow to absent. "Light/dark cycling" may induce sporulation. Distinctive, not easily confused with other genera, although young spores or spore fragments may be confused with other pigmented muriform spores such as Ulocladium, Alternaria or Pithomyces. Distinctive and readily identifiable on tape lifts. Although Stemphylium is rarely found growing indoors, it may be seen in dust as part of the normal influx of outdoor particles.
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