Polysporella
Polysporella Woron., Izv. Kavkaz. Muz. 10(1): 7 (1916).
Index Fungorum number: IF 28793; Facesoffungi number: FoF 08641, 1 morphological species (Species Fungorum 2022), no molecular data available.
Associated with leaf spot. Sexual morph: Ascomata pseudothecial, scattered, immersed, later erumpent through the epidermis, flattened, parenchyma composed of polygonal cells. Asci oval, apex thickened, sessile, aparaphysate, 24–27(–32)-spored. Ascospores 1-celled, at first hyaline, late slightly brown, oblong ovate, aggregated. Asexual morph: Unknown (adapted from Videira et al. 2017).
Type species: Polysporella woronowii Woron.
Notes: Polysporella is characterised by pseudothecial, scattered, immersed ascomata, oval, sessile asci and 1-celled oblong-ovate ascospores. Lumbsch and Huhndorf (2007) referred Polysporella to Mycosphaerellaceae. The placement of Polysporella in Mycosphaerellaceae is doubtful. Fresh collections with DNA sequence data are needed to confirm the taxonomic placement of Polysporella.
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