Genus of fungi
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Petriella is a genus of fungi in the family Microascaceae. Species in the genus are typically found in plant material and dung in nature. Indoors, they are commonly found in wet wood, particularly common under kitchen sinks and bathrooms where there is relatively slowly on persistently wet wood. It produces a "Graphium" or "Scedosporium" in the anamorph state. "Petriella" produces sticky cirrus of reddish brown ascospores at maturity from small black ascocarps. No reports of mycotoxins, pathogenicity, or allergy are known.
The genus name of "Petriella" is in honour of Lionello Petri (1875-1946), who was an Italian botanist (Mycology) and Phytopathologist, who worked with Oreste Mattirolo in Florence. 
The genus was circumscribed by Mario Curzi in Boll. Staz. Patol. Veg. Roma vol.10 on page 384 in 1930.
References.
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